Full-healing group-key distribution in online social networks
by Ya-Nan Liu; Lein Harn; Lei Mao; Zhangliang Xiong
International Journal of Security and Networks (IJSN), Vol. 11, No. 1/2, 2016

Abstract: A new type of group key distribution (GKD), called 'full-healing' group key distribution (F-GKD), is proposed in this paper which helps new-added members to recover the historical session keys. On the basis of the F-GKD scheme, a security approach is proposed for the privacy preservation of online social networks (OSNs). Compared with conventional public-key approaches, our approach has the following advantages: (1) only the polynomial interpolation computation is executed in our approach, which is much lighter than modulo exponentiation or pairing operations, (2) 1-to-many key distribution is more efficient and scalable than 1-to-1 style in public-key approaches, (3) full-healing property speeds up the historical session recovery (HSR), which has the de facto practicability in OSN services. Experiment is also implemented to evaluate the performance of our approach.

Online publication date: Wed, 02-Mar-2016

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