Remove sp-crypto-ec-utils patch reintroduced in latest rebase

b892b0122e for reasoning.

.github/actions/bitcoin/action.yml

@@ -12,7 +12,7 @@ runs:
   steps:
     - name: Bitcoin Daemon Cache
       id: cache-bitcoind
-      uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
       with:
         path: bitcoin.tar.gz
         key: bitcoind-${{ runner.os }}-${{ runner.arch }}-${{ inputs.version }}
@@ -37,4 +37,11 @@ runs:
 
     - name: Bitcoin Regtest Daemon
       shell: bash
-      run: PATH=$PATH:/usr/bin ./orchestration/dev/coins/bitcoin/run.sh -daemon
+      run: |
+        RPC_USER=serai
+        RPC_PASS=seraidex
+
+        bitcoind -txindex -regtest \
+          -rpcuser=$RPC_USER -rpcpassword=$RPC_PASS \
+          -rpcbind=127.0.0.1 -rpcbind=$(hostname) -rpcallowip=0.0.0.0/0 \
+          -daemon

.github/actions/build-dependencies/action.yml

@@ -1,6 +1,12 @@
 name: build-dependencies
 description: Installs build dependencies for Serai
 
+inputs:
+  github-token:
+    description: "GitHub token to install Protobuf with"
+    require: true
+    default:
+
 runs:
   using: "composite"
   steps:
@@ -14,36 +20,22 @@ runs:
         sudo apt autoremove -y
         sudo apt clean
         docker system prune -a --volumes
-      if: runner.os == 'Linux'
 
-    - name: Remove unused packages
+    - name: Install apt dependencies
       shell: bash
-      run: |
-        (gem uninstall -aIx) || (exit 0)
-        brew uninstall --force "*msbuild*" "*powershell*" "*nuget*" "*bazel*" "*ansible*" "*terraform*" "*heroku*" "*aws*" azure-cli
-        brew uninstall --force "*nodejs*" "*npm*" "*yarn*" "*java*" "*kotlin*" "*golang*" "*swift*" "*julia*" "*fortran*" "*android*"
-        brew uninstall --force "*apache2*" "*nginx*" "*firefox*" "*chromium*" "*chrome*" "*edge*"
-        brew uninstall --force "*qemu*" "*sql*" "*texinfo*" "*imagemagick*"
-        brew cleanup
-      if: runner.os == 'macOS'
+      run: sudo apt install -y ca-certificates
 
-    - name: Install dependencies
-      shell: bash
-      run: |
-        if [ "$RUNNER_OS" == "Linux" ]; then
-          sudo apt install -y ca-certificates protobuf-compiler
-        elif [ "$RUNNER_OS" == "Windows" ]; then
-          choco install protoc
-        elif [ "$RUNNER_OS" == "macOS" ]; then
-          brew install protobuf
-        fi
+    - name: Install Protobuf
+      uses: arduino/setup-protoc@a8b67ba40b37d35169e222f3bb352603327985b6
+      with:
+        repo-token: ${{ inputs.github-token }}
 
     - name: Install solc
       shell: bash
       run: |
         cargo install svm-rs
-        svm install 0.8.25
-        svm use 0.8.25
+        svm install 0.8.16
+        svm use 0.8.16
 
     # - name: Cache Rust
     #   uses: Swatinem/rust-cache@a95ba195448af2da9b00fb742d14ffaaf3c21f43

.github/actions/monero-wallet-rpc/action.yml

@@ -5,14 +5,14 @@ inputs:
   version:
     description: "Version to download and run"
     required: false
-    default: v0.18.3.1
+    default: v0.18.2.0
 
 runs:
   using: "composite"
   steps:
     - name: Monero Wallet RPC Cache
       id: cache-monero-wallet-rpc
-      uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
       with:
         path: monero-wallet-rpc
         key: monero-wallet-rpc-${{ runner.os }}-${{ runner.arch }}-${{ inputs.version }}
@@ -41,9 +41,4 @@ runs:
 
     - name: Monero Wallet RPC
       shell: bash
-      run: |
-        ./monero-wallet-rpc --allow-mismatched-daemon-version \
-          --daemon-address 0.0.0.0:18081 --daemon-login serai:seraidex \
-          --disable-rpc-login --rpc-bind-port 18082 \
-          --wallet-dir ./ \
-          --detach
+      run: ./monero-wallet-rpc --disable-rpc-login --rpc-bind-port 6061 --allow-mismatched-daemon-version --wallet-dir ./ --detach

.github/actions/monero/action.yml

@@ -5,16 +5,16 @@ inputs:
   version:
     description: "Version to download and run"
     required: false
-    default: v0.18.3.1
+    default: v0.18.2.0
 
 runs:
   using: "composite"
   steps:
     - name: Monero Daemon Cache
       id: cache-monerod
-      uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2
+      uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
       with:
-        path: /usr/bin/monerod
+        path: monerod
         key: monerod-${{ runner.os }}-${{ runner.arch }}-${{ inputs.version }}
 
     - name: Download the Monero Daemon
@@ -37,10 +37,8 @@ runs:
         wget https://downloads.getmonero.org/cli/$FILE
         tar -xvf $FILE
 
-        sudo mv monero-x86_64-linux-gnu-${{ inputs.version }}/monerod /usr/bin/monerod
-        sudo chmod 777 /usr/bin/monerod
-        sudo chmod +x /usr/bin/monerod
+        mv monero-x86_64-linux-gnu-${{ inputs.version }}/monerod monerod
 
     - name: Monero Regtest Daemon
       shell: bash
-      run: PATH=$PATH:/usr/bin ./orchestration/dev/coins/monero/run.sh --detach
+      run: ./monerod --regtest --offline --fixed-difficulty=1 --detach

.github/actions/test-dependencies/action.yml

@@ -2,10 +2,15 @@ name: test-dependencies
 description: Installs test dependencies for Serai
 
 inputs:
+  github-token:
+    description: "GitHub token to install Protobuf with"
+    require: true
+    default:
+
   monero-version:
     description: "Monero version to download and run as a regtest node"
     required: false
-    default: v0.18.3.1
+    default: v0.18.2.0
 
   bitcoin-version:
     description: "Bitcoin version to download and run as a regtest node"
@@ -17,6 +22,8 @@ runs:
   steps:
     - name: Install Build Dependencies
       uses: ./.github/actions/build-dependencies
+      with:
+        github-token: ${{ inputs.github-token }}
 
     - name: Install Foundry
       uses: foundry-rs/foundry-toolchain@cb603ca0abb544f301eaed59ac0baf579aa6aecf

.github/nightly-version

@@ -1 +1 @@
-nightly-2024-02-07
+nightly-2023-12-04

.github/workflows/coins-tests.yml

@@ -25,6 +25,8 @@ jobs:
 
       - name: Test Dependencies
         uses: ./.github/actions/test-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: |

.github/workflows/common-tests.yml

@@ -21,6 +21,8 @@ jobs:
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: |

.github/workflows/coordinator-tests.yml

@@ -9,8 +9,9 @@ on:
       - "crypto/**"
       - "coins/**"
       - "message-queue/**"
+      - "orchestration/message-queue/**"
       - "coordinator/**"
-      - "orchestration/**"
+      - "orchestration/coordinator/**"
       - "tests/docker/**"
       - "tests/coordinator/**"
 
@@ -20,8 +21,9 @@ on:
       - "crypto/**"
       - "coins/**"
       - "message-queue/**"
+      - "orchestration/message-queue/**"
       - "coordinator/**"
-      - "orchestration/**"
+      - "orchestration/coordinator/**"
       - "tests/docker/**"
       - "tests/coordinator/**"
 
@@ -35,6 +37,8 @@ jobs:
 
       - name: Install Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ inputs.github-token }}
 
       - name: Run coordinator Docker tests
         run: cd tests/coordinator && GITHUB_CI=true RUST_BACKTRACE=1 cargo test

.github/workflows/crypto-tests.yml

@@ -23,6 +23,8 @@ jobs:
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: |

.github/workflows/daily-deny.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
 
       - name: Advisory Cache
-        uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
         with:
           path: ~/.cargo/advisory-db
           key: rust-advisory-db

.github/workflows/full-stack-tests.yml

@@ -17,6 +17,8 @@ jobs:
 
       - name: Install Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ inputs.github-token }}
 
       - name: Run Full Stack Docker tests
         run: cd tests/full-stack && GITHUB_CI=true RUST_BACKTRACE=1 cargo test

.github/workflows/lint.yml

@@ -9,24 +9,21 @@ on:
 
 jobs:
   clippy:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-13, macos-14, windows-latest]
-    runs-on: ${{ matrix.os }}
-
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
 
       - name: Get nightly version to use
         id: nightly
-        shell: bash
         run: echo "version=$(cat .github/nightly-version)" >> $GITHUB_OUTPUT
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install nightly rust
-        run: rustup toolchain install ${{ steps.nightly.outputs.version }} --profile minimal -t wasm32-unknown-unknown -c clippy
+        run: rustup toolchain install ${{ steps.nightly.outputs.version }} --profile minimal -t wasm32-unknown-unknown -c rust-src -c clippy
 
       - name: Run Clippy
         run: cargo +${{ steps.nightly.outputs.version }} clippy --all-features --all-targets -- -D warnings -A clippy::items_after_test_module
@@ -37,8 +34,7 @@ jobs:
       # The above clippy run will cause it to be updated, so checking there's
       # no differences present now performs the desired check
       - name: Verify lockfile
-        shell: bash
-        run: git diff | wc -l | LC_ALL="en_US.utf8" grep -x -e "^[ ]*0"
+        run: git diff | wc -l | grep -x "0"
 
   deny:
     runs-on: ubuntu-latest
@@ -46,7 +42,7 @@ jobs:
       - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
 
       - name: Advisory Cache
-        uses: actions/cache@13aacd865c20de90d75de3b17ebe84f7a17d57d2
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
         with:
           path: ~/.cargo/advisory-db
           key: rust-advisory-db
@@ -64,7 +60,6 @@ jobs:
 
       - name: Get nightly version to use
         id: nightly
-        shell: bash
         run: echo "version=$(cat .github/nightly-version)" >> $GITHUB_OUTPUT
 
       - name: Install nightly rust
@@ -73,6 +68,14 @@ jobs:
       - name: Run rustfmt
         run: cargo +${{ steps.nightly.outputs.version }} fmt -- --check
 
+  dockerfiles:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
+      - name: Verify Dockerfiles are up to date
+        # Runs the file which generates them and checks the diff has no lines
+        run: cd orchestration && ./dockerfiles.sh && git diff | wc -l | grep -x "0"
+
   machete:
     runs-on: ubuntu-latest
     steps:

.github/workflows/message-queue-tests.yml

@@ -8,7 +8,7 @@ on:
       - "common/**"
       - "crypto/**"
       - "message-queue/**"
-      - "orchestration/**"
+      - "orchestration/message-queue/**"
       - "tests/docker/**"
       - "tests/message-queue/**"
 
@@ -17,7 +17,7 @@ on:
       - "common/**"
       - "crypto/**"
       - "message-queue/**"
-      - "orchestration/**"
+      - "orchestration/message-queue/**"
       - "tests/docker/**"
       - "tests/message-queue/**"
 
@@ -31,6 +31,8 @@ jobs:
 
       - name: Install Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ inputs.github-token }}
 
       - name: Run message-queue Docker tests
         run: cd tests/message-queue && GITHUB_CI=true RUST_BACKTRACE=1 cargo test

.github/workflows/mini-tests.yml

@@ -21,6 +21,8 @@ jobs:
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: GITHUB_CI=true RUST_BACKTRACE=1 cargo test --all-features -p mini-serai

.github/workflows/monero-tests.yaml

@@ -24,6 +24,8 @@ jobs:
 
       - name: Test Dependencies
         uses: ./.github/actions/test-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Unit Tests Without Features
         run: GITHUB_CI=true RUST_BACKTRACE=1 cargo test --package monero-serai --lib
@@ -43,6 +45,7 @@ jobs:
       - name: Test Dependencies
         uses: ./.github/actions/test-dependencies
         with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
           monero-version: ${{ matrix.version }}
 
       - name: Run Integration Tests Without Features

.github/workflows/no-std.yml

@@ -27,6 +27,8 @@ jobs:
 
       - name: Install Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ inputs.github-token }}
 
       - name: Install RISC-V Toolchain
         run: sudo apt update && sudo apt install -y gcc-riscv64-unknown-elf gcc-multilib && rustup target add riscv32imac-unknown-none-elf

.github/workflows/pages.yml

@@ -1,90 +0,0 @@
-# MIT License
-#
-# Copyright (c) 2022 just-the-docs
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
-# Sample workflow for building and deploying a Jekyll site to GitHub Pages
-name: Deploy Jekyll site to Pages
-
-on:
-  push:
-    branches:
-      - "develop"
-    paths:
-      - "docs/**"
-
-  # Allows you to run this workflow manually from the Actions tab
-  workflow_dispatch:
-
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-# Allow one concurrent deployment
-concurrency:
-  group: "pages"
-  cancel-in-progress: true
-
-jobs:
-  # Build job
-  build:
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: docs
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - name: Setup Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          bundler-cache: true
-          cache-version: 0
-          working-directory: "${{ github.workspace }}/docs"
-      - name: Setup Pages
-        id: pages
-        uses: actions/configure-pages@v3
-      - name: Build with Jekyll
-        run: bundle exec jekyll build --baseurl "${{ steps.pages.outputs.base_path }}"
-        env:
-          JEKYLL_ENV: production
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
-        with:
-          path: "docs/_site/"
-
-  # Deployment job
-  deploy:
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v2

.github/workflows/processor-tests.yml

@@ -9,8 +9,9 @@ on:
       - "crypto/**"
       - "coins/**"
       - "message-queue/**"
+      - "orchestration/message-queue/**"
       - "processor/**"
-      - "orchestration/**"
+      - "orchestration/processor/**"
       - "tests/docker/**"
       - "tests/processor/**"
 
@@ -20,8 +21,9 @@ on:
       - "crypto/**"
       - "coins/**"
       - "message-queue/**"
+      - "orchestration/message-queue/**"
       - "processor/**"
-      - "orchestration/**"
+      - "orchestration/processor/**"
       - "tests/docker/**"
       - "tests/processor/**"
 
@@ -35,6 +37,8 @@ jobs:
 
       - name: Install Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ inputs.github-token }}
 
       - name: Run processor Docker tests
         run: cd tests/processor && GITHUB_CI=true RUST_BACKTRACE=1 cargo test

.github/workflows/reproducible-runtime.yml

@@ -31,6 +31,8 @@ jobs:
 
       - name: Install Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ inputs.github-token }}
 
       - name: Run Reproducible Runtime tests
         run: cd tests/reproducible-runtime && GITHUB_CI=true RUST_BACKTRACE=1 cargo test

.github/workflows/tests.yml

@@ -33,6 +33,8 @@ jobs:
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: |
@@ -52,6 +54,8 @@ jobs:
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: |
@@ -75,6 +79,8 @@ jobs:
 
       - name: Build Dependencies
         uses: ./.github/actions/build-dependencies
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Run Tests
         run: GITHUB_CI=true RUST_BACKTRACE=1 cargo test --all-features -p serai-client

.gitignore

@@ -1,7 +1,3 @@
 target
-Dockerfile
-Dockerfile.fast-epoch
-!orchestration/runtime/Dockerfile
-.test-logs
-
 .vscode
+.test-logs

Cargo.toml

@@ -1,19 +1,6 @@
 [workspace]
 resolver = "2"
 members = [
-  # Version patches
-  "patches/zstd",
-  "patches/rocksdb",
-  "patches/proc-macro-crate",
-
-  # std patches
-  "patches/matches",
-  "patches/is-terminal",
-
-  # Rewrites/redirects
-  "patches/option-ext",
-  "patches/directories-next",
-
   "common/std-shims",
   "common/zalloc",
   "common/db",
@@ -49,6 +36,12 @@ members = [
   "coordinator/tributary",
   "coordinator",
 
+  "substrate/tree-cleanup/is-terminal",
+  "substrate/tree-cleanup/option-ext",
+  "substrate/tree-cleanup/directories-next",
+  "substrate/tree-cleanup/bandersnatch_vrfs",
+  "substrate/tree-cleanup/w3f-bls",
+
   "substrate/primitives",
 
   "substrate/coins/primitives",
@@ -70,8 +63,6 @@ members = [
 
   "substrate/client",
 
-  "orchestration",
-
   "mini",
 
   "tests/no-std",
@@ -108,28 +99,35 @@ panic = "unwind"
 # https://github.com/rust-lang-nursery/lazy-static.rs/issues/201
 lazy_static = { git = "https://github.com/rust-lang-nursery/lazy-static.rs", rev = "5735630d46572f1e5377c8f2ba0f79d18f53b10c" }
 
-# Needed due to dockertest's usage of `Rc`s when we need `Arc`s
-dockertest = { git = "https://github.com/kayabaNerve/dockertest-rs", branch = "arc" }
-
-# wasmtime pulls in an old version for this
-zstd = { path = "patches/zstd" }
-# Needed for WAL compression
-rocksdb = { path = "patches/rocksdb" }
-# proc-macro-crate 2 binds to an old version of toml for msrv so we patch to 3
-proc-macro-crate = { path = "patches/proc-macro-crate" }
+# subxt *can* pull these off crates.io yet there's no benefit to this
+sp-core-hashing = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "experimental" }
+sp-std = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "experimental" }
 
 # is-terminal now has an std-based solution with an equivalent API
-is-terminal = { path = "patches/is-terminal" }
+is-terminal = { path = "substrate/tree-cleanup/is-terminal" }
 # So does matches
-matches = { path = "patches/matches" }
+matches = { path = "substrate/tree-cleanup/matches" }
 
 # directories-next was created because directories was unmaintained
 # directories-next is now unmaintained while directories is maintained
 # The directories author pulls in ridiculously pointless crates and prefers
 # copyleft licenses
+# Serai's polkadot-sdk consolidated to directories-next, as directories-next is
+# acceptable and because we couldn't consolidate to directories without forking
+# wasmtime
 # The following two patches resolve everything
-option-ext = { path = "patches/option-ext" }
-directories-next = { path = "patches/directories-next" }
+option-ext = { path = "substrate/tree-cleanup/option-ext" }
+directories-next = { path = "substrate/tree-cleanup/directories-next" }
+
+# mach is unmaintained, so this wraps mach2 as mach
+mach = { path = "substrate/tree-cleanup/mach" }
+
+# cargo believes the following are in-tree despite no features activating them
+# We provide empty crates to not only prove they're unused, yet also clean up
+# our Cargo.lock
+w3f-bls = { path = "substrate/tree-cleanup/w3f-bls" }
+[patch."https://github.com/w3f/ring-vrf"]
+bandersnatch_vrfs = { path = "substrate/tree-cleanup/bandersnatch_vrfs" }
 
 [workspace.lints.clippy]
 unwrap_or_default = "allow"

README.md

@@ -5,16 +5,13 @@ Bitcoin, Ethereum, DAI, and Monero, offering a liquidity-pool-based trading
 experience. Funds are stored in an economically secured threshold-multisig
 wallet.
 
-[Getting Started](spec/Getting%20Started.md)
+[Getting Started](docs/Getting%20Started.md)
 
 ### Layout
 
 - `audits`: Audits for various parts of Serai.
 
-- `spec`: The specification of the Serai protocol, both internally and as
-  networked.
-
-- `docs`: User-facing documentation on the Serai protocol.
+- `docs`: Documentation on the Serai protocol.
 
 - `common`: Crates containing utilities common to a variety of areas under
   Serai, none neatly fitting under another category.

coins/bitcoin/tests/runner.rs

@@ -12,7 +12,7 @@ pub fn SEQUENTIAL() -> &'static Mutex<()> {
 
 #[allow(dead_code)]
 pub(crate) async fn rpc() -> Rpc {
-  let rpc = Rpc::new("http://serai:seraidex@127.0.0.1:8332".to_string()).await.unwrap();
+  let rpc = Rpc::new("http://serai:seraidex@127.0.0.1:18443".to_string()).await.unwrap();
 
   // If this node has already been interacted with, clear its chain
   if rpc.get_latest_block_number().await.unwrap() > 0 {

coins/ethereum/.gitignore

@@ -1,7 +1,3 @@
-# Solidity build outputs
+# solidity build outputs
 cache
 artifacts
-
-# Auto-generated ABI files
-src/abi/schnorr.rs
-src/abi/router.rs

coins/ethereum/Cargo.toml

@@ -30,9 +30,6 @@ ethers-core = { version = "2", default-features = false }
 ethers-providers = { version = "2", default-features = false }
 ethers-contract = { version = "2", default-features = false, features = ["abigen", "providers"] }
 
-[build-dependencies]
-ethers-contract = { version = "2", default-features = false, features = ["abigen", "providers"] }
-
 [dev-dependencies]
 rand_core = { version = "0.6", default-features = false, features = ["std"] }
 

coins/ethereum/build.rs

@@ -1,20 +1,6 @@
-use std::process::Command;
-
-use ethers_contract::Abigen;
-
 fn main() {
-  println!("cargo:rerun-if-changed=contracts/*");
-  println!("cargo:rerun-if-changed=artifacts/*");
-
-  for line in String::from_utf8(Command::new("solc").args(["--version"]).output().unwrap().stdout)
-    .unwrap()
-    .lines()
-  {
-    if let Some(version) = line.strip_prefix("Version: ") {
-      let version = version.split('+').next().unwrap();
-      assert_eq!(version, "0.8.25");
-    }
-  }
+  println!("cargo:rerun-if-changed=contracts");
+  println!("cargo:rerun-if-changed=artifacts");
 
   #[rustfmt::skip]
   let args = [
@@ -22,21 +8,8 @@ fn main() {
     "-o", "./artifacts", "--overwrite",
     "--bin", "--abi",
     "--optimize",
-    "./contracts/Schnorr.sol", "./contracts/Router.sol",
+    "./contracts/Schnorr.sol"
   ];
-  assert!(Command::new("solc").args(args).status().unwrap().success());
 
-  Abigen::new("Schnorr", "./artifacts/Schnorr.abi")
-    .unwrap()
-    .generate()
-    .unwrap()
-    .write_to_file("./src/abi/schnorr.rs")
-    .unwrap();
-
-  Abigen::new("Router", "./artifacts/Router.abi")
-    .unwrap()
-    .generate()
-    .unwrap()
-    .write_to_file("./src/abi/router.rs")
-    .unwrap();
+  assert!(std::process::Command::new("solc").args(args).status().unwrap().success());
 }

coins/ethereum/contracts/Router.sol

@@ -1,90 +0,0 @@
-// SPDX-License-Identifier: AGPLv3
-pragma solidity ^0.8.0;
-
-import "./Schnorr.sol";
-
-contract Router is Schnorr {
-  // Contract initializer
-  // TODO: Replace with a MuSig of the genesis validators
-  address public initializer;
-
-  // Nonce is incremented for each batch of transactions executed
-  uint256 public nonce;
-
-  // fixed parity for the public keys used in this contract
-  uint8 constant public KEY_PARITY = 27;
-
-  // current public key's x-coordinate
-  // note: this key must always use the fixed parity defined above
-  bytes32 public seraiKey;
-
-  struct OutInstruction {
-    address to;
-    uint256 value;
-    bytes data;
-  }
-
-  struct Signature {
-    bytes32 c;
-    bytes32 s;
-  }
-
-  // success is a uint256 representing a bitfield of transaction successes
-  event Executed(uint256 nonce, bytes32 batch, uint256 success);
-
-  // error types
-  error NotInitializer();
-  error AlreadyInitialized();
-  error InvalidKey();
-  error TooManyTransactions();
-
-  constructor() {
-    initializer = msg.sender;
-  }
-
-  // initSeraiKey can be called by the contract initializer to set the first
-  // public key, only if the public key has yet to be set.
-  function initSeraiKey(bytes32 _seraiKey) external {
-    if (msg.sender != initializer) revert NotInitializer();
-    if (seraiKey != 0) revert AlreadyInitialized();
-    if (_seraiKey == bytes32(0)) revert InvalidKey();
-    seraiKey = _seraiKey;
-  }
-
-  // updateSeraiKey validates the given Schnorr signature against the current public key,
-  // and if successful, updates the contract's public key to the given one.
-  function updateSeraiKey(
-    bytes32 _seraiKey,
-    Signature memory sig
-  ) public {
-    if (_seraiKey == bytes32(0)) revert InvalidKey();
-    bytes32 message = keccak256(abi.encodePacked("updateSeraiKey", _seraiKey));
-    if (!verify(KEY_PARITY, seraiKey, message, sig.c, sig.s)) revert InvalidSignature();
-    seraiKey = _seraiKey;
-  }
-
-  // execute accepts a list of transactions to execute as well as a Schnorr signature.
-  // if signature verification passes, the given transactions are executed.
-  // if signature verification fails, this function will revert.
-  function execute(
-    OutInstruction[] calldata transactions,
-    Signature memory sig
-  ) public {
-    if (transactions.length > 256) revert TooManyTransactions();
-
-    bytes32 message = keccak256(abi.encode("execute", nonce, transactions));
-    // This prevents re-entrancy from causing double spends yet does allow
-    // out-of-order execution via re-entrancy
-    nonce++;
-    if (!verify(KEY_PARITY, seraiKey, message, sig.c, sig.s)) revert InvalidSignature();
-
-    uint256 successes;
-    for(uint256 i = 0; i < transactions.length; i++) {
-      (bool success, ) = transactions[i].to.call{value: transactions[i].value, gas: 200_000}(transactions[i].data);
-      assembly {
-        successes := or(successes, shl(i, success))
-      }
-    }
-    emit Executed(nonce, message, successes);
-  }
-}

coins/ethereum/contracts/Schnorr.sol

@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: AGPLv3
+//SPDX-License-Identifier: AGPLv3
 pragma solidity ^0.8.0;
 
 // see https://github.com/noot/schnorr-verify for implementation details
@@ -7,32 +7,29 @@ contract Schnorr {
   uint256 constant public Q =
     0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141;
 
-  error InvalidSOrA();
-  error InvalidSignature();
-
   // parity := public key y-coord parity (27 or 28)
   // px := public key x-coord
-  // message := 32-byte hash of the message
-  // c := schnorr signature challenge
+  // message := 32-byte message
   // s := schnorr signature
+  // e := schnorr signature challenge
   function verify(
     uint8 parity,
     bytes32 px,
     bytes32 message,
-    bytes32 c,
-    bytes32 s
+    bytes32 s,
+    bytes32 e
   ) public view returns (bool) {
     // ecrecover = (m, v, r, s);
-    bytes32 sa = bytes32(Q - mulmod(uint256(s), uint256(px), Q));
-    bytes32 ca = bytes32(Q - mulmod(uint256(c), uint256(px), Q));
+    bytes32 sp = bytes32(Q - mulmod(uint256(s), uint256(px), Q));
+    bytes32 ep = bytes32(Q - mulmod(uint256(e), uint256(px), Q));
 
-    if (sa == 0) revert InvalidSOrA();
+    require(sp != 0);
     // the ecrecover precompile implementation checks that the `r` and `s`
-    // inputs are non-zero (in this case, `px` and `ca`), thus we don't need to
-    // check if they're zero.
-    address R = ecrecover(sa, parity, px, ca);
-    if (R == address(0)) revert InvalidSignature();
-    return c == keccak256(
+    // inputs are non-zero (in this case, `px` and `ep`), thus we don't need to
+    // check if they're zero.will make me 
+    address R = ecrecover(sp, parity, px, ep);
+    require(R != address(0), "ecrecover failed");
+    return e == keccak256(
       abi.encodePacked(R, uint8(parity), px, block.chainid, message)
     );
   }

coins/ethereum/src/abi/mod.rs

@@ -1,6 +0,0 @@
-#[rustfmt::skip]
-#[allow(clippy::all)]
-pub(crate) mod schnorr;
-#[rustfmt::skip]
-#[allow(clippy::all)]
-pub(crate) mod router;

coins/ethereum/src/contract.rs

@@ -0,0 +1,36 @@
+use thiserror::Error;
+use eyre::{eyre, Result};
+
+use ethers_providers::{Provider, Http};
+use ethers_contract::abigen;
+
+use crate::crypto::ProcessedSignature;
+
+#[derive(Error, Debug)]
+pub enum EthereumError {
+  #[error("failed to verify Schnorr signature")]
+  VerificationError,
+}
+
+abigen!(Schnorr, "./artifacts/Schnorr.abi");
+
+pub async fn call_verify(
+  contract: &Schnorr<Provider<Http>>,
+  params: &ProcessedSignature,
+) -> Result<()> {
+  if contract
+    .verify(
+      params.parity + 27,
+      params.px.to_bytes().into(),
+      params.message,
+      params.s.to_bytes().into(),
+      params.e.to_bytes().into(),
+    )
+    .call()
+    .await?
+  {
+    Ok(())
+  } else {
+    Err(eyre!(EthereumError::VerificationError))
+  }
+}

coins/ethereum/src/crypto.rs

@@ -1,54 +1,50 @@
 use sha3::{Digest, Keccak256};
 
-use group::ff::PrimeField;
+use group::Group;
 use k256::{
   elliptic_curve::{
-    bigint::ArrayEncoding, ops::Reduce, point::AffineCoordinates, sec1::ToEncodedPoint,
+    bigint::ArrayEncoding, ops::Reduce, point::DecompressPoint, sec1::ToEncodedPoint,
   },
-  ProjectivePoint, Scalar, U256,
+  AffinePoint, ProjectivePoint, Scalar, U256,
 };
 
-use frost::{
-  algorithm::{Hram, SchnorrSignature},
-  curve::Secp256k1,
-};
+use frost::{algorithm::Hram, curve::Secp256k1};
 
-pub(crate) fn keccak256(data: &[u8]) -> [u8; 32] {
+pub fn keccak256(data: &[u8]) -> [u8; 32] {
   Keccak256::digest(data).into()
 }
 
-pub(crate) fn address(point: &ProjectivePoint) -> [u8; 20] {
+pub fn hash_to_scalar(data: &[u8]) -> Scalar {
+  Scalar::reduce(U256::from_be_slice(&keccak256(data)))
+}
+
+pub fn address(point: &ProjectivePoint) -> [u8; 20] {
   let encoded_point = point.to_encoded_point(false);
-  // Last 20 bytes of the hash of the concatenated x and y coordinates
-  // We obtain the concatenated x and y coordinates via the uncompressed encoding of the point
-  keccak256(&encoded_point.as_ref()[1 .. 65])[12 ..].try_into().unwrap()
+  keccak256(&encoded_point.as_ref()[1 .. 65])[12 .. 32].try_into().unwrap()
 }
 
-#[allow(non_snake_case)]
-pub struct PublicKey {
-  pub A: ProjectivePoint,
-  pub px: Scalar,
-  pub parity: u8,
-}
+pub fn ecrecover(message: Scalar, v: u8, r: Scalar, s: Scalar) -> Option<[u8; 20]> {
+  if r.is_zero().into() || s.is_zero().into() {
+    return None;
+  }
 
-impl PublicKey {
   #[allow(non_snake_case)]
-  pub fn new(A: ProjectivePoint) -> Option<PublicKey> {
-    let affine = A.to_affine();
-    let parity = u8::from(bool::from(affine.y_is_odd())) + 27;
-    if parity != 27 {
-      None?;
+  let R = AffinePoint::decompress(&r.to_bytes(), v.into());
+  #[allow(non_snake_case)]
+  if let Some(R) = Option::<AffinePoint>::from(R) {
+    #[allow(non_snake_case)]
+    let R = ProjectivePoint::from(R);
+
+    let r = r.invert().unwrap();
+    let u1 = ProjectivePoint::GENERATOR * (-message * r);
+    let u2 = R * (s * r);
+    let key: ProjectivePoint = u1 + u2;
+    if !bool::from(key.is_identity()) {
+      return Some(address(&key));
+    }
   }
 
-    let x_coord = affine.x();
-    let x_coord_scalar = <Scalar as Reduce<U256>>::reduce_bytes(&x_coord);
-    // Return None if a reduction would occur
-    if x_coord_scalar.to_repr() != x_coord {
-      None?;
-    }
-
-    Some(PublicKey { A, px: x_coord_scalar, parity })
-  }
+  None
 }
 
 #[derive(Clone, Default)]
@@ -59,33 +55,53 @@ impl Hram<Secp256k1> for EthereumHram {
     let a_encoded_point = A.to_encoded_point(true);
     let mut a_encoded = a_encoded_point.as_ref().to_owned();
     a_encoded[0] += 25; // Ethereum uses 27/28 for point parity
-    assert!((a_encoded[0] == 27) || (a_encoded[0] == 28));
     let mut data = address(R).to_vec();
     data.append(&mut a_encoded);
-    data.extend(m);
+    data.append(&mut m.to_vec());
     Scalar::reduce(U256::from_be_slice(&keccak256(&data)))
   }
 }
 
-pub struct Signature {
-  pub(crate) c: Scalar,
-  pub(crate) s: Scalar,
+pub struct ProcessedSignature {
+  pub s: Scalar,
+  pub px: Scalar,
+  pub parity: u8,
+  pub message: [u8; 32],
+  pub e: Scalar,
 }
-impl Signature {
-  pub fn new(
-    public_key: &PublicKey,
+
+#[allow(non_snake_case)]
+pub fn preprocess_signature_for_ecrecover(
+  m: [u8; 32],
+  R: &ProjectivePoint,
+  s: Scalar,
+  A: &ProjectivePoint,
   chain_id: U256,
-    m: &[u8],
-    signature: SchnorrSignature<Secp256k1>,
-  ) -> Option<Signature> {
-    let c = EthereumHram::hram(
-      &signature.R,
-      &public_key.A,
-      &[chain_id.to_be_byte_array().as_slice(), &keccak256(m)].concat(),
-    );
-    if !signature.verify(public_key.A, c) {
-      None?;
-    }
-    Some(Signature { c, s: signature.s })
+) -> (Scalar, Scalar) {
+  let processed_sig = process_signature_for_contract(m, R, s, A, chain_id);
+  let sr = processed_sig.s.mul(&processed_sig.px).negate();
+  let er = processed_sig.e.mul(&processed_sig.px).negate();
+  (sr, er)
+}
+
+#[allow(non_snake_case)]
+pub fn process_signature_for_contract(
+  m: [u8; 32],
+  R: &ProjectivePoint,
+  s: Scalar,
+  A: &ProjectivePoint,
+  chain_id: U256,
+) -> ProcessedSignature {
+  let encoded_pk = A.to_encoded_point(true);
+  let px = &encoded_pk.as_ref()[1 .. 33];
+  let px_scalar = Scalar::reduce(U256::from_be_slice(px));
+  let e = EthereumHram::hram(R, A, &[chain_id.to_be_byte_array().as_slice(), &m].concat());
+  ProcessedSignature {
+    s,
+    px: px_scalar,
+    parity: &encoded_pk.as_ref()[0] - 2,
+    #[allow(non_snake_case)]
+    message: m,
+    e,
   }
 }

coins/ethereum/src/lib.rs

@@ -1,16 +1,2 @@
-use thiserror::Error;
-
+pub mod contract;
 pub mod crypto;
-
-pub(crate) mod abi;
-pub mod schnorr;
-pub mod router;
-
-#[cfg(test)]
-mod tests;
-
-#[derive(Error, Debug)]
-pub enum Error {
-  #[error("failed to verify Schnorr signature")]
-  InvalidSignature,
-}

coins/ethereum/src/router.rs

@@ -1,30 +0,0 @@
-pub use crate::abi::router::*;
-
-/*
-use crate::crypto::{ProcessedSignature, PublicKey};
-use ethers::{contract::ContractFactory, prelude::*, solc::artifacts::contract::ContractBytecode};
-use eyre::Result;
-use std::{convert::From, fs::File, sync::Arc};
-
-pub async fn router_update_public_key<M: Middleware + 'static>(
-  contract: &Router<M>,
-  public_key: &PublicKey,
-  signature: &ProcessedSignature,
-) -> std::result::Result<Option<TransactionReceipt>, eyre::ErrReport> {
-  let tx = contract.update_public_key(public_key.px.to_bytes().into(), signature.into());
-  let pending_tx = tx.send().await?;
-  let receipt = pending_tx.await?;
-  Ok(receipt)
-}
-
-pub async fn router_execute<M: Middleware + 'static>(
-  contract: &Router<M>,
-  txs: Vec<Rtransaction>,
-  signature: &ProcessedSignature,
-) -> std::result::Result<Option<TransactionReceipt>, eyre::ErrReport> {
-  let tx = contract.execute(txs, signature.into()).send();
-  let pending_tx = tx.send().await?;
-  let receipt = pending_tx.await?;
-  Ok(receipt)
-}
-*/

coins/ethereum/src/schnorr.rs

@@ -1,34 +0,0 @@
-use eyre::{eyre, Result};
-
-use group::ff::PrimeField;
-
-use ethers_providers::{Provider, Http};
-
-use crate::{
-  Error,
-  crypto::{keccak256, PublicKey, Signature},
-};
-pub use crate::abi::schnorr::*;
-
-pub async fn call_verify(
-  contract: &Schnorr<Provider<Http>>,
-  public_key: &PublicKey,
-  message: &[u8],
-  signature: &Signature,
-) -> Result<()> {
-  if contract
-    .verify(
-      public_key.parity,
-      public_key.px.to_repr().into(),
-      keccak256(message),
-      signature.c.to_repr().into(),
-      signature.s.to_repr().into(),
-    )
-    .call()
-    .await?
-  {
-    Ok(())
-  } else {
-    Err(eyre!(Error::InvalidSignature))
-  }
-}

coins/ethereum/src/tests/crypto.rs

@@ -1,132 +0,0 @@
-use rand_core::OsRng;
-
-use sha2::Sha256;
-use sha3::{Digest, Keccak256};
-
-use group::Group;
-use k256::{
-  ecdsa::{hazmat::SignPrimitive, signature::DigestVerifier, SigningKey, VerifyingKey},
-  elliptic_curve::{bigint::ArrayEncoding, ops::Reduce, point::DecompressPoint},
-  U256, Scalar, AffinePoint, ProjectivePoint,
-};
-
-use frost::{
-  curve::Secp256k1,
-  algorithm::{Hram, IetfSchnorr},
-  tests::{algorithm_machines, sign},
-};
-
-use crate::{crypto::*, tests::key_gen};
-
-pub fn hash_to_scalar(data: &[u8]) -> Scalar {
-  Scalar::reduce(U256::from_be_slice(&keccak256(data)))
-}
-
-pub(crate) fn ecrecover(message: Scalar, v: u8, r: Scalar, s: Scalar) -> Option<[u8; 20]> {
-  if r.is_zero().into() || s.is_zero().into() || !((v == 27) || (v == 28)) {
-    return None;
-  }
-
-  #[allow(non_snake_case)]
-  let R = AffinePoint::decompress(&r.to_bytes(), (v - 27).into());
-  #[allow(non_snake_case)]
-  if let Some(R) = Option::<AffinePoint>::from(R) {
-    #[allow(non_snake_case)]
-    let R = ProjectivePoint::from(R);
-
-    let r = r.invert().unwrap();
-    let u1 = ProjectivePoint::GENERATOR * (-message * r);
-    let u2 = R * (s * r);
-    let key: ProjectivePoint = u1 + u2;
-    if !bool::from(key.is_identity()) {
-      return Some(address(&key));
-    }
-  }
-
-  None
-}
-
-#[test]
-fn test_ecrecover() {
-  let private = SigningKey::random(&mut OsRng);
-  let public = VerifyingKey::from(&private);
-
-  // Sign the signature
-  const MESSAGE: &[u8] = b"Hello, World!";
-  let (sig, recovery_id) = private
-    .as_nonzero_scalar()
-    .try_sign_prehashed_rfc6979::<Sha256>(&Keccak256::digest(MESSAGE), b"")
-    .unwrap();
-
-  // Sanity check the signature verifies
-  #[allow(clippy::unit_cmp)] // Intended to assert this wasn't changed to Result<bool>
-  {
-    assert_eq!(public.verify_digest(Keccak256::new_with_prefix(MESSAGE), &sig).unwrap(), ());
-  }
-
-  // Perform the ecrecover
-  assert_eq!(
-    ecrecover(
-      hash_to_scalar(MESSAGE),
-      u8::from(recovery_id.unwrap().is_y_odd()) + 27,
-      *sig.r(),
-      *sig.s()
-    )
-    .unwrap(),
-    address(&ProjectivePoint::from(public.as_affine()))
-  );
-}
-
-// Run the sign test with the EthereumHram
-#[test]
-fn test_signing() {
-  let (keys, _) = key_gen();
-
-  const MESSAGE: &[u8] = b"Hello, World!";
-
-  let algo = IetfSchnorr::<Secp256k1, EthereumHram>::ietf();
-  let _sig =
-    sign(&mut OsRng, &algo, keys.clone(), algorithm_machines(&mut OsRng, &algo, &keys), MESSAGE);
-}
-
-#[allow(non_snake_case)]
-pub fn preprocess_signature_for_ecrecover(
-  R: ProjectivePoint,
-  public_key: &PublicKey,
-  chain_id: U256,
-  m: &[u8],
-  s: Scalar,
-) -> (u8, Scalar, Scalar) {
-  let c = EthereumHram::hram(
-    &R,
-    &public_key.A,
-    &[chain_id.to_be_byte_array().as_slice(), &keccak256(m)].concat(),
-  );
-  let sa = -(s * public_key.px);
-  let ca = -(c * public_key.px);
-  (public_key.parity, sa, ca)
-}
-
-#[test]
-fn test_ecrecover_hack() {
-  let (keys, public_key) = key_gen();
-
-  const MESSAGE: &[u8] = b"Hello, World!";
-  let hashed_message = keccak256(MESSAGE);
-  let chain_id = U256::ONE;
-  let full_message = &[chain_id.to_be_byte_array().as_slice(), &hashed_message].concat();
-
-  let algo = IetfSchnorr::<Secp256k1, EthereumHram>::ietf();
-  let sig = sign(
-    &mut OsRng,
-    &algo,
-    keys.clone(),
-    algorithm_machines(&mut OsRng, &algo, &keys),
-    full_message,
-  );
-
-  let (parity, sa, ca) =
-    preprocess_signature_for_ecrecover(sig.R, &public_key, chain_id, MESSAGE, sig.s);
-  let q = ecrecover(sa, parity, public_key.px, ca).unwrap();
-  assert_eq!(q, address(&sig.R));
-}

coins/ethereum/src/tests/mod.rs

@@ -1,92 +0,0 @@
-use std::{sync::Arc, time::Duration, fs::File, collections::HashMap};
-
-use rand_core::OsRng;
-
-use group::ff::PrimeField;
-use k256::{Scalar, ProjectivePoint};
-use frost::{curve::Secp256k1, Participant, ThresholdKeys, tests::key_gen as frost_key_gen};
-
-use ethers_core::{
-  types::{H160, Signature as EthersSignature},
-  abi::Abi,
-};
-use ethers_contract::ContractFactory;
-use ethers_providers::{Middleware, Provider, Http};
-
-use crate::crypto::PublicKey;
-
-mod crypto;
-mod schnorr;
-mod router;
-
-pub fn key_gen() -> (HashMap<Participant, ThresholdKeys<Secp256k1>>, PublicKey) {
-  let mut keys = frost_key_gen::<_, Secp256k1>(&mut OsRng);
-  let mut group_key = keys[&Participant::new(1).unwrap()].group_key();
-
-  let mut offset = Scalar::ZERO;
-  while PublicKey::new(group_key).is_none() {
-    offset += Scalar::ONE;
-    group_key += ProjectivePoint::GENERATOR;
-  }
-  for keys in keys.values_mut() {
-    *keys = keys.offset(offset);
-  }
-  let public_key = PublicKey::new(group_key).unwrap();
-
-  (keys, public_key)
-}
-
-// TODO: Replace with a contract deployment from an unknown account, so the environment solely has
-// to fund the deployer, not create/pass a wallet
-// TODO: Deterministic deployments across chains
-pub async fn deploy_contract(
-  chain_id: u32,
-  client: Arc<Provider<Http>>,
-  wallet: &k256::ecdsa::SigningKey,
-  name: &str,
-) -> eyre::Result<H160> {
-  let abi: Abi =
-    serde_json::from_reader(File::open(format!("./artifacts/{name}.abi")).unwrap()).unwrap();
-
-  let hex_bin_buf = std::fs::read_to_string(format!("./artifacts/{name}.bin")).unwrap();
-  let hex_bin =
-    if let Some(stripped) = hex_bin_buf.strip_prefix("0x") { stripped } else { &hex_bin_buf };
-  let bin = hex::decode(hex_bin).unwrap();
-  let factory = ContractFactory::new(abi, bin.into(), client.clone());
-
-  let mut deployment_tx = factory.deploy(())?.tx;
-  deployment_tx.set_chain_id(chain_id);
-  deployment_tx.set_gas(1_000_000);
-  let (max_fee_per_gas, max_priority_fee_per_gas) = client.estimate_eip1559_fees(None).await?;
-  deployment_tx.as_eip1559_mut().unwrap().max_fee_per_gas = Some(max_fee_per_gas);
-  deployment_tx.as_eip1559_mut().unwrap().max_priority_fee_per_gas = Some(max_priority_fee_per_gas);
-
-  let sig_hash = deployment_tx.sighash();
-  let (sig, rid) = wallet.sign_prehash_recoverable(sig_hash.as_ref()).unwrap();
-
-  // EIP-155 v
-  let mut v = u64::from(rid.to_byte());
-  assert!((v == 0) || (v == 1));
-  v += u64::from((chain_id * 2) + 35);
-
-  let r = sig.r().to_repr();
-  let r_ref: &[u8] = r.as_ref();
-  let s = sig.s().to_repr();
-  let s_ref: &[u8] = s.as_ref();
-  let deployment_tx =
-    deployment_tx.rlp_signed(&EthersSignature { r: r_ref.into(), s: s_ref.into(), v });
-
-  let pending_tx = client.send_raw_transaction(deployment_tx).await?;
-
-  let mut receipt;
-  while {
-    receipt = client.get_transaction_receipt(pending_tx.tx_hash()).await?;
-    receipt.is_none()
-  } {
-    tokio::time::sleep(Duration::from_secs(6)).await;
-  }
-  let receipt = receipt.unwrap();
-  assert!(receipt.status == Some(1.into()));
-
-  Ok(receipt.contract_address.unwrap())
-}

coins/ethereum/src/tests/router.rs

@@ -1,109 +0,0 @@
-use std::{convert::TryFrom, sync::Arc, collections::HashMap};
-
-use rand_core::OsRng;
-
-use group::ff::PrimeField;
-use frost::{
-  curve::Secp256k1,
-  Participant, ThresholdKeys,
-  algorithm::IetfSchnorr,
-  tests::{algorithm_machines, sign},
-};
-
-use ethers_core::{
-  types::{H160, U256, Bytes},
-  abi::AbiEncode,
-  utils::{Anvil, AnvilInstance},
-};
-use ethers_providers::{Middleware, Provider, Http};
-
-use crate::{
-  crypto::{keccak256, PublicKey, EthereumHram, Signature},
-  router::{self, *},
-  tests::{key_gen, deploy_contract},
-};
-
-async fn setup_test() -> (
-  u32,
-  AnvilInstance,
-  Router<Provider<Http>>,
-  HashMap<Participant, ThresholdKeys<Secp256k1>>,
-  PublicKey,
-) {
-  let anvil = Anvil::new().spawn();
-
-  let provider = Provider::<Http>::try_from(anvil.endpoint()).unwrap();
-  let chain_id = provider.get_chainid().await.unwrap().as_u32();
-  let wallet = anvil.keys()[0].clone().into();
-  let client = Arc::new(provider);
-
-  let contract_address =
-    deploy_contract(chain_id, client.clone(), &wallet, "Router").await.unwrap();
-  let contract = Router::new(contract_address, client.clone());
-
-  let (keys, public_key) = key_gen();
-
-  // Set the key to the threshold keys
-  let tx = contract.init_serai_key(public_key.px.to_repr().into()).gas(100_000);
-  let pending_tx = tx.send().await.unwrap();
-  let receipt = pending_tx.await.unwrap().unwrap();
-  assert!(receipt.status == Some(1.into()));
-
-  (chain_id, anvil, contract, keys, public_key)
-}
-
-#[tokio::test]
-async fn test_deploy_contract() {
-  setup_test().await;
-}
-
-pub fn hash_and_sign(
-  keys: &HashMap<Participant, ThresholdKeys<Secp256k1>>,
-  public_key: &PublicKey,
-  chain_id: U256,
-  message: &[u8],
-) -> Signature {
-  let hashed_message = keccak256(message);
-
-  let mut chain_id_bytes = [0; 32];
-  chain_id.to_big_endian(&mut chain_id_bytes);
-  let full_message = &[chain_id_bytes.as_slice(), &hashed_message].concat();
-
-  let algo = IetfSchnorr::<Secp256k1, EthereumHram>::ietf();
-  let sig = sign(
-    &mut OsRng,
-    &algo,
-    keys.clone(),
-    algorithm_machines(&mut OsRng, &algo, keys),
-    full_message,
-  );
-
-  Signature::new(public_key, k256::U256::from_words(chain_id.0), message, sig).unwrap()
-}
-
-#[tokio::test]
-async fn test_router_execute() {
-  let (chain_id, _anvil, contract, keys, public_key) = setup_test().await;
-
-  let to = H160([0u8; 20]);
-  let value = U256([0u64; 4]);
-  let data = Bytes::from([0]);
-  let tx = OutInstruction { to, value, data: data.clone() };
-
-  let nonce_call = contract.nonce();
-  let nonce = nonce_call.call().await.unwrap();
-
-  let encoded =
-    ("execute".to_string(), nonce, vec![router::OutInstruction { to, value, data }]).encode();
-  let sig = hash_and_sign(&keys, &public_key, chain_id.into(), &encoded);
-
-  let tx = contract
-    .execute(vec![tx], router::Signature { c: sig.c.to_repr().into(), s: sig.s.to_repr().into() })
-    .gas(300_000);
-  let pending_tx = tx.send().await.unwrap();
-  let receipt = dbg!(pending_tx.await.unwrap().unwrap());
-  assert!(receipt.status == Some(1.into()));
-
-  println!("gas used: {:?}", receipt.cumulative_gas_used);
-  println!("logs: {:?}", receipt.logs);
-}

coins/ethereum/src/tests/schnorr.rs

@@ -1,67 +0,0 @@
-use std::{convert::TryFrom, sync::Arc};
-
-use rand_core::OsRng;
-
-use ::k256::{elliptic_curve::bigint::ArrayEncoding, U256, Scalar};
-
-use ethers_core::utils::{keccak256, Anvil, AnvilInstance};
-use ethers_providers::{Middleware, Provider, Http};
-
-use frost::{
-  curve::Secp256k1,
-  algorithm::IetfSchnorr,
-  tests::{algorithm_machines, sign},
-};
-
-use crate::{
-  crypto::*,
-  schnorr::*,
-  tests::{key_gen, deploy_contract},
-};
-
-async fn setup_test() -> (u32, AnvilInstance, Schnorr<Provider<Http>>) {
-  let anvil = Anvil::new().spawn();
-
-  let provider = Provider::<Http>::try_from(anvil.endpoint()).unwrap();
-  let chain_id = provider.get_chainid().await.unwrap().as_u32();
-  let wallet = anvil.keys()[0].clone().into();
-  let client = Arc::new(provider);
-
-  let contract_address =
-    deploy_contract(chain_id, client.clone(), &wallet, "Schnorr").await.unwrap();
-  let contract = Schnorr::new(contract_address, client.clone());
-  (chain_id, anvil, contract)
-}
-
-#[tokio::test]
-async fn test_deploy_contract() {
-  setup_test().await;
-}
-
-#[tokio::test]
-async fn test_ecrecover_hack() {
-  let (chain_id, _anvil, contract) = setup_test().await;
-  let chain_id = U256::from(chain_id);
-
-  let (keys, public_key) = key_gen();
-
-  const MESSAGE: &[u8] = b"Hello, World!";
-  let hashed_message = keccak256(MESSAGE);
-  let full_message = &[chain_id.to_be_byte_array().as_slice(), &hashed_message].concat();
-
-  let algo = IetfSchnorr::<Secp256k1, EthereumHram>::ietf();
-  let sig = sign(
-    &mut OsRng,
-    &algo,
-    keys.clone(),
-    algorithm_machines(&mut OsRng, &algo, &keys),
-    full_message,
-  );
-  let sig = Signature::new(&public_key, chain_id, MESSAGE, sig).unwrap();
-
-  call_verify(&contract, &public_key, MESSAGE, &sig).await.unwrap();
-  // Test an invalid signature fails
-  let mut sig = sig;
-  sig.s += Scalar::ONE;
-  assert!(call_verify(&contract, &public_key, MESSAGE, &sig).await.is_err());
-}

coins/ethereum/tests/contract.rs

@@ -0,0 +1,128 @@
+use std::{convert::TryFrom, sync::Arc, time::Duration, fs::File};
+
+use rand_core::OsRng;
+
+use ::k256::{
+  elliptic_curve::{bigint::ArrayEncoding, PrimeField},
+  U256,
+};
+
+use ethers_core::{
+  types::Signature,
+  abi::Abi,
+  utils::{keccak256, Anvil, AnvilInstance},
+};
+use ethers_contract::ContractFactory;
+use ethers_providers::{Middleware, Provider, Http};
+
+use frost::{
+  curve::Secp256k1,
+  Participant,
+  algorithm::IetfSchnorr,
+  tests::{key_gen, algorithm_machines, sign},
+};
+
+use ethereum_serai::{
+  crypto,
+  contract::{Schnorr, call_verify},
+};
+
+// TODO: Replace with a contract deployment from an unknown account, so the environment solely has
+// to fund the deployer, not create/pass a wallet
+pub async fn deploy_schnorr_verifier_contract(
+  chain_id: u32,
+  client: Arc<Provider<Http>>,
+  wallet: &k256::ecdsa::SigningKey,
+) -> eyre::Result<Schnorr<Provider<Http>>> {
+  let abi: Abi = serde_json::from_reader(File::open("./artifacts/Schnorr.abi").unwrap()).unwrap();
+
+  let hex_bin_buf = std::fs::read_to_string("./artifacts/Schnorr.bin").unwrap();
+  let hex_bin =
+    if let Some(stripped) = hex_bin_buf.strip_prefix("0x") { stripped } else { &hex_bin_buf };
+  let bin = hex::decode(hex_bin).unwrap();
+  let factory = ContractFactory::new(abi, bin.into(), client.clone());
+
+  let mut deployment_tx = factory.deploy(())?.tx;
+  deployment_tx.set_chain_id(chain_id);
+  deployment_tx.set_gas(500_000);
+  let (max_fee_per_gas, max_priority_fee_per_gas) = client.estimate_eip1559_fees(None).await?;
+  deployment_tx.as_eip1559_mut().unwrap().max_fee_per_gas = Some(max_fee_per_gas);
+  deployment_tx.as_eip1559_mut().unwrap().max_priority_fee_per_gas = Some(max_priority_fee_per_gas);
+
+  let sig_hash = deployment_tx.sighash();
+  let (sig, rid) = wallet.sign_prehash_recoverable(sig_hash.as_ref()).unwrap();
+
+  // EIP-155 v
+  let mut v = u64::from(rid.to_byte());
+  assert!((v == 0) || (v == 1));
+  v += u64::from((chain_id * 2) + 35);
+
+  let r = sig.r().to_repr();
+  let r_ref: &[u8] = r.as_ref();
+  let s = sig.s().to_repr();
+  let s_ref: &[u8] = s.as_ref();
+  let deployment_tx = deployment_tx.rlp_signed(&Signature { r: r_ref.into(), s: s_ref.into(), v });
+
+  let pending_tx = client.send_raw_transaction(deployment_tx).await?;
+
+  let mut receipt;
+  while {
+    receipt = client.get_transaction_receipt(pending_tx.tx_hash()).await?;
+    receipt.is_none()
+  } {
+    tokio::time::sleep(Duration::from_secs(6)).await;
+  }
+  let receipt = receipt.unwrap();
+  assert!(receipt.status == Some(1.into()));
+
+  let contract = Schnorr::new(receipt.contract_address.unwrap(), client.clone());
+  Ok(contract)
+}
+
+async fn deploy_test_contract() -> (u32, AnvilInstance, Schnorr<Provider<Http>>) {
+  let anvil = Anvil::new().spawn();
+
+  let provider =
+    Provider::<Http>::try_from(anvil.endpoint()).unwrap().interval(Duration::from_millis(10u64));
+  let chain_id = provider.get_chainid().await.unwrap().as_u32();
+  let wallet = anvil.keys()[0].clone().into();
+  let client = Arc::new(provider);
+
+  (chain_id, anvil, deploy_schnorr_verifier_contract(chain_id, client, &wallet).await.unwrap())
+}
+
+#[tokio::test]
+async fn test_deploy_contract() {
+  deploy_test_contract().await;
+}
+
+#[tokio::test]
+async fn test_ecrecover_hack() {
+  let (chain_id, _anvil, contract) = deploy_test_contract().await;
+  let chain_id = U256::from(chain_id);
+
+  let keys = key_gen::<_, Secp256k1>(&mut OsRng);
+  let group_key = keys[&Participant::new(1).unwrap()].group_key();
+
+  const MESSAGE: &[u8] = b"Hello, World!";
+  let hashed_message = keccak256(MESSAGE);
+
+  let full_message = &[chain_id.to_be_byte_array().as_slice(), &hashed_message].concat();
+
+  let algo = IetfSchnorr::<Secp256k1, crypto::EthereumHram>::ietf();
+  let sig = sign(
+    &mut OsRng,
+    &algo,
+    keys.clone(),
+    algorithm_machines(&mut OsRng, &algo, &keys),
+    full_message,
+  );
+  let mut processed_sig =
+    crypto::process_signature_for_contract(hashed_message, &sig.R, sig.s, &group_key, chain_id);
+
+  call_verify(&contract, &processed_sig).await.unwrap();
+
+  // test invalid signature fails
+  processed_sig.message[0] = 0;
+  assert!(call_verify(&contract, &processed_sig).await.is_err());
+}

coins/ethereum/tests/crypto.rs

@@ -0,0 +1,87 @@
+use k256::{
+  elliptic_curve::{bigint::ArrayEncoding, ops::Reduce, sec1::ToEncodedPoint},
+  ProjectivePoint, Scalar, U256,
+};
+use frost::{curve::Secp256k1, Participant};
+
+use ethereum_serai::crypto::*;
+
+#[test]
+fn test_ecrecover() {
+  use rand_core::OsRng;
+  use sha2::Sha256;
+  use sha3::{Digest, Keccak256};
+  use k256::ecdsa::{hazmat::SignPrimitive, signature::DigestVerifier, SigningKey, VerifyingKey};
+
+  let private = SigningKey::random(&mut OsRng);
+  let public = VerifyingKey::from(&private);
+
+  const MESSAGE: &[u8] = b"Hello, World!";
+  let (sig, recovery_id) = private
+    .as_nonzero_scalar()
+    .try_sign_prehashed_rfc6979::<Sha256>(&Keccak256::digest(MESSAGE), b"")
+    .unwrap();
+  #[allow(clippy::unit_cmp)] // Intended to assert this wasn't changed to Result<bool>
+  {
+    assert_eq!(public.verify_digest(Keccak256::new_with_prefix(MESSAGE), &sig).unwrap(), ());
+  }
+
+  assert_eq!(
+    ecrecover(hash_to_scalar(MESSAGE), recovery_id.unwrap().is_y_odd().into(), *sig.r(), *sig.s())
+      .unwrap(),
+    address(&ProjectivePoint::from(public.as_affine()))
+  );
+}
+
+#[test]
+fn test_signing() {
+  use frost::{
+    algorithm::IetfSchnorr,
+    tests::{algorithm_machines, key_gen, sign},
+  };
+  use rand_core::OsRng;
+
+  let keys = key_gen::<_, Secp256k1>(&mut OsRng);
+  let _group_key = keys[&Participant::new(1).unwrap()].group_key();
+
+  const MESSAGE: &[u8] = b"Hello, World!";
+
+  let algo = IetfSchnorr::<Secp256k1, EthereumHram>::ietf();
+  let _sig =
+    sign(&mut OsRng, &algo, keys.clone(), algorithm_machines(&mut OsRng, &algo, &keys), MESSAGE);
+}
+
+#[test]
+fn test_ecrecover_hack() {
+  use frost::{
+    algorithm::IetfSchnorr,
+    tests::{algorithm_machines, key_gen, sign},
+  };
+  use rand_core::OsRng;
+
+  let keys = key_gen::<_, Secp256k1>(&mut OsRng);
+  let group_key = keys[&Participant::new(1).unwrap()].group_key();
+  let group_key_encoded = group_key.to_encoded_point(true);
+  let group_key_compressed = group_key_encoded.as_ref();
+  let group_key_x = Scalar::reduce(U256::from_be_slice(&group_key_compressed[1 .. 33]));
+
+  const MESSAGE: &[u8] = b"Hello, World!";
+  let hashed_message = keccak256(MESSAGE);
+  let chain_id = U256::ONE;
+
+  let full_message = &[chain_id.to_be_byte_array().as_slice(), &hashed_message].concat();
+
+  let algo = IetfSchnorr::<Secp256k1, EthereumHram>::ietf();
+  let sig = sign(
+    &mut OsRng,
+    &algo,
+    keys.clone(),
+    algorithm_machines(&mut OsRng, &algo, &keys),
+    full_message,
+  );
+
+  let (sr, er) =
+    preprocess_signature_for_ecrecover(hashed_message, &sig.R, sig.s, &group_key, chain_id);
+  let q = ecrecover(sr, group_key_compressed[0] - 2, group_key_x, er).unwrap();
+  assert_eq!(q, address(&sig.R));
+}

coins/ethereum/tests/mod.rs

@@ -0,0 +1,2 @@
+mod contract;
+mod crypto;

coins/monero/generators/Cargo.toml

@@ -26,9 +26,6 @@ curve25519-dalek = { version = "4", default-features = false, features = ["alloc
 group = { version = "0.13", default-features = false }
 dalek-ff-group = { path = "../../../crypto/dalek-ff-group", version = "0.4", default-features = false }
 
-[dev-dependencies]
-hex = "0.4"
-
 [features]
 std = ["std-shims/std", "subtle/std", "sha3/std", "dalek-ff-group/std"]
 default = ["std"]

coins/monero/generators/src/hash_to_point.rs

@@ -7,16 +7,7 @@ use dalek_ff_group::FieldElement;
 
 use crate::hash;
 
-/// Decompress canonically encoded ed25519 point
-/// It does not check if the point is in the prime order subgroup
-pub fn decompress_point(bytes: [u8; 32]) -> Option<EdwardsPoint> {
-  CompressedEdwardsY(bytes)
-    .decompress()
-    // Ban points which are either unreduced or -0
-    .filter(|point| point.compress().to_bytes() == bytes)
-}
-
-/// Monero's hash to point function, as named `hash_to_ec`.
+/// Monero's hash to point function, as named `ge_fromfe_frombytes_vartime`.
 pub fn hash_to_point(bytes: [u8; 32]) -> EdwardsPoint {
   #[allow(non_snake_case)]
   let A = FieldElement::from(486662u64);
@@ -56,5 +47,5 @@ pub fn hash_to_point(bytes: [u8; 32]) -> EdwardsPoint {
   let mut bytes = Y.to_repr();
   bytes[31] |= sign.unwrap_u8() << 7;
 
-  decompress_point(bytes).unwrap().mul_by_cofactor()
+  CompressedEdwardsY(bytes).decompress().unwrap().mul_by_cofactor()
 }

coins/monero/generators/src/lib.rs

@@ -9,7 +9,7 @@ use std_shims::{sync::OnceLock, vec::Vec};
 
 use sha3::{Digest, Keccak256};
 
-use curve25519_dalek::edwards::{EdwardsPoint as DalekPoint};
+use curve25519_dalek::edwards::{EdwardsPoint as DalekPoint, CompressedEdwardsY};
 
 use group::{Group, GroupEncoding};
 use dalek_ff_group::EdwardsPoint;
@@ -18,10 +18,7 @@ mod varint;
 use varint::write_varint;
 
 mod hash_to_point;
-pub use hash_to_point::{hash_to_point, decompress_point};
-
-#[cfg(test)]
-mod tests;
+pub use hash_to_point::hash_to_point;
 
 fn hash(data: &[u8]) -> [u8; 32] {
   Keccak256::digest(data).into()
@@ -32,7 +29,10 @@ static H_CELL: OnceLock<DalekPoint> = OnceLock::new();
 #[allow(non_snake_case)]
 pub fn H() -> DalekPoint {
   *H_CELL.get_or_init(|| {
-    decompress_point(hash(&EdwardsPoint::generator().to_bytes())).unwrap().mul_by_cofactor()
+    CompressedEdwardsY(hash(&EdwardsPoint::generator().to_bytes()))
+      .decompress()
+      .unwrap()
+      .mul_by_cofactor()
   })
 }
 

coins/monero/generators/src/tests/hash_to_point.rs

@@ -1,38 +0,0 @@
-use crate::{decompress_point, hash_to_point};
-
-#[test]
-fn crypto_tests() {
-  // tests.txt file copied from monero repo
-  // https://github.com/monero-project/monero/
-  //   blob/ac02af92867590ca80b2779a7bbeafa99ff94dcb/tests/crypto/tests.txt
-  let reader = include_str!("./tests.txt");
-
-  for line in reader.lines() {
-    let mut words = line.split_whitespace();
-    let command = words.next().unwrap();
-
-    match command {
-      "check_key" => {
-        let key = words.next().unwrap();
-        let expected = match words.next().unwrap() {
-          "true" => true,
-          "false" => false,
-          _ => unreachable!("invalid result"),
-        };
-
-        let actual = decompress_point(hex::decode(key).unwrap().try_into().unwrap());
-
-        assert_eq!(actual.is_some(), expected);
-      }
-      "hash_to_ec" => {
-        let bytes = words.next().unwrap();
-        let expected = words.next().unwrap();
-
-        let actual = hash_to_point(hex::decode(bytes).unwrap().try_into().unwrap());
-
-        assert_eq!(hex::encode(actual.compress().to_bytes()), expected);
-      }
-      _ => unreachable!("unknown command"),
-    }
-  }
-}

coins/monero/generators/src/tests/mod.rs

@@ -1 +0,0 @@
-mod hash_to_point;

coins/monero/generators/src/tests/tests.txt

@@ -1,628 +0,0 @@
-check_key c2cb3cf3840aa9893e00ec77093d3d44dba7da840b51c48462072d58d8efd183 false
-check_key bd85a61bae0c101d826cbed54b1290f941d26e70607a07fc6f0ad611eb8f70a6 true
-check_key 328f81cad4eba24ab2bad7c0e56b1e2e7346e625bcb06ae649aef3ffa0b8bef3 false
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coins/monero/src/bin/reserialize_chain.rs

@@ -2,7 +2,10 @@
 mod binaries {
   pub(crate) use std::sync::Arc;
 
-  pub(crate) use curve25519_dalek::{scalar::Scalar, edwards::EdwardsPoint};
+  pub(crate) use curve25519_dalek::{
+    scalar::Scalar,
+    edwards::{CompressedEdwardsY, EdwardsPoint},
+  };
 
   pub(crate) use multiexp::BatchVerifier;
 
@@ -17,8 +20,6 @@ mod binaries {
     rpc::{RpcError, Rpc, HttpRpc},
   };
 
-  pub(crate) use monero_generators::decompress_point;
-
   pub(crate) use tokio::task::JoinHandle;
 
   pub(crate) async fn check_block(rpc: Arc<Rpc<HttpRpc>>, block_i: usize) {
@@ -200,12 +201,13 @@ mod binaries {
                 };
 
                 let rpc_point = |point: &str| {
-                  decompress_point(
+                  CompressedEdwardsY(
                     hex::decode(point)
                       .expect("invalid hex for ring member")
                       .try_into()
                       .expect("invalid point len for ring member"),
                   )
+                  .decompress()
                   .expect("invalid point for ring member")
                 };
 

coins/monero/src/block.rs

@@ -58,10 +58,10 @@ pub struct Block {
 }
 
 impl Block {
-  pub fn number(&self) -> Option<u64> {
+  pub fn number(&self) -> usize {
     match self.miner_tx.prefix.inputs.first() {
-      Some(Input::Gen(number)) => Some(*number),
-      _ => None,
+      Some(Input::Gen(number)) => (*number).try_into().unwrap(),
+      _ => panic!("invalid block, miner TX didn't have a Input::Gen"),
     }
   }
 
@@ -114,16 +114,9 @@ impl Block {
   }
 
   pub fn read<R: Read>(r: &mut R) -> io::Result<Block> {
-    let header = BlockHeader::read(r)?;
-
-    let miner_tx = Transaction::read(r)?;
-    if !matches!(miner_tx.prefix.inputs.as_slice(), &[Input::Gen(_)]) {
-      Err(io::Error::other("Miner transaction has incorrect input type."))?;
-    }
-
     Ok(Block {
-      header,
-      miner_tx,
+      header: BlockHeader::read(r)?,
+      miner_tx: Transaction::read(r)?,
       txs: (0_usize .. read_varint(r)?).map(|_| read_bytes(r)).collect::<Result<_, _>>()?,
     })
   }

coins/monero/src/lib.rs

@@ -16,7 +16,7 @@ use sha3::{Digest, Keccak256};
 
 use curve25519_dalek::{constants::ED25519_BASEPOINT_TABLE, scalar::Scalar, edwards::EdwardsPoint};
 
-pub use monero_generators::{H, decompress_point};
+pub use monero_generators::H;
 
 mod merkle;
 
@@ -46,10 +46,6 @@ pub mod wallet;
 #[cfg(test)]
 mod tests;
 
-pub const DEFAULT_LOCK_WINDOW: usize = 10;
-pub const COINBASE_LOCK_WINDOW: usize = 60;
-pub const BLOCK_TIME: usize = 120;
-
 static INV_EIGHT_CELL: OnceLock<Scalar> = OnceLock::new();
 #[allow(non_snake_case)]
 pub(crate) fn INV_EIGHT() -> Scalar {

coins/monero/src/ringct/bulletproofs/original.rs

@@ -9,7 +9,7 @@ use curve25519_dalek::{scalar::Scalar as DalekScalar, edwards::EdwardsPoint as D
 use group::{ff::Field, Group};
 use dalek_ff_group::{ED25519_BASEPOINT_POINT as G, Scalar, EdwardsPoint};
 
-use multiexp::{BatchVerifier, multiexp};
+use multiexp::BatchVerifier;
 
 use crate::{Commitment, ringct::bulletproofs::core::*};
 
@@ -17,20 +17,7 @@ include!(concat!(env!("OUT_DIR"), "/generators.rs"));
 
 static IP12_CELL: OnceLock<Scalar> = OnceLock::new();
 pub(crate) fn IP12() -> Scalar {
-  *IP12_CELL.get_or_init(|| ScalarVector(vec![Scalar::ONE; N]).inner_product(TWO_N()))
-}
-
-pub(crate) fn hadamard_fold(
-  l: &[EdwardsPoint],
-  r: &[EdwardsPoint],
-  a: Scalar,
-  b: Scalar,
-) -> Vec<EdwardsPoint> {
-  let mut res = Vec::with_capacity(l.len() / 2);
-  for i in 0 .. l.len() {
-    res.push(multiexp(&[(a, l[i]), (b, r[i])]));
-  }
-  res
+  *IP12_CELL.get_or_init(|| inner_product(&ScalarVector(vec![Scalar::ONE; N]), TWO_N()))
 }
 
 #[derive(Clone, PartialEq, Eq, Debug)]
@@ -70,7 +57,7 @@ impl OriginalStruct {
     let mut cache = hash_to_scalar(&y.to_bytes());
     let z = cache;
 
-    let l0 = aL - z;
+    let l0 = &aL - z;
     let l1 = sL;
 
     let mut zero_twos = Vec::with_capacity(MN);
@@ -82,12 +69,12 @@ impl OriginalStruct {
     }
 
     let yMN = ScalarVector::powers(y, MN);
-    let r0 = ((aR + z) * &yMN) + &ScalarVector(zero_twos);
-    let r1 = yMN * &sR;
+    let r0 = (&(aR + z) * &yMN) + ScalarVector(zero_twos);
+    let r1 = yMN * sR;
 
     let (T1, T2, x, mut taux) = {
-      let t1 = l0.clone().inner_product(&r1) + r0.clone().inner_product(&l1);
-      let t2 = l1.clone().inner_product(&r1);
+      let t1 = inner_product(&l0, &r1) + inner_product(&l1, &r0);
+      let t2 = inner_product(&l1, &r1);
 
       let mut tau1 = Scalar::random(&mut *rng);
       let mut tau2 = Scalar::random(&mut *rng);
@@ -113,10 +100,10 @@ impl OriginalStruct {
       taux += zpow[i + 2] * gamma;
     }
 
-    let l = l0 + &(l1 * x);
-    let r = r0 + &(r1 * x);
+    let l = &l0 + &(l1 * x);
+    let r = &r0 + &(r1 * x);
 
-    let t = l.clone().inner_product(&r);
+    let t = inner_product(&l, &r);
 
     let x_ip =
       hash_cache(&mut cache, &[x.to_bytes(), taux.to_bytes(), mu.to_bytes(), t.to_bytes()]);
@@ -139,8 +126,8 @@ impl OriginalStruct {
       let (aL, aR) = a.split();
       let (bL, bR) = b.split();
 
-      let cL = aL.clone().inner_product(&bR);
-      let cR = aR.clone().inner_product(&bL);
+      let cL = inner_product(&aL, &bR);
+      let cR = inner_product(&aR, &bL);
 
       let (G_L, G_R) = G_proof.split_at(aL.len());
       let (H_L, H_R) = H_proof.split_at(aL.len());
@@ -153,8 +140,8 @@ impl OriginalStruct {
       let w = hash_cache(&mut cache, &[L_i.compress().to_bytes(), R_i.compress().to_bytes()]);
       let winv = w.invert().unwrap();
 
-      a = (aL * w) + &(aR * winv);
-      b = (bL * winv) + &(bR * w);
+      a = (aL * w) + (aR * winv);
+      b = (bL * winv) + (bR * w);
 
       if a.len() != 1 {
         G_proof = hadamard_fold(G_L, G_R, winv, w);

coins/monero/src/ringct/bulletproofs/plus/aggregate_range_proof.rs

@@ -112,7 +112,7 @@ impl AggregateRangeStatement {
     let mut d = ScalarVector::new(mn);
     for j in 1 ..= V.len() {
       z_pow.push(z.pow(Scalar::from(2 * u64::try_from(j).unwrap()))); // TODO: Optimize this
-      d = d + &(Self::d_j(j, V.len()) * (z_pow[j - 1]));
+      d = d.add_vec(&Self::d_j(j, V.len()).mul(z_pow[j - 1]));
     }
 
     let mut ascending_y = ScalarVector(vec![y]);
@@ -124,8 +124,7 @@ impl AggregateRangeStatement {
     let mut descending_y = ascending_y.clone();
     descending_y.0.reverse();
 
-    let d_descending_y = d.clone() * &descending_y;
-    let d_descending_y_plus_z = d_descending_y + z;
+    let d_descending_y = d.mul_vec(&descending_y);
 
     let y_mn_plus_one = descending_y[0] * y;
 
@@ -136,9 +135,9 @@ impl AggregateRangeStatement {
 
     let neg_z = -z;
     let mut A_terms = Vec::with_capacity((generators.len() * 2) + 2);
-    for (i, d_y_z) in d_descending_y_plus_z.0.iter().enumerate() {
+    for (i, d_y_z) in d_descending_y.add(z).0.drain(..).enumerate() {
       A_terms.push((neg_z, generators.generator(GeneratorsList::GBold1, i)));
-      A_terms.push((*d_y_z, generators.generator(GeneratorsList::HBold1, i)));
+      A_terms.push((d_y_z, generators.generator(GeneratorsList::HBold1, i)));
     }
     A_terms.push((y_mn_plus_one, commitment_accum));
     A_terms.push((
@@ -146,14 +145,7 @@ impl AggregateRangeStatement {
       Generators::g(),
     ));
 
-    (
-      y,
-      d_descending_y_plus_z,
-      y_mn_plus_one,
-      z,
-      ScalarVector(z_pow),
-      A + multiexp_vartime(&A_terms),
-    )
+    (y, d_descending_y, y_mn_plus_one, z, ScalarVector(z_pow), A + multiexp_vartime(&A_terms))
   }
 
   pub(crate) fn prove<R: RngCore + CryptoRng>(
@@ -199,7 +191,7 @@ impl AggregateRangeStatement {
       a_l.0.append(&mut u64_decompose(*witness.values.get(j - 1).unwrap_or(&0)).0);
     }
 
-    let a_r = a_l.clone() - Scalar::ONE;
+    let a_r = a_l.sub(Scalar::ONE);
 
     let alpha = Scalar::random(&mut *rng);
 
@@ -217,11 +209,11 @@ impl AggregateRangeStatement {
     // Multiply by INV_EIGHT per earlier commentary
     A.0 *= crate::INV_EIGHT();
 
-    let (y, d_descending_y_plus_z, y_mn_plus_one, z, z_pow, A_hat) =
+    let (y, d_descending_y, y_mn_plus_one, z, z_pow, A_hat) =
       Self::compute_A_hat(PointVector(V), &generators, &mut transcript, A);
 
-    let a_l = a_l - z;
-    let a_r = a_r + &d_descending_y_plus_z;
+    let a_l = a_l.sub(z);
+    let a_r = a_r.add_vec(&d_descending_y).add(z);
     let mut alpha = alpha;
     for j in 1 ..= witness.gammas.len() {
       alpha += z_pow[j - 1] * witness.gammas[j - 1] * y_mn_plus_one;

coins/monero/src/ringct/bulletproofs/plus/mod.rs

@@ -3,7 +3,8 @@
 use group::Group;
 use dalek_ff_group::{Scalar, EdwardsPoint};
 
-pub(crate) use crate::ringct::bulletproofs::scalar_vector::ScalarVector;
+mod scalar_vector;
+pub(crate) use scalar_vector::{ScalarVector, weighted_inner_product};
 mod point_vector;
 pub(crate) use point_vector::PointVector;
 

coins/monero/src/ringct/bulletproofs/plus/scalar_vector.rs

@@ -0,0 +1,114 @@
+use core::{
+  borrow::Borrow,
+  ops::{Index, IndexMut},
+};
+use std_shims::vec::Vec;
+
+use zeroize::Zeroize;
+
+use group::ff::Field;
+use dalek_ff_group::Scalar;
+
+#[derive(Clone, PartialEq, Eq, Debug, Zeroize)]
+pub(crate) struct ScalarVector(pub(crate) Vec<Scalar>);
+
+impl Index<usize> for ScalarVector {
+  type Output = Scalar;
+  fn index(&self, index: usize) -> &Scalar {
+    &self.0[index]
+  }
+}
+
+impl IndexMut<usize> for ScalarVector {
+  fn index_mut(&mut self, index: usize) -> &mut Scalar {
+    &mut self.0[index]
+  }
+}
+
+impl ScalarVector {
+  pub(crate) fn new(len: usize) -> Self {
+    ScalarVector(vec![Scalar::ZERO; len])
+  }
+
+  pub(crate) fn add(&self, scalar: impl Borrow<Scalar>) -> Self {
+    let mut res = self.clone();
+    for val in &mut res.0 {
+      *val += scalar.borrow();
+    }
+    res
+  }
+
+  pub(crate) fn sub(&self, scalar: impl Borrow<Scalar>) -> Self {
+    let mut res = self.clone();
+    for val in &mut res.0 {
+      *val -= scalar.borrow();
+    }
+    res
+  }
+
+  pub(crate) fn mul(&self, scalar: impl Borrow<Scalar>) -> Self {
+    let mut res = self.clone();
+    for val in &mut res.0 {
+      *val *= scalar.borrow();
+    }
+    res
+  }
+
+  pub(crate) fn add_vec(&self, vector: &Self) -> Self {
+    debug_assert_eq!(self.len(), vector.len());
+    let mut res = self.clone();
+    for (i, val) in res.0.iter_mut().enumerate() {
+      *val += vector.0[i];
+    }
+    res
+  }
+
+  pub(crate) fn mul_vec(&self, vector: &Self) -> Self {
+    debug_assert_eq!(self.len(), vector.len());
+    let mut res = self.clone();
+    for (i, val) in res.0.iter_mut().enumerate() {
+      *val *= vector.0[i];
+    }
+    res
+  }
+
+  pub(crate) fn inner_product(&self, vector: &Self) -> Scalar {
+    self.mul_vec(vector).sum()
+  }
+
+  pub(crate) fn powers(x: Scalar, len: usize) -> Self {
+    debug_assert!(len != 0);
+
+    let mut res = Vec::with_capacity(len);
+    res.push(Scalar::ONE);
+    res.push(x);
+    for i in 2 .. len {
+      res.push(res[i - 1] * x);
+    }
+    res.truncate(len);
+    ScalarVector(res)
+  }
+
+  pub(crate) fn sum(mut self) -> Scalar {
+    self.0.drain(..).sum()
+  }
+
+  pub(crate) fn len(&self) -> usize {
+    self.0.len()
+  }
+
+  pub(crate) fn split(mut self) -> (Self, Self) {
+    debug_assert!(self.len() > 1);
+    let r = self.0.split_off(self.0.len() / 2);
+    debug_assert_eq!(self.len(), r.len());
+    (self, ScalarVector(r))
+  }
+}
+
+pub(crate) fn weighted_inner_product(
+  a: &ScalarVector,
+  b: &ScalarVector,
+  y: &ScalarVector,
+) -> Scalar {
+  a.inner_product(&b.mul_vec(y))
+}

coins/monero/src/ringct/bulletproofs/plus/weighted_inner_product.rs

@@ -4,7 +4,7 @@ use rand_core::{RngCore, CryptoRng};
 
 use zeroize::{Zeroize, ZeroizeOnDrop};
 
-use multiexp::{BatchVerifier, multiexp, multiexp_vartime};
+use multiexp::{multiexp, multiexp_vartime, BatchVerifier};
 use group::{
   ff::{Field, PrimeField},
   GroupEncoding,
@@ -12,7 +12,8 @@ use group::{
 use dalek_ff_group::{Scalar, EdwardsPoint};
 
 use crate::ringct::bulletproofs::plus::{
-  ScalarVector, PointVector, GeneratorsList, Generators, padded_pow_of_2, transcript::*,
+  ScalarVector, PointVector, GeneratorsList, Generators, padded_pow_of_2, weighted_inner_product,
+  transcript::*,
 };
 
 // Figure 1
@@ -218,7 +219,7 @@ impl WipStatement {
         .zip(g_bold.0.iter().copied())
         .chain(witness.b.0.iter().copied().zip(h_bold.0.iter().copied()))
         .collect::<Vec<_>>();
-      P_terms.push((witness.a.clone().weighted_inner_product(&witness.b, &y), g));
+      P_terms.push((weighted_inner_product(&witness.a, &witness.b, &y), g));
       P_terms.push((witness.alpha, h));
       debug_assert_eq!(multiexp(&P_terms), P);
       P_terms.zeroize();
@@ -257,13 +258,14 @@ impl WipStatement {
       let d_l = Scalar::random(&mut *rng);
       let d_r = Scalar::random(&mut *rng);
 
-      let c_l = a1.clone().weighted_inner_product(&b2, &y);
-      let c_r = (a2.clone() * y_n_hat).weighted_inner_product(&b1, &y);
+      let c_l = weighted_inner_product(&a1, &b2, &y);
+      let c_r = weighted_inner_product(&(a2.mul(y_n_hat)), &b1, &y);
 
       // TODO: Calculate these with a batch inversion
       let y_inv_n_hat = y_n_hat.invert().unwrap();
 
-      let mut L_terms = (a1.clone() * y_inv_n_hat)
+      let mut L_terms = a1
+        .mul(y_inv_n_hat)
         .0
         .drain(..)
         .zip(g_bold2.0.iter().copied())
@@ -275,7 +277,8 @@ impl WipStatement {
       L_vec.push(L);
       L_terms.zeroize();
 
-      let mut R_terms = (a2.clone() * y_n_hat)
+      let mut R_terms = a2
+        .mul(y_n_hat)
         .0
         .drain(..)
         .zip(g_bold1.0.iter().copied())
@@ -291,8 +294,8 @@ impl WipStatement {
       (e, inv_e, e_square, inv_e_square, g_bold, h_bold) =
         Self::next_G_H(&mut transcript, g_bold1, g_bold2, h_bold1, h_bold2, L, R, y_inv_n_hat);
 
-      a = (a1 * e) + &(a2 * (y_n_hat * inv_e));
-      b = (b1 * inv_e) + &(b2 * e);
+      a = a1.mul(e).add_vec(&a2.mul(y_n_hat * inv_e));
+      b = b1.mul(inv_e).add_vec(&b2.mul(e));
       alpha += (d_l * e_square) + (d_r * inv_e_square);
 
       debug_assert_eq!(g_bold.len(), a.len());

coins/monero/src/ringct/bulletproofs/scalar_vector.rs

@@ -1,17 +1,85 @@
-use core::{
-  borrow::Borrow,
-  ops::{Index, IndexMut, Add, Sub, Mul},
-};
+use core::ops::{Add, Sub, Mul, Index};
 use std_shims::vec::Vec;
 
 use zeroize::{Zeroize, ZeroizeOnDrop};
 
 use group::ff::Field;
 use dalek_ff_group::{Scalar, EdwardsPoint};
+
 use multiexp::multiexp;
 
 #[derive(Clone, PartialEq, Eq, Debug, Zeroize, ZeroizeOnDrop)]
 pub(crate) struct ScalarVector(pub(crate) Vec<Scalar>);
+macro_rules! math_op {
+  ($Op: ident, $op: ident, $f: expr) => {
+    #[allow(clippy::redundant_closure_call)]
+    impl $Op<Scalar> for ScalarVector {
+      type Output = ScalarVector;
+      fn $op(self, b: Scalar) -> ScalarVector {
+        ScalarVector(self.0.iter().map(|a| $f((a, &b))).collect())
+      }
+    }
+
+    #[allow(clippy::redundant_closure_call)]
+    impl $Op<Scalar> for &ScalarVector {
+      type Output = ScalarVector;
+      fn $op(self, b: Scalar) -> ScalarVector {
+        ScalarVector(self.0.iter().map(|a| $f((a, &b))).collect())
+      }
+    }
+
+    #[allow(clippy::redundant_closure_call)]
+    impl $Op<ScalarVector> for ScalarVector {
+      type Output = ScalarVector;
+      fn $op(self, b: ScalarVector) -> ScalarVector {
+        debug_assert_eq!(self.len(), b.len());
+        ScalarVector(self.0.iter().zip(b.0.iter()).map($f).collect())
+      }
+    }
+
+    #[allow(clippy::redundant_closure_call)]
+    impl $Op<&ScalarVector> for &ScalarVector {
+      type Output = ScalarVector;
+      fn $op(self, b: &ScalarVector) -> ScalarVector {
+        debug_assert_eq!(self.len(), b.len());
+        ScalarVector(self.0.iter().zip(b.0.iter()).map($f).collect())
+      }
+    }
+  };
+}
+math_op!(Add, add, |(a, b): (&Scalar, &Scalar)| *a + *b);
+math_op!(Sub, sub, |(a, b): (&Scalar, &Scalar)| *a - *b);
+math_op!(Mul, mul, |(a, b): (&Scalar, &Scalar)| *a * *b);
+
+impl ScalarVector {
+  pub(crate) fn new(len: usize) -> ScalarVector {
+    ScalarVector(vec![Scalar::ZERO; len])
+  }
+
+  pub(crate) fn powers(x: Scalar, len: usize) -> ScalarVector {
+    debug_assert!(len != 0);
+
+    let mut res = Vec::with_capacity(len);
+    res.push(Scalar::ONE);
+    for i in 1 .. len {
+      res.push(res[i - 1] * x);
+    }
+    ScalarVector(res)
+  }
+
+  pub(crate) fn sum(mut self) -> Scalar {
+    self.0.drain(..).sum()
+  }
+
+  pub(crate) fn len(&self) -> usize {
+    self.0.len()
+  }
+
+  pub(crate) fn split(self) -> (ScalarVector, ScalarVector) {
+    let (l, r) = self.0.split_at(self.0.len() / 2);
+    (ScalarVector(l.to_vec()), ScalarVector(r.to_vec()))
+  }
+}
 
 impl Index<usize> for ScalarVector {
   type Output = Scalar;
@@ -19,120 +87,28 @@ impl Index<usize> for ScalarVector {
     &self.0[index]
   }
 }
-impl IndexMut<usize> for ScalarVector {
-  fn index_mut(&mut self, index: usize) -> &mut Scalar {
-    &mut self.0[index]
-  }
-}
 
-impl<S: Borrow<Scalar>> Add<S> for ScalarVector {
-  type Output = ScalarVector;
-  fn add(mut self, scalar: S) -> ScalarVector {
-    for s in &mut self.0 {
-      *s += scalar.borrow();
-    }
-    self
-  }
-}
-impl<S: Borrow<Scalar>> Sub<S> for ScalarVector {
-  type Output = ScalarVector;
-  fn sub(mut self, scalar: S) -> ScalarVector {
-    for s in &mut self.0 {
-      *s -= scalar.borrow();
-    }
-    self
-  }
-}
-impl<S: Borrow<Scalar>> Mul<S> for ScalarVector {
-  type Output = ScalarVector;
-  fn mul(mut self, scalar: S) -> ScalarVector {
-    for s in &mut self.0 {
-      *s *= scalar.borrow();
-    }
-    self
-  }
-}
-
-impl Add<&ScalarVector> for ScalarVector {
-  type Output = ScalarVector;
-  fn add(mut self, other: &ScalarVector) -> ScalarVector {
-    debug_assert_eq!(self.len(), other.len());
-    for (s, o) in self.0.iter_mut().zip(other.0.iter()) {
-      *s += o;
-    }
-    self
-  }
-}
-impl Sub<&ScalarVector> for ScalarVector {
-  type Output = ScalarVector;
-  fn sub(mut self, other: &ScalarVector) -> ScalarVector {
-    debug_assert_eq!(self.len(), other.len());
-    for (s, o) in self.0.iter_mut().zip(other.0.iter()) {
-      *s -= o;
-    }
-    self
-  }
-}
-impl Mul<&ScalarVector> for ScalarVector {
-  type Output = ScalarVector;
-  fn mul(mut self, other: &ScalarVector) -> ScalarVector {
-    debug_assert_eq!(self.len(), other.len());
-    for (s, o) in self.0.iter_mut().zip(other.0.iter()) {
-      *s *= o;
-    }
-    self
-  }
+pub(crate) fn inner_product(a: &ScalarVector, b: &ScalarVector) -> Scalar {
+  (a * b).sum()
 }
 
 impl Mul<&[EdwardsPoint]> for &ScalarVector {
   type Output = EdwardsPoint;
   fn mul(self, b: &[EdwardsPoint]) -> EdwardsPoint {
     debug_assert_eq!(self.len(), b.len());
-    let mut multiexp_args = self.0.iter().copied().zip(b.iter().copied()).collect::<Vec<_>>();
-    let res = multiexp(&multiexp_args);
-    multiexp_args.zeroize();
+    multiexp(&self.0.iter().copied().zip(b.iter().copied()).collect::<Vec<_>>())
+  }
+}
+
+pub(crate) fn hadamard_fold(
+  l: &[EdwardsPoint],
+  r: &[EdwardsPoint],
+  a: Scalar,
+  b: Scalar,
+) -> Vec<EdwardsPoint> {
+  let mut res = Vec::with_capacity(l.len() / 2);
+  for i in 0 .. l.len() {
+    res.push(multiexp(&[(a, l[i]), (b, r[i])]));
+  }
   res
-  }
-}
-
-impl ScalarVector {
-  pub(crate) fn new(len: usize) -> Self {
-    ScalarVector(vec![Scalar::ZERO; len])
-  }
-
-  pub(crate) fn powers(x: Scalar, len: usize) -> Self {
-    debug_assert!(len != 0);
-
-    let mut res = Vec::with_capacity(len);
-    res.push(Scalar::ONE);
-    res.push(x);
-    for i in 2 .. len {
-      res.push(res[i - 1] * x);
-    }
-    res.truncate(len);
-    ScalarVector(res)
-  }
-
-  pub(crate) fn len(&self) -> usize {
-    self.0.len()
-  }
-
-  pub(crate) fn sum(mut self) -> Scalar {
-    self.0.drain(..).sum()
-  }
-
-  pub(crate) fn inner_product(self, vector: &Self) -> Scalar {
-    (self * vector).sum()
-  }
-
-  pub(crate) fn weighted_inner_product(self, vector: &Self, y: &Self) -> Scalar {
-    (self * vector * y).sum()
-  }
-
-  pub(crate) fn split(mut self) -> (Self, Self) {
-    debug_assert!(self.len() > 1);
-    let r = self.0.split_off(self.0.len() / 2);
-    debug_assert_eq!(self.len(), r.len());
-    (self, ScalarVector(r))
-  }
 }

coins/monero/src/ringct/clsag/mod.rs

@@ -9,7 +9,7 @@ use std_shims::{
 use rand_core::{RngCore, CryptoRng};
 
 use zeroize::{Zeroize, ZeroizeOnDrop, Zeroizing};
-use subtle::{ConstantTimeEq, ConditionallySelectable};
+use subtle::{ConstantTimeEq, Choice, CtOption};
 
 use curve25519_dalek::{
   constants::ED25519_BASEPOINT_TABLE,
@@ -169,8 +169,13 @@ fn core(
   }
 
   // Perform the core loop
-  let mut c1 = c;
+  let mut c1 = CtOption::new(Scalar::ZERO, Choice::from(0));
   for i in (start .. end).map(|i| i % n) {
+    // This will only execute once and shouldn't need to be constant time. Making it constant time
+    // removes the risk of branch prediction creating timing differences depending on ring index
+    // however
+    c1 = c1.or_else(|| CtOption::new(c, i.ct_eq(&0)));
+
     let c_p = mu_P * c;
     let c_c = mu_C * c;
 
@@ -183,15 +188,10 @@ fn core(
     to_hash.extend(L.compress().to_bytes());
     to_hash.extend(R.compress().to_bytes());
     c = hash_to_scalar(&to_hash);
-
-    // This will only execute once and shouldn't need to be constant time. Making it constant time
-    // removes the risk of branch prediction creating timing differences depending on ring index
-    // however
-    c1.conditional_assign(&c, i.ct_eq(&(n - 1)));
   }
 
   // This first tuple is needed to continue signing, the latter is the c to be tested/worked with
-  ((D, c * mu_P, c * mu_C), c1)
+  ((D, c * mu_P, c * mu_C), c1.unwrap_or(c))
 }
 
 /// CLSAG signature, as used in Monero.

coins/monero/src/ringct/clsag/multisig.rs

@@ -199,7 +199,6 @@ impl Algorithm<Ed25519> for ClsagMultisig {
     l: Participant,
     addendum: ClsagAddendum,
   ) -> Result<(), FrostError> {
-    // TODO: This check is faulty if two shares are additive inverses of each other
     if self.image.is_identity().into() {
       self.transcript.domain_separate(b"CLSAG");
       self.input().transcript(&mut self.transcript);

coins/monero/src/ringct/mlsag.rs

@@ -33,10 +33,7 @@ pub struct RingMatrix {
 
 impl RingMatrix {
   pub fn new(matrix: Vec<Vec<EdwardsPoint>>) -> Result<Self, MlsagError> {
-    // Monero requires that there is more than one ring member for MLSAG signatures:
-    // https://github.com/monero-project/monero/blob/ac02af92867590ca80b2779a7bbeafa99ff94dcb/
-    // src/ringct/rctSigs.cpp#L462
-    if matrix.len() < 2 {
+    if matrix.is_empty() {
       Err(MlsagError::InvalidRing)?;
     }
     for member in &matrix {

coins/monero/src/ringct/mod.rs

@@ -257,8 +257,7 @@ impl RctPrunable {
 
   pub fn read<R: Read>(
     rct_type: RctType,
-    ring_length: usize,
-    inputs: usize,
+    decoys: &[usize],
     outputs: usize,
     r: &mut R,
   ) -> io::Result<RctPrunable> {
@@ -269,7 +268,7 @@ impl RctPrunable {
     //   src/ringct/rctSigs.cpp#L609
     // And then for RctNull, that's only allowed for miner TXs which require one input of
     // Input::Gen
-    if inputs == 0 {
+    if decoys.is_empty() {
       Err(io::Error::other("transaction had no inputs"))?;
     }
 
@@ -277,11 +276,11 @@ impl RctPrunable {
       RctType::Null => RctPrunable::Null,
       RctType::MlsagAggregate => RctPrunable::AggregateMlsagBorromean {
         borromean: read_raw_vec(BorromeanRange::read, outputs, r)?,
-        mlsag: Mlsag::read(ring_length, inputs + 1, r)?,
+        mlsag: Mlsag::read(decoys[0], decoys.len() + 1, r)?,
       },
       RctType::MlsagIndividual => RctPrunable::MlsagBorromean {
         borromean: read_raw_vec(BorromeanRange::read, outputs, r)?,
-        mlsags: (0 .. inputs).map(|_| Mlsag::read(ring_length, 2, r)).collect::<Result<_, _>>()?,
+        mlsags: decoys.iter().map(|d| Mlsag::read(*d, 2, r)).collect::<Result<_, _>>()?,
       },
       RctType::Bulletproofs | RctType::BulletproofsCompactAmount => {
         RctPrunable::MlsagBulletproofs {
@@ -296,10 +295,8 @@ impl RctPrunable {
             }
             Bulletproofs::read(r)?
           },
-          mlsags: (0 .. inputs)
-            .map(|_| Mlsag::read(ring_length, 2, r))
-            .collect::<Result<_, _>>()?,
-          pseudo_outs: read_raw_vec(read_point, inputs, r)?,
+          mlsags: decoys.iter().map(|d| Mlsag::read(*d, 2, r)).collect::<Result<_, _>>()?,
+          pseudo_outs: read_raw_vec(read_point, decoys.len(), r)?,
         }
       }
       RctType::Clsag | RctType::BulletproofsPlus => RctPrunable::Clsag {
@@ -311,8 +308,8 @@ impl RctPrunable {
             r,
           )?
         },
-        clsags: (0 .. inputs).map(|_| Clsag::read(ring_length, r)).collect::<Result<_, _>>()?,
-        pseudo_outs: read_raw_vec(read_point, inputs, r)?,
+        clsags: (0 .. decoys.len()).map(|o| Clsag::read(decoys[o], r)).collect::<Result<_, _>>()?,
+        pseudo_outs: read_raw_vec(read_point, decoys.len(), r)?,
       },
     })
   }
@@ -385,16 +382,8 @@ impl RctSignatures {
     serialized
   }
 
-  pub fn read<R: Read>(
-    ring_length: usize,
-    inputs: usize,
-    outputs: usize,
-    r: &mut R,
-  ) -> io::Result<RctSignatures> {
-    let base = RctBase::read(inputs, outputs, r)?;
-    Ok(RctSignatures {
-      base: base.0,
-      prunable: RctPrunable::read(base.1, ring_length, inputs, outputs, r)?,
-    })
+  pub fn read<R: Read>(decoys: &[usize], outputs: usize, r: &mut R) -> io::Result<RctSignatures> {
+    let base = RctBase::read(decoys.len(), outputs, r)?;
+    Ok(RctSignatures { base: base.0, prunable: RctPrunable::read(base.1, decoys, outputs, r)? })
   }
 }

coins/monero/src/rpc/mod.rs

@@ -9,9 +9,7 @@ use std_shims::{
 
 use async_trait::async_trait;
 
-use curve25519_dalek::edwards::EdwardsPoint;
-
-use monero_generators::decompress_point;
+use curve25519_dalek::edwards::{EdwardsPoint, CompressedEdwardsY};
 
 use serde::{Serialize, Deserialize, de::DeserializeOwned};
 use serde_json::{Value, json};
@@ -54,15 +52,6 @@ struct TransactionsResponse {
   txs: Vec<TransactionResponse>,
 }
 
-#[derive(Deserialize, Debug)]
-pub struct OutputResponse {
-  pub height: usize,
-  pub unlocked: bool,
-  key: String,
-  mask: String,
-  txid: String,
-}
-
 #[derive(Clone, PartialEq, Eq, Debug)]
 #[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum RpcError {
@@ -97,9 +86,10 @@ fn hash_hex(hash: &str) -> Result<[u8; 32], RpcError> {
 }
 
 fn rpc_point(point: &str) -> Result<EdwardsPoint, RpcError> {
-  decompress_point(
+  CompressedEdwardsY(
     rpc_hex(point)?.try_into().map_err(|_| RpcError::InvalidPoint(point.to_string()))?,
   )
+  .decompress()
   .ok_or_else(|| RpcError::InvalidPoint(point.to_string()))
 }
 
@@ -543,15 +533,29 @@ impl<R: RpcConnection> Rpc<R> {
     Ok(distributions.distributions.swap_remove(0).distribution)
   }
 
-  /// Get the specified outputs from the RingCT (zero-amount) pool
-  pub async fn get_outs(&self, indexes: &[u64]) -> Result<Vec<OutputResponse>, RpcError> {
+  /// Get the specified outputs from the RingCT (zero-amount) pool, but only return them if their
+  /// timelock has been satisfied.
+  ///
+  /// The timelock being satisfied is distinct from being free of the 10-block lock applied to all
+  /// Monero transactions.
+  pub async fn get_unlocked_outputs(
+    &self,
+    indexes: &[u64],
+    height: usize,
+  ) -> Result<Vec<Option<[EdwardsPoint; 2]>>, RpcError> {
     #[derive(Deserialize, Debug)]
-    struct OutsResponse {
-      status: String,
-      outs: Vec<OutputResponse>,
+    struct Out {
+      key: String,
+      mask: String,
+      txid: String,
     }
 
-    let res: OutsResponse = self
+    #[derive(Deserialize, Debug)]
+    struct Outs {
+      outs: Vec<Out>,
+    }
+
+    let outs: Outs = self
       .rpc_call(
         "get_outs",
         Some(json!({
@@ -564,39 +568,15 @@ impl<R: RpcConnection> Rpc<R> {
       )
       .await?;
 
-    if res.status != "OK" {
-      Err(RpcError::InvalidNode("bad response to get_outs".to_string()))?;
-    }
-
-    Ok(res.outs)
-  }
-
-  /// Get the specified outputs from the RingCT (zero-amount) pool, but only return them if their
-  /// timelock has been satisfied.
-  ///
-  /// The timelock being satisfied is distinct from being free of the 10-block lock applied to all
-  /// Monero transactions.
-  pub async fn get_unlocked_outputs(
-    &self,
-    indexes: &[u64],
-    height: usize,
-    fingerprintable_canonical: bool,
-  ) -> Result<Vec<Option<[EdwardsPoint; 2]>>, RpcError> {
-    let outs: Vec<OutputResponse> = self.get_outs(indexes).await?;
-
-    // Only need to fetch txs to do canonical check on timelock
-    let txs = if fingerprintable_canonical {
-      self
+    let txs = self
       .get_transactions(
-          &outs.iter().map(|out| hash_hex(&out.txid)).collect::<Result<Vec<_>, _>>()?,
+        &outs.outs.iter().map(|out| hash_hex(&out.txid)).collect::<Result<Vec<_>, _>>()?,
       )
-        .await?
-    } else {
-      Vec::new()
-    };
+      .await?;
 
     // TODO: https://github.com/serai-dex/serai/issues/104
     outs
+      .outs
       .iter()
       .enumerate()
       .map(|(i, out)| {
@@ -605,20 +585,18 @@ impl<R: RpcConnection> Rpc<R> {
         // Only valid keys can be used in CLSAG proofs, hence the need for re-selection, yet
         // invalid keys may honestly exist on the blockchain
         // Only a recent hard fork checked output keys were valid points
-        let Some(key) = decompress_point(
+        let Some(key) = CompressedEdwardsY(
           rpc_hex(&out.key)?
             .try_into()
             .map_err(|_| RpcError::InvalidNode("non-32-byte point".to_string()))?,
-        ) else {
+        )
+        .decompress() else {
           return Ok(None);
         };
-        Ok(Some([key, rpc_point(&out.mask)?]).filter(|_| {
-          if fingerprintable_canonical {
-            Timelock::Block(height) >= txs[i].prefix.timelock
-          } else {
-            out.unlocked
-          }
-        }))
+        Ok(
+          Some([key, rpc_point(&out.mask)?])
+            .filter(|_| Timelock::Block(height) >= txs[i].prefix.timelock),
+        )
       })
       .collect()
   }
@@ -735,14 +713,13 @@ impl<R: RpcConnection> Rpc<R> {
     &self,
     address: &str,
     block_count: usize,
-  ) -> Result<(Vec<[u8; 32]>, usize), RpcError> {
+  ) -> Result<Vec<[u8; 32]>, RpcError> {
     #[derive(Debug, Deserialize)]
     struct BlocksResponse {
       blocks: Vec<String>,
-      height: usize,
     }
 
-    let res = self
+    let block_strs = self
       .json_rpc_call::<BlocksResponse>(
         "generateblocks",
         Some(json!({
@@ -750,12 +727,13 @@ impl<R: RpcConnection> Rpc<R> {
           "amount_of_blocks": block_count
         })),
       )
-      .await?;
+      .await?
+      .blocks;
 
-    let mut blocks = Vec::with_capacity(res.blocks.len());
-    for block in res.blocks {
+    let mut blocks = Vec::with_capacity(block_strs.len());
+    for block in block_strs {
       blocks.push(hash_hex(&block)?);
     }
-    Ok((blocks, res.height))
+    Ok(blocks)
   }
 }

coins/monero/src/serialize.rs

@@ -4,28 +4,19 @@ use std_shims::{
   io::{self, Read, Write},
 };
 
-use curve25519_dalek::{scalar::Scalar, edwards::EdwardsPoint};
-
-use monero_generators::decompress_point;
+use curve25519_dalek::{
+  scalar::Scalar,
+  edwards::{EdwardsPoint, CompressedEdwardsY},
+};
 
 const VARINT_CONTINUATION_MASK: u8 = 0b1000_0000;
 
 mod sealed {
-  pub trait VarInt: TryInto<u64> + TryFrom<u64> + Copy {
-    const BITS: usize;
-  }
-  impl VarInt for u8 {
-    const BITS: usize = 8;
-  }
-  impl VarInt for u32 {
-    const BITS: usize = 32;
-  }
-  impl VarInt for u64 {
-    const BITS: usize = 64;
-  }
-  impl VarInt for usize {
-    const BITS: usize = core::mem::size_of::<usize>() * 8;
-  }
+  pub trait VarInt: TryInto<u64> + TryFrom<u64> + Copy {}
+  impl VarInt for u8 {}
+  impl VarInt for u32 {}
+  impl VarInt for u64 {}
+  impl VarInt for usize {}
 }
 
 // This will panic if the VarInt exceeds u64::MAX
@@ -111,7 +102,7 @@ pub(crate) fn read_varint<R: Read, U: sealed::VarInt>(r: &mut R) -> io::Result<U
     if (bits != 0) && (b == 0) {
       Err(io::Error::other("non-canonical varint"))?;
     }
-    if ((bits + 7) >= U::BITS) && (b >= (1 << (U::BITS - bits))) {
+    if ((bits + 7) > 64) && (b >= (1 << (64 - bits))) {
       Err(io::Error::other("varint overflow"))?;
     }
 
@@ -135,7 +126,11 @@ pub(crate) fn read_scalar<R: Read>(r: &mut R) -> io::Result<Scalar> {
 
 pub(crate) fn read_point<R: Read>(r: &mut R) -> io::Result<EdwardsPoint> {
   let bytes = read_bytes(r)?;
-  decompress_point(bytes).ok_or_else(|| io::Error::other("invalid point"))
+  CompressedEdwardsY(bytes)
+    .decompress()
+    // Ban points which are either unreduced or -0
+    .filter(|point| point.compress().to_bytes() == bytes)
+    .ok_or_else(|| io::Error::other("invalid point"))
 }
 
 pub(crate) fn read_torsion_free_point<R: Read>(r: &mut R) -> io::Result<EdwardsPoint> {

coins/monero/src/tests/address.rs

@@ -2,9 +2,7 @@ use hex_literal::hex;
 
 use rand_core::{RngCore, OsRng};
 
-use curve25519_dalek::constants::ED25519_BASEPOINT_TABLE;
-
-use monero_generators::decompress_point;
+use curve25519_dalek::{constants::ED25519_BASEPOINT_TABLE, edwards::CompressedEdwardsY};
 
 use crate::{
   random_scalar,
@@ -144,8 +142,14 @@ fn featured_vectors() {
       }
       _ => panic!("Unknown network"),
     };
-    let spend = decompress_point(hex::decode(vector.spend).unwrap().try_into().unwrap()).unwrap();
-    let view = decompress_point(hex::decode(vector.view).unwrap().try_into().unwrap()).unwrap();
+    let spend = CompressedEdwardsY::from_slice(&hex::decode(vector.spend).unwrap())
+      .unwrap()
+      .decompress()
+      .unwrap();
+    let view = CompressedEdwardsY::from_slice(&hex::decode(vector.view).unwrap())
+      .unwrap()
+      .decompress()
+      .unwrap();
 
     let addr = MoneroAddress::from_str(network, &vector.address).unwrap();
     assert_eq!(addr.spend, spend);

coins/monero/src/tests/bulletproofs/mod.rs

@@ -1,8 +1,7 @@
 use hex_literal::hex;
 use rand_core::OsRng;
 
-use curve25519_dalek::scalar::Scalar;
-use monero_generators::decompress_point;
+use curve25519_dalek::{scalar::Scalar, edwards::CompressedEdwardsY};
 use multiexp::BatchVerifier;
 
 use crate::{
@@ -15,7 +14,7 @@ mod plus;
 #[test]
 fn bulletproofs_vector() {
   let scalar = |scalar| Scalar::from_canonical_bytes(scalar).unwrap();
-  let point = |point| decompress_point(point).unwrap();
+  let point = |point| CompressedEdwardsY(point).decompress().unwrap();
 
   // Generated from Monero
   assert!(Bulletproofs::Original(OriginalStruct {

coins/monero/src/tests/bulletproofs/plus/weighted_inner_product.rs

@@ -9,6 +9,7 @@ use dalek_ff_group::{Scalar, EdwardsPoint};
 use crate::ringct::bulletproofs::plus::{
   ScalarVector, PointVector, GeneratorsList, Generators,
   weighted_inner_product::{WipStatement, WipWitness},
+  weighted_inner_product,
 };
 
 #[test]
@@ -67,7 +68,7 @@ fn test_weighted_inner_product() {
     #[allow(non_snake_case)]
     let P = g_bold.multiexp(&a) +
       h_bold.multiexp(&b) +
-      (g * a.clone().weighted_inner_product(&b, &y_vec)) +
+      (g * weighted_inner_product(&a, &b, &y_vec)) +
       (h * alpha);
 
     let statement = WipStatement::new(generators, P, y);

coins/monero/src/tests/clsag.rs

@@ -57,7 +57,7 @@ fn clsag() {
     }
 
     let image = generate_key_image(&secrets.0);
-    let (mut clsag, pseudo_out) = Clsag::sign(
+    let (clsag, pseudo_out) = Clsag::sign(
       &mut OsRng,
       vec![(
         secrets.0,
@@ -76,12 +76,7 @@ fn clsag() {
       msg,
     )
     .swap_remove(0);
-
     clsag.verify(&ring, &image, &pseudo_out, &msg).unwrap();
-
-    // make sure verification fails if we throw a random `c1` at it.
-    clsag.c1 = random_scalar(&mut OsRng);
-    assert!(clsag.verify(&ring, &image, &pseudo_out, &msg).is_err());
   }
 }
 

coins/monero/src/tests/extra.rs

@@ -1,158 +0,0 @@
-use crate::{
-  wallet::{ExtraField, Extra, extra::MAX_TX_EXTRA_PADDING_COUNT},
-  serialize::write_varint,
-};
-
-use curve25519_dalek::edwards::{EdwardsPoint, CompressedEdwardsY};
-
-// Borrowed tests from
-// https://github.com/monero-project/monero/blob/ac02af92867590ca80b2779a7bbeafa99ff94dcb/
-//   tests/unit_tests/test_tx_utils.cpp
-
-const PUB_KEY_BYTES: [u8; 33] = [
-  1, 30, 208, 98, 162, 133, 64, 85, 83, 112, 91, 188, 89, 211, 24, 131, 39, 154, 22, 228, 80, 63,
-  198, 141, 173, 111, 244, 183, 4, 149, 186, 140, 230,
-];
-
-fn pub_key() -> EdwardsPoint {
-  CompressedEdwardsY(PUB_KEY_BYTES[1 .. PUB_KEY_BYTES.len()].try_into().expect("invalid pub key"))
-    .decompress()
-    .unwrap()
-}
-
-fn test_write_buf(extra: &Extra, buf: &[u8]) {
-  let mut w: Vec<u8> = vec![];
-  Extra::write(extra, &mut w).unwrap();
-  assert_eq!(buf, w);
-}
-
-#[test]
-fn empty_extra() {
-  let buf: Vec<u8> = vec![];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert!(extra.0.is_empty());
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn padding_only_size_1() {
-  let buf: Vec<u8> = vec![0];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::Padding(1)]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn padding_only_size_2() {
-  let buf: Vec<u8> = vec![0, 0];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::Padding(2)]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn padding_only_max_size() {
-  let buf: Vec<u8> = vec![0; MAX_TX_EXTRA_PADDING_COUNT];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::Padding(MAX_TX_EXTRA_PADDING_COUNT)]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn padding_only_exceed_max_size() {
-  let buf: Vec<u8> = vec![0; MAX_TX_EXTRA_PADDING_COUNT + 1];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert!(extra.0.is_empty());
-}
-
-#[test]
-fn invalid_padding_only() {
-  let buf: Vec<u8> = vec![0, 42];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert!(extra.0.is_empty());
-}
-
-#[test]
-fn pub_key_only() {
-  let buf: Vec<u8> = PUB_KEY_BYTES.to_vec();
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::PublicKey(pub_key())]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn extra_nonce_only() {
-  let buf: Vec<u8> = vec![2, 1, 42];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::Nonce(vec![42])]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn extra_nonce_only_wrong_size() {
-  let mut buf: Vec<u8> = vec![0; 20];
-  buf[0] = 2;
-  buf[1] = 255;
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert!(extra.0.is_empty());
-}
-
-#[test]
-fn pub_key_and_padding() {
-  let mut buf: Vec<u8> = PUB_KEY_BYTES.to_vec();
-  buf.extend([
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-  ]);
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::PublicKey(pub_key()), ExtraField::Padding(76)]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn pub_key_and_invalid_padding() {
-  let mut buf: Vec<u8> = PUB_KEY_BYTES.to_vec();
-  buf.extend([0, 1]);
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::PublicKey(pub_key())]);
-}
-
-#[test]
-fn extra_mysterious_minergate_only() {
-  let buf: Vec<u8> = vec![222, 1, 42];
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::MysteriousMinergate(vec![42])]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn extra_mysterious_minergate_only_large() {
-  let mut buf: Vec<u8> = vec![222];
-  write_varint(&512u64, &mut buf).unwrap();
-  buf.extend_from_slice(&vec![0; 512]);
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(extra.0, vec![ExtraField::MysteriousMinergate(vec![0; 512])]);
-  test_write_buf(&extra, &buf);
-}
-
-#[test]
-fn extra_mysterious_minergate_only_wrong_size() {
-  let mut buf: Vec<u8> = vec![0; 20];
-  buf[0] = 222;
-  buf[1] = 255;
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert!(extra.0.is_empty());
-}
-
-#[test]
-fn extra_mysterious_minergate_and_pub_key() {
-  let mut buf: Vec<u8> = vec![222, 1, 42];
-  buf.extend(PUB_KEY_BYTES.to_vec());
-  let extra = Extra::read::<&[u8]>(&mut buf.as_ref()).unwrap();
-  assert_eq!(
-    extra.0,
-    vec![ExtraField::MysteriousMinergate(vec![42]), ExtraField::PublicKey(pub_key())]
-  );
-  test_write_buf(&extra, &buf);
-}

coins/monero/src/tests/mod.rs

@@ -3,4 +3,3 @@ mod clsag;
 mod bulletproofs;
 mod address;
 mod seed;
-mod extra;

coins/monero/src/tests/seed.rs

@@ -7,7 +7,7 @@ use curve25519_dalek::scalar::Scalar;
 use crate::{
   hash,
   wallet::seed::{
-    Seed, SeedType, SeedError,
+    Seed, SeedType,
     classic::{self, trim_by_lang},
     polyseed,
   },
@@ -137,53 +137,6 @@ fn test_classic_seed() {
       spend: "647f4765b66b636ff07170ab6280a9a6804dfbaf19db2ad37d23be024a18730b".into(),
       view: "045da65316a906a8c30046053119c18020b07a7a3a6ef5c01ab2a8755416bd02".into(),
     },
-    // The following seeds require the language specification in order to calculate
-    // a single valid checksum
-    Vector {
-      language: classic::Language::Spanish,
-      seed: "pluma laico atraer pintor peor cerca balde buscar \
-               lancha batir nulo reloj resto gemelo nevera poder columna gol \
-               oveja latir amplio bolero feliz fuerza nevera"
-        .into(),
-      spend: "30303983fc8d215dd020cc6b8223793318d55c466a86e4390954f373fdc7200a".into(),
-      view: "97c649143f3c147ba59aa5506cc09c7992c5c219bb26964442142bf97980800e".into(),
-    },
-    Vector {
-      language: classic::Language::Spanish,
-      seed: "pluma pluma pluma pluma pluma pluma pluma pluma \
-               pluma pluma pluma pluma pluma pluma pluma pluma \
-               pluma pluma pluma pluma pluma pluma pluma pluma pluma"
-        .into(),
-      spend: "b4050000b4050000b4050000b4050000b4050000b4050000b4050000b4050000".into(),
-      view: "d73534f7912b395eb70ef911791a2814eb6df7ce56528eaaa83ff2b72d9f5e0f".into(),
-    },
-    Vector {
-      language: classic::Language::English,
-      seed: "plus plus plus plus plus plus plus plus \
-               plus plus plus plus plus plus plus plus \
-               plus plus plus plus plus plus plus plus plus"
-        .into(),
-      spend: "3b0400003b0400003b0400003b0400003b0400003b0400003b0400003b040000".into(),
-      view: "43a8a7715eed11eff145a2024ddcc39740255156da7bbd736ee66a0838053a02".into(),
-    },
-    Vector {
-      language: classic::Language::Spanish,
-      seed: "audio audio audio audio audio audio audio audio \
-               audio audio audio audio audio audio audio audio \
-               audio audio audio audio audio audio audio audio audio"
-        .into(),
-      spend: "ba000000ba000000ba000000ba000000ba000000ba000000ba000000ba000000".into(),
-      view: "1437256da2c85d029b293d8c6b1d625d9374969301869b12f37186e3f906c708".into(),
-    },
-    Vector {
-      language: classic::Language::English,
-      seed: "audio audio audio audio audio audio audio audio \
-               audio audio audio audio audio audio audio audio \
-               audio audio audio audio audio audio audio audio audio"
-        .into(),
-      spend: "7900000079000000790000007900000079000000790000007900000079000000".into(),
-      view: "20bec797ab96780ae6a045dd816676ca7ed1d7c6773f7022d03ad234b581d600".into(),
-    },
   ];
 
   for vector in vectors {
@@ -197,15 +150,15 @@ fn test_classic_seed() {
 
     // Test against Monero
     {
-      println!("{}. language: {:?}, seed: {}", line!(), vector.language, vector.seed.clone());
-      let seed =
-        Seed::from_string(SeedType::Classic(vector.language), Zeroizing::new(vector.seed.clone()))
-          .unwrap();
+      let seed = Seed::from_string(Zeroizing::new(vector.seed.clone())).unwrap();
       let trim = trim_seed(&vector.seed);
-      assert_eq!(
-        seed,
-        Seed::from_string(SeedType::Classic(vector.language), Zeroizing::new(trim)).unwrap()
+      println!(
+        "{}. seed: {}, entropy: {:?}, trim: {trim}",
+        line!(),
+        *seed.to_string(),
+        *seed.entropy()
       );
+      assert_eq!(seed, Seed::from_string(Zeroizing::new(trim)).unwrap());
 
       let spend: [u8; 32] = hex::decode(vector.spend).unwrap().try_into().unwrap();
       // For classical seeds, Monero directly uses the entropy as a spend key
@@ -231,20 +184,19 @@ fn test_classic_seed() {
     // Test against ourselves
     {
       let seed = Seed::new(&mut OsRng, SeedType::Classic(vector.language));
-      println!("{}. seed: {}", line!(), *seed.to_string());
       let trim = trim_seed(&seed.to_string());
-      assert_eq!(
-        seed,
-        Seed::from_string(SeedType::Classic(vector.language), Zeroizing::new(trim)).unwrap()
+      println!(
+        "{}. seed: {}, entropy: {:?}, trim: {trim}",
+        line!(),
+        *seed.to_string(),
+        *seed.entropy()
       );
+      assert_eq!(seed, Seed::from_string(Zeroizing::new(trim)).unwrap());
       assert_eq!(
         seed,
         Seed::from_entropy(SeedType::Classic(vector.language), seed.entropy(), None).unwrap()
       );
-      assert_eq!(
-        seed,
-        Seed::from_string(SeedType::Classic(vector.language), seed.to_string()).unwrap()
-      );
+      assert_eq!(seed, Seed::from_string(seed.to_string()).unwrap());
     }
   }
 }
@@ -357,18 +309,6 @@ fn test_polyseed() {
       has_prefix: false,
       has_accent: false,
     },
-    // The following seed requires the language specification in order to calculate
-    // a single valid checksum
-    Vector {
-      language: polyseed::Language::Spanish,
-      seed: "impo sort usua cabi venu nobl oliv clim \
-        cont barr marc auto prod vaca torn fati"
-        .into(),
-      entropy: "dbfce25fe09b68a340e01c62417eeef43ad51800000000000000000000000000".into(),
-      birthday: 1701511650,
-      has_prefix: true,
-      has_accent: true,
-    },
   ];
 
   for vector in vectors {
@@ -410,32 +350,31 @@ fn test_polyseed() {
     };
 
     // String -> Seed
-    println!("{}. language: {:?}, seed: {}", line!(), vector.language, vector.seed.clone());
-    let seed =
-      Seed::from_string(SeedType::Polyseed(vector.language), Zeroizing::new(vector.seed.clone()))
-        .unwrap();
+    let seed = Seed::from_string(Zeroizing::new(vector.seed.clone())).unwrap();
     let trim = trim_seed(&vector.seed);
     let add_whitespace = add_whitespace(vector.seed.clone());
     let seed_without_accents = seed_without_accents(&vector.seed);
+    println!(
+      "{}. seed: {}, entropy: {:?}, trim: {}, add_whitespace: {}, seed_without_accents: {}",
+      line!(),
+      *seed.to_string(),
+      *seed.entropy(),
+      trim,
+      add_whitespace,
+      seed_without_accents,
+    );
 
     // Make sure a version with added whitespace still works
-    let whitespaced_seed =
-      Seed::from_string(SeedType::Polyseed(vector.language), Zeroizing::new(add_whitespace))
-        .unwrap();
+    let whitespaced_seed = Seed::from_string(Zeroizing::new(add_whitespace)).unwrap();
     assert_eq!(seed, whitespaced_seed);
     // Check trimmed versions works
     if vector.has_prefix {
-      let trimmed_seed =
-        Seed::from_string(SeedType::Polyseed(vector.language), Zeroizing::new(trim)).unwrap();
+      let trimmed_seed = Seed::from_string(Zeroizing::new(trim)).unwrap();
       assert_eq!(seed, trimmed_seed);
     }
     // Check versions without accents work
     if vector.has_accent {
-      let seed_without_accents = Seed::from_string(
-        SeedType::Polyseed(vector.language),
-        Zeroizing::new(seed_without_accents),
-      )
-      .unwrap();
+      let seed_without_accents = Seed::from_string(Zeroizing::new(seed_without_accents)).unwrap();
       assert_eq!(seed, seed_without_accents);
     }
 
@@ -452,11 +391,8 @@ fn test_polyseed() {
     // Check against ourselves
     {
       let seed = Seed::new(&mut OsRng, SeedType::Polyseed(vector.language));
-      println!("{}. seed: {}", line!(), *seed.to_string());
-      assert_eq!(
-        seed,
-        Seed::from_string(SeedType::Polyseed(vector.language), seed.to_string()).unwrap()
-      );
+      println!("{}. seed: {}, key: {:?}", line!(), *seed.to_string(), *seed.key());
+      assert_eq!(seed, Seed::from_string(seed.to_string()).unwrap());
       assert_eq!(
         seed,
         Seed::from_entropy(
@@ -469,14 +405,3 @@ fn test_polyseed() {
     }
   }
 }
-
-#[test]
-fn test_invalid_polyseed() {
-  // This seed includes unsupported features bits and should error on decode
-  let seed = "include domain claim resemble urban hire lunch bird \
-    crucial fire best wife ring warm ignore model"
-    .into();
-  let res =
-    Seed::from_string(SeedType::Polyseed(polyseed::Language::English), Zeroizing::new(seed));
-  assert_eq!(res, Err(SeedError::UnsupportedFeatures));
-}

coins/monero/src/transaction.rs

@@ -161,9 +161,7 @@ impl Timelock {
 impl PartialOrd for Timelock {
   fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
     match (self, other) {
-      (Timelock::None, Timelock::None) => Some(Ordering::Equal),
       (Timelock::None, _) => Some(Ordering::Less),
-      (_, Timelock::None) => Some(Ordering::Greater),
       (Timelock::Block(a), Timelock::Block(b)) => a.partial_cmp(b),
       (Timelock::Time(a), Timelock::Time(b)) => a.partial_cmp(b),
       _ => None,
@@ -333,11 +331,14 @@ impl Transaction {
       }
     } else if prefix.version == 2 {
       rct_signatures = RctSignatures::read(
-        prefix.inputs.first().map_or(0, |input| match input {
+        &prefix
+          .inputs
+          .iter()
+          .map(|input| match input {
             Input::Gen(_) => 0,
             Input::ToKey { key_offsets, .. } => key_offsets.len(),
-        }),
-        prefix.inputs.len(),
+          })
+          .collect::<Vec<_>>(),
         prefix.outputs.len(),
         r,
       )?;

coins/monero/src/wallet/address.rs

@@ -3,9 +3,7 @@ use std_shims::string::{String, ToString};
 
 use zeroize::Zeroize;
 
-use curve25519_dalek::edwards::EdwardsPoint;
-
-use monero_generators::decompress_point;
+use curve25519_dalek::edwards::{EdwardsPoint, CompressedEdwardsY};
 
 use base58_monero::base58::{encode_check, decode_check};
 
@@ -242,10 +240,12 @@ impl<B: AddressBytes> Address<B> {
     }
 
     let mut meta = AddressMeta::from_byte(raw[0])?;
-    let spend =
-      decompress_point(raw[1 .. 33].try_into().unwrap()).ok_or(AddressError::InvalidKey)?;
-    let view =
-      decompress_point(raw[33 .. 65].try_into().unwrap()).ok_or(AddressError::InvalidKey)?;
+    let spend = CompressedEdwardsY(raw[1 .. 33].try_into().unwrap())
+      .decompress()
+      .ok_or(AddressError::InvalidKey)?;
+    let view = CompressedEdwardsY(raw[33 .. 65].try_into().unwrap())
+      .decompress()
+      .ok_or(AddressError::InvalidKey)?;
     let mut read = 65;
 
     if matches!(meta.kind, AddressType::Featured { .. }) {

coins/monero/src/wallet/decoys.rs

@@ -21,13 +21,15 @@ use crate::{
   serialize::varint_len,
   wallet::SpendableOutput,
   rpc::{RpcError, RpcConnection, Rpc},
-  DEFAULT_LOCK_WINDOW, COINBASE_LOCK_WINDOW, BLOCK_TIME,
 };
 
+const LOCK_WINDOW: usize = 10;
+const MATURITY: u64 = 60;
 const RECENT_WINDOW: usize = 15;
+const BLOCK_TIME: usize = 120;
 const BLOCKS_PER_YEAR: usize = 365 * 24 * 60 * 60 / BLOCK_TIME;
 #[allow(clippy::cast_precision_loss)]
-const TIP_APPLICATION: f64 = (DEFAULT_LOCK_WINDOW * BLOCK_TIME) as f64;
+const TIP_APPLICATION: f64 = (LOCK_WINDOW * BLOCK_TIME) as f64;
 
 // TODO: Resolve safety of this in case a reorg occurs/the network changes
 // TODO: Update this when scanning a block, as possible
@@ -50,10 +52,8 @@ async fn select_n<'a, R: RngCore + CryptoRng, RPC: RpcConnection>(
   real: &[u64],
   used: &mut HashSet<u64>,
   count: usize,
-  fingerprintable_canonical: bool,
 ) -> Result<Vec<(u64, [EdwardsPoint; 2])>, RpcError> {
-  // TODO: consider removing this extra RPC and expect the caller to handle it
-  if fingerprintable_canonical && height > rpc.get_height().await? {
+  if height >= rpc.get_height().await? {
     // TODO: Don't use InternalError for the caller's failure
     Err(RpcError::InternalError("decoys being requested from too young blocks"))?;
   }
@@ -64,8 +64,6 @@ async fn select_n<'a, R: RngCore + CryptoRng, RPC: RpcConnection>(
   // Retries on failure. Retries are obvious as decoys, yet should be minimal
   while confirmed.len() != count {
     let remaining = count - confirmed.len();
-    // TODO: over-request candidates in case some are locked to avoid needing
-    // round trips to the daemon (and revealing obvious decoys to the daemon)
     let mut candidates = Vec::with_capacity(remaining);
     while candidates.len() != remaining {
       #[cfg(test)]
@@ -119,14 +117,7 @@ async fn select_n<'a, R: RngCore + CryptoRng, RPC: RpcConnection>(
       }
     }
 
-    // TODO: make sure that the real output is included in the response, and
-    // that mask and key are equal to expected
-    for (i, output) in rpc
-      .get_unlocked_outputs(&candidates, height, fingerprintable_canonical)
-      .await?
-      .iter_mut()
-      .enumerate()
-    {
+    for (i, output) in rpc.get_unlocked_outputs(&candidates, height).await?.iter_mut().enumerate() {
       // Don't include the real spend as a decoy, despite requesting it
       if real_indexes.contains(&i) {
         continue;
@@ -150,14 +141,32 @@ fn offset(ring: &[u64]) -> Vec<u64> {
   res
 }
 
-async fn select_decoys<R: RngCore + CryptoRng, RPC: RpcConnection>(
+/// Decoy data, containing the actual member as well (at index `i`).
+#[derive(Clone, PartialEq, Eq, Debug, Zeroize, ZeroizeOnDrop)]
+pub struct Decoys {
+  pub(crate) i: u8,
+  pub(crate) offsets: Vec<u64>,
+  pub(crate) ring: Vec<[EdwardsPoint; 2]>,
+}
+
+#[allow(clippy::len_without_is_empty)]
+impl Decoys {
+  pub fn fee_weight(offsets: &[u64]) -> usize {
+    varint_len(offsets.len()) + offsets.iter().map(|offset| varint_len(*offset)).sum::<usize>()
+  }
+
+  pub fn len(&self) -> usize {
+    self.offsets.len()
+  }
+
+  /// Select decoys using the same distribution as Monero.
+  pub async fn select<R: RngCore + CryptoRng, RPC: RpcConnection>(
     rng: &mut R,
     rpc: &Rpc<RPC>,
     ring_len: usize,
     height: usize,
     inputs: &[SpendableOutput],
-  fingerprintable_canonical: bool,
-) -> Result<Vec<Decoys>, RpcError> {
+  ) -> Result<Vec<Decoys>, RpcError> {
     #[cfg(feature = "cache-distribution")]
     #[cfg(not(feature = "std"))]
     let mut distribution = DISTRIBUTION().lock();
@@ -178,25 +187,19 @@ async fn select_decoys<R: RngCore + CryptoRng, RPC: RpcConnection>(
       outputs.push((real[real.len() - 1], [input.key(), input.commitment().calculate()]));
     }
 
-  if distribution.len() < height {
-    // TODO: verify distribution elems are strictly increasing
-    let extension =
-      rpc.get_output_distribution(distribution.len(), height.saturating_sub(1)).await?;
+    if distribution.len() <= height {
+      let extension = rpc.get_output_distribution(distribution.len(), height).await?;
       distribution.extend(extension);
     }
     // If asked to use an older height than previously asked, truncate to ensure accuracy
     // Should never happen, yet risks desyncing if it did
-  distribution.truncate(height);
-
-  if distribution.len() < DEFAULT_LOCK_WINDOW {
-    Err(RpcError::InternalError("not enough decoy candidates"))?;
-  }
+    distribution.truncate(height + 1); // height is inclusive, and 0 is a valid height
 
+    let high = distribution[distribution.len() - 1];
     #[allow(clippy::cast_precision_loss)]
     let per_second = {
       let blocks = distribution.len().min(BLOCKS_PER_YEAR);
-    let initial = distribution[distribution.len().saturating_sub(blocks + 1)];
-    let outputs = distribution[distribution.len() - 1].saturating_sub(initial);
+      let outputs = high - distribution[distribution.len().saturating_sub(blocks + 1)];
       (outputs as f64) / ((blocks * BLOCK_TIME) as f64)
     };
 
@@ -206,11 +209,8 @@ async fn select_decoys<R: RngCore + CryptoRng, RPC: RpcConnection>(
     }
 
     // TODO: Create a TX with less than the target amount, as allowed by the protocol
-  let high = distribution[distribution.len() - DEFAULT_LOCK_WINDOW];
-  if high.saturating_sub(COINBASE_LOCK_WINDOW as u64) <
-    u64::try_from(inputs.len() * ring_len).unwrap()
-  {
-    Err(RpcError::InternalError("not enough coinbase candidates"))?;
+    if (high - MATURITY) < u64::try_from(inputs.len() * ring_len).unwrap() {
+      Err(RpcError::InternalError("not enough decoy candidates"))?;
     }
 
     // Select all decoys for this transaction, assuming we generate a sane transaction
@@ -226,7 +226,6 @@ async fn select_decoys<R: RngCore + CryptoRng, RPC: RpcConnection>(
       &real,
       &mut used,
       inputs.len() * decoy_count,
-    fingerprintable_canonical,
     )
     .await?;
     real.zeroize();
@@ -276,7 +275,6 @@ async fn select_decoys<R: RngCore + CryptoRng, RPC: RpcConnection>(
               &[],
               &mut used,
               ring_len - ring.len(),
-            fingerprintable_canonical,
             )
             .await?,
           );
@@ -296,61 +294,5 @@ async fn select_decoys<R: RngCore + CryptoRng, RPC: RpcConnection>(
     }
 
     Ok(res)
-}
-
-/// Decoy data, containing the actual member as well (at index `i`).
-#[derive(Clone, PartialEq, Eq, Debug, Zeroize, ZeroizeOnDrop)]
-pub struct Decoys {
-  pub(crate) i: u8,
-  pub(crate) offsets: Vec<u64>,
-  pub(crate) ring: Vec<[EdwardsPoint; 2]>,
-}
-
-#[allow(clippy::len_without_is_empty)]
-impl Decoys {
-  pub fn fee_weight(offsets: &[u64]) -> usize {
-    varint_len(offsets.len()) + offsets.iter().map(|offset| varint_len(*offset)).sum::<usize>()
-  }
-
-  pub fn len(&self) -> usize {
-    self.offsets.len()
-  }
-
-  pub fn indexes(&self) -> Vec<u64> {
-    let mut res = vec![self.offsets[0]; self.len()];
-    for m in 1 .. res.len() {
-      res[m] = res[m - 1] + self.offsets[m];
-    }
-    res
-  }
-
-  /// Select decoys using the same distribution as Monero. Relies on the monerod RPC
-  /// response for an output's unlocked status, minimizing trips to the daemon.
-  pub async fn select<R: RngCore + CryptoRng, RPC: RpcConnection>(
-    rng: &mut R,
-    rpc: &Rpc<RPC>,
-    ring_len: usize,
-    height: usize,
-    inputs: &[SpendableOutput],
-  ) -> Result<Vec<Decoys>, RpcError> {
-    select_decoys(rng, rpc, ring_len, height, inputs, false).await
-  }
-
-  /// If no reorg has occurred and an honest RPC, any caller who passes the same height to this
-  /// function will use the same distribution to select decoys. It is fingerprintable
-  /// because a caller using this will not be able to select decoys that are timelocked
-  /// with a timestamp. Any transaction which includes timestamp timelocked decoys in its
-  /// rings could not be constructed using this function.
-  ///
-  /// TODO: upstream change to monerod get_outs RPC to accept a height param for checking
-  /// output's unlocked status and remove all usage of fingerprintable_canonical
-  pub async fn fingerprintable_canonical_select<R: RngCore + CryptoRng, RPC: RpcConnection>(
-    rng: &mut R,
-    rpc: &Rpc<RPC>,
-    ring_len: usize,
-    height: usize,
-    inputs: &[SpendableOutput],
-  ) -> Result<Vec<Decoys>, RpcError> {
-    select_decoys(rng, rpc, ring_len, height, inputs, true).await
   }
 }

coins/monero/src/wallet/extra.rs

@@ -1,7 +1,7 @@
 use core::ops::BitXor;
 use std_shims::{
   vec::Vec,
-  io::{self, Read, BufRead, Write},
+  io::{self, Read, Write},
 };
 
 use zeroize::Zeroize;
@@ -13,7 +13,6 @@ use crate::serialize::{
   write_point, write_vec,
 };
 
-pub const MAX_TX_EXTRA_PADDING_COUNT: usize = 255;
 pub const MAX_TX_EXTRA_NONCE_SIZE: usize = 255;
 
 pub const PAYMENT_ID_MARKER: u8 = 0;
@@ -71,23 +70,15 @@ impl PaymentId {
 // Doesn't bother with padding nor MinerGate
 #[derive(Clone, PartialEq, Eq, Debug, Zeroize)]
 pub enum ExtraField {
-  Padding(usize),
   PublicKey(EdwardsPoint),
   Nonce(Vec<u8>),
   MergeMining(usize, [u8; 32]),
   PublicKeys(Vec<EdwardsPoint>),
-  MysteriousMinergate(Vec<u8>),
 }
 
 impl ExtraField {
   pub fn write<W: Write>(&self, w: &mut W) -> io::Result<()> {
     match self {
-      ExtraField::Padding(size) => {
-        w.write_all(&[0])?;
-        for _ in 1 .. *size {
-          write_byte(&0u8, w)?;
-        }
-      }
       ExtraField::PublicKey(key) => {
         w.write_all(&[1])?;
         w.write_all(&key.compress().to_bytes())?;
@@ -105,39 +96,12 @@ impl ExtraField {
         w.write_all(&[4])?;
         write_vec(write_point, keys, w)?;
       }
-      ExtraField::MysteriousMinergate(data) => {
-        w.write_all(&[0xDE])?;
-        write_vec(write_byte, data, w)?;
-      }
     }
     Ok(())
   }
 
-  pub fn read<R: BufRead>(r: &mut R) -> io::Result<ExtraField> {
+  pub fn read<R: Read>(r: &mut R) -> io::Result<ExtraField> {
     Ok(match read_byte(r)? {
-      0 => ExtraField::Padding({
-        // Read until either non-zero, max padding count, or end of buffer
-        let mut size: usize = 1;
-        loop {
-          let buf = r.fill_buf()?;
-          let mut n_consume = 0;
-          for v in buf {
-            if *v != 0u8 {
-              Err(io::Error::other("non-zero value after padding"))?
-            }
-            n_consume += 1;
-            size += 1;
-            if size > MAX_TX_EXTRA_PADDING_COUNT {
-              Err(io::Error::other("padding exceeded max count"))?
-            }
-          }
-          if n_consume == 0 {
-            break;
-          }
-          r.consume(n_consume);
-        }
-        size
-      }),
       1 => ExtraField::PublicKey(read_point(r)?),
       2 => ExtraField::Nonce({
         let nonce = read_vec(read_byte, r)?;
@@ -148,21 +112,20 @@ impl ExtraField {
       }),
       3 => ExtraField::MergeMining(read_varint(r)?, read_bytes(r)?),
       4 => ExtraField::PublicKeys(read_vec(read_point, r)?),
-      0xDE => ExtraField::MysteriousMinergate(read_vec(read_byte, r)?),
       _ => Err(io::Error::other("unknown extra field"))?,
     })
   }
 }
 
 #[derive(Clone, PartialEq, Eq, Debug, Zeroize)]
-pub struct Extra(pub(crate) Vec<ExtraField>);
+pub struct Extra(Vec<ExtraField>);
 impl Extra {
-  pub fn keys(&self) -> Option<(Vec<EdwardsPoint>, Option<Vec<EdwardsPoint>>)> {
-    let mut keys = vec![];
+  pub fn keys(&self) -> Option<(EdwardsPoint, Option<Vec<EdwardsPoint>>)> {
+    let mut key = None;
     let mut additional = None;
     for field in &self.0 {
       match field.clone() {
-        ExtraField::PublicKey(this_key) => keys.push(this_key),
+        ExtraField::PublicKey(this_key) => key = key.or(Some(this_key)),
         ExtraField::PublicKeys(these_additional) => {
           additional = additional.or(Some(these_additional))
         }
@@ -170,11 +133,7 @@ impl Extra {
       }
     }
     // Don't return any keys if this was non-standard and didn't include the primary key
-    if keys.is_empty() {
-      None
-    } else {
-      Some((keys, additional))
-    }
+    key.map(|key| (key, additional))
   }
 
   pub fn payment_id(&self) -> Option<PaymentId> {
@@ -241,7 +200,7 @@ impl Extra {
     buf
   }
 
-  pub fn read<R: BufRead>(r: &mut R) -> io::Result<Extra> {
+  pub fn read<R: Read>(r: &mut R) -> io::Result<Extra> {
     let mut res = Extra(vec![]);
     let mut field;
     while {

coins/monero/src/wallet/scan.rs

@@ -9,8 +9,6 @@ use zeroize::{Zeroize, ZeroizeOnDrop};
 
 use curve25519_dalek::{constants::ED25519_BASEPOINT_TABLE, scalar::Scalar, edwards::EdwardsPoint};
 
-use monero_generators::decompress_point;
-
 use crate::{
   Commitment,
   serialize::{read_byte, read_u32, read_u64, read_bytes, read_scalar, read_point, read_raw_vec},
@@ -101,18 +99,10 @@ pub struct Metadata {
   /// The subaddress this output was sent to.
   pub subaddress: Option<SubaddressIndex>,
   /// The payment ID included with this output.
-  /// There are 2 circumstances in which the reference wallet2 ignores the payment ID
-  /// but the payment ID will be returned here anyway:
-  ///
-  /// 1) If the payment ID is tied to an output received by a subaddress account
-  /// that spent Monero in the transaction (the received output is considered
-  /// "change" and is not considered a "payment" in this case). If there are multiple
-  /// spending subaddress accounts in a transaction, the highest index spent key image
-  /// is used to determine the spending subaddress account.
-  ///
-  /// 2) If the payment ID is the unencrypted variant and the block's hf version is
-  /// v12 or higher (https://github.com/serai-dex/serai/issues/512)
-  pub payment_id: Option<PaymentId>,
+  /// This will be gibberish if the payment ID wasn't intended for the recipient or wasn't included.
+  // Could be an Option, as extra doesn't necessarily have a payment ID, yet all Monero TXs should
+  // have this making it simplest for it to be as-is.
+  pub payment_id: [u8; 8],
   /// Arbitrary data encoded in TX extra.
   pub arbitrary_data: Vec<Vec<u8>>,
 }
@@ -122,7 +112,7 @@ impl core::fmt::Debug for Metadata {
     fmt
       .debug_struct("Metadata")
       .field("subaddress", &self.subaddress)
-      .field("payment_id", &self.payment_id)
+      .field("payment_id", &hex::encode(self.payment_id))
       .field("arbitrary_data", &self.arbitrary_data.iter().map(hex::encode).collect::<Vec<_>>())
       .finish()
   }
@@ -137,13 +127,7 @@ impl Metadata {
     } else {
       w.write_all(&[0])?;
     }
-
-    if let Some(payment_id) = self.payment_id {
-      w.write_all(&[1])?;
-      payment_id.write(w)?;
-    } else {
-      w.write_all(&[0])?;
-    }
+    w.write_all(&self.payment_id)?;
 
     w.write_all(&u32::try_from(self.arbitrary_data.len()).unwrap().to_le_bytes())?;
     for part in &self.arbitrary_data {
@@ -171,7 +155,7 @@ impl Metadata {
 
     Ok(Metadata {
       subaddress,
-      payment_id: if read_byte(r)? == 1 { PaymentId::read(r).ok() } else { None },
+      payment_id: read_bytes(r)?,
       arbitrary_data: {
         let mut data = vec![];
         for _ in 0 .. read_u32(r)? {
@@ -350,7 +334,7 @@ impl Scanner {
       return Timelocked(tx.prefix.timelock, vec![]);
     };
 
-    let Some((tx_keys, additional)) = extra.keys() else {
+    let Some((tx_key, additional)) = extra.keys() else {
       return Timelocked(tx.prefix.timelock, vec![]);
     };
 
@@ -365,15 +349,13 @@ impl Scanner {
         }
       }
 
-      let output_key = decompress_point(output.key.to_bytes());
+      let output_key = output.key.decompress();
       if output_key.is_none() {
         continue;
       }
       let output_key = output_key.unwrap();
 
-      let additional = additional.as_ref().map(|additional| additional.get(o));
-
-      for key in tx_keys.iter().map(|key| Some(Some(key))).chain(core::iter::once(additional)) {
+      for key in [Some(Some(&tx_key)), additional.as_ref().map(|additional| additional.get(o))] {
         let key = match key {
           Some(Some(key)) => key,
           Some(None) => {
@@ -381,6 +363,7 @@ impl Scanner {
             // https://github.com/monero-project/monero/
             //   blob/04a1e2875d6e35e27bb21497988a6c822d319c28/
             //   src/cryptonote_basic/cryptonote_format_utils.cpp#L1062
+            // TODO: Should this return? Where does Monero set the trap handler for this exception?
             continue;
           }
           None => {
@@ -393,7 +376,12 @@ impl Scanner {
           o,
         );
 
-        let payment_id = payment_id.map(|id| id ^ payment_id_xor);
+        let payment_id =
+          if let Some(PaymentId::Encrypted(id)) = payment_id.map(|id| id ^ payment_id_xor) {
+            id
+          } else {
+            payment_id_xor
+          };
 
         if let Some(actual_view_tag) = output.view_tag {
           if actual_view_tag != view_tag {

coins/monero/src/wallet/seed/classic.rs

@@ -16,7 +16,7 @@ use crate::{random_scalar, wallet::seed::SeedError};
 pub(crate) const CLASSIC_SEED_LENGTH: usize = 24;
 pub(crate) const CLASSIC_SEED_LENGTH_WITH_CHECKSUM: usize = 25;
 
-#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash, Zeroize)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash)]
 pub enum Language {
   Chinese,
   English,
@@ -184,58 +184,63 @@ fn key_to_seed(lang: Language, key: Zeroizing<Scalar>) -> ClassicSeed {
     }
     *res += word;
   }
-  ClassicSeed(lang, res)
+  ClassicSeed(res)
 }
 
 // Convert a seed to bytes
-pub(crate) fn seed_to_bytes(lang: Language, words: &str) -> Result<Zeroizing<[u8; 32]>, SeedError> {
+pub(crate) fn seed_to_bytes(words: &str) -> Result<(Language, Zeroizing<[u8; 32]>), SeedError> {
   // get seed words
   let words = words.split_whitespace().map(|w| Zeroizing::new(w.to_string())).collect::<Vec<_>>();
   if (words.len() != CLASSIC_SEED_LENGTH) && (words.len() != CLASSIC_SEED_LENGTH_WITH_CHECKSUM) {
     panic!("invalid seed passed to seed_to_bytes");
   }
 
-  let has_checksum = words.len() == CLASSIC_SEED_LENGTH_WITH_CHECKSUM;
-  if has_checksum && lang == Language::EnglishOld {
-    Err(SeedError::EnglishOldWithChecksum)?;
-  }
-
-  // Validate words are in the language word list
-  let lang_word_list: &WordList = &LANGUAGES()[&lang];
-  let matched_indices = (|| {
+  // find the language
+  let (matched_indices, lang_name, lang) = (|| {
     let has_checksum = words.len() == CLASSIC_SEED_LENGTH_WITH_CHECKSUM;
     let mut matched_indices = Zeroizing::new(vec![]);
 
+    // Iterate through all the languages
+    'language: for (lang_name, lang) in LANGUAGES() {
+      matched_indices.zeroize();
+      matched_indices.clear();
+
       // Iterate through all the words and see if they're all present
       for word in &words {
-      let trimmed = trim(word, lang_word_list.unique_prefix_length);
+        let trimmed = trim(word, lang.unique_prefix_length);
         let word = if has_checksum { &trimmed } else { word };
 
         if let Some(index) = if has_checksum {
-        lang_word_list.trimmed_word_map.get(word.deref())
+          lang.trimmed_word_map.get(word.deref())
         } else {
-        lang_word_list.word_map.get(&word.as_str())
+          lang.word_map.get(&word.as_str())
         } {
           matched_indices.push(*index);
         } else {
-        Err(SeedError::InvalidSeed)?;
+          continue 'language;
         }
       }
 
       if has_checksum {
+        if lang_name == &Language::EnglishOld {
+          Err(SeedError::EnglishOldWithChecksum)?;
+        }
+
         // exclude the last word when calculating a checksum.
         let last_word = words.last().unwrap().clone();
-      let checksum = words[checksum_index(&words[.. words.len() - 1], lang_word_list)].clone();
+        let checksum = words[checksum_index(&words[.. words.len() - 1], lang)].clone();
 
         // check the trimmed checksum and trimmed last word line up
-      if trim(&checksum, lang_word_list.unique_prefix_length) !=
-        trim(&last_word, lang_word_list.unique_prefix_length)
+        if trim(&checksum, lang.unique_prefix_length) != trim(&last_word, lang.unique_prefix_length)
         {
           Err(SeedError::InvalidChecksum)?;
         }
       }
 
-    Ok(matched_indices)
+      return Ok((matched_indices, lang_name, lang));
+    }
+
+    Err(SeedError::UnknownLanguage)?
   })()?;
 
   // convert to bytes
@@ -249,17 +254,16 @@ pub(crate) fn seed_to_bytes(lang: Language, words: &str) -> Result<Zeroizing<[u8
     indices[3] = matched_indices[i3 + 2];
 
     let inner = |i| {
-      let mut base = (lang_word_list.word_list.len() - indices[i] + indices[i + 1]) %
-        lang_word_list.word_list.len();
+      let mut base = (lang.word_list.len() - indices[i] + indices[i + 1]) % lang.word_list.len();
       // Shift the index over
       for _ in 0 .. i {
-        base *= lang_word_list.word_list.len();
+        base *= lang.word_list.len();
       }
       base
     };
     // set the last index
     indices[0] = indices[1] + inner(1) + inner(2);
-    if (indices[0] % lang_word_list.word_list.len()) != indices[1] {
+    if (indices[0] % lang.word_list.len()) != indices[1] {
       Err(SeedError::InvalidSeed)?;
     }
 
@@ -269,19 +273,19 @@ pub(crate) fn seed_to_bytes(lang: Language, words: &str) -> Result<Zeroizing<[u8
     bytes.zeroize();
   }
 
-  Ok(res)
+  Ok((*lang_name, res))
 }
 
 #[derive(Clone, PartialEq, Eq, Zeroize)]
-pub struct ClassicSeed(Language, Zeroizing<String>);
+pub struct ClassicSeed(Zeroizing<String>);
 impl ClassicSeed {
   pub(crate) fn new<R: RngCore + CryptoRng>(rng: &mut R, lang: Language) -> ClassicSeed {
     key_to_seed(lang, Zeroizing::new(random_scalar(rng)))
   }
 
   #[allow(clippy::needless_pass_by_value)]
-  pub fn from_string(lang: Language, words: Zeroizing<String>) -> Result<ClassicSeed, SeedError> {
-    let entropy = seed_to_bytes(lang, &words)?;
+  pub fn from_string(words: Zeroizing<String>) -> Result<ClassicSeed, SeedError> {
+    let (lang, entropy) = seed_to_bytes(&words)?;
 
     // Make sure this is a valid scalar
     let scalar = Scalar::from_canonical_bytes(*entropy);
@@ -302,10 +306,10 @@ impl ClassicSeed {
   }
 
   pub(crate) fn to_string(&self) -> Zeroizing<String> {
-    self.1.clone()
+    self.0.clone()
   }
 
   pub(crate) fn entropy(&self) -> Zeroizing<[u8; 32]> {
-    seed_to_bytes(self.0, &self.1).unwrap()
+    seed_to_bytes(&self.0).unwrap().1
   }
 }

coins/monero/src/wallet/seed/mod.rs

@@ -61,23 +61,13 @@ impl Seed {
   }
 
   /// Parse a seed from a `String`.
-  pub fn from_string(seed_type: SeedType, words: Zeroizing<String>) -> Result<Seed, SeedError> {
-    let word_count = words.split_whitespace().count();
-    match seed_type {
-      SeedType::Classic(lang) => {
-        if word_count != CLASSIC_SEED_LENGTH && word_count != CLASSIC_SEED_LENGTH_WITH_CHECKSUM {
-          Err(SeedError::InvalidSeedLength)?
-        } else {
-          ClassicSeed::from_string(lang, words).map(Seed::Classic)
-        }
-      }
-      SeedType::Polyseed(lang) => {
-        if word_count != POLYSEED_LENGTH {
-          Err(SeedError::InvalidSeedLength)?
-        } else {
-          Polyseed::from_string(lang, words).map(Seed::Polyseed)
-        }
+  pub fn from_string(words: Zeroizing<String>) -> Result<Seed, SeedError> {
+    match words.split_whitespace().count() {
+      CLASSIC_SEED_LENGTH | CLASSIC_SEED_LENGTH_WITH_CHECKSUM => {
+        ClassicSeed::from_string(words).map(Seed::Classic)
       }
+      POLYSEED_LENGTH => Polyseed::from_string(words).map(Seed::Polyseed),
+      _ => Err(SeedError::InvalidSeedLength)?,
     }
   }
 

coins/monero/src/wallet/seed/polyseed.rs

@@ -217,31 +217,6 @@ impl Polyseed {
     poly
   }
 
-  fn from_internal(
-    language: Language,
-    masked_features: u8,
-    encoded_birthday: u16,
-    entropy: Zeroizing<[u8; 32]>,
-  ) -> Result<Polyseed, SeedError> {
-    if !polyseed_features_supported(masked_features) {
-      Err(SeedError::UnsupportedFeatures)?;
-    }
-
-    if !valid_entropy(&entropy) {
-      Err(SeedError::InvalidEntropy)?;
-    }
-
-    let mut res = Polyseed {
-      language,
-      birthday: encoded_birthday,
-      features: masked_features,
-      entropy,
-      checksum: 0,
-    };
-    res.checksum = poly_eval(&res.to_poly());
-    Ok(res)
-  }
-
   /// Create a new `Polyseed` with specific internals.
   ///
   /// `birthday` is defined in seconds since the Unix epoch.
@@ -251,7 +226,20 @@ impl Polyseed {
     birthday: u64,
     entropy: Zeroizing<[u8; 32]>,
   ) -> Result<Polyseed, SeedError> {
-    Self::from_internal(language, user_features(features), birthday_encode(birthday), entropy)
+    let features = user_features(features);
+    if !polyseed_features_supported(features) {
+      Err(SeedError::UnsupportedFeatures)?;
+    }
+
+    let birthday = birthday_encode(birthday);
+
+    if !valid_entropy(&entropy) {
+      Err(SeedError::InvalidEntropy)?;
+    }
+
+    let mut res = Polyseed { language, birthday, features, entropy, checksum: 0 };
+    res.checksum = poly_eval(&res.to_poly());
+    Ok(res)
   }
 
   /// Create a new `Polyseed`.
@@ -275,12 +263,11 @@ impl Polyseed {
 
   /// Create a new `Polyseed` from a String.
   #[allow(clippy::needless_pass_by_value)]
-  pub fn from_string(lang: Language, seed: Zeroizing<String>) -> Result<Polyseed, SeedError> {
+  pub fn from_string(seed: Zeroizing<String>) -> Result<Polyseed, SeedError> {
     // Decode the seed into its polynomial coefficients
     let mut poly = [0; POLYSEED_LENGTH];
-
-    // Validate words are in the lang word list
-    let lang_word_list: &WordList = &LANGUAGES()[&lang];
+    let lang = (|| {
+      'language: for (name, lang) in LANGUAGES() {
         for (i, word) in seed.split_whitespace().enumerate() {
           // Find the word's index
           fn check_if_matches<S: AsRef<str>, I: Iterator<Item = S>>(
@@ -315,23 +302,29 @@ impl Polyseed {
             }
           }
 
-      let Some(coeff) = (if lang_word_list.has_accent {
+          let Some(coeff) = (if lang.has_accent {
             let ascii = |word: &str| word.chars().filter(char::is_ascii).collect::<String>();
             check_if_matches(
-          lang_word_list.has_prefix,
-          lang_word_list.words.iter().map(|lang_word| ascii(lang_word)),
+              lang.has_prefix,
+              lang.words.iter().map(|lang_word| ascii(lang_word)),
               &ascii(word),
             )
           } else {
-        check_if_matches(lang_word_list.has_prefix, lang_word_list.words.iter(), word)
+            check_if_matches(lang.has_prefix, lang.words.iter(), word)
           }) else {
-        Err(SeedError::InvalidSeed)?
+            continue 'language;
           };
 
           // WordList asserts the word list length is less than u16::MAX
           poly[i] = u16::try_from(coeff).expect("coeff exceeded u16");
         }
 
+        return Ok(*name);
+      }
+
+      Err(SeedError::UnknownLanguage)
+    })()?;
+
     // xor out the coin
     poly[POLY_NUM_CHECK_DIGITS] ^= COIN;
 
@@ -382,7 +375,7 @@ impl Polyseed {
     let features =
       u8::try_from(extra >> DATE_BITS).expect("couldn't convert extra >> DATE_BITS to u8");
 
-    let res = Self::from_internal(lang, features, birthday, entropy);
+    let res = Polyseed::from(lang, features, birthday_decode(birthday), entropy);
     if let Ok(res) = res.as_ref() {
       debug_assert_eq!(res.checksum, checksum);
     }

coins/monero/src/wallet/send/mod.rs

@@ -69,23 +69,16 @@ impl SendOutput {
   #[allow(non_snake_case)]
   fn internal(
     unique: [u8; 32],
-    output: (usize, (MoneroAddress, u64), bool),
+    output: (usize, (MoneroAddress, u64)),
     ecdh: EdwardsPoint,
     R: EdwardsPoint,
   ) -> (SendOutput, Option<[u8; 8]>) {
     let o = output.0;
-    let need_dummy_payment_id = output.2;
     let output = output.1;
 
     let (view_tag, shared_key, payment_id_xor) =
       shared_key(Some(unique).filter(|_| output.0.is_guaranteed()), ecdh, o);
 
-    let payment_id = output
-      .0
-      .payment_id()
-      .or(if need_dummy_payment_id { Some([0u8; 8]) } else { None })
-      .map(|id| (u64::from_le_bytes(id) ^ u64::from_le_bytes(payment_id_xor)).to_le_bytes());
-
     (
       SendOutput {
         R,
@@ -94,14 +87,17 @@ impl SendOutput {
         commitment: Commitment::new(commitment_mask(shared_key), output.1),
         amount: amount_encryption(output.1, shared_key),
       },
-      payment_id,
+      output
+        .0
+        .payment_id()
+        .map(|id| (u64::from_le_bytes(id) ^ u64::from_le_bytes(payment_id_xor)).to_le_bytes()),
     )
   }
 
   fn new(
     r: &Zeroizing<Scalar>,
     unique: [u8; 32],
-    output: (usize, (MoneroAddress, u64), bool),
+    output: (usize, (MoneroAddress, u64)),
   ) -> (SendOutput, Option<[u8; 8]>) {
     let address = output.1 .0;
     SendOutput::internal(
@@ -119,7 +115,7 @@ impl SendOutput {
   fn change(
     ecdh: EdwardsPoint,
     unique: [u8; 32],
-    output: (usize, (MoneroAddress, u64), bool),
+    output: (usize, (MoneroAddress, u64)),
   ) -> (SendOutput, Option<[u8; 8]>) {
     SendOutput::internal(unique, output, ecdh, ED25519_BASEPOINT_POINT)
   }
@@ -274,22 +270,20 @@ impl Fee {
 #[derive(Clone, Copy, PartialEq, Eq, Debug)]
 #[allow(non_camel_case_types)]
 pub enum FeePriority {
-  Unimportant,
-  Normal,
-  Elevated,
-  Priority,
+  Lowest,
+  Low,
+  Medium,
+  High,
   Custom { priority: u32 },
 }
 
-/// https://github.com/monero-project/monero/blob/ac02af92867590ca80b2779a7bbeafa99ff94dcb/
-///   src/simplewallet/simplewallet.cpp#L161
 impl FeePriority {
   pub(crate) fn fee_priority(&self) -> u32 {
     match self {
-      FeePriority::Unimportant => 1,
-      FeePriority::Normal => 2,
-      FeePriority::Elevated => 3,
-      FeePriority::Priority => 4,
+      FeePriority::Lowest => 0,
+      FeePriority::Low => 1,
+      FeePriority::Medium => 2,
+      FeePriority::High => 3,
       FeePriority::Custom { priority, .. } => *priority,
     }
   }
@@ -297,8 +291,8 @@ impl FeePriority {
 
 #[derive(Clone, PartialEq, Eq, Debug, Zeroize)]
 pub(crate) enum InternalPayment {
-  Payment((MoneroAddress, u64), bool),
-  Change((MoneroAddress, u64), Option<Zeroizing<Scalar>>),
+  Payment((MoneroAddress, u64)),
+  Change((MoneroAddress, Option<Zeroizing<Scalar>>), u64),
 }
 
 /// The eventual output of a SignableTransaction.
@@ -358,14 +352,6 @@ impl Change {
 
   /// Create a fingerprintable change output specification which will harm privacy. Only use this
   /// if you know what you're doing.
-  ///
-  /// If the change address is None, there are 2 potential fingerprints:
-  ///
-  /// 1) The change in the tx is shunted to the fee (fingerprintable fee).
-  ///
-  /// 2) If there are 2 outputs in the tx, there would be no payment ID as is the case when the
-  /// reference wallet creates 2 output txs, since monero-serai doesn't know which output
-  /// to tie the dummy payment ID to.
   pub fn fingerprintable(address: Option<MoneroAddress>) -> Change {
     Change { address, view: None }
   }
@@ -376,9 +362,9 @@ fn need_additional(payments: &[InternalPayment]) -> (bool, bool) {
   let subaddresses = payments
     .iter()
     .filter(|payment| match *payment {
-      InternalPayment::Payment(payment, _) => payment.0.is_subaddress(),
-      InternalPayment::Change(change, change_view) => {
-        if change_view.is_some() {
+      InternalPayment::Payment(payment) => payment.0.is_subaddress(),
+      InternalPayment::Change(change, _) => {
+        if change.1.is_some() {
           has_change_view = true;
           // It should not be possible to construct a change specification to a subaddress with a
           // view key
@@ -405,7 +391,7 @@ fn sanity_check_change_payment_quantity(payments: &[InternalPayment], has_change
     payments
       .iter()
       .filter(|payment| match *payment {
-        InternalPayment::Payment(_, _) => false,
+        InternalPayment::Payment(_) => false,
         InternalPayment::Change(_, _) => true,
       })
       .count(),
@@ -477,13 +463,6 @@ impl SignableTransaction {
       Err(TransactionError::NoChange)?;
     }
 
-    // All 2 output txs created by the reference wallet have payment IDs to avoid
-    // fingerprinting integrated addresses. Note: we won't create a dummy payment
-    // ID if we create a 0-change 2-output tx since we don't know which output should
-    // receive the payment ID and such a tx is fingerprintable to monero-serai anyway
-    let need_dummy_payment_id = !has_payment_id && payments.len() == 1;
-    has_payment_id |= need_dummy_payment_id;
-
     // Get the outgoing amount ignoring fees
     let out_amount = payments.iter().map(|payment| payment.1).sum::<u64>();
 
@@ -493,21 +472,19 @@ impl SignableTransaction {
     }
 
     // Collect payments in a container that includes a change output if a change address is provided
-    let mut payments = payments
-      .into_iter()
-      .map(|payment| InternalPayment::Payment(payment, need_dummy_payment_id))
-      .collect::<Vec<_>>();
-    debug_assert!(!need_dummy_payment_id || (payments.len() == 1 && change.address.is_some()));
-
+    let mut payments = payments.into_iter().map(InternalPayment::Payment).collect::<Vec<_>>();
     if let Some(change_address) = change.address.as_ref() {
       // Push a 0 amount change output that we'll use to do fee calculations.
       // We'll modify the change amount after calculating the fee
-      payments.push(InternalPayment::Change((*change_address, 0), change.view.clone()));
+      payments.push(InternalPayment::Change((*change_address, change.view.clone()), 0));
     }
 
     // Determine if we'll need additional pub keys in tx extra
     let (_, additional) = need_additional(&payments);
 
+    // Add a dummy payment ID if there's only 2 payments
+    has_payment_id |= outputs == 2;
+
     // Calculate the extra length
     let extra = Extra::fee_weight(outputs, additional, has_payment_id, data.as_ref());
 
@@ -547,8 +524,8 @@ impl SignableTransaction {
       let change_payment = payments.last_mut().unwrap();
       debug_assert!(matches!(change_payment, InternalPayment::Change(_, _)));
       *change_payment = InternalPayment::Change(
-        (*change_address, in_amount - out_amount - fee),
-        change.view.clone(),
+        (*change_address, change.view.clone()),
+        in_amount - out_amount - fee,
       );
     }
 
@@ -561,8 +538,8 @@ impl SignableTransaction {
         payments
           .iter()
           .map(|payment| match *payment {
-            InternalPayment::Payment(payment, _) => payment.1,
-            InternalPayment::Change(change, _) => change.1,
+            InternalPayment::Payment(payment) => payment.1,
+            InternalPayment::Change(_, amount) => amount,
           })
           .sum::<u64>() +
           fee,
@@ -629,7 +606,7 @@ impl SignableTransaction {
     if modified_change_ecdh {
       for payment in &*payments {
         match payment {
-          InternalPayment::Payment(payment, _) => {
+          InternalPayment::Payment(payment) => {
             // This should be the only payment and it should be a subaddress
             debug_assert!(payment.0.is_subaddress());
             tx_public_key = tx_key.deref() * payment.0.spend;
@@ -648,8 +625,8 @@ impl SignableTransaction {
       // Downcast the change output to a payment output if it doesn't require special handling
       // regarding it's view key
       payment = if !modified_change_ecdh {
-        if let InternalPayment::Change(change, _) = &payment {
-          InternalPayment::Payment(*change, false)
+        if let InternalPayment::Change(change, amount) = &payment {
+          InternalPayment::Payment((change.0, *amount))
         } else {
           payment
         }
@@ -658,14 +635,13 @@ impl SignableTransaction {
       };
 
       let (output, payment_id) = match payment {
-        InternalPayment::Payment(payment, need_dummy_payment_id) => {
+        InternalPayment::Payment(payment) => {
           // If this is a subaddress, generate a dedicated r. Else, reuse the TX key
           let dedicated = Zeroizing::new(random_scalar(&mut rng));
           let use_dedicated = additional && payment.0.is_subaddress();
           let r = if use_dedicated { &dedicated } else { &tx_key };
 
-          let (mut output, payment_id) =
-            SendOutput::new(r, uniqueness, (o, payment, need_dummy_payment_id));
+          let (mut output, payment_id) = SendOutput::new(r, uniqueness, (o, payment));
           if modified_change_ecdh {
             debug_assert_eq!(tx_public_key, output.R);
           }
@@ -679,11 +655,11 @@ impl SignableTransaction {
           }
           (output, payment_id)
         }
-        InternalPayment::Change(change, change_view) => {
+        InternalPayment::Change(change, amount) => {
           // Instead of rA, use Ra, where R is r * subaddress_spend_key
           // change.view must be Some as if it's None, this payment would've been downcast
-          let ecdh = tx_public_key * change_view.unwrap().deref();
-          SendOutput::change(ecdh, uniqueness, (o, change, false))
+          let ecdh = tx_public_key * change.1.unwrap().deref();
+          SendOutput::change(ecdh, uniqueness, (o, (change.0, amount)))
         }
       };
 
@@ -691,6 +667,16 @@ impl SignableTransaction {
       id = id.or(payment_id);
     }
 
+    // Include a random payment ID if we don't actually have one
+    // It prevents transactions from leaking if they're sending to integrated addresses or not
+    // Only do this if we only have two outputs though, as Monero won't add a dummy if there's
+    // more than two outputs
+    if outputs.len() <= 2 {
+      let mut rand = [0; 8];
+      rng.fill_bytes(&mut rand);
+      id = id.or(Some(rand));
+    }
+
     (tx_public_key, additional_keys, outputs, id)
   }
 
@@ -963,26 +949,21 @@ impl Eventuality {
 
     fn write_payment<W: io::Write>(payment: &InternalPayment, w: &mut W) -> io::Result<()> {
       match payment {
-        InternalPayment::Payment(payment, need_dummy_payment_id) => {
+        InternalPayment::Payment(payment) => {
           w.write_all(&[0])?;
           write_vec(write_byte, payment.0.to_string().as_bytes(), w)?;
-          w.write_all(&payment.1.to_le_bytes())?;
-          if *need_dummy_payment_id {
-            w.write_all(&[1])
-          } else {
-            w.write_all(&[0])
+          w.write_all(&payment.1.to_le_bytes())
         }
-        }
-        InternalPayment::Change(change, change_view) => {
+        InternalPayment::Change(change, amount) => {
           w.write_all(&[1])?;
           write_vec(write_byte, change.0.to_string().as_bytes(), w)?;
-          w.write_all(&change.1.to_le_bytes())?;
-          if let Some(view) = change_view.as_ref() {
+          if let Some(view) = change.1.as_ref() {
             w.write_all(&[1])?;
-            write_scalar(view, w)
+            write_scalar(view, w)?;
           } else {
-            w.write_all(&[0])
+            w.write_all(&[0])?;
           }
+          w.write_all(&amount.to_le_bytes())
         }
       }
     }
@@ -1007,22 +988,18 @@ impl Eventuality {
 
     fn read_payment<R: io::Read>(r: &mut R) -> io::Result<InternalPayment> {
       Ok(match read_byte(r)? {
-        0 => InternalPayment::Payment(
-          (read_address(r)?, read_u64(r)?),
-          match read_byte(r)? {
-            0 => false,
-            1 => true,
-            _ => Err(io::Error::other("invalid need additional"))?,
-          },
-        ),
+        0 => InternalPayment::Payment((read_address(r)?, read_u64(r)?)),
         1 => InternalPayment::Change(
-          (read_address(r)?, read_u64(r)?),
+          (
+            read_address(r)?,
             match read_byte(r)? {
               0 => None,
               1 => Some(Zeroizing::new(read_scalar(r)?)),
-            _ => Err(io::Error::other("invalid change view"))?,
+              _ => Err(io::Error::other("invalid change payment"))?,
             },
           ),
+          read_u64(r)?,
+        ),
         _ => Err(io::Error::other("invalid payment"))?,
       })
     }

coins/monero/src/wallet/send/multisig.rs

@@ -120,20 +120,16 @@ impl SignableTransaction {
 
     for payment in &self.payments {
       match payment {
-        InternalPayment::Payment(payment, need_dummy_payment_id) => {
+        InternalPayment::Payment(payment) => {
           transcript.append_message(b"payment_address", payment.0.to_string().as_bytes());
           transcript.append_message(b"payment_amount", payment.1.to_le_bytes());
-          transcript.append_message(
-            b"need_dummy_payment_id",
-            [if *need_dummy_payment_id { 1u8 } else { 0u8 }],
-          );
         }
-        InternalPayment::Change(change, change_view) => {
+        InternalPayment::Change(change, amount) => {
           transcript.append_message(b"change_address", change.0.to_string().as_bytes());
-          transcript.append_message(b"change_amount", change.1.to_le_bytes());
-          if let Some(view) = change_view.as_ref() {
+          if let Some(view) = change.1.as_ref() {
             transcript.append_message(b"change_view_key", Zeroizing::new(view.to_bytes()));
           }
+          transcript.append_message(b"change_amount", amount.to_le_bytes());
         }
       }
     }

coins/monero/tests/decoys.rs

@@ -1,162 +0,0 @@
-use monero_serai::{
-  transaction::Transaction,
-  wallet::SpendableOutput,
-  rpc::{Rpc, OutputResponse},
-  Protocol, DEFAULT_LOCK_WINDOW,
-};
-
-mod runner;
-
-test!(
-  select_latest_output_as_decoy_canonical,
-  (
-    // First make an initial tx0
-    |_, mut builder: Builder, addr| async move {
-      builder.add_payment(addr, 2000000000000);
-      (builder.build().unwrap(), ())
-    },
-    |rpc: Rpc<_>, tx: Transaction, mut scanner: Scanner, ()| async move {
-      let output = scanner.scan_transaction(&tx).not_locked().swap_remove(0);
-      assert_eq!(output.commitment().amount, 2000000000000);
-      SpendableOutput::from(&rpc, output).await.unwrap()
-    },
-  ),
-  (
-    // Then make a second tx1
-    |protocol: Protocol, rpc: Rpc<_>, mut builder: Builder, addr, state: _| async move {
-      let output_tx0: SpendableOutput = state;
-      let decoys = Decoys::fingerprintable_canonical_select(
-        &mut OsRng,
-        &rpc,
-        protocol.ring_len(),
-        rpc.get_height().await.unwrap(),
-        &[output_tx0.clone()],
-      )
-      .await
-      .unwrap();
-
-      let inputs = [output_tx0.clone()].into_iter().zip(decoys).collect::<Vec<_>>();
-      builder.add_inputs(&inputs);
-      builder.add_payment(addr, 1000000000000);
-
-      (builder.build().unwrap(), (protocol, output_tx0))
-    },
-    // Then make sure DSA selects freshly unlocked output from tx1 as a decoy
-    |rpc: Rpc<_>, tx: Transaction, mut scanner: Scanner, state: (_, _)| async move {
-      use rand_core::OsRng;
-
-      let height = rpc.get_height().await.unwrap();
-
-      let output_tx1 =
-        SpendableOutput::from(&rpc, scanner.scan_transaction(&tx).not_locked().swap_remove(0))
-          .await
-          .unwrap();
-
-      // Make sure output from tx1 is in the block in which it unlocks
-      let out_tx1: OutputResponse =
-        rpc.get_outs(&[output_tx1.global_index]).await.unwrap().swap_remove(0);
-      assert_eq!(out_tx1.height, height - DEFAULT_LOCK_WINDOW);
-      assert!(out_tx1.unlocked);
-
-      // Select decoys using spendable output from tx0 as the real, and make sure DSA selects
-      // the freshly unlocked output from tx1 as a decoy
-      let (protocol, output_tx0): (Protocol, SpendableOutput) = state;
-      let mut selected_fresh_decoy = false;
-      let mut attempts = 1000;
-      while !selected_fresh_decoy && attempts > 0 {
-        let decoys = Decoys::fingerprintable_canonical_select(
-          &mut OsRng, // TODO: use a seeded RNG to consistently select the latest output
-          &rpc,
-          protocol.ring_len(),
-          height,
-          &[output_tx0.clone()],
-        )
-        .await
-        .unwrap();
-
-        selected_fresh_decoy = decoys[0].indexes().contains(&output_tx1.global_index);
-        attempts -= 1;
-      }
-
-      assert!(selected_fresh_decoy);
-      assert_eq!(height, rpc.get_height().await.unwrap());
-    },
-  ),
-);
-
-test!(
-  select_latest_output_as_decoy,
-  (
-    // First make an initial tx0
-    |_, mut builder: Builder, addr| async move {
-      builder.add_payment(addr, 2000000000000);
-      (builder.build().unwrap(), ())
-    },
-    |rpc: Rpc<_>, tx: Transaction, mut scanner: Scanner, ()| async move {
-      let output = scanner.scan_transaction(&tx).not_locked().swap_remove(0);
-      assert_eq!(output.commitment().amount, 2000000000000);
-      SpendableOutput::from(&rpc, output).await.unwrap()
-    },
-  ),
-  (
-    // Then make a second tx1
-    |protocol: Protocol, rpc: Rpc<_>, mut builder: Builder, addr, state: _| async move {
-      let output_tx0: SpendableOutput = state;
-      let decoys = Decoys::select(
-        &mut OsRng,
-        &rpc,
-        protocol.ring_len(),
-        rpc.get_height().await.unwrap(),
-        &[output_tx0.clone()],
-      )
-      .await
-      .unwrap();
-
-      let inputs = [output_tx0.clone()].into_iter().zip(decoys).collect::<Vec<_>>();
-      builder.add_inputs(&inputs);
-      builder.add_payment(addr, 1000000000000);
-
-      (builder.build().unwrap(), (protocol, output_tx0))
-    },
-    // Then make sure DSA selects freshly unlocked output from tx1 as a decoy
-    |rpc: Rpc<_>, tx: Transaction, mut scanner: Scanner, state: (_, _)| async move {
-      use rand_core::OsRng;
-
-      let height = rpc.get_height().await.unwrap();
-
-      let output_tx1 =
-        SpendableOutput::from(&rpc, scanner.scan_transaction(&tx).not_locked().swap_remove(0))
-          .await
-          .unwrap();
-
-      // Make sure output from tx1 is in the block in which it unlocks
-      let out_tx1: OutputResponse =
-        rpc.get_outs(&[output_tx1.global_index]).await.unwrap().swap_remove(0);
-      assert_eq!(out_tx1.height, height - DEFAULT_LOCK_WINDOW);
-      assert!(out_tx1.unlocked);
-
-      // Select decoys using spendable output from tx0 as the real, and make sure DSA selects
-      // the freshly unlocked output from tx1 as a decoy
-      let (protocol, output_tx0): (Protocol, SpendableOutput) = state;
-      let mut selected_fresh_decoy = false;
-      let mut attempts = 1000;
-      while !selected_fresh_decoy && attempts > 0 {
-        let decoys = Decoys::select(
-          &mut OsRng, // TODO: use a seeded RNG to consistently select the latest output
-          &rpc,
-          protocol.ring_len(),
-          height,
-          &[output_tx0.clone()],
-        )
-        .await
-        .unwrap();
-
-        selected_fresh_decoy = decoys[0].indexes().contains(&output_tx1.global_index);
-        attempts -= 1;
-      }
-
-      assert!(selected_fresh_decoy);
-      assert_eq!(height, rpc.get_height().await.unwrap());
-    },
-  ),
-);

coins/monero/tests/runner.rs

@@ -17,7 +17,6 @@ use monero_serai::{
     SpendableOutput, Fee,
   },
   transaction::Transaction,
-  DEFAULT_LOCK_WINDOW,
 };
 
 pub fn random_address() -> (Scalar, ViewPair, MoneroAddress) {
@@ -37,6 +36,7 @@ pub fn random_address() -> (Scalar, ViewPair, MoneroAddress) {
 
 // TODO: Support transactions already on-chain
 // TODO: Don't have a side effect of mining blocks more blocks than needed under race conditions
+// TODO: mine as much as needed instead of default 10 blocks
 pub async fn mine_until_unlocked(rpc: &Rpc<HttpRpc>, addr: &str, tx_hash: [u8; 32]) {
   // mine until tx is in a block
   let mut height = rpc.get_height().await.unwrap();
@@ -46,23 +46,15 @@ pub async fn mine_until_unlocked(rpc: &Rpc<HttpRpc>, addr: &str, tx_hash: [u8; 3
     found = match block.txs.iter().find(|&&x| x == tx_hash) {
       Some(_) => true,
       None => {
-        height = rpc.generate_blocks(addr, 1).await.unwrap().1 + 1;
+        rpc.generate_blocks(addr, 1).await.unwrap();
+        height += 1;
         false
       }
     }
   }
 
-  // Mine until tx's outputs are unlocked
-  let o_indexes: Vec<u64> = rpc.get_o_indexes(tx_hash).await.unwrap();
-  while rpc
-    .get_outs(&o_indexes)
-    .await
-    .unwrap()
-    .into_iter()
-    .all(|o| (!(o.unlocked && height >= (o.height + DEFAULT_LOCK_WINDOW))))
-  {
-    height = rpc.generate_blocks(addr, 1).await.unwrap().1 + 1;
-  }
+  // mine 9 more blocks to unlock the tx
+  rpc.generate_blocks(addr, 9).await.unwrap();
 }
 
 // Mines 60 blocks and returns an unlocked miner TX output.
@@ -94,7 +86,7 @@ pub fn check_weight_and_fee(tx: &Transaction, fee_rate: Fee) {
 }
 
 pub async fn rpc() -> Rpc<HttpRpc> {
-  let rpc = HttpRpc::new("http://serai:seraidex@127.0.0.1:18081".to_string()).await.unwrap();
+  let rpc = HttpRpc::new("http://127.0.0.1:18081".to_string()).await.unwrap();
 
   // Only run once
   if rpc.get_height().await.unwrap() != 1 {
@@ -220,7 +212,7 @@ macro_rules! test {
 
           let builder = SignableTransactionBuilder::new(
             protocol,
-            rpc.get_fee(protocol, FeePriority::Unimportant).await.unwrap(),
+            rpc.get_fee(protocol, FeePriority::Low).await.unwrap(),
             Change::new(
               &ViewPair::new(
                 &random_scalar(&mut OsRng) * ED25519_BASEPOINT_TABLE,
@@ -268,12 +260,12 @@ macro_rules! test {
           let temp = Box::new({
             let mut builder = builder.clone();
 
-            let decoys = Decoys::fingerprintable_canonical_select(
+            let decoys = Decoys::select(
               &mut OsRng,
               &rpc,
               protocol.ring_len(),
-              rpc.get_height().await.unwrap(),
-              &[miner_tx.clone()],
+              rpc.get_height().await.unwrap() - 1,
+              &[miner_tx.clone()]
             )
             .await
             .unwrap();

coins/monero/tests/scan.rs

@@ -1,9 +1,6 @@
 use rand::RngCore;
 
-use monero_serai::{
-  transaction::Transaction,
-  wallet::{address::SubaddressIndex, extra::PaymentId},
-};
+use monero_serai::{transaction::Transaction, wallet::address::SubaddressIndex};
 
 mod runner;
 
@@ -19,8 +16,6 @@ test!(
     |_, tx: Transaction, _, mut state: Scanner| async move {
       let output = state.scan_transaction(&tx).not_locked().swap_remove(0);
       assert_eq!(output.commitment().amount, 5);
-      let dummy_payment_id = PaymentId::Encrypted([0u8; 8]);
-      assert_eq!(output.metadata.payment_id, Some(dummy_payment_id));
     },
   ),
 );
@@ -62,7 +57,7 @@ test!(
     |_, tx: Transaction, _, mut state: (Scanner, [u8; 8])| async move {
       let output = state.0.scan_transaction(&tx).not_locked().swap_remove(0);
       assert_eq!(output.commitment().amount, 5);
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted(state.1)));
+      assert_eq!(output.metadata.payment_id, state.1);
     },
   ),
 );
@@ -145,7 +140,7 @@ test!(
     |_, tx: Transaction, _, mut state: (Scanner, [u8; 8])| async move {
       let output = state.0.scan_transaction(&tx).not_locked().swap_remove(0);
       assert_eq!(output.commitment().amount, 5);
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted(state.1)));
+      assert_eq!(output.metadata.payment_id, state.1);
     },
   ),
 );
@@ -179,7 +174,7 @@ test!(
     |_, tx: Transaction, _, mut state: (Scanner, [u8; 8], SubaddressIndex)| async move {
       let output = state.0.scan_transaction(&tx).not_locked().swap_remove(0);
       assert_eq!(output.commitment().amount, 5);
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted(state.1)));
+      assert_eq!(output.metadata.payment_id, state.1);
       assert_eq!(output.metadata.subaddress, Some(state.2));
     },
   ),
@@ -264,7 +259,7 @@ test!(
     |_, tx: Transaction, _, mut state: (Scanner, [u8; 8])| async move {
       let output = state.0.scan_transaction(&tx).not_locked().swap_remove(0);
       assert_eq!(output.commitment().amount, 5);
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted(state.1)));
+      assert_eq!(output.metadata.payment_id, state.1);
     },
   ),
 );
@@ -298,7 +293,7 @@ test!(
     |_, tx: Transaction, _, mut state: (Scanner, [u8; 8], SubaddressIndex)| async move {
       let output = state.0.scan_transaction(&tx).not_locked().swap_remove(0);
       assert_eq!(output.commitment().amount, 5);
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted(state.1)));
+      assert_eq!(output.metadata.payment_id, state.1);
       assert_eq!(output.metadata.subaddress, Some(state.2));
     },
   ),

coins/monero/tests/send.rs

@@ -24,11 +24,11 @@ async fn add_inputs(
     spendable_outputs.push(SpendableOutput::from(rpc, output).await.unwrap());
   }
 
-  let decoys = Decoys::fingerprintable_canonical_select(
+  let decoys = Decoys::select(
     &mut OsRng,
     rpc,
     protocol.ring_len(),
-    rpc.get_height().await.unwrap(),
+    rpc.get_height().await.unwrap() - 1,
     &spendable_outputs,
   )
   .await
@@ -110,7 +110,7 @@ test!(
 
       let mut builder = SignableTransactionBuilder::new(
         protocol,
-        rpc.get_fee(protocol, FeePriority::Unimportant).await.unwrap(),
+        rpc.get_fee(protocol, FeePriority::Low).await.unwrap(),
         Change::new(&change_view, false),
       );
       add_inputs(protocol, &rpc, vec![outputs.first().unwrap().clone()], &mut builder).await;
@@ -294,7 +294,7 @@ test!(
 
       let mut builder = SignableTransactionBuilder::new(
         protocol,
-        rpc.get_fee(protocol, FeePriority::Unimportant).await.unwrap(),
+        rpc.get_fee(protocol, FeePriority::Low).await.unwrap(),
         Change::fingerprintable(None),
       );
       add_inputs(protocol, &rpc, vec![outputs.first().unwrap().clone()], &mut builder).await;

coins/monero/tests/wallet2_compatibility.rs

@@ -10,7 +10,7 @@ use monero_serai::{
   rpc::{EmptyResponse, HttpRpc, Rpc},
   wallet::{
     address::{Network, AddressSpec, SubaddressIndex, MoneroAddress},
-    extra::{MAX_TX_EXTRA_NONCE_SIZE, Extra, PaymentId},
+    extra::{MAX_TX_EXTRA_NONCE_SIZE, Extra},
     Scanner,
   },
 };
@@ -35,7 +35,7 @@ async fn make_integrated_address(rpc: &Rpc<HttpRpc>, payment_id: [u8; 8]) -> Str
 }
 
 async fn initialize_rpcs() -> (Rpc<HttpRpc>, Rpc<HttpRpc>, String) {
-  let wallet_rpc = HttpRpc::new("http://127.0.0.1:18082".to_string()).await.unwrap();
+  let wallet_rpc = HttpRpc::new("http://127.0.0.1:6061".to_string()).await.unwrap();
   let daemon_rpc = runner::rpc().await;
 
   #[derive(Debug, Deserialize)]
@@ -88,9 +88,11 @@ async fn from_wallet_rpc_to_self(spec: AddressSpec) {
     .unwrap();
   let tx_hash = hex::decode(tx.tx_hash).unwrap().try_into().unwrap();
 
-  // TODO: Needs https://github.com/monero-project/monero/pull/9260
+  // TODO: Needs https://github.com/monero-project/monero/pull/8882
   // let fee_rate = daemon_rpc
-  //   .get_fee(daemon_rpc.get_protocol().await.unwrap(), FeePriority::Unimportant)
+  //   // Uses `FeePriority::Low` instead of `FeePriority::Lowest` because wallet RPC
+  //   // adjusts `monero_rpc::TransferPriority::Default` up by 1
+  //   .get_fee(daemon_rpc.get_protocol().await.unwrap(), FeePriority::Low)
   //   .await
   //   .unwrap();
 
@@ -107,21 +109,17 @@ async fn from_wallet_rpc_to_self(spec: AddressSpec) {
   let tx = daemon_rpc.get_transaction(tx_hash).await.unwrap();
   let output = scanner.scan_transaction(&tx).not_locked().swap_remove(0);
 
-  // TODO: Needs https://github.com/monero-project/monero/pull/9260
+  // TODO: Needs https://github.com/monero-project/monero/pull/8882
   // runner::check_weight_and_fee(&tx, fee_rate);
 
   match spec {
-    AddressSpec::Subaddress(index) => {
-      assert_eq!(output.metadata.subaddress, Some(index));
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted([0u8; 8])));
-    }
+    AddressSpec::Subaddress(index) => assert_eq!(output.metadata.subaddress, Some(index)),
     AddressSpec::Integrated(payment_id) => {
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted(payment_id)));
+      assert_eq!(output.metadata.payment_id, payment_id);
       assert_eq!(output.metadata.subaddress, None);
     }
     AddressSpec::Standard | AddressSpec::Featured { .. } => {
-      assert_eq!(output.metadata.subaddress, None);
-      assert_eq!(output.metadata.payment_id, Some(PaymentId::Encrypted([0u8; 8])));
+      assert_eq!(output.metadata.subaddress, None)
     }
   }
   assert_eq!(output.commitment().amount, 1000000000000);
@@ -159,7 +157,6 @@ struct Transfer {
 #[derive(Debug, Deserialize)]
 struct TransfersResponse {
   transfer: Transfer,
-  transfers: Vec<Transfer>,
 }
 
 test!(
@@ -183,7 +180,6 @@ test!(
         .unwrap();
       assert_eq!(transfer.transfer.subaddr_index, Index { major: 0, minor: 0 });
       assert_eq!(transfer.transfer.amount, 1000000);
-      assert_eq!(transfer.transfer.payment_id, hex::encode([0u8; 8]));
     },
   ),
 );
@@ -221,7 +217,6 @@ test!(
         .unwrap();
       assert_eq!(transfer.transfer.subaddr_index, Index { major: data.1, minor: 0 });
       assert_eq!(transfer.transfer.amount, 1000000);
-      assert_eq!(transfer.transfer.payment_id, hex::encode([0u8; 8]));
 
       // Make sure only one R was included in TX extra
       assert!(Extra::read::<&[u8]>(&mut tx.prefix.extra.as_ref())
@@ -234,62 +229,6 @@ test!(
   ),
 );
 
-test!(
-  send_to_wallet_rpc_subaddresses,
-  (
-    |_, mut builder: Builder, _| async move {
-      // initialize rpc
-      let (wallet_rpc, daemon_rpc, _) = initialize_rpcs().await;
-
-      // make the subaddress
-      #[derive(Debug, Deserialize)]
-      struct AddressesResponse {
-        addresses: Vec<String>,
-        address_index: u32,
-      }
-      let addrs: AddressesResponse = wallet_rpc
-        .json_rpc_call("create_address", Some(json!({ "account_index": 0, "count": 2 })))
-        .await
-        .unwrap();
-      assert!(addrs.address_index != 0);
-      assert!(addrs.addresses.len() == 2);
-
-      builder.add_payments(&[
-        (MoneroAddress::from_str(Network::Mainnet, &addrs.addresses[0]).unwrap(), 1000000),
-        (MoneroAddress::from_str(Network::Mainnet, &addrs.addresses[1]).unwrap(), 2000000),
-      ]);
-      (builder.build().unwrap(), (wallet_rpc, daemon_rpc, addrs.address_index))
-    },
-    |_, tx: Transaction, _, data: (Rpc<HttpRpc>, Rpc<HttpRpc>, u32)| async move {
-      // confirm receipt
-      let _: EmptyResponse = data.0.json_rpc_call("refresh", None).await.unwrap();
-      let transfer: TransfersResponse = data
-        .0
-        .json_rpc_call(
-          "get_transfer_by_txid",
-          Some(json!({ "txid": hex::encode(tx.hash()), "account_index": 0 })),
-        )
-        .await
-        .unwrap();
-
-      assert_eq!(transfer.transfers.len(), 2);
-      for t in transfer.transfers {
-        match t.amount {
-          1000000 => assert_eq!(t.subaddr_index, Index { major: 0, minor: data.2 }),
-          2000000 => assert_eq!(t.subaddr_index, Index { major: 0, minor: data.2 + 1 }),
-          _ => unreachable!(),
-        }
-      }
-
-      // Make sure 3 additional pub keys are included in TX extra
-      let keys =
-        Extra::read::<&[u8]>(&mut tx.prefix.extra.as_ref()).unwrap().keys().unwrap().1.unwrap();
-
-      assert_eq!(keys.len(), 3);
-    },
-  ),
-);
-
 test!(
   send_to_wallet_rpc_integrated,
   (

common/db/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 
 [dependencies]
 parity-db = { version = "0.4", default-features = false, optional = true }
-rocksdb = { version = "0.21", default-features = false, features = ["zstd"], optional = true }
+rocksdb = { version = "0.21", default-features = false, features = ["lz4"], optional = true }
 
 [features]
 parity-db = ["dep:parity-db"]

common/db/src/create_db.rs

@@ -42,9 +42,9 @@ macro_rules! create_db {
   }) => {
     $(
       #[derive(Clone, Debug)]
-      pub(crate) struct $field_name;
+      pub struct $field_name;
       impl $field_name {
-        pub(crate) fn key($($arg: $arg_type),*) -> Vec<u8> {
+        pub fn key($($arg: $arg_type),*) -> Vec<u8> {
           use scale::Encode;
           $crate::serai_db_key(
             stringify!($db_name).as_bytes(),
@@ -52,17 +52,17 @@ macro_rules! create_db {
             ($($arg),*).encode()
           )
         }
-        pub(crate) fn set(txn: &mut impl DbTxn $(, $arg: $arg_type)*, data: &$field_type) {
+        pub fn set(txn: &mut impl DbTxn $(, $arg: $arg_type)*, data: &$field_type) {
           let key = $field_name::key($($arg),*);
           txn.put(&key, borsh::to_vec(data).unwrap());
         }
-        pub(crate) fn get(getter: &impl Get, $($arg: $arg_type),*) -> Option<$field_type> {
+        pub fn get(getter: &impl Get, $($arg: $arg_type),*) -> Option<$field_type> {
           getter.get($field_name::key($($arg),*)).map(|data| {
             borsh::from_slice(data.as_ref()).unwrap()
           })
         }
         #[allow(dead_code)]
-        pub(crate) fn del(txn: &mut impl DbTxn $(, $arg: $arg_type)*) {
+        pub fn del(txn: &mut impl DbTxn $(, $arg: $arg_type)*) {
           txn.del(&$field_name::key($($arg),*))
         }
       }
@@ -83,7 +83,7 @@ macro_rules! db_channel {
       }
 
       impl $field_name {
-        pub(crate) fn send(txn: &mut impl DbTxn $(, $arg: $arg_type)*, value: &$field_type) {
+        pub fn send(txn: &mut impl DbTxn $(, $arg: $arg_type)*, value: &$field_type) {
           // Use index 0 to store the amount of messages
           let messages_sent_key = $field_name::key($($arg),*, 0);
           let messages_sent = txn.get(&messages_sent_key).map(|counter| {
@@ -98,7 +98,7 @@ macro_rules! db_channel {
 
           $field_name::set(txn, $($arg),*, index_to_use, value);
         }
-        pub(crate) fn try_recv(txn: &mut impl DbTxn $(, $arg: $arg_type)*) -> Option<$field_type> {
+        pub fn try_recv(txn: &mut impl DbTxn $(, $arg: $arg_type)*) -> Option<$field_type> {
           let messages_recvd_key = $field_name::key($($arg),*, 1);
           let messages_recvd = txn.get(&messages_recvd_key).map(|counter| {
             u32::from_le_bytes(counter.try_into().unwrap())

common/db/src/rocks.rs

@@ -1,65 +1,42 @@
 use std::sync::Arc;
 
-use rocksdb::{
-  DBCompressionType, ThreadMode, SingleThreaded, LogLevel, WriteOptions,
-  Transaction as RocksTransaction, Options, OptimisticTransactionDB,
-};
+use rocksdb::{DBCompressionType, ThreadMode, SingleThreaded, Options, Transaction, TransactionDB};
 
 use crate::*;
 
-pub struct Transaction<'a, T: ThreadMode>(
-  RocksTransaction<'a, OptimisticTransactionDB<T>>,
-  &'a OptimisticTransactionDB<T>,
-);
-
-impl<T: ThreadMode> Get for Transaction<'_, T> {
+impl<T: ThreadMode> Get for Transaction<'_, TransactionDB<T>> {
   fn get(&self, key: impl AsRef<[u8]>) -> Option<Vec<u8>> {
-    self.0.get(key).expect("couldn't read from RocksDB via transaction")
+    self.get(key).expect("couldn't read from RocksDB via transaction")
   }
 }
-impl<T: ThreadMode> DbTxn for Transaction<'_, T> {
+impl<T: ThreadMode> DbTxn for Transaction<'_, TransactionDB<T>> {
   fn put(&mut self, key: impl AsRef<[u8]>, value: impl AsRef<[u8]>) {
-    self.0.put(key, value).expect("couldn't write to RocksDB via transaction")
+    Transaction::put(self, key, value).expect("couldn't write to RocksDB via transaction")
   }
   fn del(&mut self, key: impl AsRef<[u8]>) {
-    self.0.delete(key).expect("couldn't delete from RocksDB via transaction")
+    self.delete(key).expect("couldn't delete from RocksDB via transaction")
   }
   fn commit(self) {
-    self.0.commit().expect("couldn't commit to RocksDB via transaction");
-    self.1.flush_wal(true).expect("couldn't flush RocksDB WAL");
-    self.1.flush().expect("couldn't flush RocksDB");
+    Transaction::commit(self).expect("couldn't commit to RocksDB via transaction")
   }
 }
 
-impl<T: ThreadMode> Get for Arc<OptimisticTransactionDB<T>> {
+impl<T: ThreadMode> Get for Arc<TransactionDB<T>> {
   fn get(&self, key: impl AsRef<[u8]>) -> Option<Vec<u8>> {
-    OptimisticTransactionDB::get(self, key).expect("couldn't read from RocksDB")
+    TransactionDB::get(self, key).expect("couldn't read from RocksDB")
   }
 }
-impl<T: Send + ThreadMode + 'static> Db for Arc<OptimisticTransactionDB<T>> {
-  type Transaction<'a> = Transaction<'a, T>;
+impl<T: ThreadMode + 'static> Db for Arc<TransactionDB<T>> {
+  type Transaction<'a> = Transaction<'a, TransactionDB<T>>;
   fn txn(&mut self) -> Self::Transaction<'_> {
-    let mut opts = WriteOptions::default();
-    opts.set_sync(true);
-    Transaction(self.transaction_opt(&opts, &Default::default()), &**self)
+    self.transaction()
   }
 }
 
-pub type RocksDB = Arc<OptimisticTransactionDB<SingleThreaded>>;
+pub type RocksDB = Arc<TransactionDB<SingleThreaded>>;
 pub fn new_rocksdb(path: &str) -> RocksDB {
   let mut options = Options::default();
   options.create_if_missing(true);
-  options.set_compression_type(DBCompressionType::Zstd);
-
-  options.set_wal_compression_type(DBCompressionType::Zstd);
-  // 10 MB
-  options.set_max_total_wal_size(10 * 1024 * 1024);
-  options.set_wal_size_limit_mb(10);
-
-  options.set_log_level(LogLevel::Warn);
-  // 1 MB
-  options.set_max_log_file_size(1024 * 1024);
-  options.set_recycle_log_file_num(1);
-
-  Arc::new(OptimisticTransactionDB::open(&options, path).unwrap())
+  options.set_compression_type(DBCompressionType::Lz4);
+  Arc::new(TransactionDB::open(&options, &Default::default(), path).unwrap())
 }

common/env/src/lib.rs

@@ -3,7 +3,6 @@
 
 // Obtain a variable from the Serai environment/secret store.
 pub fn var(variable: &str) -> Option<String> {
-  // TODO: Move this to a proper secret store
-  // TODO: Unset this variable
+  // TODO: Move this to Kubernetes
   std::env::var(variable).ok()
 }

common/request/Cargo.toml

@@ -17,13 +17,11 @@ rustdoc-args = ["--cfg", "docsrs"]
 workspace = true
 
 [dependencies]
-tower-service = { version = "0.3", default-features = false }
-hyper = { version = "1", default-features = false, features = ["http1", "client"] }
-hyper-util = { version = "0.1", default-features = false, features = ["http1", "client-legacy", "tokio"] }
-http-body-util = { version = "0.1", default-features = false }
+# Deprecated here means to enable deprecated warnings, not to restore deprecated APIs
+hyper = { version = "0.14", default-features = false, features = ["http1", "tcp", "client", "runtime", "backports", "deprecated"] }
 tokio = { version = "1", default-features = false }
 
-hyper-rustls = { version = "0.27", default-features = false, features = ["http1", "ring", "rustls-native-certs", "native-tokio"], optional = true }
+hyper-rustls = { version = "0.24", default-features = false, features = ["http1", "native-tokio"], optional = true }
 
 zeroize = { version = "1", optional = true }
 base64ct = { version = "1", features = ["alloc"], optional = true }

common/request/src/lib.rs

@@ -5,13 +5,14 @@ use std::sync::Arc;
 
 use tokio::sync::Mutex;
 
-use tower_service::Service as TowerService;
 #[cfg(feature = "tls")]
 use hyper_rustls::{HttpsConnectorBuilder, HttpsConnector};
-use hyper::{Uri, header::HeaderValue, body::Bytes, client::conn::http1::SendRequest};
-use hyper_util::{
-  rt::tokio::TokioExecutor,
-  client::legacy::{Client as HyperClient, connect::HttpConnector},
+use hyper::{
+  Uri,
+  header::HeaderValue,
+  body::Body,
+  service::Service,
+  client::{HttpConnector, conn::http1::SendRequest},
 };
 pub use hyper;
 
@@ -28,7 +29,6 @@ pub enum Error {
   InconsistentHost,
   ConnectionError(Box<dyn Send + Sync + std::error::Error>),
   Hyper(hyper::Error),
-  HyperUtil(hyper_util::client::legacy::Error),
 }
 
 #[cfg(not(feature = "tls"))]
@@ -38,12 +38,8 @@ type Connector = HttpsConnector<HttpConnector>;
 
 #[derive(Clone, Debug)]
 enum Connection {
-  ConnectionPool(HyperClient<Connector, Full<Bytes>>),
-  Connection {
-    connector: Connector,
-    host: Uri,
-    connection: Arc<Mutex<Option<SendRequest<Full<Bytes>>>>>,
-  },
+  ConnectionPool(hyper::Client<Connector>),
+  Connection { connector: Connector, host: Uri, connection: Arc<Mutex<Option<SendRequest<Body>>>> },
 }
 
 #[derive(Clone, Debug)]
@@ -53,23 +49,17 @@ pub struct Client {
 
 impl Client {
   fn connector() -> Connector {
-    let mut res = HttpConnector::new();
-    res.set_keepalive(Some(core::time::Duration::from_secs(60)));
     #[cfg(feature = "tls")]
-    let res = HttpsConnectorBuilder::new()
-      .with_native_roots()
-      .expect("couldn't fetch system's SSL roots")
-      .https_or_http()
-      .enable_http1()
-      .wrap_connector(res);
+    let res =
+      HttpsConnectorBuilder::new().with_native_roots().https_or_http().enable_http1().build();
+    #[cfg(not(feature = "tls"))]
+    let res = HttpConnector::new();
     res
   }
 
   pub fn with_connection_pool() -> Client {
     Client {
-      connection: Connection::ConnectionPool(
-        HyperClient::builder(TokioExecutor::new()).build(Self::connector()),
-      ),
+      connection: Connection::ConnectionPool(hyper::Client::builder().build(Self::connector())),
     }
   }
 
@@ -122,9 +112,7 @@ impl Client {
     }
 
     let response = match &self.connection {
-      Connection::ConnectionPool(client) => {
-        client.request(request).await.map_err(Error::HyperUtil)?
-      }
+      Connection::ConnectionPool(client) => client.request(request).await.map_err(Error::Hyper)?,
       Connection::Connection { connector, host, connection } => {
         let mut connection_lock = connection.lock().await;
 

common/request/src/request.rs

@@ -1,13 +1,12 @@
-use hyper::body::Bytes;
+use hyper::body::Body;
 #[cfg(feature = "basic-auth")]
 use hyper::header::HeaderValue;
-pub use http_body_util::Full;
 
 #[cfg(feature = "basic-auth")]
 use crate::Error;
 
 #[derive(Debug)]
-pub struct Request(pub(crate) hyper::Request<Full<Bytes>>);
+pub struct Request(pub(crate) hyper::Request<Body>);
 impl Request {
   #[cfg(feature = "basic-auth")]
   fn username_password_from_uri(&self) -> Result<(String, String), Error> {
@@ -60,8 +59,8 @@ impl Request {
     let _ = self.basic_auth_from_uri();
   }
 }
-impl From<hyper::Request<Full<Bytes>>> for Request {
-  fn from(request: hyper::Request<Full<Bytes>>) -> Request {
+impl From<hyper::Request<Body>> for Request {
+  fn from(request: hyper::Request<Body>) -> Request {
     Request(request)
   }
 }

common/request/src/response.rs

@@ -1,16 +1,14 @@
 use hyper::{
   StatusCode,
   header::{HeaderValue, HeaderMap},
-  body::{Buf, Incoming},
+  body::{Buf, Body},
 };
-use http_body_util::BodyExt;
 
 use crate::{Client, Error};
 
 // Borrows the client so its async task lives as long as this response exists.
-#[allow(dead_code)]
 #[derive(Debug)]
-pub struct Response<'a>(pub(crate) hyper::Response<Incoming>, pub(crate) &'a Client);
+pub struct Response<'a>(pub(crate) hyper::Response<Body>, pub(crate) &'a Client);
 impl<'a> Response<'a> {
   pub fn status(&self) -> StatusCode {
     self.0.status()
@@ -19,6 +17,6 @@ impl<'a> Response<'a> {
     self.0.headers()
   }
   pub async fn body(self) -> Result<impl std::io::Read, Error> {
-    Ok(self.0.into_body().collect().await.map_err(Error::Hyper)?.aggregate().reader())
+    hyper::body::aggregate(self.0.into_body()).await.map(Buf::reader).map_err(Error::Hyper)
   }
 }

common/std-shims/src/io.rs

@@ -64,20 +64,6 @@ mod shims {
     }
   }
 
-  pub trait BufRead: Read {
-    fn fill_buf(&mut self) -> Result<&[u8]>;
-    fn consume(&mut self, amt: usize);
-  }
-
-  impl BufRead for &[u8] {
-    fn fill_buf(&mut self) -> Result<&[u8]> {
-      Ok(*self)
-    }
-    fn consume(&mut self, amt: usize) {
-      *self = &self[amt ..];
-    }
-  }
-
   pub trait Write {
     fn write(&mut self, buf: &[u8]) -> Result<usize>;
     fn write_all(&mut self, buf: &[u8]) -> Result<()> {

coordinator/Cargo.toml

@@ -32,7 +32,6 @@ frost-schnorrkel = { path = "../crypto/schnorrkel" }
 
 scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["std", "derive"] }
 
-zalloc = { path = "../common/zalloc" }
 serai-db = { path = "../common/db" }
 serai-env = { path = "../common/env" }
 
@@ -40,7 +39,7 @@ processor-messages = { package = "serai-processor-messages", path = "../processo
 message-queue = { package = "serai-message-queue", path = "../message-queue" }
 tributary = { package = "tributary-chain", path = "./tributary" }
 
-sp-application-crypto = { git = "https://github.com/serai-dex/substrate", default-features = false, features = ["std"] }
+sp-application-crypto = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "experimental", default-features = false, features = ["std"] }
 serai-client = { path = "../substrate/client", default-features = false, features = ["serai", "borsh"] }
 
 hex = { version = "0.4", default-features = false, features = ["std"] }
@@ -49,16 +48,15 @@ borsh = { version = "1", default-features = false, features = ["std", "derive",
 log = { version = "0.4", default-features = false, features = ["std"] }
 env_logger = { version = "0.10", default-features = false, features = ["humantime"] }
 
-futures-util = { version = "0.3", default-features = false, features = ["std"] }
 tokio = { version = "1", default-features = false, features = ["rt-multi-thread", "sync", "time", "macros"] }
-libp2p = { version = "0.52", default-features = false, features = ["tokio", "tcp", "noise", "yamux", "request-response", "gossipsub", "macros"] }
+libp2p = { version = "0.52", default-features = false, features = ["tokio", "tcp", "noise", "yamux", "gossipsub", "mdns", "macros"] }
 
 [dev-dependencies]
+futures-util = { version = "0.3", default-features = false, features = ["std"] }
 tributary = { package = "tributary-chain", path = "./tributary", features = ["tests"] }
-sp-application-crypto = { git = "https://github.com/serai-dex/substrate", default-features = false, features = ["std"] }
-sp-runtime = { git = "https://github.com/serai-dex/substrate", default-features = false, features = ["std"] }
+sp-application-crypto = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "experimental", default-features = false, features = ["std"] }
+sp-runtime = { git = "https://github.com/serai-dex/polkadot-sdk", branch = "experimental", default-features = false, features = ["std"] }
 
 [features]
-longer-reattempts = []
 parity-db = ["serai-db/parity-db"]
 rocksdb = ["serai-db/rocksdb"]

coordinator/src/cosign_evaluator.rs

@@ -22,7 +22,7 @@ use serai_db::{Get, DbTxn, Db, create_db};
 use processor_messages::coordinator::cosign_block_msg;
 
 use crate::{
-  p2p::{CosignedBlock, GossipMessageKind, P2p},
+  p2p::{CosignedBlock, P2pMessageKind, P2p},
   substrate::LatestCosignedBlock,
 };
 
@@ -323,7 +323,7 @@ impl<D: Db> CosignEvaluator<D> {
           for cosign in cosigns {
             let mut buf = vec![];
             cosign.serialize(&mut buf).unwrap();
-            P2p::broadcast(&p2p, GossipMessageKind::CosignedBlock, buf).await;
+            P2p::broadcast(&p2p, P2pMessageKind::CosignedBlock, buf).await;
           }
           sleep(Duration::from_secs(60)).await;
         }

coordinator/src/main.rs

@@ -9,10 +9,7 @@ use zeroize::{Zeroize, Zeroizing};
 use rand_core::OsRng;
 
 use ciphersuite::{
-  group::{
-    ff::{Field, PrimeField},
-    GroupEncoding,
-  },
+  group::ff::{Field, PrimeField},
   Ciphersuite, Ristretto,
 };
 use schnorr::SchnorrSignature;
@@ -66,10 +63,6 @@ use cosign_evaluator::CosignEvaluator;
 #[cfg(test)]
 pub mod tests;
 
-#[global_allocator]
-static ALLOCATOR: zalloc::ZeroizingAlloc<std::alloc::System> =
-  zalloc::ZeroizingAlloc(std::alloc::System);
-
 #[derive(Clone)]
 pub struct ActiveTributary<D: Db, P: P2p> {
   pub spec: TributarySpec,
@@ -243,9 +236,7 @@ async fn handle_processor_message<D: Db, P: P2p>(
       coordinator::ProcessorMessage::InvalidParticipant { id, .. } |
       coordinator::ProcessorMessage::CosignPreprocess { id, .. } |
       coordinator::ProcessorMessage::BatchPreprocess { id, .. } |
-      coordinator::ProcessorMessage::SlashReportPreprocess { id, .. } |
       coordinator::ProcessorMessage::SubstrateShare { id, .. } => Some(id.session),
-      // This causes an action on our P2P net yet not on any Tributary
       coordinator::ProcessorMessage::CosignedBlock { block_number, block, signature } => {
         let cosigned_block = CosignedBlock {
           network,
@@ -260,58 +251,9 @@ async fn handle_processor_message<D: Db, P: P2p>(
         cosign_channel.send(cosigned_block).unwrap();
         let mut buf = vec![];
         cosigned_block.serialize(&mut buf).unwrap();
-        P2p::broadcast(p2p, GossipMessageKind::CosignedBlock, buf).await;
+        P2p::broadcast(p2p, P2pMessageKind::CosignedBlock, buf).await;
         None
       }
-      // This causes an action on Substrate yet not on any Tributary
-      coordinator::ProcessorMessage::SignedSlashReport { session, signature } => {
-        let set = ValidatorSet { network, session: *session };
-        let signature: &[u8] = signature.as_ref();
-        let signature = serai_client::Signature(signature.try_into().unwrap());
-
-        let slashes = crate::tributary::SlashReport::get(&txn, set)
-          .expect("signed slash report despite not having slash report locally");
-        let slashes_pubs =
-          slashes.iter().map(|(address, points)| (Public(*address), *points)).collect::<Vec<_>>();
-
-        let tx = serai_client::SeraiValidatorSets::report_slashes(
-          network,
-          slashes
-            .into_iter()
-            .map(|(address, points)| (serai_client::SeraiAddress(address), points))
-            .collect::<Vec<_>>()
-            .try_into()
-            .unwrap(),
-          signature.clone(),
-        );
-
-        loop {
-          if serai.publish(&tx).await.is_ok() {
-            break None;
-          }
-
-          // Check if the slashes shouldn't still be reported. If not, break.
-          let Ok(serai) = serai.as_of_latest_finalized_block().await else {
-            tokio::time::sleep(core::time::Duration::from_secs(5)).await;
-            continue;
-          };
-          let Ok(key) = serai.validator_sets().key_pending_slash_report(network).await else {
-            tokio::time::sleep(core::time::Duration::from_secs(5)).await;
-            continue;
-          };
-          let Some(key) = key else {
-            break None;
-          };
-          // If this is the key for this slash report, then this will verify
-          use sp_application_crypto::RuntimePublic;
-          if !key.verify(
-            &serai_client::validator_sets::primitives::report_slashes_message(&set, &slashes_pubs),
-            &signature,
-          ) {
-            break None;
-          }
-        }
-      }
     },
     // These don't return a relevant Tributary as there's no Tributary with action expected
     ProcessorMessage::Substrate(inner_msg) => match inner_msg {
@@ -429,22 +371,14 @@ async fn handle_processor_message<D: Db, P: P2p>(
           }]
         }
         key_gen::ProcessorMessage::InvalidCommitments { id, faulty } => {
-          // This doesn't have guaranteed timing
-          //
-          // While the party *should* be fatally slashed and not included in future attempts,
-          // they'll actually be fatally slashed (assuming liveness before the Tributary retires)
-          // and not included in future attempts *which begin after the latency window completes*
-          let participant = spec
-            .reverse_lookup_i(
-              &crate::tributary::removed_as_of_dkg_attempt(&txn, spec.genesis(), id.attempt)
-                .expect("participating in DKG attempt yet we didn't save who was removed"),
-              faulty,
-            )
-            .unwrap();
-          vec![Transaction::RemoveParticipantDueToDkg {
-            participant,
-            signed: Transaction::empty_signed(),
-          }]
+          // This doesn't need the ID since it's a Provided transaction which everyone will provide
+          // With this provision comes explicit ordering (with regards to other
+          // RemoveParticipantDueToDkg transactions) and group consensus
+          // Accordingly, this can't be replayed
+          // It could be included on-chain early/late with regards to the chain's active attempt,
+          // which attempt scheduling is written to make a non-issue by auto re-attempting once a
+          // fatal slash occurs, regardless of timing
+          vec![Transaction::RemoveParticipantDueToDkg { attempt: id.attempt, participant: faulty }]
         }
         key_gen::ProcessorMessage::Shares { id, mut shares } => {
           // Create a MuSig-based machine to inform Substrate of this key generation
@@ -454,7 +388,7 @@ async fn handle_processor_message<D: Db, P: P2p>(
             .expect("participating in a DKG attempt yet we didn't track who was removed yet?");
           let our_i = spec
             .i(&removed, pub_key)
-            .expect("processor message to DKG for an attempt we aren't a validator in");
+            .expect("processor message to DKG for a session we aren't a validator in");
 
           // `tx_shares` needs to be done here as while it can be serialized from the HashMap
           // without further context, it can't be deserialized without context
@@ -483,13 +417,30 @@ async fn handle_processor_message<D: Db, P: P2p>(
           }]
         }
         key_gen::ProcessorMessage::InvalidShare { id, accuser, faulty, blame } => {
-          vec![Transaction::InvalidDkgShare {
+          // Check if the MuSig signature had any errors as if so, we need to provide
+          // RemoveParticipantDueToDkg
+          // As for the safety of calling error_generating_key_pair, the processor is presumed
+          // to only send InvalidShare or GeneratedKeyPair for a given attempt
+          let mut txs = if let Some(faulty) =
+            crate::tributary::error_generating_key_pair(&mut txn, key, spec, id.attempt)
+          {
+            vec![Transaction::RemoveParticipantDueToDkg {
+              attempt: id.attempt,
+              participant: faulty,
+            }]
+          } else {
+            vec![]
+          };
+
+          txs.push(Transaction::InvalidDkgShare {
             attempt: id.attempt,
             accuser,
             faulty,
             blame,
             signed: Transaction::empty_signed(),
-          }]
+          });
+
+          txs
         }
         key_gen::ProcessorMessage::GeneratedKeyPair { id, substrate_key, network_key } => {
           // TODO2: Check the KeyGenId fields
@@ -503,7 +454,6 @@ async fn handle_processor_message<D: Db, P: P2p>(
             id.attempt,
           );
 
-          // TODO: Move this into generated_key_pair?
           match share {
             Ok(share) => {
               vec![Transaction::DkgConfirmed {
@@ -513,32 +463,14 @@ async fn handle_processor_message<D: Db, P: P2p>(
               }]
             }
             Err(p) => {
-              let participant = spec
-                .reverse_lookup_i(
-                  &crate::tributary::removed_as_of_dkg_attempt(&txn, spec.genesis(), id.attempt)
-                    .expect("participating in DKG attempt yet we didn't save who was removed"),
-                  p,
-                )
-                .unwrap();
-              vec![Transaction::RemoveParticipantDueToDkg {
-                participant,
-                signed: Transaction::empty_signed(),
-              }]
+              vec![Transaction::RemoveParticipantDueToDkg { attempt: id.attempt, participant: p }]
             }
           }
         }
+        // This is a response to the ordered VerifyBlame, which is why this satisfies the provided
+        // transaction's needs to be perfectly ordered
         key_gen::ProcessorMessage::Blame { id, participant } => {
-          let participant = spec
-            .reverse_lookup_i(
-              &crate::tributary::removed_as_of_dkg_attempt(&txn, spec.genesis(), id.attempt)
-                .expect("participating in DKG attempt yet we didn't save who was removed"),
-              participant,
-            )
-            .unwrap();
-          vec![Transaction::RemoveParticipantDueToDkg {
-            participant,
-            signed: Transaction::empty_signed(),
-          }]
+          vec![Transaction::RemoveParticipantDueToDkg { attempt: id.attempt, participant }]
         }
       },
       ProcessorMessage::Sign(msg) => match msg {
@@ -604,8 +536,7 @@ async fn handle_processor_message<D: Db, P: P2p>(
           // slash) and censor transactions (yet don't explicitly ban)
           vec![]
         }
-        coordinator::ProcessorMessage::CosignPreprocess { id, preprocesses } |
-        coordinator::ProcessorMessage::SlashReportPreprocess { id, preprocesses } => {
+        coordinator::ProcessorMessage::CosignPreprocess { id, preprocesses } => {
           vec![Transaction::SubstrateSign(SignData {
             plan: id.id,
             attempt: id.attempt,
@@ -720,8 +651,6 @@ async fn handle_processor_message<D: Db, P: P2p>(
         }
         #[allow(clippy::match_same_arms)] // Allowed to preserve layout
         coordinator::ProcessorMessage::CosignedBlock { .. } => unreachable!(),
-        #[allow(clippy::match_same_arms)]
-        coordinator::ProcessorMessage::SignedSlashReport { .. } => unreachable!(),
       },
       ProcessorMessage::Substrate(inner_msg) => match inner_msg {
         processor_messages::substrate::ProcessorMessage::Batch { .. } |
@@ -836,8 +765,8 @@ async fn handle_cosigns_and_batch_publication<D: Db, P: P2p>(
 ) {
   let mut tributaries = HashMap::new();
   'outer: loop {
-    // TODO: Create a better async flow for this
-    tokio::time::sleep(core::time::Duration::from_millis(100)).await;
+    // TODO: Create a better async flow for this, as this does still hammer this task
+    tokio::task::yield_now().await;
 
     match tributary_event.try_recv() {
       Ok(event) => match event {
@@ -1012,16 +941,16 @@ pub async fn run<D: Db, Pro: Processors, P: P2p>(
   key: Zeroizing<<Ristretto as Ciphersuite>::F>,
   p2p: P,
   processors: Pro,
-  serai: Arc<Serai>,
+  serai: Serai,
 ) {
+  let serai = Arc::new(serai);
+
   let (new_tributary_spec_send, mut new_tributary_spec_recv) = mpsc::unbounded_channel();
   // Reload active tributaries from the database
   for spec in ActiveTributaryDb::active_tributaries(&raw_db).1 {
     new_tributary_spec_send.send(spec).unwrap();
   }
 
-  let (perform_slash_report_send, mut perform_slash_report_recv) = mpsc::unbounded_channel();
-
   let (tributary_retired_send, mut tributary_retired_recv) = mpsc::unbounded_channel();
 
   // Handle new Substrate blocks
@@ -1031,7 +960,6 @@ pub async fn run<D: Db, Pro: Processors, P: P2p>(
     processors.clone(),
     serai.clone(),
     new_tributary_spec_send,
-    perform_slash_report_send,
     tributary_retired_send,
   ));
 
@@ -1086,12 +1014,10 @@ pub async fn run<D: Db, Pro: Processors, P: P2p>(
     let raw_db = raw_db.clone();
     let key = key.clone();
 
-    let specs = Arc::new(RwLock::new(HashMap::new()));
     let tributaries = Arc::new(RwLock::new(HashMap::new()));
     // Spawn a task to maintain a local view of the tributaries for whenever recognized_id is
     // called
     tokio::spawn({
-      let specs = specs.clone();
       let tributaries = tributaries.clone();
       let mut set_to_genesis = HashMap::new();
       async move {
@@ -1100,11 +1026,9 @@ pub async fn run<D: Db, Pro: Processors, P: P2p>(
             Ok(TributaryEvent::NewTributary(tributary)) => {
               set_to_genesis.insert(tributary.spec.set(), tributary.spec.genesis());
               tributaries.write().await.insert(tributary.spec.genesis(), tributary.tributary);
-              specs.write().await.insert(tributary.spec.set(), tributary.spec);
             }
             Ok(TributaryEvent::TributaryRetired(set)) => {
               if let Some(genesis) = set_to_genesis.remove(&set) {
-                specs.write().await.remove(&set);
                 tributaries.write().await.remove(&genesis);
               }
             }
@@ -1117,84 +1041,6 @@ pub async fn run<D: Db, Pro: Processors, P: P2p>(
       }
     });
 
-    // Also spawn a task to handle slash reports, as this needs such a view of tributaries
-    tokio::spawn({
-      let mut raw_db = raw_db.clone();
-      let key = key.clone();
-      let tributaries = tributaries.clone();
-      async move {
-        'task_loop: loop {
-          match perform_slash_report_recv.recv().await {
-            Some(set) => {
-              let (genesis, validators) = loop {
-                let specs = specs.read().await;
-                let Some(spec) = specs.get(&set) else {
-                  // If we don't have this Tributary because it's retired, break and move on
-                  if RetiredTributaryDb::get(&raw_db, set).is_some() {
-                    continue 'task_loop;
-                  }
-
-                  // This may happen if the task above is simply slow
-                  log::warn!("tributary we don't have yet is supposed to perform a slash report");
-                  continue;
-                };
-                break (spec.genesis(), spec.validators());
-              };
-
-              let mut slashes = vec![];
-              for (validator, _) in validators {
-                if validator == (<Ristretto as Ciphersuite>::generator() * key.deref()) {
-                  continue;
-                }
-                let validator = validator.to_bytes();
-
-                let fatally = tributary::FatallySlashed::get(&raw_db, genesis, validator).is_some();
-                // TODO: Properly type this
-                let points = if fatally {
-                  u32::MAX
-                } else {
-                  tributary::SlashPoints::get(&raw_db, genesis, validator).unwrap_or(0)
-                };
-                slashes.push(points);
-              }
-
-              let mut tx = Transaction::SlashReport(slashes, Transaction::empty_signed());
-              tx.sign(&mut OsRng, genesis, &key);
-
-              let mut first = true;
-              loop {
-                if !first {
-                  sleep(Duration::from_millis(100)).await;
-                }
-                first = false;
-
-                let tributaries = tributaries.read().await;
-                let Some(tributary) = tributaries.get(&genesis) else {
-                  // If we don't have this Tributary because it's retired, break and move on
-                  if RetiredTributaryDb::get(&raw_db, set).is_some() {
-                    break;
-                  }
-
-                  // This may happen if the task above is simply slow
-                  log::warn!("tributary we don't have yet is supposed to perform a slash report");
-                  continue;
-                };
-                // This is safe to perform multiple times and solely needs atomicity with regards
-                // to itself
-                // TODO: Should this not take a txn accordingly? It's best practice to take a txn,
-                // yet taking a txn fails to declare its achieved independence
-                let mut txn = raw_db.txn();
-                tributary::publish_signed_transaction(&mut txn, tributary, tx).await;
-                txn.commit();
-                break;
-              }
-            }
-            None => panic!("perform slash report sender closed"),
-          }
-        }
-      }
-    });
-
     move |set: ValidatorSet, genesis, id_type, id: Vec<u8>| {
       log::debug!("recognized ID {:?} {}", id_type, hex::encode(&id));
       let mut raw_db = raw_db.clone();
@@ -1356,10 +1202,11 @@ async fn main() {
     key_bytes.zeroize();
     key
   };
+  let p2p = LibP2p::new();
 
   let processors = Arc::new(MessageQueue::from_env(Service::Coordinator));
 
-  let serai = (async {
+  let serai = || async {
     loop {
       let Ok(serai) = Serai::new(format!(
         "http://{}:9944",
@@ -1372,10 +1219,8 @@ async fn main() {
         continue;
       };
       log::info!("made initial connection to Serai node");
-      return Arc::new(serai);
+      return serai;
     }
-  })
-  .await;
-  let p2p = LibP2p::new(serai.clone());
-  run(db, key, p2p, processors, serai).await
+  };
+  run(db, key, p2p, processors, serai().await).await
 }