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chore: flip if else arms for eip155 check (#6134)

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This commit is contained in:
Matthias Seitz
2024-01-19 18:11:05 +01:00
committed by GitHub
parent 77f38574e2
commit a18d1f5539
1 changed files with 6 additions and 6 deletions
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12
crates/primitives/src/transaction/signature.rs
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@@ -101,18 +101,18 @@ impl Signature {
let v = u64::decode(buf)?;
let r = Decodable::decode(buf)?;
let s = Decodable::decode(buf)?;
if v >= 35 {
// EIP-155: v = {0, 1} + CHAIN_ID * 2 + 35
let odd_y_parity = ((v - 35) % 2) != 0;
let chain_id = (v - 35) >> 1;
Ok((Signature { r, s, odd_y_parity }, Some(chain_id)))
} else {
if v < 35 {
// non-EIP-155 legacy scheme, v = 27 for even y-parity, v = 28 for odd y-parity
if v != 27 && v != 28 {
return Err(RlpError::Custom("invalid Ethereum signature (V is not 27 or 28)"))
}
let odd_y_parity = v == 28;
Ok((Signature { r, s, odd_y_parity }, None))
} else {
// EIP-155: v = {0, 1} + CHAIN_ID * 2 + 35
let odd_y_parity = ((v - 35) % 2) != 0;
let chain_id = (v - 35) >> 1;
Ok((Signature { r, s, odd_y_parity }, Some(chain_id)))
}
}