Byte[] Fills -TizzyT

        public static byte[] RandomFill(this byte[] arr)
        {
            Random rnd = new Random();
            rnd.NextBytes(arr);
            return arr;
        }

        public static byte[] CryptoRandomFill(this byte[] arr)
        {
            RNGCryptoServiceProvider crng = new RNGCryptoServiceProvider();
            crng.GetBytes(arr);
            return arr;
        }

        public static byte[] UniqueRandomFill(this byte[] arr)
        {
            if (arr.Length > 256) throw new Exception("Can only generate unique byte array of length 256 or less");
            byte[] random = new byte[arr.Length].CryptoRandomFill();
            for (int i = 0; i < random.Length; i++) UniqueArray.SwapArrayElements(i, random[i]);
            Array.Copy(UniqueArray, arr, arr.Length);
            return arr;
        }

        public static T[] SwapArrayElements<T>(this T[] arr, int index1, int index2)
        {
            T old = arr[index1];
            arr[index1] = arr[index2];
            arr[index2] = old;
            return arr;
        }

        private static readonly byte[] UniqueArray = new byte[]
        {
            0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
            10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
            20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
            30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
            40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
            50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
            60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
            70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
            80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
            90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
            100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
            110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
            120, 121, 122, 123, 124, 125, 126, 127, 128, 129,
            130, 131, 132, 133, 134, 135, 136, 137, 138, 139,
            140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
            150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
            160, 161, 162, 163, 164, 165, 166, 167, 168, 169,
            170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
            180, 181, 182, 183, 184, 185, 186, 187, 188, 189,
            190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
            200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
            210, 211, 212, 213, 214, 215, 216, 217, 218, 219,
            220, 221, 222, 223, 224, 225, 226, 227, 228, 229,
            230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
            240, 241, 242, 243, 244, 245, 246, 247, 248, 249,
            250, 251, 252, 253, 254, 255
        };