| 一种可证安全的无证书环签密方案 |
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| 引用本文： | 祁正华,杨庚,任勋益.一种可证安全的无证书环签密方案[J].中国通信学报,2011,8(3):99-106. |
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| 作者姓名： | 祁正华 杨庚 任勋益 |
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| 摘 要： |
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| 收稿时间： | 2011-07-18; |
Provably Secure Certificateless Ring Signcryption Scheme |
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| Qi Zhenghua,Yang Geng,Ren Xunyi.Provably Secure Certificateless Ring Signcryption Scheme[J].China communications magazine,2011,8(3):99-106. |
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| Authors: | Qi Zhenghua Yang Geng Ren Xunyi |
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| Institution: | College of Computer Science & Technology,Nanjing Unviersity of Posts and Telecommunications,Nanjing 210003,P.R.China |
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| Abstract: | Ring signcryption enables a user to send a message confidentially and authentically to a specific receiver in an anonymous way. One of the main reasons for the slow adoption of identity based cryptography is the inherent key escrow problem. In this paper a new certificateless ring signcryption scheme from pairings is presented. It is escrow free in that no KGC is able to decrypt ciphertexts itself. We then formally prove the security of the new scheme in the random oracle model IND CCA2 and EUF CMA. |
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| Keywords: | ring signcryption certificateless cryptography bilinear pairing |
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