How can I use ecrecover function in solidity to verify digital currency transactions?

3 answers

• Olalekan AjirotutuJul 26, 2020 · 5 years ago
  Sure, I can help you with that! To use the ecrecover function in Solidity, you need to follow these steps: 1. Obtain the signed message and the signature from the transaction. 2. Extract the message hash from the signed message. 3. Recover the public key from the signature using the ecrecover function. 4. Verify that the recovered public key matches the expected address. By comparing the recovered address with the expected address, you can verify the authenticity of the transaction. Let me know if you need further assistance!
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• Asfaw AlemayehuJun 13, 2023 · 2 years ago
  Using the ecrecover function in Solidity to verify digital currency transactions is quite straightforward. First, you need to extract the message hash from the signed message. Then, you can call the ecrecover function with the message hash, signature parameters, and v value. The ecrecover function will return the public key associated with the signature. Finally, you can compare the recovered public key with the expected address to verify the transaction. If they match, the transaction is valid. Otherwise, it's invalid. Feel free to ask if you have any more questions!
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• Saurabh Arun MishraNov 22, 2023 · 2 years ago
  Hey there! Verifying digital currency transactions using the ecrecover function in Solidity is a crucial step in ensuring the integrity of the blockchain. To use ecrecover, you'll need to extract the message hash from the signed message and pass it along with the signature to the ecrecover function. This function will return the public key associated with the signature. You can then compare this public key with the expected address to verify the transaction. Keep in mind that the ecrecover function is only available in Solidity versions 0.6.0 and above. If you're using an older version, you'll need to upgrade. Let me know if you need any more help!
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