[Zope] which auth package to start with

I need to write an external python script to plug into our authentication system. Its a cookie based system. Basically, I open a socket to an auth server, send a cookie to it, if the cookie as a valid one, I get an okay back. If not, I need to send it to an auth page. The auth page is on a different machine. It prompts the user for credentials (id/password) over an https connection. It then checks kerberos for that user and if okay, sends a cookie back to the browser. In short, I don't need to create a cookie, just grab one, send it over socket, and come back with an okay or not okay. Any recommendations on which authenticaion package to start with? cookie crumbler? -- David Bear College of Public Programs/ASU Mail Code 0803