<PackageReference Include="BouncyCastle.Cryptography" Version="2.6.2" />

Org.BouncyCastle.Crypto.Operators.DefaultVerifierResult

namespace Org.BouncyCastle.Crypto.Operators { public class DefaultVerifierResult : IVerifier { public DefaultVerifierResult(ISigner signer); public bool IsVerified(byte[] signature); public bool IsVerified(byte[] sig, int sigOff, int sigLen); } }