Secure and efficient anonymous proxy signature scheme in the random oracle model |
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| Authors: | ZHANG De-dong MA Zhao-feng NIU Xin-xin LI Guo-you |
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| Affiliation: | [1]Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]Institute of Computing Technology, China Academy of Railway Sciences, Beijing 100081, China |
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| Abstract: | Anonymous proxy signature scheme can provide the privacy protection for the proxy signer. Recently, Yu et al. proposed an anonymous proxy signature, which can be viewed as the organic combination of proxy signature and ring signature. However, the efficiency is low. In this paper, we propose an efficient and secure proxy signature with the properties of anonymity and traceability, and it is provably secure in the random oracle model. Compared with Yu et al.'s scheme, the scheme has higher efficiency. |
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| Keywords: | anonymous proxy signature bilinear pairings random oracle model |
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