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Rename MultisigParams/MultisigKeys/MultisigView to Frost*

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This commit is contained in:
Luke Parker
2022-06-28 00:06:12 -04:00
parent 7c86e4593a
commit ac17645fc8
13 changed files with 79 additions and 78 deletions
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25
crypto/frost/src/key_gen.rs
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@@ -8,7 +8,7 @@ use multiexp::{multiexp_vartime, BatchVerifier};
use crate::{
curve::Curve,
FrostError, MultisigParams, MultisigKeys,
FrostError, FrostParams, FrostKeys,
schnorr::{self, SchnorrSignature},
validate_map
};
@@ -29,7 +29,7 @@ fn challenge<C: Curve>(context: &str, l: u16, R: &[u8], Am: &[u8]) -> C::F {
// the serialized commitments to be broadcasted over an authenticated channel to all parties
fn generate_key_r1<R: RngCore + CryptoRng, C: Curve>(
rng: &mut R,
params: &MultisigParams,
params: &FrostParams,
context: &str,
) -> (Vec<C::F>, Vec<u8>) {
let t = usize::from(params.t);
@@ -72,7 +72,7 @@ fn generate_key_r1<R: RngCore + CryptoRng, C: Curve>(
// Verify the received data from the first round of key generation
fn verify_r1<R: RngCore + CryptoRng, C: Curve>(
rng: &mut R,
params: &MultisigParams,
params: &FrostParams,
context: &str,
our_commitments: Vec<u8>,
mut serialized: HashMap<u16, Vec<u8>>,
@@ -149,7 +149,7 @@ fn polynomial<F: PrimeField>(
// counterparty to receive
fn generate_key_r2<R: RngCore + CryptoRng, C: Curve>(
rng: &mut R,
params: &MultisigParams,
params: &FrostParams,
context: &str,
coefficients: Vec<C::F>,
our_commitments: Vec<u8>,
@@ -190,12 +190,12 @@ fn generate_key_r2<R: RngCore + CryptoRng, C: Curve>(
/// broadcasted initially
fn complete_r2<R: RngCore + CryptoRng, C: Curve>(
rng: &mut R,
params: MultisigParams,
params: FrostParams,
mut secret_share: C::F,
commitments: HashMap<u16, Vec<C::G>>,
// Vec to preserve ownership
mut serialized: HashMap<u16, Vec<u8>>,
) -> Result<MultisigKeys<C>, FrostError> {
) -> Result<FrostKeys<C>, FrostError> {
validate_map(
&mut serialized,
&(1 ..= params.n()).into_iter().collect::<Vec<_>>(),
@@ -256,12 +256,13 @@ fn complete_r2<R: RngCore + CryptoRng, C: Curve>(
for i in 1 ..= params.n() {
verification_shares.insert(i, multiexp_vartime(&exponential(i, &stripes), C::LITTLE_ENDIAN));
}
// Removing this check would enable optimizing the above from t + (n * t) to t + ((n - 1) * t)
debug_assert_eq!(C::GENERATOR_TABLE * secret_share, verification_shares[&params.i()]);
// TODO: Clear serialized and shares
Ok(
MultisigKeys {
FrostKeys {
params,
secret_share,
group_key: stripes[0],
@@ -272,20 +273,20 @@ fn complete_r2<R: RngCore + CryptoRng, C: Curve>(
}
pub struct KeyGenMachine<C: Curve> {
params: MultisigParams,
params: FrostParams,
context: String,
_curve: PhantomData<C>,
}
pub struct SecretShareMachine<C: Curve> {
params: MultisigParams,
params: FrostParams,
context: String,
coefficients: Vec<C::F>,
our_commitments: Vec<u8>,
}
pub struct KeyMachine<C: Curve> {
params: MultisigParams,
params: FrostParams,
secret: C::F,
commitments: HashMap<u16, Vec<C::G>>,
}
@@ -293,7 +294,7 @@ pub struct KeyMachine<C: Curve> {
impl<C: Curve> KeyGenMachine<C> {
/// Creates a new machine to generate a key for the specified curve in the specified multisig
// The context string must be unique among multisigs
pub fn new(params: MultisigParams, context: String) -> KeyGenMachine<C> {
pub fn new(params: FrostParams, context: String) -> KeyGenMachine<C> {
KeyGenMachine { params, context, _curve: PhantomData }
}
@@ -351,7 +352,7 @@ impl<C: Curve> KeyMachine<C> {
self,
rng: &mut R,
shares: HashMap<u16, Vec<u8>>,
) -> Result<MultisigKeys<C>, FrostError> {
) -> Result<FrostKeys<C>, FrostError> {
complete_r2(rng, self.params, self.secret, self.commitments, shares)
}
}