Is there any framework or functions for ECDSA in iOS?
I can not find this information in documentation. Please, can you show me if it is possible to implement ECDSA using some native framework. I can implement it using OpenSSL but Apple has deprecated it. Therefore, I think Apple could provide some other ways. Also I need some other information if it is possible:
- could I use different hash functions (for example SHA256)
- do I have an ability to recover public key by data hash and signature
- what curve types could I use
Thank you for reply.
Konstantin