Group-Centric Secure Information Sharing Hybrid Model Based on Trusted Computing

Abstract

Abstract:

This paper proposed a group-centric secure information sharing(gSIS) hybrid model based on trusted computing. Based on splitkey RSA, a novel hybrid distribution architecture integrating superdistribution and microdistribution was proposed. Without affecting the security of the model, the keys were split in the same way, and the keys owned by the control center were shortened to 32 bits, disregarding the length of RSA. The online computing quantity of the control center was reduced distinctly. Under RSA2048, it was reduced to 1.6% of the original quantity. The prototype test showed that the efficiency of the system was greatly improved. Under RSA2048, the responding time of read access requests was reduced to less than 5% of the time in the original model.

Key words：

Key words: group-centric secure information sharing(g-SIS), trusted computing, split-key RSA, super-distribution, micro-distribution

CLC Number:

TP 309

DENG Rui，CHEN Zuoning. Group-Centric Secure Information Sharing Hybrid Model Based on Trusted Computing

[J]. Journal of Shanghai Jiaotong University, 2014, 48(07): 914-921.

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