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Fixing test vector bug with envelope ciphertext serialization and updating VOPRF (#145)

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This commit is contained in:
Kevin Lewi
2021-02-21 18:44:36 -08:00
committed by GitHub
parent 4da6bbce0c
commit fa0fb48654
8 changed files with 177 additions and 225 deletions
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src/tests/voprf_test_vectors.rs
+15 -48
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@@ -16,8 +16,6 @@ struct VOPRFTestVectorParameters {
blind: Vec<u8>,
blinded_element: Vec<u8>,
evaluation_element: Vec<u8>,
unblinded_element: Vec<u8>,
info: Vec<u8>,
output: Vec<u8>,
}
@@ -26,26 +24,22 @@ struct VOPRFTestVectorParameters {
static OPRF_RISTRETTO255_SHA512: &'static [&str] = &[
r#"
{
"sksm": "c604c785ada70d77a5256ae21767de8c3304115237d262134f5e46e512cf8e03",
"sksm": "758cbac0e1eb4265d80f6e6489d9a74d788f7ddeda67d7fb3c08b08f44bda30a",
"input": "00",
"blind": "5ed895206bfc53316d307b23e46ecc6623afb3086da74189a416012be037e50b",
"blinded_element": "5cccd309ec729aebe398c53e19c0ab09c24a29f01036960bdad109852e7bdb44",
"evaluation_element": "86bd5eeabf29a87cb4a5c7207cb3ade5297e65f9b74c979bd3551891f4b21515",
"unblinded_element": "3c7f2d901c0d4f245503a186086fbdf5d8b4408432b25c5163e8b5a19c258348",
"info": "4f505246207465737420766563746f7273",
"output": "0bb570873cc0402ca38f1a2c395301f2a3627616e305f2bc54bb08c3f6ea9871eb71074e52e36b90778ba7c3e3429ef7170245c9e01647f3827fdef84d3ba930"
"blind": "c604c785ada70d77a5256ae21767de8c3304115237d262134f5e46e512cf8e03",
"blinded_element": "3c7f2d901c0d4f245503a186086fbdf5d8b4408432b25c5163e8b5a19c258348",
"evaluation_element": "fc6c2b854553bf1ed6674072ed0bde1a9911e02b4bd64aa02cfb428f30251e77",
"output": "d8ed12382086c74564ae19b7a2b5ed9bdc52656d1fc151faaae51aaba86291e8df0b2143a92f24d44d5efd0892e2e26721d27d88745343493634a66d3a925e3a"
}
"#,
r#"
{
"sksm": "c604c785ada70d77a5256ae21767de8c3304115237d262134f5e46e512cf8e03",
"sksm": "758cbac0e1eb4265d80f6e6489d9a74d788f7ddeda67d7fb3c08b08f44bda30a",
"input": "5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a",
"blind": "ed8366feb6b1d05d1f46acb727061e43aadfafe9c10e5a64e7518d63e3263503",
"blinded_element": "227d63ca69e93bd062193c1e97fff3d5ebf628f646009d77c4e22ba6429be154",
"evaluation_element": "063b91a12e7cbb98dfeb75d8a7eeb83aacf9fd6df7e0b4197466fb77a27fa631",
"unblinded_element": "804ec6774764ed50a0bbad0a5f477aa04df7323acab8f98ca6e468b7790bca4c",
"info": "4f505246207465737420766563746f7273",
"output": "af7cc264dbc96a6b898ba0fa33bfa9e1407bf1dcfbf8772204d470d4458b8f047806679dbfa251f656b906edf9fa638e268adf979bd0e2380a092047d61f9db9"
"blind": "5ed895206bfc53316d307b23e46ecc6623afb3086da74189a416012be037e50b",
"blinded_element": "28a5e797b710f76d20a52507145fbf320a574ec2c8ab0e33e65dd2c277d0ee56",
"evaluation_element": "345e140b707257ae83d4911f7ead3177891e7a62c54097732802c4c7a98ab25a",
"output": "4d5f4221b5ebfd4d1a9dd54830e1ed0bce5a8f30a792723a6fddfe6cfe9f86bb1d95a3725818aeb725eb0b1b52e01ee9a72f47042372ef66c307770054d674fc"
}
"#,
];
@@ -63,8 +57,6 @@ fn populate_test_vectors(values: &Value) -> VOPRFTestVectorParameters {
blind: decode(&values, "blind").unwrap(),
blinded_element: decode(&values, "blinded_element").unwrap(),
evaluation_element: decode(&values, "evaluation_element").unwrap(),
unblinded_element: decode(&values, "unblinded_element").unwrap(),
info: decode(&values, "info").unwrap(),
output: decode(&values, "output").unwrap(),
}
}
@@ -112,34 +104,7 @@ fn test_evaluate() -> Result<(), PakeError> {
Ok(())
}
// Tests sksm, evaluation_element -> evaluation_element
#[test]
fn test_unblind() -> Result<(), PakeError> {
for tv in OPRF_RISTRETTO255_SHA512 {
let parameters = populate_test_vectors(&serde_json::from_str(tv).unwrap());
let token = oprf::Token {
data: parameters.input,
blind: RistrettoPoint::from_scalar_slice(GenericArray::from_slice(
&parameters.blind[..],
))
.unwrap(),
};
let unblinded_element = oprf::unblind::<RistrettoPoint>(
&token,
RistrettoPoint::from_element_slice(GenericArray::from_slice(
&parameters.evaluation_element,
))
.unwrap(),
);
assert_eq!(&parameters.unblinded_element, &unblinded_element);
}
Ok(())
}
// Tests input, unblinded_element, info -> output
// Tests input, blind, evaluation_element -> output
#[test]
fn test_finalize() -> Result<(), PakeError> {
for tv in OPRF_RISTRETTO255_SHA512 {
@@ -147,8 +112,10 @@ fn test_finalize() -> Result<(), PakeError> {
let output = oprf::finalize::<RistrettoPoint, Sha512>(
&parameters.input,
&parameters.unblinded_element,
&parameters.info,
&RistrettoPoint::from_scalar_slice(GenericArray::from_slice(&parameters.blind))?,
RistrettoPoint::from_element_slice(GenericArray::from_slice(
&parameters.evaluation_element,
))?,
);
assert_eq!(&parameters.output, &output.to_vec());