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Expand tests for ethereum-schnorr-contract

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This commit is contained in:
Luke Parker
2024-10-28 18:08:31 -04:00
parent 0b61a75afc
commit ce1689b325
9 changed files with 205 additions and 51 deletions
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10
networks/ethereum/schnorr/src/signature.rs
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@@ -20,11 +20,17 @@ pub struct Signature {
impl Signature {
/// Construct a new `Signature`.
#[must_use]
pub fn new(c: Scalar, s: Scalar) -> Signature {
Signature { c, s }
pub fn new(c: Scalar, s: Scalar) -> Option<Signature> {
if bool::from(c.is_zero()) {
None?;
}
Some(Signature { c, s })
}
/// The challenge for a signature.
///
/// With negligible probability, this MAY return 0 which will create an invalid/unverifiable
/// signature.
#[must_use]
pub fn challenge(R: ProjectivePoint, key: &PublicKey, message: &[u8]) -> Scalar {
// H(R || A || m)