public override void WriteMessage(Message message, Stream stream)
{
#if Encrypt
if (RSAProvider.NoRSA())
{
this._inner.WriteMessage(message, stream);
}
MemoryStream ms = new MemoryStream();
this._inner.WriteMessage(message, ms);
byte[] buffer = ms.ToArray();
byte[] key = null;
byte[] iv = null;
RSACryptoServiceProvider rsa = RSAProvider.UseRSA();
if (null == rsa)
{
buffer = AESEncrypt.Encrypt(buffer, 0, buffer.Length);
}
else
{
byte[] keyData;
byte[] ivData;
BuildAESKey(out keyData, out ivData);
buffer = AESEncrypt.Encrypt(buffer, 0, buffer.Length, keyData, ivData);
key = rsa.Encrypt(keyData, true);
iv = rsa.Encrypt(ivData, true);
}
if (null == key)
{
stream.WriteByte(0);
stream.WriteByte(0);
stream.Write(buffer, 0, buffer.Length);
}
else
{
stream.Write(BitConverter.GetBytes((ushort)key.Length), 0, 2);
stream.Write(key, 0, key.Length);
stream.Write(BitConverter.GetBytes((ushort)iv.Length), 0, 2);
stream.Write(iv, 0, iv.Length);
stream.Write(buffer, 0, buffer.Length);
}
#else
this._inner.WriteMessage(message, stream);
#endif
}
public override ArraySegment <byte> WriteMessage(Message message, int maxMessageSize, BufferManager bufferManager, int messageOffset)
{
#if Encrypt
if (RSAProvider.NoRSA())
{
return(this._inner.WriteMessage(message, maxMessageSize, bufferManager));
}
ArraySegment <byte> bytes = this._inner.WriteMessage(message, maxMessageSize, bufferManager);
if (bytes.Count == 0)
{
return(bytes);
}
byte[] buffer;
byte[] key = null;
byte[] iv = null;
RSACryptoServiceProvider rsa = RSAProvider.UseRSA();
if (null == rsa)
{
buffer = AESEncrypt.Encrypt(bytes.Array, bytes.Offset, bytes.Count);
}
else
{
byte[] keyData;
byte[] ivData;
BuildAESKey(out keyData, out ivData);
buffer = AESEncrypt.Encrypt(bytes.Array, bytes.Offset, bytes.Count, keyData, ivData);
key = rsa.Encrypt(keyData, true);
iv = rsa.Encrypt(ivData, true);
}
if (null == key)
{
int totalLength = 2 + buffer.Length + messageOffset;
byte[] totalBytes = bufferManager.TakeBuffer(totalLength);
int index = messageOffset;
totalBytes[index] = 0;
totalBytes[index + 1] = 0;
index += 2;
Array.Copy(buffer, 0, totalBytes, index, buffer.Length);
ArraySegment <byte> byteArray = new ArraySegment <byte>(totalBytes, messageOffset, totalLength - messageOffset);
return(byteArray);
}
else
{
int totalLength = 4 + key.Length + iv.Length + buffer.Length + messageOffset;
byte[] totalBytes = bufferManager.TakeBuffer(totalLength);
int index = messageOffset;
Array.Copy(BitConverter.GetBytes((ushort)key.Length), 0, totalBytes, index, 2);
index += 2;
Array.Copy(key, 0, totalBytes, index, key.Length);
index += key.Length;
Array.Copy(BitConverter.GetBytes((ushort)iv.Length), 0, totalBytes, index, 2);
index += 2;
Array.Copy(iv, 0, totalBytes, index, iv.Length);
index += iv.Length;
Array.Copy(buffer, 0, totalBytes, index, buffer.Length);
ArraySegment <byte> byteArray = new ArraySegment <byte>(totalBytes, messageOffset, totalLength - messageOffset);
return(byteArray);
}
#else
return(this._inner.WriteMessage(message, maxMessageSize, bufferManager, messageOffset));
#endif
}