Authenticating mobile computing users can require a significant amount of processing and communications resources— particularly when protocols based on public key encryption are...
Under current U.S. law and common understanding, the fundamental right granted by copyright is the right of reproduction – of making copies. Indeed, the very word “copyright”...
It is well-known that CA plays the central role in PKI. In this paper we introduce a new component into PKI, DA (decryption authority), which decrypts important and sensitive mess...
Domain Name System (DNS) is the system for the mapping between easily memorizable host names and their IP addresses. Due to its criticality, security extensions to DNS have been p...
Abstract Role-based access control RBAC has recently received a lot of attention due to its exibility, expressive power and simplicity in administration. In RBAC permissions are as...