I am using Oraclize to recover a signature from a website. When I have it, I have to check if the address who signed it is correct. To do that, I would use ECRecovery from Zeppelin.
The signature returned by Oraclize is a hexadecimal string like this
recover expects the signature being a 65-bytes long
Is there any way to do the conversion in Solidity?
Thanks so much in advance.