Changing asp net user password, C#

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//Title of this code
//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Security.Cryptography;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
            Console.WriteLine(HashPassword("Pass123"));
        }
        
        public static string HashPassword(string password)
        {
            byte[] salt;
            byte[] buffer2;
            if (password == null)
            {
                throw new ArgumentNullException("password");
            }
            using (Rfc2898DeriveBytes bytes = new Rfc2898DeriveBytes(password, 0x10, 0x3e8))
            {
                salt = bytes.Salt;
                buffer2 = bytes.GetBytes(0x20);
            }
            byte[] dst = new byte[0x31];
            Buffer.BlockCopy(salt, 0, dst, 1, 0x10);
            Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
            return Convert.ToBase64String(dst);
        }
    }
}

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Compilation time: 0.09 sec, absolute running time: 0.09 sec, cpu time: 0.09 sec, average memory usage: 16 Mb, average nr of threads: 4