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

Org.BouncyCastle.Crypto.Parameters.IesWithCipherParameters

namespace Org.BouncyCastle.Crypto.Parameters { public class IesWithCipherParameters : IesParameters { public int CipherKeySize { get; } public IesWithCipherParameters(byte[] derivation, byte[] encoding, int macKeySize, int cipherKeySize); } }