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3.3.4 Use FROST context throughout Encryption

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This commit is contained in:
Luke Parker
2023-02-23 07:19:55 -05:00
parent 2d56d24d9c
commit 4d6a0bbd7d
3 changed files with 64 additions and 37 deletions
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22
crypto/dkg/src/tests/frost.rs
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@@ -13,6 +13,8 @@ use crate::{
type FrostEncryptedMessage<C> = EncryptedMessage<C, SecretShare<<C as Ciphersuite>::F>>;
type FrostSecretShares<C> = HashMap<Participant, FrostEncryptedMessage<C>>;
const CONTEXT: &str = "DKG Test Key Generation";
// Commit, then return enc key and shares
#[allow(clippy::type_complexity)]
fn commit_enc_keys_and_shares<R: RngCore + CryptoRng, C: Ciphersuite>(
@@ -27,7 +29,7 @@ fn commit_enc_keys_and_shares<R: RngCore + CryptoRng, C: Ciphersuite>(
let mut enc_keys = HashMap::new();
for i in (1 ..= PARTICIPANTS).map(Participant) {
let params = ThresholdParams::new(THRESHOLD, PARTICIPANTS, i).unwrap();
let machine = KeyGenMachine::<C>::new(params, "DKG Test Key Generation".to_string());
let machine = KeyGenMachine::<C>::new(params, CONTEXT.to_string());
let (machine, these_commitments) = machine.generate_coefficients(rng);
machines.insert(i, machine);
@@ -179,7 +181,12 @@ mod literal {
// We then malleate 1's blame proof, so 1 ends up malicious
// Doesn't simply invalidate the PoP as that won't have a blame statement
// By mutating the encrypted data, we do ensure a blame statement is created
secret_shares.get_mut(&TWO).unwrap().get_mut(&ONE).unwrap().invalidate_msg(&mut OsRng, TWO);
secret_shares
.get_mut(&TWO)
.unwrap()
.get_mut(&ONE)
.unwrap()
.invalidate_msg(&mut OsRng, CONTEXT, TWO);
let mut blame = None;
let machines = machines
@@ -209,7 +216,12 @@ mod literal {
let (mut machines, _, mut secret_shares) =
commit_enc_keys_and_shares::<_, Ristretto>(&mut OsRng);
secret_shares.get_mut(&TWO).unwrap().get_mut(&ONE).unwrap().invalidate_msg(&mut OsRng, TWO);
secret_shares
.get_mut(&TWO)
.unwrap()
.get_mut(&ONE)
.unwrap()
.invalidate_msg(&mut OsRng, CONTEXT, TWO);
let mut blame = None;
let machines = machines
@@ -240,7 +252,7 @@ mod literal {
secret_shares.get_mut(&ONE).unwrap().get_mut(&TWO).unwrap().invalidate_share_serialization(
&mut OsRng,
b"FROST",
CONTEXT,
ONE,
enc_keys[&TWO],
);
@@ -273,7 +285,7 @@ mod literal {
secret_shares.get_mut(&ONE).unwrap().get_mut(&TWO).unwrap().invalidate_share_value(
&mut OsRng,
b"FROST",
CONTEXT,
ONE,
enc_keys[&TWO],
);