基于PRESENT算法的智能卡芯片存储加密  

Storage encryption of a smart card chip based on the PRESENT algorithm

作　　者：王亚楠[1] 杨永生[1] 毕海英[1] 高金萍[1] 

机构地区：[1]中国信息安全测评中心,北京100085

出　　处：《清华大学学报（自然科学版）》2013年第12期1708-1712,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(61202493)

摘　　要：该文将轻量级密码算法PRESENT用于智能卡芯片存储加密中,用于保证卡内代码及数据的安全。首先指出总线置乱方法存在选择明文攻击隐患,而异或加密方法在Flash擦除操作时会导致密钥泄露,进而指出引入PRESENT算法的重要性。同时,该文给出PRESENT算法在智能卡芯片中的具体实现方法,包括电路设计、密钥分散存储和故障攻击抵御措施。与传统方法相比,该文所提方法即保证了智能卡芯片运行的效率,又提高了存储加密的安全性。The lightweight block cipher PRESENT algorithm is applied in the storage encryption algorithm of smart cards to provide security for the code and data in the card. This paper shows that the bus scrambling technique is susceptible to chosen-plaintext attacks, while the Exclusive OR encryption technique can be broken during the erasing of the Flash. The paper then describes implementation of storage encryption based on the PRESENT algorithm including the circuit design, the distributed storage of the key and countermeasures for fault attacks. The method ensures the security and efficiency of smart cards that is not possible withprevious methods.

关 键 词：智能卡 存储器 加密 PRESENT算法 异或 

分 类 号：TN918[电子电信—通信与信息系统]