| Improvement on threshold proxy signcryption scheme |
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| 引用本文： | TAN Zuo-wen. Improvement on threshold proxy signcryption scheme[J]. 通讯和计算机, 2007, 4(5): 40-46 |
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| 作者姓名： | TAN Zuo-wen |
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| 作者单位： | [1]Department of Computer Science, Jiangxi University of Finance ＆ Economics, Nanchang 330013, China [2]Key Lab of Mathematics Mechanization, AMSS, Chinese Academy of Science, Beijing 100080, China |
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| 基金项目： | Acknowledgements： This work is supported by the National Key Basic Research Project ＂973＂ of China （No. 2004CB318000） and the Science Research Fund of Jiangxi Province Education Department （No. 273）. |
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| 摘 要： | Signcryption is a public key or asymmetric cryptographic method that provides simultaneously both message confidentiality and integrity at a lower computational and communication cost. This paper presents a （t, n） threshold proxy signcryption scheme in which no less than t proxy agents in the proxy group can produce the signcryption cryptogram. combines the functionality of threshold proxy signing and encryption. The proposed scheme combines the functionality of both threshold proxy signing and encryption, and provides fair protection for the sender and the proxy agents. This scheme is secure against attack of public key substitution. It also satisfies security properties such as confidentiality and authenticity.
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| 关 键 词： | 阈代理签名 信息传输 保密通信 密码学 公匙 |
Improvement on threshold proxy signcryption scheme |
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| Abstract: | |
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| Keywords: | threshold proxy signature signcryption fair protection message transmission |
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