double hmac

double_hmac.py

    def verify(self, secret):

        identifier = bytes(self.identifier, encoding="utf-8")
        secret = bytes(secret, encoding="utf-8")
        
        signature = hmac_sha256(secret, identifier)
        
        for caveat in self.caveats:
            signature = hmac_sha256(signature, caveat.encode("utf-8"))

        if hmac_sha256(signature, self.signature) == hmac_sha256(signature, signature):
            print("Macaron valide")
        else:
            print("Macaron invalide")