title: Example of Mod 256 checksum in C#
body: <p>I can't seem to find a lot of information on this checksum algorithm and nothing about in relating to C#, I have a scenerio as follows;</p>
  
  <p>I have a string of data e.g.:</p>
  
  <pre><code>string input = "hello world"
  </code></pre>
  
  <p>and I would like to create a checksum, that I can later verify it with the same string</p>