针对 FPGA实现的 DES算法旁路碰撞攻击研究

摘要

旁路碰撞攻击关键在于碰撞检测过程。通过对旁路碰撞攻击技术的研究，总结Feistel结构密码算法的碰撞模型，改进碰撞检测过程，实现基于最小一乘法的碰撞检测技术。对基于FPGA实现的DES密码算法进行旁路碰撞攻击。利用仿真功耗采集平台和实测功耗采集平台，验证了基于最小一乘法碰撞检测技术的有效性。%The key of side channel collision attack lies in collision detection process.Based on the research of side channel collision attack, we summarise the collision model of Feistel structure cipher algorithm.Through the improvement of collision detection process, we realisethe least absolute deviations-based collision detection technology.Then the side channel collision attack is executed against the Data Encryption Standard ( DES) cryptographic algorithm implemented on the basis of field-programmable gate array ( FPGA) .By the use of power acquisition platform, the validity of least absolute deviations-based collision detection technology is verified.