A Privacy Architecture for Context - Aware Enterprise Social Networks

Context information is used to derive user profiles and social networks in an enterprise system called Instant Knowledge. This system requires privacy as well as conventional information security requirements. The privacy requirements include anonymity, unlinkability, unobservability and pseudonymity; these are designed to provide privacy by default to users of an Instant Knowledge service. A privacy architecture is proposed that focuses on identity management and Instant Knowledge communications. The architecture provides granular control of authorisation decisions, and is designed for quick deployment within an enterprise. Moreover, the architecture minimises user effort, which is one of the main design goals of Instant Knowledge.