<PackageReference Include="BouncyCastle.Cryptography" Version="2.4.0" />

Org.BouncyCastle.Crypto.Encodings.ISO9796d1Encoding

namespace Org.BouncyCastle.Crypto.Encodings { public class ISO9796d1Encoding : IAsymmetricBlockCipher { public string AlgorithmName { get; } public IAsymmetricBlockCipher UnderlyingCipher { get; } public ISO9796d1Encoding(IAsymmetricBlockCipher cipher); public void Init(bool forEncryption, ICipherParameters parameters); public int GetInputBlockSize(); public int GetOutputBlockSize(); public void SetPadBits(int padBits); public int GetPadBits(); public byte[] ProcessBlock(byte[] input, int inOff, int length); } }