Function verify [src]

Verify that the signature is valid for the entire message.

Prototype

pub fn verify(self: *Verifier) VerifyError!void

Parameters

self: *Verifier

Possible Errors

IdentityElement IdentityElementError

SignatureVerificationFailed SignatureVerificationError

WeakPublicKey WeakPublicKeyError

Source

  pub fn verify(self: *Verifier) VerifyError!void {
    var hram64: [Sha512.digest_length]u8 = undefined;
    self.h.final(&hram64);
    const hram = Curve.scalar.reduce64(hram64);

    const sb_ah = try Curve.basePoint.mulDoubleBasePublic(self.s, self.a.neg(), hram);
    if (self.expected_r.sub(sb_ah).rejectLowOrder()) {
        return error.SignatureVerificationFailed;
    } else |_| {}
}  