using System;

namespace SHN
{
    public class SHNCrypto
    {
        public static void CryptoDefault(byte[] Data)
        {
            byte DataLength = (byte)Data.Length;
            for (Int32 Counter = Data.Length - 1; Counter >= 0; Counter--)
            {
                Data[Counter] = (byte)(Data[Counter] ^ DataLength);

                byte DL = (byte)Counter;

                DL = (byte)(DL & 15);
                DL = (byte)(DL + 0x55);
                DL = (byte)(DL ^ ((byte)(((byte)Counter) * 11)));
                DL = (byte)(DL ^ DataLength);
                DL = (byte)(DL ^ 170);

                DataLength = DL;
            }
        }

        public static void CryptoNyx(byte[] Data)
        {
            byte DataLength = (byte)Data.Length;
            for (Int32 Counter = Data.Length - 1; Counter >= 0; Counter--)
            {
                Data[Counter] = (byte)(Data[Counter] ^ DataLength);

                byte DL = (byte)Counter;

                DL = (byte)(DL & 15);
                DL = (byte)(DL ^ 0x55);
                DL = (byte)(DL ^ ((byte)(((byte)Counter) * 11)));
                DL = (byte)(DL ^ DataLength);
                DL = (byte)(DL ^ 170);

                DataLength = DL;
            }
        }

        public static void CryptoExodus(byte[] Data)
        {
            byte DataLength = (byte)Data.Length;
            for (Int32 Counter = Data.Length - 1; Counter >= 0; Counter--)
            {
                data[i] = (byte) (data[i] ^ num);
                
		byte num3 = (byte) i;
                
		num3 = (byte) (num3 & 15);
                num3 = (byte) (num3 + 0x55);
                num3 = (byte) (num3 ^ ((byte) (((byte) i) * 12)));
                num3 = (byte) (num3 ^ num);
                num3 = (byte) (num3 ^ 0xff);
                num = num3;
            }
        }
    }
}