mirror of
https://github.com/serai-dex/serai.git
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Revert "Implement a FROST algorithm for Schnorrkel"
This reverts commit 8ef8b5ca6f.
This commit is contained in:
Luke Parker
parent
8ef8b5ca6f
commit
be05e0dd47
6 changed files with 3 additions and 258 deletions
64
Cargo.lock
generated
64
Cargo.lock
generated
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@ -1387,19 +1387,6 @@ dependencies = [
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"zeroize",
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]
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[[package]]
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name = "curve25519-dalek-ng"
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version = "4.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1c359b7249347e46fb28804470d071c921156ad62b3eef5d34e2ba867533dec8"
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dependencies = [
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"byteorder",
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"digest 0.9.0",
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"rand_core 0.6.4",
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"subtle-ng",
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"zeroize",
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]
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[[package]]
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name = "cxx"
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version = "1.0.86"
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@ -2614,19 +2601,6 @@ dependencies = [
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"sp-api",
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]
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[[package]]
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name = "frost-schnorrkel"
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version = "0.1.0"
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dependencies = [
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"ciphersuite",
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"group",
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"modular-frost",
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"rand_core 0.6.4",
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"schnorr-signatures",
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"schnorrkel 0.10.2",
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"zeroize",
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]
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[[package]]
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name = "fs2"
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version = "0.4.3"
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@ -7133,23 +7107,6 @@ dependencies = [
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"zeroize",
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]
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[[package]]
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name = "schnorrkel"
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version = "0.10.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "844b7645371e6ecdf61ff246ba1958c29e802881a749ae3fb1993675d210d28d"
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dependencies = [
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"arrayref",
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"arrayvec 0.7.2",
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"curve25519-dalek-ng",
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"merlin 3.0.0",
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"rand_core 0.6.4",
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"serde_bytes",
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"sha2 0.9.9",
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"subtle-ng",
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"zeroize",
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]
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[[package]]
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name = "scopeguard"
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version = "1.1.0"
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@ -7412,15 +7369,6 @@ dependencies = [
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"serde_json",
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]
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[[package]]
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name = "serde_bytes"
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version = "0.11.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "718dc5fff5b36f99093fc49b280cfc96ce6fc824317783bff5a1fed0c7a64819"
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dependencies = [
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"serde",
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]
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[[package]]
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name = "serde_derive"
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version = "1.0.152"
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@ -7804,7 +7752,7 @@ dependencies = [
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"rand 0.7.3",
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"regex",
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"scale-info",
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"schnorrkel 0.9.1",
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"schnorrkel",
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"secp256k1",
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"secrecy",
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"serde",
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@ -7957,7 +7905,7 @@ dependencies = [
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"merlin 2.0.1",
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"parity-scale-codec",
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"parking_lot 0.12.1",
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"schnorrkel 0.9.1",
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"schnorrkel",
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"serde",
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"sp-core",
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"sp-externalities",
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@ -8396,7 +8344,7 @@ checksum = "49eee6965196b32f882dd2ee85a92b1dbead41b04e53907f269de3b0dc04733c"
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dependencies = [
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"hmac 0.11.0",
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"pbkdf2 0.8.0",
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"schnorrkel 0.9.1",
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"schnorrkel",
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"sha2 0.9.9",
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"zeroize",
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]
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@ -8466,12 +8414,6 @@ version = "2.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"
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[[package]]
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name = "subtle-ng"
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version = "2.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "734676eb262c623cec13c3155096e08d1f8f29adce39ba17948b18dad1e54142"
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[[package]]
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name = "svm-rs"
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version = "0.2.18"
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@ -15,7 +15,6 @@ members = [
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"crypto/dleq",
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"crypto/dkg",
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"crypto/frost",
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"crypto/schnorrkel",
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"coins/ethereum",
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"coins/monero/generators",
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@ -1,28 +0,0 @@
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[package]
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name = "frost-schnorrkel"
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version = "0.1.0"
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description = "modular-frost Algorithm compatible with Schnorrkel"
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license = "MIT"
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repository = "https://github.com/serai-dex/serai/tree/develop/crypto/schnorrkel"
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authors = ["Luke Parker <lukeparker5132@gmail.com>"]
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keywords = ["frost", "multisig", "threshold", "schnorrkel"]
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edition = "2021"
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[package.metadata.docs.rs]
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all-features = true
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rustdoc-args = ["--cfg", "docsrs"]
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[dependencies]
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rand_core = "0.6"
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zeroize = "1.5"
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group = "0.12"
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ciphersuite = { path = "../ciphersuite", version = "0.1", features = ["std", "ristretto"] }
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schnorr = { package = "schnorr-signatures", path = "../schnorr", version = "0.2" }
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frost = { path = "../frost", package = "modular-frost", version = "0.5", features = ["ristretto"] }
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schnorrkel = "0.10"
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[dev-dependencies]
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frost = { path = "../frost", package = "modular-frost", version = "0.5", features = ["ristretto", "tests"] }
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@ -1,21 +0,0 @@
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MIT License
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Copyright (c) 2023 Luke Parker
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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@ -1,133 +0,0 @@
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use std::io::{self, Read};
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use rand_core::{RngCore, CryptoRng};
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use zeroize::Zeroizing;
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use group::{ff::PrimeField, GroupEncoding};
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use ciphersuite::{Ciphersuite, Ristretto};
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use schnorr::SchnorrSignature;
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use frost::{
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ThresholdKeys, ThresholdView, FrostError,
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algorithm::{IetfTranscript, Hram, Algorithm, Schnorr},
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};
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use schnorrkel::{PublicKey, Signature, context::SigningTranscript, signing_context};
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type RistrettoPoint = <Ristretto as Ciphersuite>::G;
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type Scalar = <Ristretto as Ciphersuite>::F;
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#[cfg(test)]
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mod tests;
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#[derive(Clone)]
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struct SchnorrkelHram;
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impl Hram<Ristretto> for SchnorrkelHram {
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#[allow(non_snake_case)]
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fn hram(R: &RistrettoPoint, A: &RistrettoPoint, m: &[u8]) -> Scalar {
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let ctx_len =
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usize::try_from(u32::from_le_bytes(m[0 .. 4].try_into().expect("malformed message")))
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.unwrap();
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let mut t = signing_context(&m[4 .. (4 + ctx_len)]).bytes(&m[(4 + ctx_len) ..]);
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t.proto_name(b"Schnorr-sig");
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let convert =
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|point: &RistrettoPoint| PublicKey::from_bytes(&point.to_bytes()).unwrap().into_compressed();
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t.commit_point(b"sign:pk", &convert(A));
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t.commit_point(b"sign:R", &convert(R));
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Scalar::from_repr(t.challenge_scalar(b"sign:c").to_bytes()).unwrap()
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}
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}
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#[derive(Clone)]
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pub struct Schnorrkel {
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context: &'static [u8],
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schnorr: Schnorr<Ristretto, SchnorrkelHram>,
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msg: Option<Vec<u8>>,
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}
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impl Schnorrkel {
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pub fn new(context: &'static [u8]) -> Schnorrkel {
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Schnorrkel { context, schnorr: Schnorr::new(), msg: None }
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}
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}
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impl Algorithm<Ristretto> for Schnorrkel {
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type Transcript = IetfTranscript;
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type Addendum = ();
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type Signature = Signature;
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fn transcript(&mut self) -> &mut Self::Transcript {
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self.schnorr.transcript()
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}
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fn nonces(&self) -> Vec<Vec<<Ristretto as Ciphersuite>::G>> {
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self.schnorr.nonces()
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}
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fn preprocess_addendum<R: RngCore + CryptoRng>(
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&mut self,
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_: &mut R,
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_: &ThresholdKeys<Ristretto>,
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) {
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}
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fn read_addendum<R: Read>(&self, _: &mut R) -> io::Result<Self::Addendum> {
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Ok(())
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}
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fn process_addendum(
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&mut self,
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_: &ThresholdView<Ristretto>,
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_: u16,
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_: (),
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) -> Result<(), FrostError> {
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Ok(())
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}
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fn sign_share(
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&mut self,
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params: &ThresholdView<Ristretto>,
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nonce_sums: &[Vec<<Ristretto as Ciphersuite>::G>],
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nonces: Vec<Zeroizing<<Ristretto as Ciphersuite>::F>>,
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msg: &[u8],
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) -> <Ristretto as Ciphersuite>::F {
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self.msg = Some(msg.to_vec());
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self.schnorr.sign_share(
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params,
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nonce_sums,
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nonces,
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&[
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&u32::try_from(self.context.len()).expect("context exceeded 2^32 bytes").to_le_bytes(),
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self.context,
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msg,
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]
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.concat(),
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)
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}
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#[must_use]
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fn verify(
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&self,
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group_key: <Ristretto as Ciphersuite>::G,
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nonces: &[Vec<<Ristretto as Ciphersuite>::G>],
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sum: <Ristretto as Ciphersuite>::F,
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) -> Option<Self::Signature> {
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let mut sig = (SchnorrSignature::<Ristretto> { R: nonces[0][0], s: sum }).serialize();
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sig[63] |= 1 << 7;
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Some(Signature::from_bytes(&sig).unwrap()).filter(|sig| {
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PublicKey::from_bytes(&group_key.to_bytes())
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.unwrap()
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.verify(&mut signing_context(self.context).bytes(self.msg.as_ref().unwrap()), sig)
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.is_ok()
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})
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}
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fn verify_share(
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&self,
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verification_share: <Ristretto as Ciphersuite>::G,
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nonces: &[Vec<<Ristretto as Ciphersuite>::G>],
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share: <Ristretto as Ciphersuite>::F,
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) -> Result<Vec<(<Ristretto as Ciphersuite>::F, <Ristretto as Ciphersuite>::G)>, ()> {
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self.schnorr.verify_share(verification_share, nonces, share)
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}
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}
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@ -1,14 +0,0 @@
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use rand_core::OsRng;
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use frost::tests::{key_gen, algorithm_machines, sign};
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use crate::Schnorrkel;
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#[test]
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fn test() {
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let keys = key_gen(&mut OsRng);
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const CONTEXT: &[u8] = b"FROST Schnorrkel Test";
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let machines = algorithm_machines(&mut OsRng, Schnorrkel::new(CONTEXT), &keys);
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const MSG: &[u8] = b"Hello, World!";
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sign(&mut OsRng, Schnorrkel::new(CONTEXT), keys, machines, MSG);
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}
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