A practical identity-based signature scheme |
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Authors: | Chenghua Li Jianxin Zhu Junjun Wu Xinfang Zhang Qian Deng |
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Institution: | (1) School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China;(2) Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611-6250, USA |
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Abstract: | Many identity-based signature (IBS) schemes solving key escrow were proposed. But the updating of the private keys wasn’t
discussed in these literatures. For the problem of key update, an identity-based key-insulated signature scheme with secure
key-updates has been proposed. But their scheme inherited the key escrow property. In this paper, we propose a new identity-based
strong key-insulated signature scheme without key escrow. It makes the IBS scheme more applicable to the real world. After
analyzing the security and the performance, an application example in E-passport passive authentication scenario is described.
Biography: LI Chenghua(1972–), male, Ph. D. candidate, research direction: cryptography and information security. |
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Keywords: | identity-based signature(IBS) key escrow key update key-insulated signature |
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