Python eth_utils.decode_hex方法代碼示例

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def execute_valid_ssz_test(test_case, sedes):
    value = from_formatted_dict(test_case["value"], sedes, CustomCodec)
    serial = decode_hex(test_case["ssz"])

    try:
        decoded = ssz.decode(serial, sedes)
    except SSZException:
        raise FailedTestCase("Deserializing valid SSZ failed")
    else:
        if decoded != value:
            raise FailedTestCase(f"Deserializing SSZ returned wrong result {decoded}")

    try:
        encoded = ssz.encode(value, sedes)
    except SSZException:
        raise FailedTestCase("Serializing valid value failed")
    else:
        if encoded != serial:
            raise FailedTestCase(f"Serializing value retunred wrong result {encoded}") 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def execute_invalid_ssz_test(test_case, sedes):
    if "value" in test_case and "ssz" in test_case:
        raise ValueError("Test case for invalid inputs contains both value and ssz")

    if "value" in test_case:
        value = from_formatted_dict(test_case["value"], sedes, CustomCodec)
        try:
            ssz.encode(value, sedes)
        except SSZException:
            pass
        else:
            raise FailedTestCase("Serializing invalid value did not yield an exception")

    elif "ssz" in test_case:
        serial = decode_hex(test_case["ssz"])
        try:
            ssz.decode(serial, sedes)
        except SSZException:
            pass
        else:
            raise FailedTestCase("Deserializing invalid SSZ did not yield an exception")

    else:
        raise ValueError("Test case for invalid inputs contains neither value nor ssz") 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_mr_with_unknown_signatures(context: Context):
    """ The signatures are valid but don't belong to the participants.
    """
    context = setup_state_with_closed_channel(context)

    def assert_mr_is_ignored(mr):
        context.database.upsert_monitor_request(mr)

        event = ActionMonitoringTriggeredEvent(
            token_network_address=DEFAULT_TOKEN_NETWORK_ADDRESS,
            channel_identifier=DEFAULT_CHANNEL_IDENTIFIER,
            non_closing_participant=DEFAULT_PARTICIPANT2,
        )

        action_monitoring_triggered_event_handler(event, context)
        assert not context.monitoring_service_contract.functions.monitor.called

    assert_mr_is_ignored(
        create_signed_monitor_request(closing_privkey=PrivateKey(decode_hex(get_random_privkey())))
    )
    assert_mr_is_ignored(
        create_signed_monitor_request(
            nonclosing_privkey=PrivateKey(decode_hex(get_random_privkey()))
        )
    ) 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def churn_storage_once(chain, contract_addr, nonce):
    # invoke function shuffle the storage, with a width of 64
    # shuffle(uint256)
    func_id = decode_hex("0xef6537b5")
    # width is how many different storage slots to fill before wrapping
    width = b'\x40'
    # join call with parameters and pad:
    method_invocation = func_id + width.rjust(32, b'\0')

    tx = chain.create_unsigned_transaction(
        nonce=nonce,
        gas_price=1234,
        gas=300000,
        to=contract_addr,
        value=0,
        data=method_invocation,
    )
    _, _, computation = chain.apply_transaction(tx.as_signed_transaction(FUNDED_ACCT))
    computation.raise_if_error() 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def _delete_storage_twice(chain, contract_addr, nonce):
    # invoke function shuffle the storage, with a width of 64
    # delete_twice(uint256)
    func_id = decode_hex("0x622ff59a")
    # width is how many different storage slots might be deletable
    width = b'\x40'
    # join call with parameters and pad:
    method_invocation = func_id + width.rjust(32, b'\0')

    tx = chain.create_unsigned_transaction(
        nonce=nonce,
        gas_price=1235,
        gas=123458,
        to=contract_addr,
        value=0,
        data=method_invocation,
    )
    _, _, computation = chain.apply_transaction(tx.as_signed_transaction(FUNDED_ACCT))
    computation.raise_if_error() 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_beam_syncer_with_checkpoint(
        request,
        event_loop,
        event_bus,
        chaindb_fresh,
        chaindb_churner):

    checkpoint = Checkpoint(
        block_hash=decode_hex('0x5b8d32e4aebda3da7bdf2f0588cb42256e2ed0c268efec71b38278df8488a263'),
        score=55,
    )

    await test_beam_syncer_loads_recent_state_root(
        request,
        event_loop,
        event_bus,
        chaindb_fresh,
        chaindb_churner,
        beam_to_block=66,
        checkpoint=checkpoint,
    ) 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def _decoder(
    # NOTE: mypy incorrectly thinks `Field` is a generic type
    data: Dict[str, EncodedConfigTypes],
    fields: Collection[Field],  # type: ignore
) -> Iterable[Tuple[str, ConfigTypes]]:
    # NOTE: this code is unwieldly but it satisfies `mypy`
    for field in fields:
        if field.type is Gwei:
            yield field.name, Gwei(cast(int, data[field.name]))
        elif field.type is Slot:
            yield field.name, Slot(cast(int, data[field.name]))
        elif field.type is Epoch:
            yield field.name, Epoch(cast(int, data[field.name]))
        elif field.type is Second:
            yield field.name, Second(cast(int, data[field.name]))
        elif field.type is bytes:
            yield field.name, decode_hex(cast(str, data[field.name]))
        else:
            yield field.name, int(data[field.name]) 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def create_keypair_and_mock_withdraw_credentials(
    config: Eth2Config, key_set: Sequence[Dict[str, Any]]
) -> Tuple[Tuple[BLSPubkey, ...], Tuple[int, ...], Tuple[Hash32, ...]]:
    """
    NOTE: this function mixes the parsing of keying material with the generation of derived values.
    Prefer other functions in this module that do the derivation directly.
    """
    pubkeys: Tuple[BLSPubkey, ...] = ()
    privkeys: Tuple[int, ...] = ()
    withdrawal_credentials: Tuple[Hash32, ...] = ()
    for key_pair in key_set:
        pubkey = BLSPubkey(decode_hex(key_pair["pubkey"]))
        privkey = int.from_bytes(decode_hex(key_pair["privkey"]), "big")
        withdrawal_credential = Hash32(
            config.BLS_WITHDRAWAL_PREFIX + hash_eth2(pubkey)[1:]
        )

        pubkeys += (pubkey,)
        privkeys += (privkey,)
        withdrawal_credentials += (withdrawal_credential,)

    return (pubkeys, privkeys, withdrawal_credentials) 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def encode_int(s):
    a = "%x" % s
    return b"" if s == 0 else decode_hex("0" * (len(a) % 2) + a)[::-1] 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def from_uri(cls, uri: str) -> "Node":
        parsed = urlparse.urlparse(uri)
        pubkey = keys.PublicKey(decode_hex(parsed.username))
        return cls(pubkey, Address(parsed.hostname, parsed.port)) 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_v5_handlers(monkeypatch):
    # Ensure we dispatch v5 messages to the appropriate handlers.
    # These are hex-encoded messages sent by geth over the wire, obtained via wireshark using the
    # ethereum dissectors (https://github.com/ConsenSys/ethereum-dissectors).
    qkc_hex = "qkc1 topic discovery".encode().hex()
    v5_handlers = dict(
        recv_topic_register=qkc_hex
        + "4b1f9f999e3cf283e42270742eb3b52b1c0b63ede116ea58632517ffccc7516c794f6fc20f199b3a3a887f3e961b453bb9213eebad4581aaf9b2a60da7e5ba7b0106e2da954c455332406434653536373430663837366165663883666f6f8204d283666f6f",  # noqa: E501
        recv_pong_v5=qkc_hex
        + "6cb538da9382c022cc6d9b860b7cc7660718c731e1e6331de86a7cabfba8f01c061b5d6c09dd84de1d6c653536bb8ad31fb140d55d317dfaea5225a6907f49450102f855cb84a5a587f2827660827660a0b484b40a3712766dbbe8498f110bab968a543f9d0d57ec4cfa3b38b32ef2f237831f5ca3a0bd1ea218eaf7cddc6b068a414ae08876315f92bd134e214d5f3961d1a3e8e35b4ec13c",  # noqa: E501
        recv_ping_v5=qkc_hex
        + "c26911f1d2a320f17fa683397028e6cc7ebe114623e28e933d870634aa6050f45960679170192ec0f133dbc3f4e627eef468dbdb48bf4a7848412938da21be8a0001f84104d79000000000000000000000000000000000827660827660cb84b0201d9282848b82848b845b7e5593d6954c4553324064346535363734306638373661656638",  # noqa: E501
        recv_find_nodehash=qkc_hex
        + "58dc895847c5d2cc9ab6f722f25b9ff1b9c188af6ff7ed7c716a3cde2e93f3ec1e2b897acb1a33aa1d345c72ea34912287b21480c80ef99241d4bd9fd53711ee0105e6a038f7bb96e94bcd39866baa56038367ad6145de1ee8f4a8b0993ebdf8883a0ad8845b7e5593",  # noqa: E501
        recv_topic_query=qkc_hex
        + "308621f1ed59a67613da52da3f84bac3d927d0dc1650b27552b10a0a823fb2133cebf3680f68bf88457bb0c07787031357430985d03afa1af0574e8ef0eab7fc0007d7954c455332406434653536373430663837366165663880",  # noqa: E501
        recv_topic_nodes=qkc_hex
        + "e33166b59d20f206f0df2502be59186cb971c76ee91dba94ea9b1bbeb1308a5f4efbdf945ead9ba89d7c2c55d5d841dacdef69a455c98e1a5415e489508afa450008f87ea0cff0456ecbf2e6b0a40bc6541bd209c60ced192509470b405c256a17443674b3f85bf8599000000000000000000000ffff904c1f9c82765f82765fb840e7d624c642b86d3d48cea3e395305345c3a0226fc4c2dfdfbeb94cb6891e5e72b4467c69684ac14b072d2e4fa9c7a731cc1fdf0283abe41186d00b4c879f80ed",  # noqa: E501
        recv_neighbours_v5=qkc_hex
        + "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",  # noqa: E501
    )

    proto = get_discovery_protocol()
    addr = random_address()
    for handler, msg in v5_handlers.items():
        mock_handler = MockHandler()
        monkeypatch.setattr(proto, handler, mock_handler)
        proto.datagram_received(decode_hex(msg), (addr.ip, addr.udp_port))
        assert mock_handler.called 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_decrypt_known_good_handshake():
    # Data taken from https://gist.github.com/fjl/3a78780d17c755d22df2
    privkey = keys.PrivateKey(
        decode_hex("c45f950382d542169ea207959ee0220ec1491755abe405cd7498d6b16adb6df8")
    )
    auth_ciphertext = decode_hex(
        "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"
    )  # noqa: E501
    auth_plaintext = decode_hex(
        "884c36f7ae6b406637c1f61b2f57e1d2cab813d24c6559aaf843c3f48962f32f46662c066d39669b7b2e3ba14781477417600e7728399278b1b5d801a519aa570034fdb5419558137e0d44cd13d319afe5629eeccb47fd9dfe55cc6089426e46cc762dd8a0636e07a54b31169eba0c7a20a1ac1ef68596f1f283b5c676bae4064abfcce24799d09f67e392632d3ffdc12e3d6430dcb0ea19c318343ffa7aae74d4cd26fecb93657d1cd9e9eaf4f8be720b56dd1d39f190c4e1c6b7ec66f077bb1100"
    )  # noqa: E501
    decrypted = ecies.decrypt(auth_ciphertext, privkey)
    assert auth_plaintext == decrypted 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_ecdh(privkey_hex, pubkey_hex, ecdh_expected):
    privkey = keys.PrivateKey(decode_hex(privkey_hex))
    pubkey = keys.PublicKey(decode_hex(pubkey_hex))
    assert ecdh_expected == encode_hex(ecies.ecdh_agree(privkey, pubkey))


# FIXME: Document those values; this test was lifted from pydevp2p:
# https://github.com/ethereum/pydevp2p/blob/e1ef07a782b9369d18a8441c3b9bcf12456e0608/devp2p/tests/test_ecies.py#L31 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_kdf():
    input_ = decode_hex(
        "0x961c065873443014e0371f1ed656c586c6730bf927415757f389d92acf8268df"
    )
    expected_key = decode_hex(
        "0x4050c52e6d9c08755e5a818ac66fabe478b825b1836fd5efc4d44e40d04dabcc"
    )
    key = ecies.kdf(input_)
    assert key == expected_key 

# 需要導入模塊: import eth_utils [as 別名]
# 或者: from eth_utils import decode_hex [as 別名]
def test_eip8_hello():
    # Data taken from https://github.com/ethereum/EIPs/blob/master/EIPS/eip-8.md
    payload = decode_hex(
        "f87137916b6e6574682f76302e39312f706c616e39cdc5836574683dc6846d6f726b1682270fb840"
        "fda1cff674c90c9a197539fe3dfb53086ace64f83ed7c6eabec741f7f381cc803e52ab2cd55d5569"
        "bce4347107a310dfd5f88a010cd2ffd1005ca406f1842877c883666f6f836261720304"
    )
    Hello(cmd_id_offset=0).decode_payload(payload)