Python keys.PrivateKey方法代碼示例

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def test_unsigned_to_eip155_signed_transaction(txn_fixture, transaction_class):
    if txn_fixture['chainId'] is None:
        pytest.skip('No chain id for EIP155 signing')
    elif not hasattr(transaction_class, 'chain_id'):
        pytest.skip('Transaction class is not chain aware')

    key = keys.PrivateKey(decode_hex(txn_fixture['key']))
    unsigned_txn = transaction_class.create_unsigned_transaction(
        nonce=txn_fixture['nonce'],
        gas_price=txn_fixture['gasPrice'],
        gas=txn_fixture['gas'],
        to=(
            to_canonical_address(txn_fixture['to'])
            if txn_fixture['to']
            else b''
        ),
        value=txn_fixture['value'],
        data=decode_hex(txn_fixture['data']),
    )
    signed_txn = unsigned_txn.as_signed_transaction(key, chain_id=txn_fixture['chainId'])

    assert is_same_address(signed_txn.sender, key.public_key.to_canonical_address())
    assert signed_txn.chain_id == txn_fixture['chainId'] 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def _manually_driven_discovery(seed, socket, nursery):
    _, port = socket.getsockname()
    discovery = ManuallyDrivenDiscoveryService(
        keys.PrivateKey(keccak(seed)),
        port,
        port,
        bootstrap_nodes=[],
        event_bus=None,
        socket=socket,
        node_db=NodeDB(default_identity_scheme_registry, MemoryDB()))
    async with background_trio_service(discovery):
        # Wait until we're fully initialized (i.e. until the ENR stub created in the constructor
        # is replaced with the real one).
        while discovery.this_node.enr.sequence_number == 0:
            await trio.hazmat.checkpoint()
        yield discovery 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def ETHV63PeerPairFactory(*,
                          alice_peer_context: ChainContext = None,
                          alice_remote: kademlia.Node = None,
                          alice_private_key: keys.PrivateKey = None,
                          alice_client_version: str = 'alice',
                          bob_peer_context: ChainContext = None,
                          bob_remote: kademlia.Node = None,
                          bob_private_key: keys.PrivateKey = None,
                          bob_client_version: str = 'bob',
                          event_bus: EndpointAPI = None,
                          peer_factory_class: Type[ETHPeerFactory] = ETHV63PeerFactory,
                          ) -> AsyncContextManager[Tuple[ETHPeer, ETHPeer]]:
    return LatestETHPeerPairFactory(
        alice_peer_context=alice_peer_context,
        alice_remote=alice_remote,
        alice_private_key=alice_private_key,
        alice_client_version=alice_client_version,
        bob_peer_context=bob_peer_context,
        bob_remote=bob_remote,
        bob_private_key=bob_private_key,
        bob_client_version=bob_client_version,
        event_bus=event_bus,
        peer_factory_class=peer_factory_class
    ) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def ETHV64PeerPairFactory(*,
                          alice_peer_context: ChainContext = None,
                          alice_remote: kademlia.Node = None,
                          alice_private_key: keys.PrivateKey = None,
                          alice_client_version: str = 'alice',
                          bob_peer_context: ChainContext = None,
                          bob_remote: kademlia.Node = None,
                          bob_private_key: keys.PrivateKey = None,
                          bob_client_version: str = 'bob',
                          event_bus: EndpointAPI = None,
                          peer_factory_class: Type[ETHPeerFactory] = ETHV64PeerFactory,
                          ) -> AsyncContextManager[Tuple[ETHPeer, ETHPeer]]:
    return LatestETHPeerPairFactory(
        alice_peer_context=alice_peer_context,
        alice_remote=alice_remote,
        alice_private_key=alice_private_key,
        alice_client_version=alice_client_version,
        bob_peer_context=bob_peer_context,
        bob_remote=bob_remote,
        bob_private_key=bob_private_key,
        bob_client_version=bob_client_version,
        event_bus=event_bus,
        peer_factory_class=peer_factory_class
    ) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def ETHV65PeerPairFactory(*,
                          alice_peer_context: ChainContext = None,
                          alice_remote: kademlia.Node = None,
                          alice_private_key: keys.PrivateKey = None,
                          alice_client_version: str = 'alice',
                          bob_peer_context: ChainContext = None,
                          bob_remote: kademlia.Node = None,
                          bob_private_key: keys.PrivateKey = None,
                          bob_client_version: str = 'bob',
                          event_bus: EndpointAPI = None,
                          peer_factory_class: Type[ETHPeerFactory] = ETHV65PeerFactory,
                          ) -> AsyncContextManager[Tuple[ETHPeer, ETHPeer]]:
    return LatestETHPeerPairFactory(
        alice_peer_context=alice_peer_context,
        alice_remote=alice_remote,
        alice_private_key=alice_private_key,
        alice_client_version=alice_client_version,
        bob_peer_context=bob_peer_context,
        bob_remote=bob_remote,
        bob_private_key=bob_private_key,
        bob_client_version=bob_client_version,
        event_bus=event_bus,
        peer_factory_class=peer_factory_class
    ) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def MemoryTransportPairFactory(alice_remote: NodeAPI = None,
                               alice_private_key: keys.PrivateKey = None,
                               bob_remote: NodeAPI = None,
                               bob_private_key: keys.PrivateKey = None,
                               ) -> Tuple[TransportAPI, TransportAPI]:
    if alice_remote is None:
        alice_remote = NodeFactory()
    if alice_private_key is None:
        alice_private_key = PrivateKeyFactory()

    if bob_remote is None:
        bob_remote = NodeFactory()
    if bob_private_key is None:
        bob_private_key = PrivateKeyFactory()

    # the remotes are intentionally switched since they represent the *other*
    # side of the connection.
    alice_transport, bob_transport = MemoryTransport.connected_pair(
        alice=(bob_remote, alice_private_key),
        bob=(alice_remote, bob_private_key),
    )
    return alice_transport, bob_transport 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def hex2prv(prv_hex: str) -> PrivateKey:
    """
    Convert ethereum hex to EllipticCurvePrivateKey

    Parameters
    ----------
    prv_hex: str
        Private key hex string

    Returns
    -------
    coincurve.PrivateKey
        A secp256k1 private key

    >>> k = generate_eth_key()
    >>> sk_hex = k.to_hex()
    >>> pk_hex = k.public_key.to_hex()
    >>> computed_prv = hex2prv(sk_hex)
    >>> computed_prv.to_int() == int(k.to_hex(), 16)
    True
    """
    return PrivateKey(decode_hex(prv_hex)) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def sign(self, key):
        '''Sign this transaction with a private key.

        A potentially already existing signature would be overridden.
        '''
        h = blake2b(digest_size=32)
        h.update(rlp.encode(self, ThorTransaction.exclude(["Signature"])))
        rawhash = h.digest()

        if key in (0, "", b"\x00" * 32, "0" * 64):
            raise Exception("Zero privkey cannot sign")

        if len(key) == 64:
            key = to_bytes(hexstr=key)  # we need a binary key
        pk = keys.PrivateKey(key)

        self.Signature = pk.sign_msg_hash(rawhash).to_bytes()


#
# estimate eth gas
# 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def generate_privkey() -> datatypes.PrivateKey:
    """Generate a new SECP256K1 private key and return it"""
    privkey = ec.generate_private_key(CURVE, default_backend())
    return keys.PrivateKey(
        pad32(int_to_big_endian(privkey.private_numbers().private_value))
    ) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def ecdh_agree(privkey: datatypes.PrivateKey, pubkey: datatypes.PublicKey) -> bytes:
    """Performs a key exchange operation using the ECDH algorithm."""
    privkey_as_int = int(cast(int, privkey))
    ec_privkey = ec.derive_private_key(privkey_as_int, CURVE, default_backend())
    pubkey_bytes = b"\x04" + pubkey.to_bytes()
    pubkey_nums = ec.EllipticCurvePublicNumbers.from_encoded_point(CURVE, pubkey_bytes)
    ec_pubkey = pubkey_nums.public_key(default_backend())
    return ec_privkey.exchange(ec.ECDH(), ec_pubkey) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def decrypt(
    data: bytes, privkey: datatypes.PrivateKey, shared_mac_data: bytes = b""
) -> bytes:
    """Decrypt data with ECIES method using the given private key

    1) generate shared-secret = kdf( ecdhAgree(myPrivKey, msg[1:65]) )
    2) verify tag
    3) decrypt

    ecdhAgree(r, recipientPublic) == ecdhAgree(recipientPrivate, R)
    [where R = r*G, and recipientPublic = recipientPrivate*G]

    """
    if data[:1] != b"\x04":
        raise DecryptionError("wrong ecies header")

    #  1) generate shared-secret = kdf( ecdhAgree(myPrivKey, msg[1:65]) )
    shared = data[1 : 1 + PUBKEY_LEN]
    key_material = ecdh_agree(privkey, keys.PublicKey(shared))
    key = kdf(key_material)
    key_enc, key_mac = key[: KEY_LEN // 2], key[KEY_LEN // 2 :]
    key_mac = sha256(key_mac).digest()
    tag = data[-KEY_LEN:]

    # 2) Verify tag
    expected_tag = hmac_sha256(
        key_mac, data[1 + PUBKEY_LEN : -KEY_LEN] + shared_mac_data
    )
    if not bytes_eq(expected_tag, tag):
        raise DecryptionError("Failed to verify tag")

    # 3) Decrypt
    algo = CIPHER(key_enc)
    blocksize = algo.block_size // 8
    iv = data[1 + PUBKEY_LEN : 1 + PUBKEY_LEN + blocksize]
    ciphertext = data[1 + PUBKEY_LEN + blocksize : -KEY_LEN]
    ctx = Cipher(algo, MODE(iv), default_backend()).decryptor()
    return ctx.update(ciphertext) + ctx.finalize() 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def get_discovery_protocol(seed=b"seed", address=None):
    privkey = keys.PrivateKey(keccak(seed))
    if address is None:
        address = random_address()
    return discovery.DiscoveryProtocol(
        privkey, address, [], 1, CancelToken("discovery-test")
    ) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def random_node():
    seed = to_bytes(text="".join(random.sample(string.ascii_lowercase, 10)))
    priv_key = keys.PrivateKey(keccak(seed))
    return kademlia.Node(priv_key.public_key, random_address()) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [as 別名]
def __init__(self, bootnodes):
        privkey = keys.PrivateKey(keccak(b"seed"))
        super().__init__(
            privkey, random_address(), bootnodes, 1, CancelToken("discovery-test")
        ) 

# 需要導入模塊: from eth_keys import keys [as 別名]
# 或者: from eth_keys.keys import PrivateKey [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