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Futher document hash_msg

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Luke Parker 2022-04-23 12:59:53 -04:00
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6
sign/frost/src/lib.rs
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@ -59,6 +59,12 @@ pub trait Curve: Clone + Copy + PartialEq + Eq + Debug {
/// Hash the message as needed to calculate the binding factor
/// H3 from the IETF draft
// This doesn't actually need to be part of Curve as it does nothing with the curve
// This also solely relates to FROST and with a proper Algorithm/HRAM, all projects using
// aggregatable signatures over this curve will work without issue, albeit potentially with
// incompatibilities between FROST implementations
// It is kept here as Curve + HRAM is effectively a ciphersuite according to the IETF draft
// and moving it to Schnorr would force all of them into being ciphersuite-specific
fn hash_msg(msg: &[u8]) -> Vec<u8>;
/// Field element from hash, used in key generation and to calculate the binding factor