Access-driven cache attack resistant and fast AES implementation
Yadong Wan, Xinqiang Luo, Yue Qi, Jie He, Qin Wang · International Journal of Embedded Systems · 2018
The traditional advanced encryption standard (AES) implementations based on four lookup tables (4-T) of 1 KB size, have high encryption performance, whereas face access-driven cache attack at the same time. In this paper, we present an AES implementation based on one lookup table of 512 B with optimised structure, named 1-T, to improve the access-driven cache attack resistant ability. Furthermore, we optimise the implementation of round function of 1-T to eliminate the speed influence from the shrunken lookup table. The experiment result shows that attack resistant ability of 1-T is much higher than 4-T's under the same cache setting; and encryption time of 1-T is increased by 43.5% and 106.3% than 4-T's on the ARM and the ×86 platform respectively, but storage overhead is only 28% of 4-T's.