Gavin

Thanks for your reply! In issue #8, the signature length is 72 bytes, and it's still not 64 bytes. Whenever I pass a signature with length not equal to 64...

While it looks like I was using a wrong function... It's wired. When I pass a signature to [crypto verifySignature: forHash:], it throws exception "Signature must be twice the length...

Thanks. One more question. The function [crypto hashSHA256AndVerifyEncodedSignature: forData:] keeps return false, but the signature is indeed a valid signature. So I check the details. I found when I generate...

The signature is "MEUCIF+U7aD6Y/qny7hALRmd2ShHQmIeSaT/KpTyQKnkFouKAiEAymuPRFDeaAIz55rj57munOo+3pUvgrrQSl9zwjoTnYM=". Public key is "BLTdfdt0SXa4XhqH7WbEytFOj/r5wxBbRH1HgVXzNb+aEJaOPAIk5wy3cT7VlY29s+f4HYNA8QBlL9ylM1M7AjI=". All are base64 encoded. I don't have the private key for now......

So this library does not support secp256k1?

Yes, I'm using secp256k1. So are you going to support this standard later on? The fact is I really can't find any good libraries supporting secp256k1 for iOS development, except...

Thank you so much! Your reply is very helpful. I will try to use that library, and obviously, it's not well documented as your library. Anyway, I will give it...

Hi ricmoo, sorry to bother you again. When I was using the library you recommended, I got a problem. Since the length of DER encoded ECDSA signature can be 70,...

My deadline is around the end of this month, but it's OK since I have made some progress of using your recommended library. You have already helped me a lot!...