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2379855b31
* Add dkg crate * Remove F_len and G_len They're generally no longer used. * Replace hash_to_vec with a provided method around associated type H: Digest Part of trying to minimize this trait so it can be moved elsewhere. Vec, which isn't std, may have been a blocker. * Encrypt secret shares within the FROST library Reduces requirements on callers in order to be correct. * Update usage of Zeroize within FROST * Inline functions in key_gen There was no reason to have them separated as they were. sign probably has the same statement available, yet that isn't the focus right now. * Add a ciphersuite package which provides hash_to_F * Set the Ciphersuite version to something valid * Have ed448 export Scalar/FieldElement/Point at the top level * Move FROST over to Ciphersuite * Correct usage of ff in ciphersuite * Correct documentation handling * Move Schnorr signatures to their own crate * Remove unused feature from schnorr * Fix Schnorr tests * Split DKG into a separate crate * Add serialize to Commitments and SecretShare Helper for buf = vec![]; .write(buf).unwrap(); buf * Move FROST over to the new dkg crate * Update Monero lib to latest FROST * Correct ethereum's usage of features * Add serialize to GeneratorProof * Add serialize helper function to FROST * Rename AddendumSerialize to WriteAddendum * Update processor * Slight fix to processor
45 lines
959 B
Rust
45 lines
959 B
Rust
use zeroize::Zeroize;
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use sha2::{Digest, Sha512};
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use group::Group;
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use dalek_ff_group::Scalar;
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use crate::Ciphersuite;
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macro_rules! dalek_curve {
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(
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$feature: literal,
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$Ciphersuite: ident,
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$Point: ident,
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$ID: literal
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) => {
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use dalek_ff_group::$Point;
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#[derive(Clone, Copy, PartialEq, Eq, Debug, Zeroize)]
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pub struct $Ciphersuite;
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impl Ciphersuite for $Ciphersuite {
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type F = Scalar;
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type G = $Point;
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type H = Sha512;
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const ID: &'static [u8] = $ID;
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fn generator() -> Self::G {
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$Point::generator()
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}
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fn hash_to_F(dst: &[u8], data: &[u8]) -> Self::F {
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Scalar::from_hash(Sha512::new_with_prefix(&[dst, data].concat()))
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}
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}
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};
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}
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#[cfg(any(test, feature = "ristretto"))]
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dalek_curve!("ristretto", Ristretto, RistrettoPoint, b"ristretto");
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#[cfg(feature = "ed25519")]
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dalek_curve!("ed25519", Ed25519, EdwardsPoint, b"edwards25519");
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