401 issue - not sure if Authorization header is right



I am attempting to connect in general to the Twitter API and I am passing the required authentication parameters in the Authorization header. However, I am consisting getting a 401 error…meaning, I am doing something wrong, etc in the header. I have followed all of the steps in the Authorization setup documents…however, I am sure that I messed something up somewhere.

Is there a tool on twitter that I can use to test the authentication header for issues? If so, where is it? If not, how can I troubleshoot this problem?