title: How to calculate HMAC SHA on Windows?
body: <p>I need to calculate HMAC SHA in my program on Windows. This program earlier used to run on linux where it used the openssl. Now I need to port it to Windows, but I am not sure if Windows platform SDK provides any means to calculate the HMAC SHA.</p>
  
  <p>I cam across the following link on msdn, but I am not sure - <a href="http://msdn.microsoft.com/en-us/library/aa382453(v=VS.85).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/aa382453(v=VS.85).aspx</a>.</p>
  
  <p>Let me know what is the best way ahead for me. The existing program is in C.</p>