public static string EncodeWithGzip(string m, string key)
{
byte[] raw = Encoding.UTF8.GetBytes(m);
byte[] dest;
using (MemoryStream stream = new MemoryStream())
{
using (GZipOutputStream stream1 = new GZipOutputStream(stream))
{
stream1.IsStreamOwner = false;
stream1.Write(raw, 0, raw.Length);
stream1.Flush();
stream1.Finish();
dest = stream.ToArray();
}
}
byte[] bytes = new byte[dest.Length + 0x1a];
Array.Copy(dest, 0, bytes, 0x1a, dest.Length);
Array.Copy(Encoding.UTF8.GetBytes("0000000000"), 0, bytes, 0, 10);
//1
//还有26byte待解决
int lengthOfACode = 0;
key = AuthCode.MD5(key);
string str = AuthCode.MD5(key.Substring(0x10, 0x10));
string s = AuthCode.MD5(key.Substring(0x0, 0x10));
string str3 = (lengthOfACode > 0) ? m.Substring(0, lengthOfACode) : "";
string pass = str + AuthCode.MD5(str + str3);
//1
byte[] buffer4 = new byte[(bytes.Length - 0x1a) + s.Length];
Array.Copy(dest, 0, buffer4, 0, dest.Length);
Array.Copy(Encoding.UTF8.GetBytes(s), 0, buffer4, dest.Length, s.Length);
Array.Copy(Encoding.UTF8.GetBytes(AuthCode.MD5(buffer4)), 0, bytes, 10, 0x10);
byte[] buffer = RC4(bytes, pass);
string result = Convert.ToBase64String(buffer);
return("#" + new string(new char[lengthOfACode]) + result);
}