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Client-Side Profile Storage: a means to put the user in control

Riche, Stephanie; Brebner, Gavin; Gittler, Mickey

HPL-2001-291

Keyword(s): personalization; profile; profiling; personal storage; privacy

Abstract: As internet users, we provide personal information to a growing number of service providers with little or no control over its usage, and no means to properly track subsequent access of this information. Some companies have recently made announcements proposing to handle our personal information centrally, offering the possibility of a unified repository, but raising additional trust and privacy concerns. We propose an alternative to this trend by storing personal information on client devices, increasing the possibility of putting the user in control of his or her personal information. A user can have multiple heterogeneous devices, so this generates a need for the distribution of profile data. Profile management capabilities are required that ensure consistency of replicated data, data accessibility with low latency, security and privacy. In our scheme we have chosen an approach based on a coherency protocol well adapted to handle data migration, and are extending this protocol to incorporate trust-related features.

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