public override unsafe bool Decrypt(NetIncomingMessage message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
int unEncLenBits = (int)message.ReadUInt32();
int byteLen = NetBitWriter.BytesForBits(unEncLenBits);
var result = message.StoragePool.Rent(byteLen);
// TODO: create stream that takes Memory<byte> overload
fixed(byte *msgPtr = message.GetBuffer())
{
using var ms = new UnmanagedMemoryStream(msgPtr + 4, message.ByteLength - 4);
using var decryptor = Algorithm.CreateDecryptor();
using var cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read);
cs.Read(result, 0, byteLen);
}
message.SetBuffer(result, true);
message.BitLength = unEncLenBits;
message.BitPosition = 0;
return(true);
}
public override bool Decrypt(NetIncomingMessage message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
byte[] data = message.GetBuffer();
Span <byte> slice = data.AsSpan(0, message.ByteLength);
for (int i = 0; i < slice.Length; i++)
{
int offset = i % _key.Length;
slice[i] = (byte)(slice[i] ^ _key[offset]);
}
return(true);
}
