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JSeam2/Recover_Account.py

Created October 25, 2021 07:41
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Recover eth account on web3.py signed with signMessage() on ethers.js
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Recover_Account.py
import web3
w3 = web3.Web3()
prefix = "\x19Ethereum Signed Message:\n"
message = "Verify your Eth address. zveyIPmNyiaCNRjJ9hsbYqEJPb7gJTgNzm2ybM_F-SQ"
signed = "0x4481dffa200bc4c9cadad4083002585fbe20aebef1916aa7d58e66682860097747df3f7fb608c30ff19adbf52ab4ef2a8eabb553857373b0767d43afd83f09ea1c"
prefix = w3.toBytes(text=prefix)
msg = w3.toBytes(text=message)
sign = w3.toHex(text=signed)
hashmsg = w3.keccak(prefix + w3.toBytes(text=str(len(msg))) + msg)
recover = w3.eth.account.recoverHash(hashmsg, signature=signed)
print(recover)
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JSeam2 commented Oct 25, 2021

You will call something like library.getSigner().signMessage(unsigned_message) on the client.

library and .getSigner() is web3-react specific.

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