The present invention pertains to a system for managing network access to resources that allows a first entity to impersonate a second entity. In one embodiment, the first entity can impersonate the second entity without knowing the second entity's password and/or without altering anything in the entity's...http://www.google.com/patents/US20030105862?utm_source=gb-gplus-sharePatent US20030105862 - Impersonation in an access system