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Remove Monero's test FROST file in favor of FROST"s exposed test files

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Moves private key recovery for given keys into FROST.
This commit is contained in:
Luke Parker
2022-05-30 16:37:51 -04:00
parent ce4c899422
commit bfa15283f5
3 changed files with 23 additions and 105 deletions
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16
crypto/frost/src/tests/mod.rs
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@@ -2,9 +2,12 @@ use std::{rc::Rc, collections::HashMap};
use rand_core::{RngCore, CryptoRng};
use ff::Field;
use crate::{
Curve,
MultisigParams, MultisigKeys,
lagrange,
key_gen,
algorithm::Algorithm,
sign::{StateMachine, AlgorithmMachine}
@@ -102,6 +105,19 @@ pub fn key_gen<R: RngCore + CryptoRng, C: Curve>(
keys
}
pub fn recover<C: Curve>(keys: &HashMap<u16, MultisigKeys<C>>) -> C::F {
let first = keys.values().next().expect("no keys provided");
assert!(keys.len() >= first.params().t().into(), "not enough keys provided");
let included = keys.keys().cloned().collect::<Vec<_>>();
let group_private = keys.iter().fold(
C::F::zero(),
|accum, (i, keys)| accum + (keys.secret_share() * lagrange::<C::F>(*i, &included))
);
assert_eq!(C::generator_table() * group_private, first.group_key(), "failed to recover keys");
group_private
}
pub fn algorithm_machines<R: RngCore, C: Curve, A: Algorithm<C>>(
rng: &mut R,
algorithm: A,