针对AES第一轮的汉明重代数攻击研究

Research in HW Algebraic Attack on AES First Round

将差分功耗分析的汉明重量模型与传统的代数攻击相结合,实现了针对128位密钥的AES密码算法第一轮的功耗代数攻击.在攻击实验中,改进了汉明重量函数,并证明了利用此函数能够通过进一步计算的相关系数r明显区分出正确密钥字节与错误密钥字节,在最短时间内获得正确的真实的全部密钥字节,对比其他同类研究更具适用性和高效性.

Combine the Hamming-Weight model of DPA with traditional algebraic attack,and achieve the power algebraic attack on the first round of AES-128.In the attack experiment,improve the function of Hamming-Weight,and prove that it can evidently distinguish the right key bytes from the wrong ones by further computed correlation coefficient r,and then acquire all the true key bytes in certain time.It is experimentally proved that this method is more applicable and more effective than other corresponding research.