Security policy satisfiability and failure resilience in workflows

Abstract

Security policy satisfiability and high failure resilience (i.e. survivability) are desirable properties of every system. Security issues and failure resilience are usually treated in stand alone mode and not in synergy. In this paper, we bridge this gap for workflows. We propose techniques which ensure that user-task assignment is both secure and failure resilient and present frameworks that meet different criteria of security policy, security constraints, and failure resilience.