Aptos Raw Tx Breakdown

import hashlib

prefix = hashlib.sha3_256(b'APTOS::Transaction').digest()
enum_byte = bytes.fromhex('00')  # 0 means the first item in enum Transaction (UserTransaction), see: https://github.com/aptos-labs/aptos-core/blob/6cdd4c27275f355774e55d346738f346b629289e/types/src/transaction/mod.rs#L1954
tx_data = bytes.fromhex('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')

tx_hash = hashlib.sha3_256(prefix + enum_byte + tx_data).hexdigest()
print("tx hash:", tx_hash)  # b2eda34a428fd3f0aaf2c3898c4cefcad251b8533f8e796642199f4e78af8084

import asyncio
import time

from aptos_sdk.account import Account               # pip install aptos-sdk
from aptos_sdk.async_client import RestClient
from aptos_sdk.bcs import Serializer
from aptos_sdk.transactions import (
    EntryFunction,
    TransactionArgument,
    TransactionPayload,
    RawTransaction,
    SignedTransaction,
)


async def main():
    base_url = 'https://fullnode.testnet.aptoslabs.com/v1'
    rest_client = RestClient(base_url)

    alice = Account.load_key('b7d58a41ffb3fb0cbfb813624c40fd7c5dad993865e809aec7697c0a02061d11')
    bob = Account.load_key('ccfbdef863a7bd27e3a3a7c5a897201b63aa95bfe46f6e44c0d224fc382dbf01')

    sender = alice
    recipient = bob.address()
    amount = 123

    # 下面的所有代码其实用一个函数 rest_client.bcs_transfer(sender, recipient, amount) 就行了，这里仅仅是演示目的

    transaction_arguments = [
        TransactionArgument(recipient, Serializer.struct),
        TransactionArgument(amount, Serializer.u64),
    ]

    payload = EntryFunction.natural(
        module="0x1::aptos_account",
        function="transfer",
        ty_args=[],
        args=transaction_arguments,
    )

    sequence_number = await rest_client.account_sequence_number(sender.address())
    chain_id = await rest_client.chain_id()  # 1/2: mainnet/testnet

    raw_transaction = RawTransaction(
        sender.address(),
        sequence_number,
        TransactionPayload(payload),
        rest_client.client_config.max_gas_amount,
        rest_client.client_config.gas_unit_price,
        int(time.time()) + rest_client.client_config.expiration_ttl,
        chain_id,
        )

    authenticator = raw_transaction.sign(sender.private_key)
    signed_transaction = SignedTransaction(raw_transaction, authenticator)

    print("signed_transaction (hex)", signed_transaction.bytes().hex())  # 9cc107ca00ed1f08c33ebe2ce1d39b213b755e300c608827e0aa7b3d16c6e78f01000000000000000200000000000000000000000000000000000000000000000000000000000000010d6170746f735f6163636f756e74087472616e73666572000220ab156a8328d4b4bdb9ab1fba7d8c28f7d62126d01154a3145e10212b5e7c7bae087b00000000000000a08601000000000064000000000000002213266600000000020020f02b2e4600d68eca9565026b1e9ad528df287a20fe63d98adc5690284e9649d540327e384dacb3679817cf36703150a2e1d10a9f85e635996d91659d72ca57d2e4c18d71032f9ff46802703f5d3b0401b3330b9e318eb7ad18b8099219db302a0a

    # 提交上链
    headers = {"Content-Type": "application/x.aptos.signed_transaction+bcs"}
    response = await rest_client.client.post(
        f"{base_url}/transactions",
        headers=headers,
        content=signed_transaction.bytes(),
    )
    print("node response", response.text)
    tx_hash = response.json()["hash"]
    print("tx_hash", tx_hash)

    await rest_client.close()


if __name__ == "__main__":
    asyncio.run(main())

import hashlib
import nacl.encoding
import nacl.signing

# 指定私钥
private_key = bytes.fromhex('b7d58a41ffb3fb0cbfb813624c40fd7c5dad993865e809aec7697c0a02061d11')

# 使用指定的私钥生成签名密钥
signing_key = nacl.signing.SigningKey(private_key, encoder=nacl.encoding.RawEncoder)

# 生成验证密钥
verify_key = signing_key.verify_key
print("public key:", verify_key.encode().hex())

# 要签名的消息
prepend_data = hashlib.sha3_256(b'APTOS::RawTransaction').hexdigest()  # b5e97db07fa0bd0e5598aa3643a9bc6f6693bddc1a9fec9e674a461eaa00b193
data = bytes.fromhex(prepend_data + '9cc107ca00ed1f08c33ebe2ce1d39b213b755e300c608827e0aa7b3d16c6e78f01000000000000000200000000000000000000000000000000000000000000000000000000000000010d6170746f735f6163636f756e74087472616e73666572000220ab156a8328d4b4bdb9ab1fba7d8c28f7d62126d01154a3145e10212b5e7c7bae087b00000000000000a0860100000000006400000000000000221326660000000002')

# 对 data 进行签名
signature = signing_key.sign(data).signature
print("signature:", signature.hex())     # 327e384dacb3679817cf36703150a2e1d10a9f85e635996d91659d72ca57d2e4c18d71032f9ff46802703f5d3b0401b3330b9e318eb7ad18b8099219db302a0a

# 验证签名
try:
    verify_key.verify(data, signature)
    print("Signature verified")
except nacl.exceptions.BadSignatureError:
    print("Signature verification failed")