Having summarized the many and sometimes conflicting requirements that an access management system must address, we now consider a number of actual schemes currently in use or under consideration and analyze how well they meet these requirements. It's important to recognize that in solving real-world problems more ...

Authentication strength is a somewhat subjective question. For many of the approaches that we will discuss, strength comes from the details of cryptographic algorithms and key lengths used; but part lies also in overall system design and implementation and in the realities of user behavior, and this can ...

The basic cross-organizational access management problem is exemplified by most licensing agreements for networked information resources today; it also arises in situations where institutions agree to share limited-access resources with other institutions as part of consortia or other resource sharing collaborations. In such an agreement, an institution -- ...