added salt to password, it's edible now

csharp/app/Backend/Utils/Crypto.cs

@@ -0,0 +1,20 @@
+using System.Security.Cryptography;
+
+namespace Backend.Utils;
+
+public class Crypto
+{
+    public String ComputeHash(Byte[] bytesToHash, Byte[] salt)
+    {
+        var byteResult = new Rfc2898DeriveBytes(bytesToHash, salt, 10000);
+        return Convert.ToBase64String(byteResult.GetBytes(24));
+    }
+    
+    public string GenerateSalt()
+    {
+        var bytes = new byte[128 / 8];
+        var rng = new RNGCryptoServiceProvider();
+        rng.GetBytes(bytes);
+        return Convert.ToBase64String(bytes);
+    }
+}