salesforce api sha 256 connection failure

I've been successfully using Salesforce's api till they made the switch to SHA 256 algorithms about 2 weeks ago (HTTPS Security Certificate Change from SHA-1 to SHA-256 hash algorithms). I know that coldfusion 8 is capable of supporting sha 245 hashing, but I've had no luck connecting to salesforce objects. Where exactly do i need to implement the SHA 256 encoding? Here's my CF code that is currrently functioning on a server where the sha 256 hasn't been implemented yet:

  <cfhttpparam type="header" name="Authorization" value="Bearer XXXXXXX">

   <cfhttpparam type="header" name="X-PrettyPrint" value="1">

   </cfhttp>

This works correctly, so I assumed I just need to do the hashing on either the url or the authorization value. l tried both, then one or the other, but still no luck. Any advice is welcom.