SM2Engine public class SM2Engine SM2 public key encryption engine - based on https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02. Documentation Code public enum Mode public SM2Engine() public SM2Engine(Mode mode) public SM2Engine(IDigest digest) public SM2Engine(IDigest digest, Mode mode) protected virtual ECMultiplier CreateBasePointMultiplier() public virtual void Init(bool forEncryption, ICipherParameters param) public virtual byte[] ProcessBlock(byte[] input, int inOff, int inLen) public virtual byte[] ProcessBlock(ReadOnlySpan<byte> input)