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feat: use buffered ancestor to determine sync target (#2802)

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Co-authored-by: Roman Krasiuk <rokrassyuk@gmail.com>
This commit is contained in:
Dan Cline
2023-05-31 14:06:16 -04:00
committed by GitHub
parent 9cd32e516a
commit 1641f555f2
16 changed files with 196 additions and 63 deletions
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2
crates/primitives/src/transaction/signature.rs
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@ -113,7 +113,7 @@ impl Signature {
})
}
/// Recover signature from hash.
/// Recover signer address from message hash.
pub fn recover_signer(&self, hash: H256) -> Option<Address> {
let mut sig: [u8; 65] = [0; 65];

7
crates/primitives/src/transaction/util.rs
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@ -10,12 +10,17 @@ pub(crate) mod secp256k1 {
};
use revm_primitives::{B256, U256};
/// secp256k1 signer recovery
/// Recovers the address of the sender using secp256k1 pubkey recovery.
///
/// Converts the public key into an ethereum address by hashing the public key with keccak256.
pub fn recover_signer(sig: &[u8; 65], msg: &[u8; 32]) -> Result<Address, Error> {
let sig =
RecoverableSignature::from_compact(&sig[0..64], RecoveryId::from_i32(sig[64] as i32)?)?;
let public = SECP256K1.recover_ecdsa(&Message::from_slice(&msg[..32])?, &sig)?;
// strip out the first byte because that should be the SECP256K1_TAG_PUBKEY_UNCOMPRESSED
// tag returned by libsecp's uncompressed pubkey serialization
let hash = keccak256(&public.serialize_uncompressed()[1..]);
Ok(Address::from_slice(&hash[12..]))
}