Legacy Account Key

從 eth_utils 和 eth_account 導入必要的實用程序

從web3py_ext導入extend，將 web3 擴展為 kaia web3

使用 **Account.from_key ** 從私人密鑰定義錢包

定義要簽署的任何信息

使用encode_defunct對報文進行格式化，使其與 EIP-191 標準兼容。

使用創建的賬戶簽署交易

使用Account.rec recover_message從簽名郵件中恢復發件人地址

web3_legacy_value_transfer_message_recover.py

from eth_account import Account

from eth_account.messages import encode_defunct

from eth_utils.curried import to_hex

from web3py_ext import extend

def web3_legacy_value_transfer_sign_recover():

user = Account.from_key('0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8')

message_text = "I♥KLAYTN"

msghash = encode_defunct(text=message_text)

signature = Account.sign_message(msghash, user.key)

recovered = Account.recover_message(msghash, signature=signature.signature)

print("\nsender", user.address, "\nrecovered", recovered)

web3_legacy_value_transfer_sign_recover()

output

python web3_legacy_value_transfer_message_recover.py

sender 0xA2a8854b1802D8Cd5De631E690817c253d6a9153

recovered 0xA2a8854b1802D8Cd5De631E690817c253d6a9153