Python PrependSignature.from_bytes Examples

Example #1

def throw_wrong_type():
    private_key = ExtendedPrivateKey.from_seed(b"foo").get_private_key()

    message_hash = bytes([10] * 32)

    sig_prepend = private_key.sign_prepend_prehashed(message_hash).serialize()
    sig_secure = private_key.sign_prehashed(message_hash).serialize()

    try:
        Signature.from_bytes(sig_prepend)
    except ValueError:
        try:
            PrependSignature.from_bytes(sig_secure)
        except ValueError:
            return
        assert False
    assert False

Example #2

def no_throw_bad_sig():
    private_key = ExtendedPrivateKey.from_seed(b"foo").get_private_key()

    message_hash = bytes([9] * 32)

    sig = private_key.sign_prepend_prehashed(message_hash).serialize()
    sig = sig[:-1] + bytes([0])

    public_key = private_key.get_public_key()

    try:
        bad_signature = PrependSignature.from_bytes(sig)
    except ValueError:
        return
    assert (False)

Example #3

File: puzzle_utilities.py Project: nondejus/wallets

def signature_from_string(signature):
    try:
        sig = PrependSignature.from_bytes(bytes.fromhex(signature))
    except Exception:
        raise Exception
    return sig