using System;
using System.Security.Cryptography;
public class Test
{
public static void Main()
{
Console.WriteLine(Convert.ToBase64String((new Rfc2898DeriveBytes("Rh0PiCAD9+hvZq2jtsSjcwXunPc=", System.Convert.FromBase64String("bc+TAbx9J9hOFjMQIZV/OA=="))).GetBytes(20)));
}
}
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