Author:
Tan Chaoyue,Chen Yuling,Wu Yongtang,He Xiaochuan,Li Tao
Abstract
AbstractMulti-cloud computing provides services by used different clouds simultaneously multi-signature can be used as the interactive technology between multi-cloud and users. However, the limited resources of some terminal devices make multi-signature, which based on bilinear map, is not suitable for multi-cloud computing environment. In addition, the signers are disclosure in multi-signature so there is the risk of attack. To solve this issues, this paper proposes a certificateless designated verifier multi-signature scheme based on multivariable public key cryptography (MPKC). Firstly, the formalized definition and security model of the proposed scheme are given. Secondly, it is proved that the proposed scheme is against adaptive chosen-message attacks. Finally, the analysis shows that the proposed scheme is more efficiency and suitable for multi-cloud. Moreover, the proposed scheme can hidding signature source to achieve privacy protection.
Funder
National Natural Science Foundation of China under Grant
Top Technology Talent Project from Guizhou Education Department
Foundation of Guangxi Key Laboratory of Cryptography and Information Security
Publisher
Springer Science and Business Media LLC
Subject
Computer Networks and Communications,Software
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