using Renci.SshNet.Common; namespace Renci.SshNet.Security.Cryptography.Ciphers { public abstract class CipherMode { protected BlockCipher Cipher; protected byte[] IV; protected int _blockSize; protected CipherMode(byte[] iv) { IV = iv; } internal void Init(BlockCipher cipher) { Cipher = cipher; _blockSize = cipher.BlockSize; IV = IV.Take(_blockSize); } public abstract int EncryptBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset); public abstract int DecryptBlock(byte[] inputBuffer, int inputOffset, int inputCount, byte[] outputBuffer, int outputOffset); } }