侧信道原子化的严格自随机化模幂算法

Side-Channel Atomic Strict Self-Randomized Modular Exponentiation Algorithm

研究了RSA密码算法的差分功耗分析防御方法.通过对自随机化模幂算法的分析,提出将BBS随机数发生器和侧信道原子化技术应用于改进的算法中,得到侧信道原子化的严格自随机化模幂算法.仿真实验结果证明,该方法可以有效防御差分功耗分析攻击.

In this paper, the defense mechanism of differential power analysis attacks on the RSA cipher algorithm is discussed. Based on analyses of self-randomized modular exponentiation algorithm, a new side-channel atomic strict self-randomized modular exponentiation algorithm is proposed in which a BBS random number generator and the side-channel atomic technology are applied to improve the original algorithm. The results of simulation experiments indicate that this method is effective and practical to prevent differential power analysis attacks.