public static T[] Shuffle <T>(this T[] source, int index, int length)
{
T[] sorted = new T[source.Length];
byte[] randoms = new byte[sorted.Length];
source.CopyTo(sorted, 0);
RandomImpl.NextBytes(randoms);
Array.Sort(randoms, sorted, index, length);
return(sorted);
}
public static void RandomBytes(byte[] buffer)
{
RandomImpl.NextBytes(buffer);
}