title: Check quality of random numbers
body: <p>I wrote a code which generates random numbers based on a private cryptography project ( for educational purposes ). Now i want to check how the quality of my random number generator is.</p>
  
  <p>Tests i already did:</p>
  
  <ul>
  <li>Count all numbers together and check the distance to zero ( Numbers can be negative and positive )</li>
  <li>Compare the random numbers with the <code>System.Random</code> class ( The duplicated numbers are at the half of the .NET's random generator )</li>
  </ul>
  
  <p>What can i further do to check how good the algorithm is working?</p>