In many important applications, a collection of mutually distrustful parties must perform private computation over multisets. Each party’s input to the function is his private i...
This paper defines a framework in which one can formalize a variety of authorization and policy issues that arise in access control of shared computing resources. Instantiations ...
Stefan Schwoon, Somesh Jha, Thomas W. Reps, Stuart...
Pseudonym systems allow users to interact with multiple organizations anonymously by using pseudonyms. Such schemes are of significant practical relevance because it is the best m...
Trust negotiation between two subjects require each one proving its properties to the other. Each subject specifies disclosure policies stating the types of credentials and attrib...
Indrakshi Ray, Elisa Bertino, Anna Cinzia Squiccia...
In distributed systems users need the ability to share sensitive content with multiple other recipients based on their ability to satisfy arbitrary policies. One such system is el...