Access Control with Uncertain Surveillance

• Published in: IEEE/WIC/ACM International Conference on web intelligence pp. 778 - 781
• Main Author: Balbiani, Philippe
• Format: Conference Proceeding
• Language: English
• Published: Washington, DC, USA IEEE Computer Society 19.09.2005; IEEE
• Series: ACM Conferences
• Subjects: Access control; Computer Science; Computer security; Control systems; History; Logic in Computer Science; Permission; Power system modeling; Protection; Safety; Security and privacy; Security and privacy > Security services > Access control; Security and privacy > Systems security > Operating systems security; Social and professional topics > Computing > technology policy > Computer crime; Surveillance; Access control; Surveillance; Permission; Control systems; Safety; Protection; Computer security; Power system modeling
• ISBN: 076952415X; 9780769524153
• DOI: 10.1109/WI.2005.19

We present a variant of the access control matrix model obtained by incorporating uncertain surveillance saying that "if subject s performs illegally action a on object o then the degree of likelihood that it will remain unpunished is equal to x". We then turn to the question whether the expressive power of the matrix model grows when enriching access control with uncertain surveillance. In connection with this enriched model, we also discuss the solvable and unsolvable cases of the major theme of computer security, namely the safety problem for access control matrices.