| Efficient Identity Based Signcryption Scheme with Public Verifiability and Forward Security |
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| 作者姓名： | FEIFei-yu CHENWen CHENKe-fei MAChang-she |
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| 作者单位： | DepartmentofComputerScienceandEngineering,ShanghaiJiaotongUniversity,Shanghai200030,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFoundationofChina(60273049,90104005) |
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| 摘 要： | In this paper, we point out that Libert and Quisquater‘s signeryption scheme cannot provide public verifiability. Then we present a new identity based signcryption scheme using quadratic residue and pairings over elliptic curves. It combines the functionalities of both public verifiability and forward security at the same time. Under the Bilinear Diffie-Hellman and quadratic residue assumption, we describe the new scheme that is more secure and can be some what more efficient than Libert and Quisquater‘s one.
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| 关 键 词： | 密码符号 公众检验性 信息安全 计算机 密码系统 |
| 收稿时间： | 15 May 2004 |
Efficient identity based signcryption scheme with public verifiability and forward security |
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| FEIFei-yu CHENWen CHENKe-fei MAChang-she.Efficient Identity Based Signcryption Scheme with Public Verifiability and Forward Security[J].Wuhan University Journal of Natural Sciences,2005,10(1):248-250. |
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| Authors: | Lei Fei-yu Chen Wen Chen Ke-fei Ma Chang-she |
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| Institution: | (1) Department of Computer Science and Engineering, Shanghai Jiaotong University, 200030 Shanghai, China |
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| Abstract: | In this paper, we point out that Libert and Quisquater's signcryption scheme cannot provide public verifiability. Then we
present a new identity based signcryption scheme using quadratic residue and pairings over elliptic curves. It combines the
functionalities of both public verifiability and forward security at the same time. Under the Bilinear Diffie-Hellman and
quadratic residue assumption, we describe the new scheme that is more secure and can be some-what more efficient than Libert
and Quisquater's one.
Foundation item: Supported by the National Natural Science Foundation of China (60273049, 90104005).
Biography: LEI Fei-yu (1978-), male, Ph. D candidate, research direction: cryptography. |
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| Keywords: | signcryption identity based public verifiability forward security |
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