<PackageReference Include="BouncyCastle.Cryptography" Version="2.5.0" />

IMessageSigner

public interface IMessageSigner
Base interface for a PQC signature algorithm.
using Org.BouncyCastle.Crypto; namespace Org.BouncyCastle.Pqc.Crypto { public interface IMessageSigner { void Init(bool forSigning, ICipherParameters param); byte[] GenerateSignature(byte[] message); bool VerifySignature(byte[] message, byte[] signature); } }