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Fixes evm ripemd160 impl to use 32 bytes (#7296)

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Co-authored-by: Alan <alan@ip-172-31-37-206.us-east-2.compute.internal>
This commit is contained in:
Alan Sapede
2020-10-09 17:34:07 -04:00
committed by GitHub
parent a992770318
commit a954ce5f2d
1 changed files with 3 additions and 2 deletions
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substrate/frame/evm/src/precompiles.rs
+3 -2
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@@ -145,8 +145,9 @@ impl Precompile for Ripemd160 {
) -> core::result::Result<(ExitSucceed, Vec<u8>, usize), ExitError> {
let cost = ensure_linear_cost(target_gas, input.len(), 600, 120)?;
let ret = ripemd160::Ripemd160::digest(input).to_vec();
Ok((ExitSucceed::Returned, ret, cost))
let mut ret = [0u8; 32];
ret[12..32].copy_from_slice(&ripemd160::Ripemd160::digest(input));
Ok((ExitSucceed::Returned, ret.to_vec(), cost))
}
}