# Web3开发学习笔记-签名与验签

By [dataverse](https://paragraph.com/@lone) · 2021-12-29

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### 消息签名:

    from web3.auto import w3
    from eth_account.messages import encode_defunct
    msg = '3753e107d66160e71eac'
    privatekey = '1234567890abcdef'
    message_hash = encode_defunct(text=msg)
    signer = w3.eth.account.sign_message(message_hash, private_key=privatekey )
    signature = signer.signature.hex()
    

### 签名验证:

    message_hash='0xeb276f6b7c31750f5cec63a36ca4cc1aed469bb8989a56b3e08a8152e1fa57dc'
    signature="0x7433929d09a0ac21b31e9b21bea923af87d6bf25d74121a37e2ca11f0ddf937c7d689a362d6d691e54a5e7f48e8444411b912425aa479e3a2a57936cffa1ded41c"
    sign_address = w3.eth.account.recoverHash(message_hash, signature=signature)

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*Originally published on [dataverse](https://paragraph.com/@lone/web3)*