trezor-firmware/core/tests/test_apps.binance.sign_tx.py

from common import *  # isort:skip

from trezor.crypto.curve import secp256k1
from trezor.crypto.hashlib import sha256

if not utils.BITCOIN_ONLY:
    from trezor.messages import (
        BinanceCancelMsg,
        BinanceCoin,
        BinanceInputOutput,
        BinanceOrderMsg,
        BinanceSignTx,
        BinanceTransferMsg,
    )

    from apps.binance.helpers import produce_json_for_signing


# NOTE: copy-pasted from apps.binance.sign_tx
def generate_content_signature(json: bytes, private_key: bytes) -> bytes:
    msghash = sha256(json).digest()
    return secp256k1.sign(private_key, msghash)[1:65]


@unittest.skipUnless(not utils.BITCOIN_ONLY, "altcoin")
class TestBinanceSign(unittest.TestCase):
    def test_order_signature(self):
        # source of testing data
        # https://github.com/binance-chain/javascript-sdk/blob/master/__tests__/fixtures/placeOrder.json
        json_msg = '{"account_number":"34","chain_id":"Binance-Chain-Nile","data":null,"memo":"","msgs":[{"id":"BA36F0FAD74D8F41045463E4774F328F4AF779E5-33","ordertype":2,"price":100000000,"quantity":100000000,"sender":"tbnb1hgm0p7khfk85zpz5v0j8wnej3a90w709zzlffd","side":1,"symbol":"ADA.B-B63_BNB","timeinforce":1}],"sequence":"32","source":"1"}'
        expected_signature = "851fc9542342321af63ecbba7d3ece545f2a42bad01ba32cff5535b18e54b6d3106e10b6a4525993d185a1443d9a125186960e028eabfdd8d76cf70a3a7e3100"
        public_key = (
            "029729a52e4e3c2b4a4e52aa74033eedaf8ba1df5ab6d1f518fd69e67bbd309b0e"
        )
        private_key = "90335b9d2153ad1a9799a3ccc070bd64b4164e9642ee1dd48053c33f9a3a05e9"

        # Testing data for object creation is decoded from json_msg
        envelope = BinanceSignTx(
            msg_count=1,
            account_number=34,
            chain_id="Binance-Chain-Nile",
            memo="",
            sequence=32,
            source=1,
        )
        msg = BinanceOrderMsg(
            id="BA36F0FAD74D8F41045463E4774F328F4AF779E5-33",
            ordertype=2,
            price=100000000,
            quantity=100000000,
            sender="tbnb1hgm0p7khfk85zpz5v0j8wnej3a90w709zzlffd",
            side=1,
            symbol="ADA.B-B63_BNB",
            timeinforce=1,
        )

        msg_json = produce_json_for_signing(envelope, msg)

        # check if our json string produced for signing is the same as test vector
        self.assertEqual(msg_json, json_msg)

        # verify signature against public key
        signature = generate_content_signature(
            msg_json.encode(), unhexlify(private_key)
        )
        self.assertTrue(
            verify_content_signature(unhexlify(public_key), signature, json_msg)
        )

        # check if the signed data is the same as test vector
        self.assertEqual(signature, unhexlify(expected_signature))

    def test_cancel_signature(self):
        # source of testing data
        # https://github.com/binance-chain/javascript-sdk/blob/master/__tests__/fixtures/cancelOrder.json
        json_msg = '{"account_number":"34","chain_id":"Binance-Chain-Nile","data":null,"memo":"","msgs":[{"refid":"BA36F0FAD74D8F41045463E4774F328F4AF779E5-29","sender":"tbnb1hgm0p7khfk85zpz5v0j8wnej3a90w709zzlffd","symbol":"BCHSV.B-10F_BNB"}],"sequence":"33","source":"1"}'
        expected_signature = "d93fb0402b2b30e7ea08e123bb139ad68bf0a1577f38592eb22d11e127f09bbd3380f29b4bf15bdfa973454c5c8ed444f2e256e956fe98cfd21e886a946e21e5"
        public_key = (
            "029729a52e4e3c2b4a4e52aa74033eedaf8ba1df5ab6d1f518fd69e67bbd309b0e"
        )
        private_key = "90335b9d2153ad1a9799a3ccc070bd64b4164e9642ee1dd48053c33f9a3a05e9"

        # Testing data for object creation is decoded from json_msg
        envelope = BinanceSignTx(
            msg_count=1,
            account_number=34,
            chain_id="Binance-Chain-Nile",
            memo="",
            sequence=33,
            source=1,
        )
        msg = BinanceCancelMsg(
            refid="BA36F0FAD74D8F41045463E4774F328F4AF779E5-29",
            sender="tbnb1hgm0p7khfk85zpz5v0j8wnej3a90w709zzlffd",
            symbol="BCHSV.B-10F_BNB",
        )

        msg_json = produce_json_for_signing(envelope, msg)

        # check if our json string produced for signing is the same as test vector
        self.assertEqual(msg_json, json_msg)

        # verify signature against public key
        signature = generate_content_signature(
            msg_json.encode(), unhexlify(private_key)
        )
        self.assertTrue(
            verify_content_signature(unhexlify(public_key), signature, json_msg)
        )

        # check if the signed data is the same as test vector
        self.assertEqual(signature, unhexlify(expected_signature))

    def test_transfer_signature(self):
        # source of testing data
        # https://github.com/binance-chain/javascript-sdk/blob/master/__tests__/fixtures/transfer.json
        json_msg = '{"account_number":"34","chain_id":"Binance-Chain-Nile","data":null,"memo":"test","msgs":[{"inputs":[{"address":"tbnb1hgm0p7khfk85zpz5v0j8wnej3a90w709zzlffd","coins":[{"amount":1000000000,"denom":"BNB"}]}],"outputs":[{"address":"tbnb1ss57e8sa7xnwq030k2ctr775uac9gjzglqhvpy","coins":[{"amount":1000000000,"denom":"BNB"}]}]}],"sequence":"31","source":"1"}'
        expected_signature = "faf5b908d6c4ec0c7e2e7d8f7e1b9ca56ac8b1a22b01655813c62ce89bf84a4c7b14f58ce51e85d64c13f47e67d6a9187b8f79f09e0a9b82019f47ae190a4db3"
        public_key = (
            "029729a52e4e3c2b4a4e52aa74033eedaf8ba1df5ab6d1f518fd69e67bbd309b0e"
        )
        private_key = "90335b9d2153ad1a9799a3ccc070bd64b4164e9642ee1dd48053c33f9a3a05e9"

        # Testing data for object creation is decoded from json_msg
        envelope = BinanceSignTx(
            msg_count=1,
            account_number=34,
            chain_id="Binance-Chain-Nile",
            memo="test",
            sequence=31,
            source=1,
        )
        coin = BinanceCoin(denom="BNB", amount=1000000000)
        first_input = BinanceInputOutput(
            address="tbnb1hgm0p7khfk85zpz5v0j8wnej3a90w709zzlffd", coins=[coin]
        )
        first_output = BinanceInputOutput(
            address="tbnb1ss57e8sa7xnwq030k2ctr775uac9gjzglqhvpy", coins=[coin]
        )
        msg = BinanceTransferMsg(inputs=[first_input], outputs=[first_output])

        msg_json = produce_json_for_signing(envelope, msg)

        # check if our json string produced for signing is the same as test vector
        self.assertEqual(msg_json, json_msg)

        # verify signature against public key
        signature = generate_content_signature(
            msg_json.encode(), unhexlify(private_key)
        )
        self.assertTrue(
            verify_content_signature(unhexlify(public_key), signature, json_msg)
        )

        # check if the signed data is the same as test vector
        self.assertEqual(signature, unhexlify(expected_signature))


def verify_content_signature(
    public_key: bytes, signature: bytes, unsigned_data: bytes
) -> bool:
    msghash = sha256(unsigned_data).digest()
    return secp256k1.verify(public_key, signature, msghash)


if __name__ == "__main__":
    unittest.main()