针对侧信道分析的智能密码系统研究

项目名称： 针对侧信道分析的智能密码系统研究

项目编号： No.61472292

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 唐明

作者单位： 武汉大学

项目金额： 82万元

中文摘要： 侧信道分析对密码芯片及系统已构成实际威胁，侧信道对抗方法成为研究热点，其中安全性与轻量化兼顾问题是侧信道对抗方法研究的关键问题。 本课题针对这一关键问题，提出环境自适应的适度防护设计思想；结合侧信道分析方法对平台的依赖性，提出动态分析环境概念；为适应动态分析环境，首次提出智能密码系统的设计方法，模拟自然界生物对环境的适应性，自动化设计完成兼顾安全性与轻量化的侧信道防护方法。 基于课题组在侧信道、演化密码、密码芯片等多个方面的研究积累，本课题重点解决智能密码系统中对动态环境的感知、对现有对抗方法与分析环境的综合评价、防护方法自动化设计、以及智能密码系统集成等多方面关键问题，实现智能密码系统对侧信道分析环境的动态自适应设计。 智能性是系统设计与发展的重要趋势之一，本课题以侧信道防护为智能密码系统研究切入点，其研究成果可推动密码防护方法在面临未知、复杂攻击环境时，具有更强的适应能力和生命周期。

中文关键词： 分组密码；密码算法

英文摘要： SCA(Side Channel Analysis) has become the real threaten method against the cipher chips and the system. The research of the countermeasures on SCAs is one of the hot topic in SCAs, and the trade-off of security and lightweight is the key problem. Our project proposes the idea of enviroment-fit and extent-fit to deaign countermeasure which compromises secuerity and lightweight. We propose the concept of the dynamic analysis environment considering the dependency of SCAs on the platform. Furthemore, we firstly propose the concept and method of the intelligent cryptographic system to simulate the adaptation of biological to nature environment, thereby to automatically design the SCA countermeasures both with security and lightweight. Based on the our existing researches of SCAs, evolutionary cipher and cipher chips, our project will solve the key science and technological problems in the dynamic environment, combined evaluation of the countermeasures and the environment, the autodesign of the SCA countermeasure and the integration of the intelligent cipher system. Finally we will finish the self-adapated to the environement design of the intelligent cipher system. For intelligence is one of the most important tendency of the system design, we develop the intelligent cipher system from the point of the SCAs, and the result of the system could push the cryptographic countermeasures to be stronger and have longer lifecycle when it faces the unkonwn analyzing environment.

英文关键词： Block Cipher;Cryptographic Algorithm