test_f_crypto.py 文件源码

def test_ecc_static_length_signature(algorithm):
    private_key = ec.generate_private_key(
        curve=algorithm.signing_algorithm_info(),
        backend=default_backend()
    )
    hasher = hashes.Hash(
        algorithm.signing_hash_type(),
        backend=default_backend()
    )
    data = b'aifuhaw9fe48haw9e8cnavwp9e8fhaw9438fnhjzsudfvhnsa89w74fhp90se8rhgfi'
    hasher.update(data)
    digest = hasher.finalize()
    signature = _ecc_static_length_signature(
        key=private_key,
        algorithm=algorithm,
        digest=digest
    )
    assert len(signature) == algorithm.signature_len
    private_key.public_key().verify(
        signature=signature,
        data=data,
        signature_algorithm=ec.ECDSA(algorithm.signing_hash_type())
    )