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Adding deterministic_blind_unchecked functionality under danger feature (#30)

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This commit is contained in:
Kevin Lewi
2021-10-18 13:24:15 -07:00
committed by GitHub
parent 14830f1436
commit 093a15f597
3 changed files with 83 additions and 24 deletions
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src/group/ristretto.rs
+3 -14
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@@ -87,20 +87,9 @@ impl Group for RistrettoPoint {
fn random_nonzero_scalar<R: RngCore + CryptoRng>(rng: &mut R) -> Self::Scalar {
loop {
let scalar = {
#[cfg(not(test))]
{
let mut scalar_bytes = [0u8; 64];
rng.fill_bytes(&mut scalar_bytes);
Scalar::from_bytes_mod_order_wide(&scalar_bytes)
}
// Tests need an exact conversion from bytes to scalar, sampling only 32 bytes from rng
#[cfg(test)]
{
let mut scalar_bytes = [0u8; 32];
rng.fill_bytes(&mut scalar_bytes);
Scalar::from_bytes_mod_order(scalar_bytes)
}
let mut scalar_bytes = [0u8; 64];
rng.fill_bytes(&mut scalar_bytes);
Scalar::from_bytes_mod_order_wide(&scalar_bytes)
};
if scalar != Scalar::zero() {