新签密算法的设计、分析和应用研究

项目名称： 新签密算法的设计、分析和应用研究

项目编号： No.60873233

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 张串绒

作者单位： 中国人民解放军空军工程大学

项目金额： 31万元

中文摘要： 签密是将加密算法和数字签名安全高效结合，同时实现机密性和可认证性的一种新密码方法，在提高无线网络通信安全性和实现效率方面具有重要意义。本项目研究了新签密算法的设计、分析和应用，设计出了基于混合加密、基于身份密码、多功能的、具有附加性质的高效安全新签密算法；借助算法组成结构分析方法、启发式方法和可证明安全方法对新签密算法的安全性进行了分析，给出了其安全性结论；研究了新签密算法在无线通信网络安全中的应用，设计出了一些基于签密的移动自组网络密钥管理安全协议，如密钥协商协议、密钥分发协议和密钥更新协议等。所取得的以上研究成果，一方面丰富了安全、高效、实用性强的签密算法设计和分析的理论，另一方面，所设计出的基于签密的网络安全协议，为解决移动自组网络等新型无线通信网络中的某些关键安全问题提供了技术支持。因此，本项目的研究成果具有重要的理论价值和应用价值。

中文关键词： 签密；混合加密；基于身份密码；可证明安全；移动自组网安全协议

英文摘要： Signcryption is a new cryptographic technique, and it fulfillls confidentiality and authenticity simultaneously by integrating encryption and signature algorithms. It is of great significance for improving the security and efficiency of wireless communication networks. This program studied the design, analysis and applications of new signcryption algorithms. It focused on the design of new signcryption algorithms with efficiency and security, and has had some signcryption algorithms, such as hybrid encryption based algorithms, and identity-based algorithms, and multi-functions algorithms, and algorithms with additional properties. Then, by configuration analysis, or heuristic method, or provable security techniques to the new signcryption algorithms, the security of these algorithms is definituded. Finally, the applications of new signcryption algorithms in wireless networks are studied. Some key management protocols of ad hoc networks based on the new signcryption algorithms were designed, such as key agreement protocols, key distribution protocols, key update protocols, and etc. The above results of this research, in the one hand, rich the design and analysis theory of signcryption algorithms those are more secure, efficient and practical, and in the other hand,the proposed network secure protocols provides technical solutions for solving some key security problems in new wireless moblie communication networks,typically in ad hoc networks. So, the innovation rersults of this program are valuable in both theory and application.

英文关键词： Signcryption; hybrid encryption; identity-based cryptography; provable security; secure protocols of ad hoc networks.