title: EVP_get_digestbyname : what is this ..?
body: <p>I need to use this function </p>
  
  <pre><code>EVP_get_digestbyname(OBJ_nid2sn(i));
  </code></pre>
  
  <p>Whenever I call this function it returns NULL only .. how to fix this problem?</p>
  
  <p>My value for i is 65 (RSA-SHA1).</p>
  
  <p>Thanks</p>