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Create a dedicated crate for the DKG (#141)

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* Add dkg crate

* Remove F_len and G_len

They're generally no longer used.

* Replace hash_to_vec with a provided method around associated type H: Digest

Part of trying to minimize this trait so it can be moved elsewhere. Vec, 
which isn't std, may have been a blocker.

* Encrypt secret shares within the FROST library

Reduces requirements on callers in order to be correct.

* Update usage of Zeroize within FROST

* Inline functions in key_gen

There was no reason to have them separated as they were. sign probably 
has the same statement available, yet that isn't the focus right now.

* Add a ciphersuite package which provides hash_to_F

* Set the Ciphersuite version to something valid

* Have ed448 export Scalar/FieldElement/Point at the top level

* Move FROST over to Ciphersuite

* Correct usage of ff in ciphersuite

* Correct documentation handling

* Move Schnorr signatures to their own crate

* Remove unused feature from schnorr

* Fix Schnorr tests

* Split DKG into a separate crate

* Add serialize to Commitments and SecretShare

Helper for buf = vec![]; .write(buf).unwrap(); buf

* Move FROST over to the new dkg crate

* Update Monero lib to latest FROST

* Correct ethereum's usage of features

* Add serialize to GeneratorProof

* Add serialize helper function to FROST

* Rename AddendumSerialize to WriteAddendum

* Update processor

* Slight fix to processor
This commit is contained in:
Luke Parker
2022-10-29 03:54:42 -05:00
committed by GitHub
parent cbceaff678
commit 2379855b31
50 changed files with 2076 additions and 1601 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
processor/src/coin/mod.rs
View File

@@ -4,7 +4,11 @@ use async_trait::async_trait;
use thiserror::Error;
use transcript::RecommendedTranscript;
use frost::{curve::Curve, FrostKeys, sign::PreprocessMachine};
use frost::{
curve::{Ciphersuite, Curve},
ThresholdKeys,
sign::PreprocessMachine,
};
pub mod monero;
pub use self::monero::Monero;
@@ -45,14 +49,14 @@ pub trait Coin {
const MAX_OUTPUTS: usize; // TODO: Decide if this includes change or not
// Doesn't have to take self, enables some level of caching which is pleasant
fn address(&self, key: <Self::Curve as Curve>::G) -> Self::Address;
fn address(&self, key: <Self::Curve as Ciphersuite>::G) -> Self::Address;
async fn get_latest_block_number(&self) -> Result<usize, CoinError>;
async fn get_block(&self, number: usize) -> Result<Self::Block, CoinError>;
async fn get_outputs(
&self,
block: &Self::Block,
key: <Self::Curve as Curve>::G,
key: <Self::Curve as Ciphersuite>::G,
) -> Result<Vec<Self::Output>, CoinError>;
// TODO: Remove
@@ -60,7 +64,7 @@ pub trait Coin {
async fn prepare_send(
&self,
keys: FrostKeys<Self::Curve>,
keys: ThresholdKeys<Self::Curve>,
transcript: RecommendedTranscript,
block_number: usize,
inputs: Vec<Self::Output>,

6
processor/src/coin/monero.rs
View File

@@ -4,7 +4,7 @@ use curve25519_dalek::scalar::Scalar;
use dalek_ff_group as dfg;
use transcript::RecommendedTranscript;
use frost::{curve::Ed25519, FrostKeys};
use frost::{curve::Ed25519, ThresholdKeys};
use monero_serai::{
transaction::Transaction,
@@ -55,7 +55,7 @@ impl OutputTrait for Output {
#[derive(Debug)]
pub struct SignableTransaction {
keys: FrostKeys<Ed25519>,
keys: ThresholdKeys<Ed25519>,
transcript: RecommendedTranscript,
// Monero height, defined as the length of the chain
height: usize,
@@ -157,7 +157,7 @@ impl Coin for Monero {
async fn prepare_send(
&self,
keys: FrostKeys<Ed25519>,
keys: ThresholdKeys<Ed25519>,
transcript: RecommendedTranscript,
block_number: usize,
mut inputs: Vec<Output>,