namespace Org.BouncyCastle.Crypto.Engines { public class VmpcEngine : IStreamCipher { protected byte n; protected byte[] P; protected byte s; protected byte[] workingIV; protected byte[] workingKey; public virtual string AlgorithmName { get; } public virtual void Init(bool forEncryption, ICipherParameters parameters); protected virtual void InitKey(byte[] keyBytes, byte[] ivBytes); public virtual void ProcessBytes(byte[] input, int inOff, int len, byte[] output, int outOff); public virtual void Reset(); public virtual byte ReturnByte(byte input); public VmpcEngine(); } }