sign method
Signs a message digest using the ECDSA algorithm on the secp256R1 curve.
Parameters:
digest: The message digest to be signed.hashMessage: Whether to hash the message before signing (default is true).
Throws:
- ArgumentException if the digest length is invalid.
Implementation
List<int> sign(List<int> digest, {bool hashMessage = true}) {
return _signEcdsa(digest, hashMessage: hashMessage);
}