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Break Ethereum Deployer into crate

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This commit is contained in:
Luke Parker
2024-09-15 17:13:10 -04:00
parent eb9bce6862
commit 4bcea31c2a
20 changed files with 411 additions and 74 deletions
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23
processor/ethereum/ethereum-serai/src/crypto.rs
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@@ -15,11 +15,9 @@ use frost::{
pub use ethereum_schnorr_contract::*;
use alloy_core::primitives::{Parity, Signature as AlloySignature};
use alloy_core::primitives::{Parity, Signature as AlloySignature, Address};
use alloy_consensus::{SignableTransaction, Signed, TxLegacy};
use crate::abi::router::{Signature as AbiSignature};
pub(crate) fn keccak256(data: &[u8]) -> [u8; 32] {
alloy_core::primitives::keccak256(data).into()
}
@@ -28,11 +26,9 @@ pub(crate) fn hash_to_scalar(data: &[u8]) -> Scalar {
<Scalar as Reduce<KU256>>::reduce_bytes(&keccak256(data).into())
}
pub fn address(point: &ProjectivePoint) -> [u8; 20] {
pub(crate) 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()
**Address::from_raw_public_key(&encoded_point.as_ref()[1 .. 65])
}
/// Deterministically sign a transaction.
@@ -64,18 +60,15 @@ pub fn deterministically_sign(tx: &TxLegacy) -> Signed<TxLegacy> {
}
}
/// The HRAm to use for the Schnorr contract.
/// The HRAm to use for the Schnorr Solidity library.
///
/// This will panic if the public key being signed for is not representable within the Schnorr
/// Solidity library.
#[derive(Clone, Default)]
pub struct EthereumHram {}
impl Hram<Secp256k1> for EthereumHram {
#[allow(non_snake_case)]
fn hram(R: &ProjectivePoint, A: &ProjectivePoint, m: &[u8]) -> Scalar {
let x_coord = A.to_affine().x();
let mut data = address(R).to_vec();
data.extend(x_coord.as_slice());
data.extend(m);
<Scalar as Reduce<KU256>>::reduce_bytes(&keccak256(&data).into())
Signature::challenge(*R, &PublicKey::new(*A).unwrap(), m)
}
}