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Summary
When importing the trait
sha2::Digest, you have access to the digest function, which both shortens the code into one line and does not require a mutable instantiation. :)Gist Changes
fn hash(data: &[u8]) -> [u8; 32] { - let mut hasher = Sha256::new(); - hasher.update(data); - <[u8; 32]>::from(hasher.finalize_fixed()) + <[u8; 32]>::from(Sha256::digest(data)) }fn hash(data: &[u8]) -> [u8; 48] { - let mut hasher = Sha384::new(); - hasher.update(data); - <[u8; 48]>::from(hasher.finalize_fixed()) + <[u8; 48]>::from(Sha384::digest(data)) }I also added tests below my commits to show that operations are equivalent.