Remove deprecated APIs from dalek-ff-group

For backwards compatibility, we now use as a patch (as prior done with
`ciphersuite`).

Removes `crypto-bigint 0.5` from the tree and shapes up what the next release
will look like.

Cargo.lock

@@ -1939,7 +1939,7 @@ name = "ciphersuite"
 version = "0.4.99"
 dependencies = [
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
 ]
 
 [[package]]
@@ -2457,7 +2457,6 @@ name = "dalek-ff-group"
 version = "0.4.6"
 dependencies = [
  "ciphersuite 0.4.2",
- "crypto-bigint 0.5.5",
  "crypto-bigint 0.6.1",
  "curve25519-dalek",
  "digest 0.10.7",
@@ -2470,6 +2469,16 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "dalek-ff-group"
+version = "0.4.99"
+dependencies = [
+ "crypto-bigint 0.5.5",
+ "crypto-bigint 0.6.1",
+ "dalek-ff-group 0.4.6",
+ "prime-field",
+]
+
 [[package]]
 name = "darling"
 version = "0.20.11"
@@ -2795,7 +2804,7 @@ dependencies = [
  "blake2 0.11.0-rc.0",
  "ciphersuite 0.4.2",
  "ciphersuite-kp256",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg",
  "dkg-recovery",
  "ec-divisors",
@@ -2820,7 +2829,7 @@ name = "dkg-musig"
 version = "0.6.0"
 dependencies = [
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg",
  "dkg-recovery",
  "multiexp",
@@ -2913,7 +2922,7 @@ name = "ec-divisors"
 version = "0.1.0"
 source = "git+https://github.com/monero-oxide/monero-oxide?rev=a6f8797007e768488568b821435cf5006517a962#a6f8797007e768488568b821435cf5006517a962"
 dependencies = [
- "dalek-ff-group",
+ "dalek-ff-group 0.4.99",
  "ff",
  "group",
  "rand_core 0.6.4",
@@ -3025,7 +3034,7 @@ dependencies = [
  "blake2 0.11.0-rc.0",
  "ciphersuite 0.4.2",
  "curve25519-dalek",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "ff-group-tests",
  "generalized-bulletproofs-ec-gadgets",
  "hex",
@@ -3535,7 +3544,7 @@ name = "frost-schnorrkel"
 version = "0.2.0"
 dependencies = [
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "flexible-transcript",
  "group",
  "modular-frost",
@@ -6074,7 +6083,7 @@ version = "0.10.1"
 dependencies = [
  "ciphersuite 0.4.2",
  "ciphersuite-kp256",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg",
  "dkg-dealer",
  "dkg-recovery",
@@ -6148,7 +6157,7 @@ version = "0.1.0"
 source = "git+https://github.com/monero-oxide/monero-oxide?rev=6966575e05fe09b77674c46984b21686ed9304ff#6966575e05fe09b77674c46984b21686ed9304ff"
 dependencies = [
  "curve25519-dalek",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.99",
  "flexible-transcript",
  "group",
  "modular-frost",
@@ -6170,7 +6179,7 @@ source = "git+https://github.com/monero-oxide/monero-oxide?rev=6966575e05fe09b77
 dependencies = [
  "crypto-bigint 0.5.5",
  "curve25519-dalek",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.99",
  "group",
  "monero-io",
  "sha3 0.10.8",
@@ -6267,7 +6276,7 @@ version = "0.1.0"
 source = "git+https://github.com/monero-oxide/monero-oxide?rev=6966575e05fe09b77674c46984b21686ed9304ff#6966575e05fe09b77674c46984b21686ed9304ff"
 dependencies = [
  "curve25519-dalek",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.99",
  "flexible-transcript",
  "hex",
  "modular-frost",
@@ -6318,7 +6327,7 @@ dependencies = [
 name = "multiexp"
 version = "0.4.2"
 dependencies = [
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "ff",
  "group",
  "k256",
@@ -9456,7 +9465,7 @@ name = "schnorr-signatures"
 version = "0.5.2"
 dependencies = [
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "flexible-transcript",
  "hex",
  "multiexp",
@@ -9741,7 +9750,7 @@ dependencies = [
  "borsh",
  "ciphersuite 0.4.2",
  "ciphersuite-kp256",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg-musig",
  "dockertest",
  "frame-system",
@@ -9802,7 +9811,7 @@ dependencies = [
  "blake2 0.11.0-rc.0",
  "borsh",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg-musig",
  "env_logger",
  "flexible-transcript",
@@ -9893,7 +9902,7 @@ dependencies = [
  "blake2 0.11.0-rc.0",
  "borsh",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg",
  "log",
  "parity-scale-codec",
@@ -10157,7 +10166,7 @@ version = "0.1.0"
 dependencies = [
  "borsh",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "env_logger",
  "flexible-transcript",
  "hex",
@@ -10178,7 +10187,7 @@ name = "serai-message-queue-tests"
 version = "0.1.0"
 dependencies = [
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dockertest",
  "hex",
  "rand_core 0.6.4",
@@ -10195,7 +10204,7 @@ version = "0.1.0"
 dependencies = [
  "borsh",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg-evrf",
  "log",
  "modular-frost",
@@ -10225,7 +10234,7 @@ version = "0.1.0"
 dependencies = [
  "bitcoin-serai",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg",
  "dkg-evrf",
  "embedwards25519",
@@ -10247,7 +10256,7 @@ dependencies = [
  "ciphersuite-kp256",
  "clap",
  "curve25519-dalek",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "embedwards25519",
  "frame-benchmarking",
  "futures-util",
@@ -10298,7 +10307,7 @@ name = "serai-orchestrator"
 version = "0.0.1"
 dependencies = [
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "embedwards25519",
  "flexible-transcript",
  "hex",
@@ -10536,7 +10545,7 @@ dependencies = [
  "blake2 0.11.0-rc.0",
  "borsh",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "frost-schnorrkel",
  "log",
  "modular-frost",
@@ -10714,7 +10723,7 @@ version = "0.1.0"
 dependencies = [
  "bitvec",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg-musig",
  "frame-support",
  "frame-system",
@@ -10749,7 +10758,7 @@ version = "0.1.0"
 dependencies = [
  "borsh",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "dkg-musig",
  "parity-scale-codec",
  "scale-info",
@@ -12602,7 +12611,7 @@ version = "0.1.0"
 dependencies = [
  "blake2 0.11.0-rc.0",
  "ciphersuite 0.4.2",
- "dalek-ff-group",
+ "dalek-ff-group 0.4.6",
  "flexible-transcript",
  "futures-channel",
  "futures-util",

Cargo.toml

@@ -14,10 +14,12 @@ members = [
   "patches/option-ext",
   "patches/directories-next",
 
-  # monero-oxide expects ciphersuite, yet the ciphersuite in-tree here has breaking changes
+  # monero-oxide expects `ciphersuite`, yet the `ciphersuite` in-tree here has breaking changes
-  # This re-exports the in-tree ciphersuite _without_ changes breaking to monero-oxide
+  # This re-exports the in-tree `ciphersuite` _without_ changes breaking to monero-oxide
   # Not included in workspace to prevent having two crates with the same name (an error)
   # "patches/ciphersuite",
+  # Same for `dalek-ff-group`
+  # "patches/dalek-ff-group",
 
   "common/std-shims",
   "common/zalloc",
@@ -196,7 +198,7 @@ simple-request = { path = "common/request" }
 multiexp = { path = "crypto/multiexp" }
 flexible-transcript = { path = "crypto/transcript" }
 ciphersuite = { path = "patches/ciphersuite" }
-dalek-ff-group = { path = "crypto/dalek-ff-group" }
+dalek-ff-group = { path = "patches/dalek-ff-group" }
 minimal-ed448 = { path = "crypto/ed448" }
 modular-frost = { path = "crypto/frost" }
 

crypto/dalek-ff-group/Cargo.toml

@@ -28,7 +28,6 @@ sha2 = { version = "0.11.0-rc.0", default-features = false }
 prime-field = { path = "../prime-field", default-features = false }
 ciphersuite = { version = "0.4.2", path = "../ciphersuite", default-features = false }
 
-crypto-bigint-05 = { package = "crypto-bigint", version = "0.5", default-features = false, features = ["zeroize"] }
 crypto-bigint = { version = "0.6", default-features = false, features = ["zeroize"] }
 
 curve25519-dalek = { version = ">= 4.0, < 4.2", default-features = false, features = ["zeroize", "digest", "group", "precomputed-tables"] }
@@ -39,6 +38,6 @@ rand_core = { version = "0.6", default-features = false, features = ["std"] }
 ff-group-tests = { path = "../ff-group-tests" }
 
 [features]
-alloc = ["zeroize/alloc", "digest/alloc", "prime-field/alloc", "ciphersuite/alloc", "curve25519-dalek/alloc"]
+alloc = ["zeroize/alloc", "digest/alloc", "prime-field/alloc", "ciphersuite/alloc", "crypto-bigint/alloc", "curve25519-dalek/alloc"]
 std = ["alloc", "zeroize/std", "subtle/std", "rand_core/std", "digest/std", "prime-field/std", "ciphersuite/std"]
 default = ["std"]

crypto/dalek-ff-group/src/lib.rs

@@ -494,31 +494,3 @@ prime_field::odd_prime_field_with_specific_repr!(
   false,
   crate::ThirtyTwoArray
 );
-
-impl FieldElement {
-  /// Create a FieldElement from a `crypto_bigint::U256`.
-  ///
-  /// This will reduce the `U256` by the modulus, into a member of the field.
-  #[deprecated]
-  pub const fn from_u256(u256: &crypto_bigint_05::U256) -> Self {
-    const MODULUS: crypto_bigint::U256 = crypto_bigint::U256::from_be_hex(
-      "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed",
-    );
-    let mut u256 = crypto_bigint::U256::from_words(*u256.as_words());
-    loop {
-      let result = FieldElement::from_bytes(&u256.to_le_bytes());
-      if let Some(result) = result {
-        return result;
-      }
-      u256 = u256.wrapping_sub(&MODULUS);
-    }
-  }
-
-  /// Create a `FieldElement` from the reduction of a 512-bit number.
-  ///
-  /// The bytes are interpreted in little-endian format.
-  #[deprecated]
-  pub fn wide_reduce(value: [u8; 64]) -> Self {
-    <FieldElement as ::ciphersuite::group::ff::FromUniformBytes<_>>::from_uniform_bytes(&value)
-  }
-}

patches/ciphersuite/README.md

@@ -1,4 +1,4 @@
 # Ciphersuite
 
-Patch for the `crates.io` ciphersuite to use the in-tree ciphersuite, resolving
+Patch for the `crates.io` `ciphersuite` to use the in-tree `ciphersuite`,
-breaking changes made since.
+resolving relevant breaking changes made since.

patches/dalek-ff-group/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "dalek-ff-group"
+version = "0.4.99"
+description = "ff/group bindings around curve25519-dalek"
+license = "MIT"
+repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dalek-ff-group"
+authors = ["Luke Parker <lukeparker5132@gmail.com>"]
+keywords = ["curve25519", "ed25519", "ristretto", "dalek", "group"]
+edition = "2021"
+rust-version = "1.85"
+
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
+[lints]
+workspace = true
+
+[dependencies]
+dalek-ff-group = { path = "../../crypto/dalek-ff-group", default-features = false }
+
+crypto-bigint-05 = { package = "crypto-bigint", version = "0.5", default-features = false, features = ["zeroize"] }
+crypto-bigint = { version = "0.6", default-features = false, features = ["zeroize"] }
+prime-field = { path = "../../crypto/prime-field", default-features = false }
+
+[features]
+alloc = ["dalek-ff-group/alloc", "crypto-bigint-05/alloc", "crypto-bigint/alloc", "prime-field/alloc"]
+std = ["alloc", "dalek-ff-group/std", "prime-field/std"]
+default = ["std"]

patches/dalek-ff-group/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2022-2025 Luke Parker
+
+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.

patches/dalek-ff-group/README.md

@@ -0,0 +1,4 @@
+# Dalek FF/Group
+
+Patch for the `crates.io` `dalek-ff-group` to use the in-tree `dalek-ff-group`,
+resolving relevant breaking changes made since.

patches/dalek-ff-group/src/lib.rs

@@ -0,0 +1,44 @@
+#![allow(deprecated)]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![no_std] // Prevents writing new code, in what should be a simple wrapper, which requires std
+#![doc = include_str!("../README.md")]
+#![allow(clippy::redundant_closure_call)]
+
+pub use dalek_ff_group::{Scalar, EdwardsPoint, RistrettoPoint, Ed25519, Ristretto};
+
+type ThirtyTwoArray = [u8; 32];
+prime_field::odd_prime_field_with_specific_repr!(
+  FieldElement,
+  "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed",
+  "02",
+  false,
+  crate::ThirtyTwoArray
+);
+
+impl FieldElement {
+  /// Create a FieldElement from a `crypto_bigint::U256`.
+  ///
+  /// This will reduce the `U256` by the modulus, into a member of the field.
+  #[deprecated]
+  pub const fn from_u256(u256: &crypto_bigint_05::U256) -> Self {
+    const MODULUS: crypto_bigint::U256 = crypto_bigint::U256::from_be_hex(
+      "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffed",
+    );
+    let mut u256 = crypto_bigint::U256::from_words(*u256.as_words());
+    loop {
+      let result = FieldElement::from_bytes(&u256.to_le_bytes());
+      if let Some(result) = result {
+        return result;
+      }
+      u256 = u256.wrapping_sub(&MODULUS);
+    }
+  }
+
+  /// Create a `FieldElement` from the reduction of a 512-bit number.
+  ///
+  /// The bytes are interpreted in little-endian format.
+  #[deprecated]
+  pub fn wide_reduce(value: [u8; 64]) -> Self {
+    <FieldElement as prime_field::ff::FromUniformBytes<_>>::from_uniform_bytes(&value)
+  }
+}