Ejemplo n.º 1
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def test_output_scripts_serialization() -> None:
    input_1 = TxIn(
        OutPoint(
            "75ddabb27b8845f5247975c8a5ba7c6f336c4570708ebe230caf6db5217ae858",
            0),
        b"",
        0xFFFFFFFF,
    )
    output_1 = TxOut(
        149990000,
        bytes.fromhex("a914256b3a9ae8145e5094329537dd4d7a25dbc9452087"))
    output_2 = TxOut(
        100000000,
        bytes.fromhex("001400aea9a2e5f0f876a588df5546e8742d1d87008f"))
    tx = Tx(2, 0, [input_1], [output_1, output_2])

    psbt = Psbt.from_tx(tx)

    # p2sh-p2wsh
    psbt.outputs[0].redeem_script = bytes.fromhex(
        "003BD89EE628E6EB745F99DF1E4AEF64A0DAA814850DAA509F30C0F472E0563C7A")
    psbt.outputs[0].witness_script = bytes.fromhex(
        "522103dcea327ff7b2b4449413d9dc24cef0cc9e7864bad9d6291f3f1a04b639422c312103a2c5199b333adfaed4fea7ab65485b9e23a6cb317ddae7e8c1f2bd673414bdd352ae"
    )

    assert Psbt.b64decode(psbt.b64encode()) == psbt
Ejemplo n.º 2
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def test_native_p2wsh_2() -> None:
    tx_bytes = "0100000002e9b542c5176808107ff1df906f46bb1f2583b16112b95ee5380665ba7fcfc0010000000000ffffffff80e68831516392fcd100d186b3c2c7b95c80b53c77e77c35ba03a66b429a2a1b0000000000ffffffff0280969800000000001976a914de4b231626ef508c9a74a8517e6783c0546d6b2888ac80969800000000001976a9146648a8cd4531e1ec47f35916de8e259237294d1e88ac00000000"
    tx = Tx.parse(tx_bytes)
    tx.vin[0].script_witness = Witness([
        "0063ab68210392972e2eb617b2388771abe27235fd5ac44af8e61693261550447a4c3e39da98ac"
    ])
    tx.vin[1].script_witness = Witness([
        "5163ab68210392972e2eb617b2388771abe27235fd5ac44af8e61693261550447a4c3e39da98ac"
    ])

    previous_txout_1 = TxOut(
        16777215,
        "0020ba468eea561b26301e4cf69fa34bde4ad60c81e70f059f045ca9a79931004a4d")
    previous_txout_2 = TxOut(
        16777215,
        "0020d9bbfbe56af7c4b7f960a70d7ea107156913d9e5a26b0a71429df5e097ca6537")
    hash_ = sig_hash.from_tx(
        [previous_txout_1, previous_txout_2],
        tx,
        0,
        sig_hash.ANYONECANPAY | sig_hash.SINGLE,
    )
    assert hash_ == bytes.fromhex(
        "e9071e75e25b8a1e298a72f0d2e9f4f95a0f5cdf86a533cda597eb402ed13b3a")

    script_ = sig_hash.witness_v0_script(tx.vin[1].script_witness.stack[-1])[1]
    hash_ = sig_hash.segwit_v0(
        script_,
        tx,
        1,
        sig_hash.ANYONECANPAY | sig_hash.SINGLE,
        previous_txout_2.value,
    )
    assert hash_ == bytes.fromhex(
        "cd72f1f1a433ee9df816857fad88d8ebd97e09a75cd481583eb841c330275e54")
Ejemplo n.º 3
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def test_legacy_p2pkh() -> None:
    pub_key = "04280c8f66bf2ccaeb3f60a19ad4a06365f8bd6178aab0e709df2173df8f553366549aec336aae8742a84702b6c7c3052d89f5d76d535ec3716e72187956351613"
    signature = "3045022100ea43c4800d1a860ec89b5273898a146cfb01d34ff4c364d24a110c480d0e3f7502201c82735577f932f1ca8e1c54bf653e0f8e74e408fe83666bc85cac4472ec950801"
    script_sig = serialize([signature, pub_key])
    out_point = OutPoint(
        "d8343a35ba951684f2969eafe833d9e6fe436557b9707ae76802875952e860fc", 1)
    tx_in = TxIn(out_point, script_sig, 0xFFFFFFFF)
    tx_out1 = TxOut(
        2017682,
        bytes.fromhex("76a91413bd20236d0da56492c325dce289b4da35b4b5bd88ac"))
    tx_out2 = TxOut(
        1049154982,
        bytes.fromhex("76a914da169b45781ca210f8c11617ba66bd843da76b1688ac"))
    tx = Tx(1, 0, [tx_in], [tx_out1, tx_out2])

    script_pub_key = serialize([
        "OP_DUP",
        "OP_HASH160",
        "82ac30f58baf99ec9d14e6181eee076f4e27f69c",
        "OP_EQUALVERIFY",
        "OP_CHECKSIG",
    ])
    utxo = TxOut(1051173696, script_pub_key)
    hash_ = sig_hash.from_tx([utxo], tx, 0, sig_hash.ALL)
    assert dsa.verify_(hash_, pub_key, bytes.fromhex(signature)[:-1])
Ejemplo n.º 4
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def test_tx_out_from_address() -> None:
    address = "bc1qwqdg6squsna38e46795at95yu9atm8azzmyvckulcc7kytlcckxswvvzej"
    assert TxOut.from_address(0, address).script_pub_key.addresses == [address]
    assert TxOut.from_address(0, address).script_pub_key.network == "mainnet"
    address = "tb1qrp33g0q5c5txsp9arysrx4k6zdkfs4nce4xj0gdcccefvpysxf3q0sl5k7"
    assert TxOut.from_address(0, address).script_pub_key.addresses == [address]
    assert TxOut.from_address(0, address).script_pub_key.network == "testnet"
Ejemplo n.º 5
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def test_creation() -> None:
    psbt_str = "cHNidP8BAJoCAAAAAljoeiG1ba8MI76OcHBFbDNvfLqlyHV5JPVFiHuyq911AAAAAAD/////g40EJ9DsZQpoqka7CwmK6kQiwHGyyng1Kgd5WdB86h0BAAAAAP////8CcKrwCAAAAAAWABTYXCtx0AYLCcmIauuBXlCZHdoSTQDh9QUAAAAAFgAUAK6pouXw+HaliN9VRuh0LR2HAI8AAAAAAAAAAAA="
    psbt = Psbt.b64decode(psbt_str)
    assert psbt.b64encode() == psbt_str

    output_1 = TxOut(
        149990000,
        ScriptPubKey("0014d85c2b71d0060b09c9886aeb815e50991dda124d"))
    output_2 = TxOut(
        100000000,
        ScriptPubKey("001400aea9a2e5f0f876a588df5546e8742d1d87008f"))
    input_1 = TxIn(
        OutPoint(
            "75ddabb27b8845f5247975c8a5ba7c6f336c4570708ebe230caf6db5217ae858",
            0),
        b"",
        0xFFFFFFFF,
    )
    input_2 = TxIn(
        OutPoint(
            "1dea7cd05979072a3578cab271c02244ea8a090bbb46aa680a65ecd027048d83",
            1),
        b"",
        0xFFFFFFFF,
    )
    transaction = Tx(2, 0, [input_1, input_2], [output_1, output_2])
    psbt_from_tx_ = Psbt.from_tx(transaction)
    assert psbt_from_tx_ == psbt
Ejemplo n.º 6
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def test_native_p2wpkh() -> None:
    tx_bytes = "0100000002fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad969f0000000000eeffffffef51e1b804cc89d182d279655c3aa89e815b1b309fe287d9b2b55d57b90ec68a0100000000ffffffff02202cb206000000001976a9148280b37df378db99f66f85c95a783a76ac7a6d5988ac9093510d000000001976a9143bde42dbee7e4dbe6a21b2d50ce2f0167faa815988ac11000000"
    tx = Tx.parse(tx_bytes)

    utxo_0 = TxOut(
        625000000,
        "2103c9f4836b9a4f77fc0d81f7bcb01b7f1b35916864b9476c241ce9fc198bd25432ac",
    )
    utxo_1 = TxOut(600000000, "00141d0f172a0ecb48aee1be1f2687d2963ae33f71a1")

    hash_ = sig_hash.from_tx([utxo_0, utxo_1], tx, 1, sig_hash.ALL)
    assert hash_ == bytes.fromhex(
        "c37af31116d1b27caf68aae9e3ac82f1477929014d5b917657d0eb49478cb670")
Ejemplo n.º 7
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def test_p2pk() -> None:
    pub_key = "0479BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8"
    signature = "304402200A5C6163F07B8D3B013C4D1D6DBA25E780B39658D79BA37AF7057A3B7F15FFA102201FD9B4EAA9943F734928B99A83592C2E7BF342EA2680F6A2BB705167966B742001"
    script_pub_key = serialize([pub_key, "OP_CHECKSIG"])
    script_sig = serialize([signature])

    founding_tx_script = serialize(["OP_0", "OP_0"])
    tx_in = TxIn(OutPoint(b"\x00" * 32, 0xFFFFFFFF), founding_tx_script, 0xFFFFFFFF)
    funding_tx = Tx(1, 0, [tx_in], [TxOut(0, script_pub_key)])

    tx_in = TxIn(OutPoint(funding_tx.id, 0), script_sig, 0xFFFFFFFF)
    receiving_tx = Tx(1, 0, [tx_in], [TxOut(0, b"")])
    hash_ = sig_hash.from_tx(funding_tx.vout, receiving_tx, 0, sig_hash.ALL)
    assert dsa.verify_(hash_, pub_key, bytes.fromhex(signature)[:-1])
Ejemplo n.º 8
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def test_empty_stack() -> None:

    utxo = TxOut(
        100000000,
        serialize([
            "OP_1",
            "cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaf"
        ]),
    )
    tx_in = TxIn(OutPoint(), "", 1, Witness([]))
    tx = Tx(vin=[tx_in], vout=[TxOut(100000000, "")])

    err_msg = "Empty stack"
    with pytest.raises(BTClibValueError, match=err_msg):
        sig_hash.from_tx([utxo], tx, 0, 0)
Ejemplo n.º 9
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def test_p2pk_anyonecanpay() -> None:
    pub_key = "048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf"
    signature = "304402204710a85181663b32d25c70ec2bbd14adff5ddfff6cb50d09e155ef5f541fc86c0220056b0cc949be9386ecc5f6c2ac0493269031dbb185781db90171b54ac127790281"
    script_pub_key = serialize([pub_key, "OP_CHECKSIG"])
    script_sig = serialize([signature])

    founding_tx_script = serialize(["OP_0", "OP_0"])
    tx_in = TxIn(OutPoint(b"\x00" * 32, 0xFFFFFFFF), founding_tx_script,
                 0xFFFFFFFF)
    funding_tx = Tx(1, 0, [tx_in], [TxOut(0, script_pub_key)])

    tx_in = TxIn(OutPoint(funding_tx.id, 0), script_sig, 0xFFFFFFFF)
    receiving_tx = Tx(1, 0, [tx_in], [TxOut(0, b"")])
    hash_ = sig_hash.from_tx(funding_tx.vout, receiving_tx, 0,
                             sig_hash.ANYONECANPAY | sig_hash.ALL)
    assert dsa.verify_(hash_, pub_key, bytes.fromhex(signature)[:-1])
Ejemplo n.º 10
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def _deserialize_witness_utxo(k: bytes, v: bytes) -> TxOut:
    "Return the dataclass element from its binary representation."

    if len(k) != 1:
        err_msg = f"invalid witness-utxo key length: {len(k)}"
        raise BTClibValueError(err_msg)
    return TxOut.parse(v)
Ejemplo n.º 11
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def test_dataclasses_json_dict() -> None:
    fname = "d4f3c2c3c218be868c77ae31bedb497e2f908d6ee5bbbe91e4933e6da680c970.bin"
    filename = path.join(path.dirname(__file__), "_data", fname)
    with open(filename, "rb") as binary_file_:
        temp = Tx.parse(binary_file_.read())

    tx_out_data = temp.vout[0]

    # dataclass
    assert isinstance(tx_out_data, TxOut)

    # Tx to/from dict
    tx_out_dict = tx_out_data.to_dict()
    assert isinstance(tx_out_dict, dict)
    assert tx_out_data == TxOut.from_dict(tx_out_dict)

    datadir = path.join(path.dirname(__file__), "_generated_files")

    # Tx dict to/from dict file
    filename = path.join(datadir, "tx_out.json")
    with open(filename, "w", encoding="ascii") as file_:
        json.dump(tx_out_dict, file_, indent=4)
    with open(filename, "r", encoding="ascii") as file_:
        tx_dict2 = json.load(file_)
    assert isinstance(tx_dict2, dict)
    assert tx_out_dict == tx_dict2
Ejemplo n.º 12
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def test_wrapped_p2tr() -> None:

    script = [
        "OP_1",
        "cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaf",
    ]
    utxo = TxOut(
        100000000,
        serialize(["OP_HASH160",
                   hash160(serialize(script)), "OP_EQUAL"]))
    tx_in = TxIn(OutPoint(), serialize(script), 1, Witness(["0A" * 32]))
    tx = Tx(vin=[tx_in], vout=[TxOut(100000000, "")])

    err_msg = "Taproot scripts cannot be wrapped in p2sh"
    with pytest.raises(BTClibValueError, match=err_msg):
        sig_hash.from_tx([utxo], tx, 0, 0)
Ejemplo n.º 13
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def test_valid_taproot_script_path() -> None:
    tx_data = "26dc279d02d8b1a203b653fc4e0f27f408432f3f540136d33f8f930eaeba655910095142980402000000fd697cd4eb5278f1e34545cd57b6670df806fa3a0a064fd8e385a19f1a53d9ce8d8971a30f02000000378d5fb502335dbe02000000001976a9140053a23441c8478caac4c6b769c51f8476cd4b4b88ac58020000000000001976a914f2aae94a43e0d173354201d7832b46c5269c8a2488ac4a08671e"
    prevouts_data = [
        "91ca4c010000000017a9145658b58602cdf7b7e962cfe44e024cb0e366f27087",
        "cb127401000000002251201ebe8b90363bd097aa9f352c8b21914e1886bc09fe9e70c09f33ef2d2abdf4bc",
    ]
    witness_data = [
        "9675a9982c6398ea9d441cb7a943bcd6ff033cc3a2e01a0178a7d3be4575be863871c6bf3eef5ecd34721c784259385ca9101c3a313e010ac942c99de05aaaa602",
        "5799cf4b193b730fb99580b186f7477c2cca4d28957326f6f1a5d14116438530e7ec0ce1cd465ad96968ae8a6a09d4d37a060a115919f56fcfebe7b2277cc2df5cc08fb6cda9105ee2512b2e22635aba",
        "7520c7b5db9562078049719228db2ac80cb9643ec96c8055aa3b29c2c03d4d99edb0ac",
        "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",
    ]

    tx = Tx.parse(tx_data)
    prevouts = [TxOut.parse(prevout) for prevout in prevouts_data]
    index = 1
    witness = Witness(witness_data)
    tx.vin[index].script_witness = witness

    sighash_type = 0  # all
    signature = witness.stack[0][:64]
    if len(witness.stack[0]) == 65:
        sighash_type = witness.stack[0][-1]
        assert sighash_type != 0

    msg_hash = sig_hash.from_tx(prevouts, tx, index, sighash_type)

    tapscript = parse(witness.stack[-2])
    pub_key = bytes.fromhex(str(tapscript[1]))

    ssa.assert_as_valid_(msg_hash, pub_key, signature)
Ejemplo n.º 14
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def test_wrapped_p2wsh() -> None:
    tx_bytes = "010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000"
    tx = Tx.parse(tx_bytes)
    stack = [
        "56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae"
    ]
    tx.vin[0].script_witness = Witness(stack)

    utxo = TxOut(
        987654321,
        "0020a16b5755f7f6f96dbd65f5f0d6ab9418b89af4b1f14a1bb8a09062c35f0dcb54",
    )

    hash_ = sig_hash.from_tx([utxo], tx, 0, sig_hash.ALL)
    assert hash_ == bytes.fromhex(
        "185c0be5263dce5b4bb50a047973c1b6272bfbd0103a89444597dc40b248ee7c")
    hash_ = sig_hash.from_tx([utxo], tx, 0, sig_hash.NONE)
    assert hash_ == bytes.fromhex(
        "e9733bc60ea13c95c6527066bb975a2ff29a925e80aa14c213f686cbae5d2f36")
    hash_ = sig_hash.from_tx([utxo], tx, 0, sig_hash.SINGLE)
    assert hash_ == bytes.fromhex(
        "1e1f1c303dc025bd664acb72e583e933fae4cff9148bf78c157d1e8f78530aea")
    hash_ = sig_hash.from_tx([utxo], tx, 0,
                             sig_hash.ANYONECANPAY | sig_hash.ALL)
    assert hash_ == bytes.fromhex(
        "2a67f03e63a6a422125878b40b82da593be8d4efaafe88ee528af6e5a9955c6e")
    hash_ = sig_hash.from_tx([utxo], tx, 0,
                             sig_hash.ANYONECANPAY | sig_hash.NONE)
    assert hash_ == bytes.fromhex(
        "781ba15f3779d5542ce8ecb5c18716733a5ee42a6f51488ec96154934e2c890a")
    hash_ = sig_hash.from_tx([utxo], tx, 0,
                             sig_hash.ANYONECANPAY | sig_hash.SINGLE)
    assert hash_ == bytes.fromhex(
        "511e8e52ed574121fc1b654970395502128263f62662e076dc6baf05c2e6a99b")
Ejemplo n.º 15
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    def parse(cls: Type[_Tx],
              data: BinaryData,
              check_validity: bool = True) -> _Tx:
        "Return a Tx by parsing binary data."

        stream = bytesio_from_binarydata(data)

        # version is a signed int (int32_t, not uint32_t)
        version = int.from_bytes(stream.read(4),
                                 byteorder="little",
                                 signed=True)

        segwit = stream.read(2) == _SEGWIT_MARKER
        if not segwit:
            # Change stream position: seek to byte offset relative to position
            stream.seek(-2, SEEK_CUR)  # current position

        n = var_int.parse(stream)
        vin = [TxIn.parse(stream) for _ in range(n)]

        n = var_int.parse(stream)
        vout = [TxOut.parse(stream) for _ in range(n)]

        if segwit:
            for tx_in in vin:
                tx_in.script_witness = Witness.parse(stream, check_validity)

        lock_time = int.from_bytes(stream.read(4),
                                   byteorder="little",
                                   signed=False)

        return cls(version, lock_time, vin, vout, check_validity)
Ejemplo n.º 16
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def test_valid_script_path() -> None:
    fname = "tapscript_test_vector.json"
    filename = path.join(path.dirname(__file__), "_data", fname)
    with open(filename, "r", encoding="ascii") as file_:
        data = json.load(file_)

    for x in data:

        prevouts = [TxOut.parse(prevout) for prevout in x["prevouts"]]
        index = x["index"]

        if not is_p2tr(prevouts[index].script_pub_key.script):
            continue

        script_sig = x["success"]["scriptSig"]
        assert not script_sig

        witness = Witness(x["success"]["witness"])
        if len(witness.stack) >= 2 and witness.stack[-1][0] == 0x50:
            witness.stack = witness.stack[:-1]

        # check script paths
        if len(witness.stack) < 2:
            continue

        Q = type_and_payload(prevouts[index].script_pub_key.script)[1]

        script = witness.stack[-2]
        control = witness.stack[-1]

        assert check_output_pubkey(Q, script, control)
Ejemplo n.º 17
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def test_psbt() -> None:
    prev_out = OutPoint(
        "9dcfdb5836ecfe146bdaa896605ba21222f83cd014dd47adde14fab2aba7de9b", 1)
    script_sig = b""
    sequence = 0xFFFFFFFF
    tx_in = TxIn(prev_out, script_sig, sequence)

    tx_out1 = TxOut(2500000, "a914f987c321394968be164053d352fc49763b2be55c87")
    tx_out2 = TxOut(
        6381891,
        "0020701a8d401c84fb13e6baf169d59684e17abd9fa216c8cc5b9fc63d622ff8c58d")
    version = 1
    lock_time = 0
    tx = Tx(version, lock_time, [tx_in], [tx_out1, tx_out2])
    psbt = Psbt.from_tx(tx)
    assert psbt == Psbt.parse(psbt.serialize())
    assert psbt == Psbt.from_dict(psbt.to_dict())
Ejemplo n.º 18
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def test_sig_hashsingle_bug() -> None:
    pub_key = "02D5C25ADB51B61339D2B05315791E21BBE80EA470A49DB0135720983C905AACE0"
    signature = "3045022100C9CDD08798A28AF9D1BAF44A6C77BCC7E279F47DC487C8C899911BC48FEAFFCC0220503C5C50AE3998A733263C5C0F7061B483E2B56C4C41B456E7D2F5A78A74C07703"
    script_pub_key = serialize([
        "OP_DUP",
        "OP_HASH160",
        "5b6462475454710f3c22f5fdf0b40704c92f25c3",
        "OP_EQUALVERIFY",
        "OP_CHECKSIGVERIFY",
        "OP_1",
    ])

    utxo = TxOut(0, script_pub_key)
    tx_bytes = "01000000020002000000000000000000000000000000000000000000000000000000000000000000000151ffffffff0001000000000000000000000000000000000000000000000000000000000000000000006b483045022100c9cdd08798a28af9d1baf44a6c77bcc7e279f47dc487c8c899911bc48feaffcc0220503c5c50ae3998a733263c5c0f7061b483e2b56c4c41b456e7d2f5a78a74c077032102d5c25adb51b61339d2b05315791e21bbe80ea470a49db0135720983c905aace0ffffffff010000000000000000015100000000"
    tx = Tx.parse(tx_bytes)
    hash_ = sig_hash.from_tx([TxOut(0, ""), utxo], tx, 1, sig_hash.SINGLE)
    assert dsa.verify_(hash_, pub_key, bytes.fromhex(signature)[:-1])
Ejemplo n.º 19
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    def from_dict(cls: Type["Tx"],
                  dict_: Mapping[str, Any],
                  check_validity: bool = True) -> "Tx":

        return cls(
            dict_["version"],
            dict_["locktime"],
            [TxIn.from_dict(tx_in, False) for tx_in in dict_["vin"]],
            [TxOut.from_dict(tx_out, False) for tx_out in dict_["vout"]],
            check_validity,
        )
Ejemplo n.º 20
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def test_wrapped_p2wpkh() -> None:
    tx_bytes = "0100000001db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a54770100000000feffffff02b8b4eb0b000000001976a914a457b684d7f0d539a46a45bbc043f35b59d0d96388ac0008af2f000000001976a914fd270b1ee6abcaea97fea7ad0402e8bd8ad6d77c88ac92040000"
    tx = Tx.parse(tx_bytes)
    tx.vin[0].script_sig = bytes.fromhex(
        "001479091972186c449eb1ded22b78e40d009bdf0089")

    utxo = TxOut(1000000000, "a9144733f37cf4db86fbc2efed2500b4f4e49f31202387")

    hash_ = sig_hash.from_tx([utxo], tx, 0, sig_hash.ALL)
    assert hash_ == bytes.fromhex(
        "64f3b0f4dd2bb3aa1ce8566d220cc74dda9df97d8490cc81d89d735c92e59fb6")
Ejemplo n.º 21
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def test_p2pkh() -> None:
    pub_key = "038282263212C609D9EA2A6E3E172DE238D8C39CABD5AC1CA10646E23FD5F51508"
    signature = "304402206E05A6FE23C59196FFE176C9DDC31E73A9885638F9D1328D47C0C703863B8876022076FEB53811AA5B04E0E79F938EB19906CC5E67548BC555A8E8B8B0FC603D840C01"
    script_pub_key = serialize([
        "OP_DUP",
        "OP_HASH160",
        "1018853670F9F3B0582C5B9EE8CE93764AC32B93",
        "OP_EQUALVERIFY",
        "OP_CHECKSIG",
    ])
    script_sig = serialize([signature, pub_key])

    founding_tx_script = serialize(["OP_0", "OP_0"])
    tx_in = TxIn(OutPoint(b"\x00" * 32, 0xFFFFFFFF), founding_tx_script,
                 0xFFFFFFFF)
    funding_tx = Tx(1, 0, [tx_in], [TxOut(0, script_pub_key)])

    tx_in = TxIn(OutPoint(funding_tx.id, 0), script_sig, 0xFFFFFFFF)
    receiving_tx = Tx(1, 0, [tx_in], [TxOut(0, b"")])
    hash_ = sig_hash.from_tx(funding_tx.vout, receiving_tx, 0, sig_hash.ALL)
    assert dsa.verify_(hash_, pub_key, bytes.fromhex(signature)[:-1])
Ejemplo n.º 22
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def test_native_p2wsh() -> None:
    tx_bytes = "0100000002fe3dc9208094f3ffd12645477b3dc56f60ec4fa8e6f5d67c565d1c6b9216b36e0000000000ffffffff0815cf020f013ed6cf91d29f4202e8a58726b1ac6c79da47c23d1bee0a6925f80000000000ffffffff0100f2052a010000001976a914a30741f8145e5acadf23f751864167f32e0963f788ac00000000"
    tx = Tx.parse(tx_bytes)
    tx.vin[1].script_witness = Witness([
        "21026dccc749adc2a9d0d89497ac511f760f45c47dc5ed9cf352a58ac706453880aeadab210255a9626aebf5e29c0e6538428ba0d1dcf6ca98ffdf086aa8ced5e0d0215ea465ac"
    ])

    utxo_0 = TxOut(
        156250000,
        "21036d5c20fa14fb2f635474c1dc4ef5909d4568e5569b79fc94d3448486e14685f8ac",
    )
    utxo_1 = TxOut(
        4900000000,
        "00205d1b56b63d714eebe542309525f484b7e9d6f686b3781b6f61ef925d66d6f6a0",
    )

    hash_ = sig_hash.from_tx([utxo_0, utxo_1], tx, 1, sig_hash.SINGLE)
    assert hash_ == bytes.fromhex(
        "82dde6e4f1e94d02c2b7ad03d2115d691f48d064e9d52f58194a6637e4194391")

    script_ = sig_hash.witness_v0_script(tx.vin[1].script_witness.stack[-1])[1]
    hash_ = sig_hash.segwit_v0(script_, tx, 1, sig_hash.SINGLE, utxo_1.value)
    assert hash_ == bytes.fromhex(
        "fef7bd749cce710c5c052bd796df1af0d935e59cea63736268bcbe2d2134fc47")
Ejemplo n.º 23
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def test_first_transaction() -> None:
    tx_bytes = "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"
    tx = Tx.parse(tx_bytes)
    utxo = TxOut(
        value=5000000000,
        script_pub_key=bytes.fromhex(
            "410411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3ac"
        ),
    )
    hash_ = sig_hash.from_tx([utxo], tx, 0, sig_hash.ALL)
    assert hash_ == bytes.fromhex(
        "7a05c6145f10101e9d6325494245adf1297d80f8f38d4d576d57cdba220bcb19")
    pub_key = "0411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3"
    signature = "304402204E45E16932B8AF514961A1D3A1A25FDF3F4F7732E9D624C6C61548AB5FB8CD410220181522EC8ECA07DE4860A4ACDD12909D831CC56CBBAC4622082221A8768D1D0901"
    assert dsa.verify_(hash_, pub_key, bytes.fromhex(signature)[:-1])
Ejemplo n.º 24
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    def from_dict(cls: Type[_PsbtIn],
                  dict_: Mapping[str, Any],
                  check_validity: bool = True) -> _PsbtIn:

        return cls(
            Tx.from_dict(dict_["non_witness_utxo"], False)
            if dict_["non_witness_utxo"] else None,
            TxOut.from_dict(dict_["witness_utxo"], False)
            if dict_["witness_utxo"] else None,
            dict_["partial_signatures"],
            dict_["sign_hash"],
            dict_["redeem_script"],
            dict_["witness_script"],
            # FIXME
            decode_from_bip32_derivs(dict_["bip32_derivs"]),  # type: ignore
            dict_["final_script_sig"],
            Witness.from_dict(dict_["final_script_witness"], False),
            dict_["unknown"],
            check_validity,
        )
Ejemplo n.º 25
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def test_invalid_taproot_key_path() -> None:
    fname = "tapscript_test_vector.json"
    filename = path.join(path.dirname(__file__), "_data", fname)
    with open(filename, "r", encoding="ascii") as file_:
        data = json.load(file_)

    for x in filter(lambda x: "failure" in x.keys(), data):

        tx = Tx.parse(x["tx"])
        prevouts = [TxOut.parse(prevout) for prevout in x["prevouts"]]
        index = x["index"]

        if not is_p2tr(prevouts[index].script_pub_key.script):
            continue

        witness = Witness(x["failure"]["witness"])
        tx.vin[index].script_witness = witness

        # check only key paths
        if (len(witness.stack) == 1
                or len(witness.stack) == 2 and witness.stack[-1][0] == 0x50):

            with pytest.raises(
                (BTClibRuntimeError, BTClibValueError, AssertionError)):

                assert not x["failure"]["scriptSig"]

                sighash_type = 0  # all
                signature = witness.stack[0][:64]
                if len(witness.stack[0]) == 65:
                    sighash_type = witness.stack[0][-1]
                    if sighash_type == 0:
                        raise BTClibValueError(
                            "invalid sighash 0 in 65 bytes signature")

                msg_hash = sig_hash.from_tx(prevouts, tx, index, sighash_type)

                pub_key = type_and_payload(
                    prevouts[index].script_pub_key.script)[1]

                ssa.assert_as_valid_(msg_hash, pub_key, signature)
Ejemplo n.º 26
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def test_bip_test_vector():

    fname = "taproot_test_vector.json"
    filename = path.join(path.dirname(__file__), "_data", fname)
    with open(filename, "r", encoding="ascii") as file_:
        data = json.load(file_)["keyPathSpending"][0]

    unsigned_tx = Tx.parse(data["given"]["rawUnsignedTx"])

    utxos = []
    for utxo in data["given"]["utxosSpent"]:
        utxos.append(TxOut(utxo["amountSats"], utxo["scriptPubKey"]))

    for vin in unsigned_tx.vin:
        vin.script_witness.stack.append(["00"])

    for test in data["inputSpending"]:
        index = test["given"]["txinIndex"]
        hash_type = test["given"]["hashType"]
        signature_hash = sig_hash.from_tx(utxos, unsigned_tx, index, hash_type)
        assert signature_hash.hex() == test["intermediary"]["sigHash"]
Ejemplo n.º 27
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def test_coinbase_block_1() -> None:

    coinbase_out = "00f2052a0100000043410496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858eeac"
    tx_out = TxOut.parse(coinbase_out)
    assert tx_out.serialize().hex() == coinbase_out

    coinbase_inp = (  # prev_out
        "0000000000000000000000000000000000000000000000000000000000000000ffffffff"
        "0704ffff001d0104"  # script_sig
        "ffffffff"  # sequence
    )
    tx_in = TxIn.parse(coinbase_inp)
    assert tx_in.serialize().hex() == coinbase_inp
    assert tx_in.prev_out.is_coinbase

    coinbase = "01000000" "01" + coinbase_inp + "01" + coinbase_out + "00000000"
    tx = Tx.parse(coinbase)
    assert tx.serialize(include_witness=True).hex() == coinbase
    assert tx == Tx.from_dict(tx.to_dict())

    assert tx.version == 1
    assert tx.lock_time == 0
    assert len(tx.vin) == 1
    assert len(tx.vout) == 1

    assert tx.vin[0].script_sig == tx_in.script_sig
    assert tx.vout[0].script_pub_key == tx_out.script_pub_key

    tx_id = "0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098"
    assert tx.id.hex() == tx_id
    assert tx.id == tx.hash

    assert tx.size == 134
    assert tx.vsize == tx.size
    assert tx.weight == tx.size * 4
    assert not tx.is_segwit()
    assert not any(bool(w) for w in tx.vwitness)
    assert not any(bool(tx_in.script_witness) for tx_in in tx.vin)
    assert tx.is_coinbase()
Ejemplo n.º 28
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    def parse(cls: Type["Tx"],
              data: BinaryData,
              check_validity: bool = True) -> "Tx":
        "Return a Tx by parsing binary data."

        stream = bytesio_from_binarydata(data)

        # version is a signed int (int32_t) in bitcoin_core
        # However there are at least two transactions:
        # 35e79ee733fad376e76d16d1f10088273c2f4c2eaba1374a837378a88e530005
        # c659729a7fea5071361c2c1a68551ca2bf77679b27086cc415adeeb03852e369
        # where the version number is negative if it is considered as a signed
        # integer. As such in btclib the version is an UNSIGNED integer.
        # This has been discussed in: https://github.com/bitcoin/bitcoin/pull/16525
        version = int.from_bytes(stream.read(4),
                                 byteorder="little",
                                 signed=False)

        segwit = stream.read(2) == _SEGWIT_MARKER
        if not segwit:
            # Change stream position: seek to byte offset relative to position
            stream.seek(-2, SEEK_CUR)  # current position

        n = var_int.parse(stream)
        vin = [TxIn.parse(stream) for _ in range(n)]

        n = var_int.parse(stream)
        vout = [TxOut.parse(stream) for _ in range(n)]

        if segwit:
            for tx_in in vin:
                tx_in.script_witness = Witness.parse(stream, check_validity)

        lock_time = int.from_bytes(stream.read(4),
                                   byteorder="little",
                                   signed=False)

        return cls(version, lock_time, vin, vout, check_validity)
Ejemplo n.º 29
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def test_valid_taproot_key_path() -> None:
    fname = "tapscript_test_vector.json"
    filename = path.join(path.dirname(__file__), "_data", fname)
    with open(filename, "r", encoding="ascii") as file_:
        data = json.load(file_)

    for x in filter(lambda x: "TAPROOT" in x["flags"], data):

        tx = Tx.parse(x["tx"])

        prevouts = [TxOut.parse(prevout) for prevout in x["prevouts"]]
        index = x["index"]

        if not is_p2tr(prevouts[index].script_pub_key.script):
            continue

        assert not x["success"]["scriptSig"]

        witness = Witness(x["success"]["witness"])
        tx.vin[index].script_witness = witness

        if (len(witness.stack) == 1
                or len(witness.stack) == 2 and witness.stack[-1][0] == 0x50):

            sighash_type = 0  # all
            signature = witness.stack[0][:64]
            if len(witness.stack[0]) == 65:
                sighash_type = witness.stack[0][-1]
                assert sighash_type != 0

            msg_hash = sig_hash.from_tx(prevouts, tx, index, sighash_type)

            pub_key = type_and_payload(
                prevouts[index].script_pub_key.script)[1]

            ssa.assert_as_valid_(msg_hash, pub_key, signature)
Ejemplo n.º 30
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def test_tx() -> None:
    # default constructor
    tx = Tx()
    assert not tx.is_segwit()
    assert not any(bool(w) for w in tx.vwitness)
    assert not any(bool(tx_in.script_witness) for tx_in in tx.vin)
    assert not tx.is_coinbase()
    assert tx.version == 1
    assert tx.lock_time == 0
    assert not tx.vin
    assert not tx.vout
    assert tx.nVersion == tx.version
    assert tx.nLockTime == tx.lock_time
    tx_id = "d21633ba23f70118185227be58a63527675641ad37967e2aa461559f577aec43"
    assert tx.id.hex() == tx_id
    assert tx.hash == tx.id
    assert tx.size == 10
    assert tx.vsize == tx.size
    assert tx.weight == tx.size * 4

    tx_2 = Tx.from_dict(tx.to_dict())
    assert tx_2.is_segwit() == tx.is_segwit()
    assert tx_2 == tx

    tx_2 = Tx.parse(tx.serialize(include_witness=True))
    assert tx_2.is_segwit() == tx.is_segwit()
    assert tx_2 == tx

    tx_2 = Tx.parse(tx.serialize(include_witness=False))
    assert not tx_2.is_segwit()
    assert tx_2 == tx

    # non-default constructor, no segwit
    prev_out = OutPoint(
        "9dcfdb5836ecfe146bdaa896605ba21222f83cd014dd47adde14fab2aba7de9b", 1)
    script_sig = b""
    sequence = 0xFFFFFFFF
    tx_in = TxIn(prev_out, script_sig, sequence)

    tx_out1 = TxOut(2500000, "a914f987c321394968be164053d352fc49763b2be55c87")
    tx_out2 = TxOut(
        6381891,
        "0020701a8d401c84fb13e6baf169d59684e17abd9fa216c8cc5b9fc63d622ff8c58d")
    version = 1
    lock_time = 0
    tx = Tx(version, lock_time, [tx_in], [tx_out1, tx_out2])
    assert not tx.is_segwit()
    assert not any(bool(w) for w in tx.vwitness)
    assert not any(bool(tx_in.script_witness) for tx_in in tx.vin)
    assert not tx.is_coinbase()
    assert tx.version == 1
    assert tx.lock_time == 0
    assert len(tx.vin) == 1
    assert len(tx.vout) == 2
    assert tx.nVersion == tx.version
    assert tx.nLockTime == tx.lock_time
    tx_id = "4e52f7848dab7dd89ef7ba477939574198a170bfcb2fb34355c69f5e0169f63c"
    assert tx.id.hex() == tx_id
    assert tx.hash == tx.id
    assert tx.size == 126
    assert tx.vsize == tx.size
    assert tx.weight == tx.size * 4

    tx_2 = Tx.from_dict(tx.to_dict())
    assert tx_2.is_segwit() == tx.is_segwit()
    assert tx_2 == tx

    tx_2 = Tx.parse(tx.serialize(include_witness=True))
    assert tx_2.is_segwit() == tx.is_segwit()
    assert tx_2 == tx

    tx_2 = Tx.parse(tx.serialize(include_witness=False))
    assert not tx_2.is_segwit()
    assert tx_2 == tx

    # non-default constructor, with segwit
    version = 1
    lock_time = 0
    tx = Tx(version, lock_time, [tx_in], [tx_out1, tx_out2])
    stack = [
        "",
        "30440220421fbbedf2ee096d6289b99973509809d5e09589040d5e0d453133dd11b2f78a02205686dbdb57e0c44e49421e9400dd4e931f1655332e8d078260c9295ba959e05d01",
        "30440220398f141917e4525d3e9e0d1c6482cb19ca3188dc5516a3a5ac29a0f4017212d902204ea405fae3a58b1fc30c5ad8ac70a76ab4f4d876e8af706a6a7b4cd6fa100f4401",
        "52210375e00eb72e29da82b89367947f29ef34afb75e8654f6ea368e0acdfd92976b7c2103a1b26313f430c4b15bb1fdce663207659d8cac749a0e53d70eff01874496feff2103c96d495bfdd5ba4145e3e046fee45e84a8a48ad05bd8dbb395c011a32cf9f88053ae",
    ]
    tx.vin[0].script_witness = Witness(stack)
    assert tx.is_segwit()
    assert any(bool(w) for w in tx.vwitness)
    assert any(bool(tx_in.script_witness) for tx_in in tx.vin)
    assert not tx.is_coinbase()
    assert tx.version == 1
    assert tx.lock_time == 0
    assert len(tx.vin) == 1
    assert len(tx.vout) == 2
    assert tx.nVersion == tx.version
    assert tx.nLockTime == tx.lock_time
    tx_id = "4e52f7848dab7dd89ef7ba477939574198a170bfcb2fb34355c69f5e0169f63c"
    assert tx.id.hex() == tx_id
    hash_ = "d39eb3e3954be4bdc0b3be2d980124b1e1e11fb414b886b52939b07d95a58a8f"
    assert tx.hash.hex() == hash_
    assert tx.size == 380
    assert tx.vsize == 190
    assert tx.weight == 758

    tx_2 = Tx.from_dict(tx.to_dict())
    assert tx_2.is_segwit() == tx.is_segwit()
    assert tx_2 == tx

    tx_2 = Tx.parse(tx.serialize(include_witness=True))
    assert tx_2.is_segwit() == tx.is_segwit()
    assert tx_2 == tx

    tx_2 = Tx.parse(tx.serialize(include_witness=False))
    assert not tx_2.is_segwit()
    assert tx_2 != tx