即时通讯匿名隐通道系统模型与算法研究

项目名称： 即时通讯匿名隐通道系统模型与算法研究

项目编号： No.U1536111

项目类型： 联合基金项目

立项/批准年度： 2016

项目学科： 管理科学

项目作者： 夏亚梅

作者单位： 北京邮电大学

项目金额： 63万元

中文摘要： 只关注内容加密的通信模式确保会话安全的同时导致身份暴露，确保数据安全的同时导致地址暴露，因此还需研究身份、地址的匿名隐蔽问题。而当前主流即时通信（IM，instant messaging）系统作为Internet上的重要交流工具，却具有较低的用户隐私保护机制。本课题从IM系统的隐私保护问题出发，研究隐私增强的IM匿名隐通道系统模型、协议及算法。采用虚拟化技术、规划映射、融合机制、密码学理论、过程建模等方法研究具有安全等级、功能迁移、分层特性的IM匿名隐通道系统模型及协议；采用环境建模、关联分析、概率理论、混杂模式、融合改进等综合理论及方法研究匿名隐通道算法；采用随机、预测、博弈及启发式最优化等理论研究路由选择及优化算法。最后将以上模型、协议及算法应用到实践中开发生成IM匿名隐通道系统。该课题的成功研究将为IM系统的隐私增强起到促进作用，并为匿名隐通道的建立提供新的模型、理论与方法。

中文关键词： 隐私保护；匿名通信；隐通道；模型；算法

英文摘要： Those communication models focused on the encryption of the content will expose the user’s identity when enhancing the conversation’s security, and expose the node’s address when ensuring the data’s security. Therefore, it’s necessary to research the anonymity and concealment of the identity and the address in communications. Nevertheless, current instant messaging (IM) systems, as very important communication tools on the internet, have a low security level in protecting users’ privacy. Aiming at enhancing the privacy protection of the IM system, this research will analyze models, protocols and algorithms of the IM system with enhanced privacy. In this project, we use virtual technology, planning mapping, fusion mechanism, encryption theory, process modeling, etc. to research the anonymous and covert channel system models and protocols of the IM system featured with security level, function migration and hierarchy; use comprehensive theories and methods such as environment modeling, correlation analysis, probability theory, promiscuous mode, fusion/improvement, etc. to research anonymous and covert channel’s algorithms; use such theories as stochastic process, prediction, gaming and heuristic optimality to research routing and optimization algorithms. In the last phase, this project, based on the above models, protocols and algorithms, will develop and generate anonymous and covert channel system of the IM system. The result of the project will contribute to the enhancement of the privacy protection of the IM system, and provide new models, theories and methods to the building of anonymous and covert channels.

英文关键词： Privacy Protection;Anonymous Communication;Covert Channel;Model;Algorithm