title: how to test md5 in c# in visual studio
body: <p>just want to ask if anyone know how to test this md5 in visual studio?</p>
  
  <p>this is my md5</p>
  
  <pre><code>   using System;
  using System.Security.Cryptography;
  using System.Text;
  
  class Example
  {
      // Hash an input string and return the hash as
      // a 32 character hexadecimal string.
      static string getMd5Hash(string input)
      {
          // Create a new instance of the MD5CryptoServiceProvider object.
          MD5 md5Hasher = MD5.Create();
  
          // Convert the input string to a byte array and compute the hash.
          byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(input));
  
          // Create a new Stringbuilder to collect the bytes
          // and create a string.
          StringBuilder sBuilder = new StringBuilder();
  
          // Loop through each byte of the hashed data 
          // and format each one as a hexadecimal string.
          for (int i = 0; i &lt; data.Length; i++)
          {
              sBuilder.Append(data[i].ToString("x2"));
          }
  
          // Return the hexadecimal string.
          return sBuilder.ToString();
      }
  
      // Verify a hash against a string.
      static bool verifyMd5Hash(string input, string hash)
      {
          // Hash the input.
          string hashOfInput = getMd5Hash(input);
  
          // Create a StringComparer an compare the hashes.
          StringComparer comparer = StringComparer.OrdinalIgnoreCase;
  
          if (0 == comparer.Compare(hashOfInput, hash))
          {
              return true;
          }
          else
          {
              return false;
          }
      }
  
  
      static void Main()
      {
          string source = "Hello World!";
  
          string hash = getMd5Hash(source);
  
          Console.WriteLine("The MD5 hash of " + source + " is: " + hash + ".");
  
          Console.WriteLine("Verifying the hash...");
  
          if (verifyMd5Hash(source, hash))
          {
              Console.WriteLine("The hashes are the same.");
          }
          else
          {
              Console.WriteLine("The hashes are not same.");
          }
  
      }
  }
  // This code example produces the following output:
  //
  // The MD5 hash of Hello World! is: ed076287532e86365e841e92bfc50d8c.
  // Verifying the hash...
  // The hashes are the same.
  </code></pre>