Cache计时攻击已成为密码分析学的一个热门研究领域，智能移动终端的日益普及对安全性提出了新的要求，从而使移动终端的旁路安全性分析研究显得尤为迫切。本项目对移动智能终端的Cache计时攻击展开研究，首先从Cache结构、策略和运行系统内核等方面分析了现有基于x86架构的攻击模型对ARM处理器存在的不适用性；以适用于移动终端的典型密码算法为分析对象，依据时序驱动、访问驱动和踪迹驱动等Cache泄露信息采集方式，建立Cache攻击模型；然后依据攻击模型和分析对象，分析Cache信息与密钥的相关性，借鉴模板分析和碰撞分析等分析方法，给出密钥分析算法；最后在Android移动终端上搭建实验平台，实现精确计时、Cache信息采集与离线分析等关键技术，以验证攻击模型和算法，并进行安全性评估。本课题旨在满足移动智能终端旁路安全性分析的迫切需求，为ARM架构下Cache攻击技术研究奠定理论和技术基础。

Cache timing attack has become a hot research area of cryptanalysis, and the growing popularity of smart mobile device require higher security, so that the side-channel security analysis of the mobile device is particularly urgent. ..In this project, we study the Cache timing attack on smart mobile device. Firstly, we point out that the attack model for the x86 architecture has some inapplicability for the ARM processor, by analyzing the Cache structure, strategy and the operating system kernel and other aspects in processor. Based on three Cache information collection methods, including timing-driven, access-drivenand trace-driven attack models, we build the reasonable Cache timing attack model against the cryptographic algorithms running on the mobile device; And then according to the attack model and analyzed target, learn from the analysis methods of the template analysis and collision analysis, we propose the key analysis algorithm by analyzing the correlation between the Cache timing information and key information; Finally, we set up the attack experiment platform on the Android mobile device, and implement the key technologies, including precision timing, Cache timing information collection and offline analysis on mobile device, to verify the proposed attack models and analysis algorithms, and safety assessment. This project aims to meet the urgent needs of security analysis for smart mobile device, providing a new ideas and theoretical basis for the study of the Cache attack techniques under the ARM architecture.