Improving the safety and practicality of authorization technology using LOAF

Authors:
Takumi Akahoshi;Manabu Okamoto;Michio Shimomura;Naohisa Komatsu
Affiliations:
Waseda University, Tokyo, Japan;NTT Information Sharing Platform Laboratories, NTT Corporation, Tokyo, Japan;NTT Information Sharing Platform Laboratories, NTT Corporation, Tokyo, Japan;Waseda University, Tokyo, Japan
Venue:
Proceedings of the 5th ACM workshop on Digital identity management
Year:
2009

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Abstract

Social Networking Services (SNS) such as Facebook in the U.S.A. and mixi in Japan are gathering much attention, and are growing to include huge numbers of users. Now, SNS are starting to require more detailed types of function in addition to direct, "friend" access control, such as "friend-of-a-friend". Accordingly, we have completed a study on implementations of such "friend-of-a-friend" access control efficiently using LOAF (List-Of-All-Friends). We also examined the practicality and safety of a system that provides such access control, even across different systems.