title: How can I calculate the checksum of a IFormFile object
body: <p>I have a file object in the form of <code>IFormFile</code>. I need to calculate the checksum of this file. How can I do this.</p>
  
  <pre><code>public string FindChecksum (IFormFile file){
  
    // How to calculate the checkSum
  
    return "THE CHECKSUM";
  }
  </code></pre>