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Indexed by:期刊论文

Date of Publication:2011-09-01

Journal:International Journal of Digital Content Technology and its Applications

Included Journals:EI、Scopus

Volume:5

Issue:9

Page Number:281-289

ISSN No.:19759339

Abstract:A multi-secret sharing scheme allows several secrets to be shared among a group people, which reduces the number of interactions between the dealer and the participants. In this paper, we generalize the ideal of multi-secret sharing scheme into attribute based encryption and present two constructions of dynamic multi-attribute based encryption schemes. In our system, let k be the maximum of messages encrypted of the system one time, k'(1  k'  k) messages can be encrypted during one process. Our schemes can be applied in the environment that several messages need to be encrypted simultaneously or that a large message has to be divided into smaller pieces to encryption. In additional, we also propose complexity assumption and security model for our schemes and prove its security.