54 citations · 119 across the 24 of their papers we have counts for
4 papers · 1 filter
Cryptographic Enforcement of Information Flow Policies without Public Information
Jason Crampton, Naomi Farley, Gregory Gutin +2
Cryptographic access control has been studied for over 30 years and is now a mature research topic. When symmetric cryptographic primitives are used, each protected resource is enc…
Caching and Auditing in the RPPM Model
Jason Crampton, James Sellwood
Crampton and Sellwood recently introduced a variant of relationship-based access control based on the concepts of relationships, paths and principal matching, to which we will refe…
Publicly Verifiable Outsourced Computation with a Key Distribution Centre
James Alderman, Carlos Cid, Jason Crampton +1
The combination of software-as-a-service and the increasing use of mobile devices gives rise to a considerable difference in computational power between servers and clients. Thus,…
Path Conditions and Principal Matching: A New Approach to Access Control
Jason Crampton, James Sellwood
Traditional authorization policies are user-centric, in the sense that authorization is defined, ultimately, in terms of user identities. We believe that this user-centric approach…