progress on validation

Hashing/Hasher.cs

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+using System;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Hashing
+{
+    class Hasher
+    {
+        static string key = "ProftaakRH-B4";
+        public static string Encrypt(string text)
+        {
+            using (var md5 = new MD5CryptoServiceProvider())
+            {
+                using (var tdes = new TripleDESCryptoServiceProvider())
+                {
+                    tdes.Key = md5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
+                    tdes.Mode = CipherMode.ECB;
+                    tdes.Padding = PaddingMode.PKCS7;
+
+                    using (var transform = tdes.CreateEncryptor())
+                    {
+                        byte[] textBytes = UTF8Encoding.UTF8.GetBytes(text);
+                        byte[] bytes = transform.TransformFinalBlock(textBytes, 0, textBytes.Length);
+                        return Convert.ToBase64String(bytes, 0, bytes.Length);
+                    }
+                }
+            }
+        }
+
+        public static string Decrypt(string cipher)
+        {
+            using (var md5 = new MD5CryptoServiceProvider())
+            {
+                using (var tdes = new TripleDESCryptoServiceProvider())
+                {
+                    tdes.Key = md5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
+                    tdes.Mode = CipherMode.ECB;
+                    tdes.Padding = PaddingMode.PKCS7;
+
+                    using (var transform = tdes.CreateDecryptor())
+                    {
+                        byte[] cipherBytes = Convert.FromBase64String(cipher);
+                        byte[] bytes = transform.TransformFinalBlock(cipherBytes, 0, cipherBytes.Length);
+                        return UTF8Encoding.UTF8.GetString(bytes);
+                    }
+                }
+            }
+        }
+    }
+}