public static byte[] Pack(byte[] datas, IList <byte[]> serverKeys, bool seedCreated)
{
seedCreated = false;
//先压缩 在加密
var compress = true ? ZipFactory.GetZip().Compress(datas) : datas;
var d = seedCreated ? CryptoFactory.GetCrypto(1).Encode(compress, serverKeys[0]) : compress;
var cryptoByte = new byte[1];
cryptoByte[0] = seedCreated ? (byte)128 : (byte)0;
var zipByte = new byte[1];
zipByte[0] = true ? (byte)128 : (byte)0;
using (var stream = new MemoryStream())
{
stream.Write(BitConverter.GetBytes(d.Length + 6), 0, 4);
stream.Write(zipByte, 0, 1);
stream.Write(cryptoByte, 0, 1);
stream.Write(d, 0, d.Length);
return(stream.ToArray());
}
}
public static byte[] Unpack(byte[] datas, IList <byte[]> clientKeys)
{
byte[] dataBytes = null;
var zipBit = new byte[1];
var cryptoBit = new byte[1];
using (var stream = new MemoryStream(datas))
{
var lenBytes = new byte[4];
stream.Read(lenBytes, 0, 4);
stream.Read(zipBit, 0, 1);
stream.Read(cryptoBit, 0, 1);
var len = BitConverter.ToInt32(lenBytes, 0) - 6;
dataBytes = new byte[len];
stream.Read(dataBytes, 0, len);
}
for (var i = 0; i < 8; i++)
{
var v = Utils.GetbitValue(cryptoBit[0], i);
if (v == 1)
{
dataBytes = CryptoFactory.GetCrypto((byte)(7 - i)).Decode(dataBytes, clientKeys[7 - i]);
}
}
if (true)
{
for (int i = 0; i < 8; i++)
{
var v = Utils.GetbitValue(zipBit[0], i);
if (v == 1)
{
dataBytes = ZipFactory.GetZip().Decompress(dataBytes);
}
}
}
return(dataBytes);
}
