RelationGram: Tie-Strength Visualization for User-Controlled Online Identity Authentication
Authors: Tiffany Hyun-Jin Kim, Akira Yamada, Virgil Gligor, Jason Hong, Adrian Perrig

Date: April 2013
Publication: Proceedings of the 17th International Conference on Financial Cryptography and Data Security 2013 / Lecture Notes in Computer Science, Volume 7859
Page(s): 69 - 77
Publisher: Springer
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Abstract or Summary:
We consider the specific problem of how users can securely authenticate online identities (e.g., associate a Facebook ID with its owner). Based on prior social science research demonstrating that the social tie strength is a useful indicator of trust in many real-world relationships, we explore how tie strength can be visualized using well-defined and measurable parameters. We then apply the visualization in the context of online friend invitations and propose a protocol for secure online identity authentication. We also present an implementation on a popular online social network (i.e., Facebook). We find that tie strength visualization is a useful primitive for online identity authentication.

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