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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Threading.Tasks;
  6. using Konscious.Security.Cryptography;
  7. using System.Security.Cryptography;
  8. using System.Diagnostics;
  9.  
  10. namespace Argon2
  11. {
  12.     class Program
  13.     {
  14.         static void Main(string[] args)
  15.         {
  16.             Run();    
  17.         }
  18.  
  19.         private static byte[] CreateSalt()
  20.         {
  21.             var buffer = new byte[64];
  22.             var rng = new RNGCryptoServiceProvider();
  23.             rng.GetBytes(buffer);
  24.             return buffer;  
  25.         }
  26.  
  27.         private static byte[] HashPassword(string password, byte[] salt)
  28.         {
  29.             var argon2 = new Argon2id(Encoding.UTF8.GetBytes(password));
  30.  
  31.             argon2.Salt = salt;
  32.             argon2.DegreeOfParallelism = 8; // four cores
  33.             argon2.Iterations = 4;
  34.             argon2.MemorySize = 1024 * 1024; //1GB
  35.  
  36.             return argon2.GetBytes(64);
  37.         }
  38.  
  39.         private static bool VerifyHash(string password, byte[] salt, byte[] hash)
  40.         {
  41.             var newHash = HashPassword(password, salt);
  42.             return hash.SequenceEqual(newHash);
  43.         }
  44.  
  45.         public static void Run()
  46.         {
  47.             var password = "SutPikOgDø123!@";
  48.             var stopwatch = Stopwatch.StartNew();
  49.  
  50.             Console.WriteLine($"Creating hash for password '{ password }' .");
  51.  
  52.             var salt = CreateSalt();
  53.             Console.WriteLine($"Using salt '{ Convert.ToBase64String(salt) }' .");
  54.  
  55.             var hash = HashPassword(password, salt);
  56.             Console.WriteLine($"Hash is '{ Convert.ToBase64String(hash) }' .");
  57.  
  58.             stopwatch.Stop();
  59.             Console.WriteLine($" Process took { stopwatch.ElapsedMilliseconds / 1024.0 } s");
  60.  
  61.             stopwatch = Stopwatch.StartNew();
  62.             Console.WriteLine($"Verifying hash....");
  63.  
  64.             var success = VerifyHash(password, salt, hash);
  65.             Console.WriteLine(success ? "Success!" : "Failure!");
  66.  
  67.             stopwatch.Stop();
  68.             Console.WriteLine($"Process took { stopwatch.ElapsedMilliseconds / 1024.0 } s");
  69.  
  70.             Console.ReadLine();
  71.         }
  72.  
  73.     }
  74. }
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