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首页> 外文会议>International Conference on Networking and Mobile Computing; 20050802-04; Zhangjiajie(CN) >Efficient Identity Based Proxy-Signcryption Schemes with Forward Security and Public Verifiability
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Efficient Identity Based Proxy-Signcryption Schemes with Forward Security and Public Verifiability

机译：具有前向安全性和公共可验证性的基于身份的高效代理签名方案

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摘要

Li and Chen proposed an identity based proxy-signcryption scheme which is based on the Libert and Quisquater's identity based signcryption scheme recently. However, we demonstrate that their scheme does not satisfy the strong unforgeability and forward security in the strict sense. Furthermore, establishing a secure channel has much influence on their scheme. Based on the new ID-based signcryption scheme proposed by Chow et al, an efficient forward secure and public verifiable identity based proxy-signcryption scheme without the secure channel is proposed. The proposed scheme overcomes the weakness of Li-Chen scheme. The security and performance of the scheme are also analyzed.
机译：Li和Chen最近提出了一种基于身份的代理签密方案，该方案基于Libert和Quisquater的基于身份的签密方案。但是，从严格的意义上讲，我们证明了它们的方案不能满足强烈的不可伪造性和前向安全性。此外，建立安全通道对其方案有很大影响。基于Chow等人提出的新的基于ID的签密方案，提出了一种无需安全通道的有效前向安全和可公开验证的基于身份的代理签密方案。该方案克服了李陈方案的缺点。还分析了该方案的安全性和性能。

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