New Access-driven Cache Attack Against AES
Chen Cai-sen · Journal of Chinese Computer Systems · 2009
hit and miss behavior will generate timing and power consumption differences,this could be used as a covert information leakage channel for cryptographic systems while visiting the Cache,several Cache attack methods such as Timing-Driven Cache Attack,Trace-Driven Cache Attack were proposed by many cryptographists.A new kind of cache attack,Access-Driven Cache Attack,was described in this paper against AES,this attack scrutinize the Cache behavior with a finer granularity,a spy process was used to gather the accessed Cache line set of the AES encryption process,with the application of non-elimination and elimination methods to analyze these measured information,approximately 20 encryption samples are required to recovered full 128 bits AES key with a high probability of success.