A system enabling an application desiring access to a resource addressable by a URI to produce a response to an authentication challenge to a request to access the URI without including code specific to an authentication system and/or method is provided. The system includes an authentication manager that can pass an authentication challenge to authentication modules and/or objects operable to produce a response to the authentication challenge. The system may also include a cache adapted to store one or more responses to the authentication challenge communicated from the authentication modules, with such cache also being employed to facilitate pre-authenticating test challenges and/or pseudo-challenges.