PeerShare: A System Secure Distribution of Sensitive Data among Social Contacts

We present the design and implementation of the PeerShare , a system that can be used by applications to securely distribute sensitive data to social contacts of a user. PeerShare incorporates a generic framework that allows different applications to distribute data with authenticity and confidentiality guarantees to authorized sets of recipients, specified in terms of social relationships. By using existing interfaces in popular social networks for user authentication and social graph information, PeerShare is designed to be easy to use for both end users as well as developers of applications. We have used PeerShare already in three different applications and plan to make it available for developers.

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