项目名称: 新型分组密码和杂凑密码算法及其安全性分析
项目编号: No.61272476
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 自动化技术、计算机技术
项目作者: 吴文玲
作者单位: 中国科学院软件研究所
项目金额: 81万元
中文摘要: 分组密码和杂凑密码算法是构建安全信息系统的核心基础,其创新与深化研究可为设计、分析和应用密码算法提供重要的理论依据和科学方法。本项目围绕分组密码和杂凑密码算法的分析与设计展开研究,力争取得一批具有国际影响力的原创性成果。挖掘不同分析方法之间的联系与相互影响,探索新的安全性分析方法,发展分组密码和杂凑密码算法的安全性分析理论;研究新型密码结构和密码指标,构造折衷最优的密码组件,为新型分组密码和杂凑密码算法的设计提供支持;兼顾理论安全和实际应用,探讨各种安全模型的内在关系,提炼更合理的安全模型,完善可证明安全理论;研究分组密码、杂凑函数以及消息鉴别码算法设计方法的相互融合;设计系列具有自主知识产权、技术先进的分组密码和杂凑密码算法,参与国家商用密码算法标准的遴选;提取各类分组密码分析方法的特征信息,建立密码分析模型,研制分组密码自动分析工具,为分组密码算法的分析、设计和评估提供重要的支撑环境。
中文关键词: 分组密码;杂凑函数;消息鉴别码;安全性分析;性能
英文摘要: Block cipher and cryptographical hash function are the core foundation for building secure information systems, whose innovations and improvements would provide important theoretical guidelines and scientific methods for the design, analysis and application of cryptographic algorithms. In this program, we focus on the analysis and design of block cipher and cryptographical hash function, trying to achieve a series of original results with international influence. The detailed research would be performed in six aspects. Firstly, we will investigate the relationships among different analysis methods, explore new methods and develop the analysis theory for block cipher and cryptographical hash function; secondly, we will design new cipher structures and security measurements, construct tradeoff-optimal cryptographic components, providing support for designing new block ciphers and cryptographical hash functions; thirdly, we will take both theoretical security and actual application into account, investigate relationships among different security models to extract more reasonable models, improving provable security theory; fourthly, we will explore the possibility of merging the design methods for block cipher, hash function and message authentication code; fifthly, we will design a series of technologically advance
英文关键词: Block cipher;Hash function;Message authentication code;Security analysis;Performance