| public EnsureBufferSize ( int numberOfBits ) : void | ||
| numberOfBits | int | |
| return | void | |
public override bool Encrypt(NetOutgoingMessage msg)
{
int unEncLenBits = msg.LengthBits;
var ms = new MemoryStream();
var cs = new CryptoStream(ms, m_algorithm.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(msg.m_data, 0, msg.LengthBytes);
//cs.Close();
cs.Dispose();
// get results
var arr = ms.ToArray();
//ms.Close();
ms.Dispose();
msg.EnsureBufferSize((arr.Length + 4) * 8);
msg.LengthBits = 0; // reset write pointer
msg.Write((uint)unEncLenBits);
msg.Write(arr);
msg.LengthBits = (arr.Length + 4) * 8;
return(true);
}
/// <summary>
/// Encrypt am outgoing message with this algorithm; no writing can be done to the message after encryption, or message will be corrupted
/// </summary>
public override bool Encrypt(NetOutgoingMessage msg)
{
int payloadBitLength = msg.LengthBits;
int numBytes = msg.LengthBytes;
int blockSize = BlockSize;
Span <byte> tmp = stackalloc byte[BlockSize];
int numBlocks = (int)Math.Ceiling(numBytes / (double)blockSize);
int dstSize = numBlocks * blockSize;
msg.EnsureBufferSize(dstSize * 8 + (4 * 8)); // add 4 bytes for payload length at end
msg.LengthBits = dstSize * 8; // length will automatically adjust +4 bytes when payload length is written
var dataSpan = msg.m_data;
for (int i = 0; i < numBlocks; i++)
{
// TODO: honestly is tmp even necessary here?
EncryptBlock(dataSpan, (i * blockSize), tmp);
//Buffer.BlockCopy(m_tmp, 0, dataSpan, (i * blockSize), m_tmp.Length);
tmp.CopyTo(dataSpan.Slice(i * blockSize, tmp.Length));
}
// add true payload length last
msg.Write((UInt32)payloadBitLength);
return(true);
}
public override bool Encrypt(NetOutgoingMessage msg)
{
int unEncLenBits = msg.LengthBits;
var ms = new MemoryStream();
var cs = GetEncryptStream(ms);
cs.Write(msg.m_data, 0, msg.LengthBytes);
cs.Close();
// get results
var arr = ms.ToArray();
ms.Close();
msg.EnsureBufferSize((arr.Length + 4) * 8);
msg.LengthBits = 0; // reset write pointer
msg.Write((uint)unEncLenBits);
msg.Write(arr);
msg.LengthBits = (arr.Length + 4) * 8;
return true;
}
public override bool Encrypt(NetOutgoingMessage msg)
{
int unEncLenBits = msg.LengthBits;
var ms = new MemoryStream();
var cs = GetEncryptStream(ms);
cs.Write(msg.m_data, 0, msg.LengthBytes);
cs.Close();
// get results
var arr = ms.ToArray();
ms.Close();
msg.EnsureBufferSize((arr.Length + 4) * 8);
msg.LengthBits = 0; // reset write pointer
msg.Write((uint)unEncLenBits);
msg.Write(arr);
msg.LengthBits = (arr.Length + 4) * 8;
return true;
}
/// <summary>
/// Encrypt am outgoing message with this algorithm; no writing can be done to the message after encryption, or message will be corrupted
/// </summary>
public bool Encrypt(NetOutgoingMessage msg)
{
int payloadBitLength = msg.LengthBits;
int numBytes = msg.LengthBytes;
int blockSize = BlockSize;
int numBlocks = (int)Math.Ceiling((double)numBytes / (double)blockSize);
int dstSize = numBlocks * blockSize;
msg.EnsureBufferSize(dstSize * 8 + (4 * 8)); // add 4 bytes for payload length at end
msg.LengthBits = dstSize * 8; // length will automatically adjust +4 bytes when payload length is written
for (int i = 0; i < numBlocks; i++)
{
EncryptBlock(msg.m_data, (i * blockSize), m_tmp);
Buffer.BlockCopy(m_tmp, 0, msg.m_data, (i * blockSize), m_tmp.Length);
}
// add true payload length last
msg.Write((UInt32)payloadBitLength);
return true;
}
/// <summary>
/// Encrypt am outgoing message with this algorithm; no writing can be done to the message after encryption, or message will be corrupted
/// </summary>
public override bool Encrypt(NetOutgoingMessage msg)
{
int payloadBitLength = msg.LengthBits;
int numBytes = msg.LengthBytes;
int blockSize = BlockSize;
int numBlocks = (int)Math.Ceiling((double)numBytes / (double)blockSize);
int dstSize = numBlocks * blockSize;
msg.EnsureBufferSize(dstSize * 8 + (4 * 8)); // add 4 bytes for payload length at end
msg.LengthBits = dstSize * 8; // length will automatically adjust +4 bytes when payload length is written
for (int i = 0; i < numBlocks; i++)
{
EncryptBlock(msg.m_data, (i * blockSize), m_tmp);
Buffer.BlockCopy(m_tmp, 0, msg.m_data, (i * blockSize), m_tmp.Length);
}
// add true payload length last
msg.Write((UInt32)payloadBitLength);
return(true);
}
public static NetOutgoingMessage Compress(NetOutgoingMessage msg)
{
msg.WritePadBits();
byte[] input = msg.PeekDataBuffer();
byte[] output = new byte[input.Length*2];
int outlength = ZipCompressor.Instance.Compress(input, msg.LengthBytes, output);
msg.EnsureBufferSize(outlength*8);
input = msg.PeekDataBuffer();
Array.Copy(output, input, outlength);
msg.LengthBytes = outlength;
msg.LengthBits = outlength * 8;
return msg;
}