A Power Analysis Attack Against RSA-CRT
Zhang Leia · Communications technology · 2011
As a fast RSA implementation,RSA-CRT is widely applied to computing-limited devices,such as smart cards.This paper describes a side channel attack against RSA-CRT implementation.By properly choosing input data,the power consumption of the intermediate value after the modular reduction is analyzed.This attack first determines the size of one of the primes,then based on it,takes another DPA attack and gets the byte-by-byte prime.The simulation experiment shows that this attack is effective,and relative to MRED,could reduce the number of needed power traces and raise the attack efficiency.