// VerifySTHSignature verifies that the STH's signature is valid.
func (s SignatureVerifier) VerifySTHSignature(sth SignedTreeHead) error {
sthData, err := SerializeSTHSignatureInput(sth)
if err != nil {
return err
}
return s.VerifySignature(sthData, tls.DigitallySigned(sth.TreeHeadSignature))
}
// VerifySCTSignature verifies that the SCT's signature is valid for the given LogEntry.
func (s SignatureVerifier) VerifySCTSignature(sct SignedCertificateTimestamp, entry LogEntry) error {
sctData, err := SerializeSCTSignatureInput(sct, entry)
if err != nil {
return err
}
return s.VerifySignature(sctData, tls.DigitallySigned(sct.Signature))
}