public static string Decode(string key, byte[] bt)
{
byte[] dbt = new byte[bt.Length - 3];
Buffer.BlockCopy(bt, 3, dbt, 0, dbt.Length);
string ret = Encrypter_AES.DecryptToString(dbt, key);
return(ret);
}
public static byte[] Encode(string key, byte[] bt, ushort protocolVersion, bool isSpecifiedKey)
{
byte[] body = Encrypter_AES.EncryptBinary(bt, key); //AES密文
byte[] tempdata = BitConverter.GetBytes(isSpecifiedKey); //是否使用服务器指定密码
body = body.Prepend(tempdata);
tempdata = BitConverter.GetBytes(protocolVersion); //协议版本号
body = body.Prepend(tempdata);
tempdata = BitConverter.GetBytes((UInt32)(body.Length)); //包体长度
body = body.Prepend(tempdata);
return(body);
}