using System;

using Microsoft.AspNetCore.Cryptography.KeyDerivation;

using System.Security.Cryptography;

public class Program

{

    public static void Main()

    {

        string password = Console.ReadLine();

        // Generate a 128-bit salt using a sequence of

        // cryptographically strong random bytes.

        byte[] salt = RandomNumberGenerator.GetBytes(128 / 8); // divide by 8 to convert bits to bytes

        Console.WriteLine($"Salt: {Convert.ToBase64String(salt)}");

        // derive a 256-bit subkey (use HMACSHA256 with 100,000 iterations)

        string hashed = Convert.ToBase64String(KeyDerivation.Pbkdf2(

            password: password!,

            salt: salt,

            prf: KeyDerivationPrf.HMACSHA256,

            iterationCount: 100000,

            numBytesRequested: 256 / 8));

​

        Console.WriteLine($"Hashed: {hashed}");

        //var hash = ph.HashPassword("test");

        //var isCurrentHashValid = ph.VerifyHashedPassword(hash, "test");

        //var isOlderHashValid = ph.VerifyHashedPassword("AO7kszlVq1gUsEN6eEwH9WcbppmJlG0qtZpmG65xdklCa89AalTbiA+uXXCOVjzDXw==", "test");

        Console.WriteLine("Hash is " + hashed);

        //Console.WriteLine("isCurrentHashValid " + isCurrentHashValid);

        //Console.WriteLine("isOlderHashValid " + isOlderHashValid);

    }

}