Hyperz

using System;

namespace Hyperz.XorCrypt
{
    public sealed class Crypt
    {
        public static unsafe void Xor8(byte[] data, byte key)
        {
            fixed (byte* pData = data)
            {
                for (int i = 0; i < data.Length; i++) *(pData + i) ^= key;
            }
        }

        public static unsafe void Xor32(byte[] data, uint key)
        {
            int i, k;
            byte[] keys = BitConverter.GetBytes(key);

            fixed (byte* pData = data)
            {
                for (k = 0; k < keys.Length; k++)
                    for (i = 0; i < data.Length; i++)
                        *(pData + i) ^= keys[k];
            }
        }

        public static unsafe void Xor64(byte[] data, ulong key)
        {
            int i, k;
            byte[] keys = BitConverter.GetBytes(key);

            fixed (byte* pData = data)
            {
                for (k = 0; k < keys.Length; k++)
                    for (i = 0; i < data.Length; i++)
                        *(pData + i) ^= keys[k];
            }
        }
    }
}