Side-Channel Leakage Analysis of Inner Product Masking  

作　　者：Yuyuan Li Lang Li Yu Ou 

机构地区：[1]College of Computer Science and Technology,Hengyang Normal University,Hengyang,421002,China [2]Hunan Provincial Key Laboratory of Intelligent Information Processing and Application,Hengyang Normal University,Hengyang,421002,China

出　　处：《Computers, Materials & Continua》2024年第4期1245-1262,共18页计算机、材料和连续体（英文）

基　　金：the Hunan Provincial Natrual Science Foundation of China(2022JJ30103);“the 14th Five-Year”Key Disciplines and Application Oriented Special Disciplines of Hunan Province(Xiangjiaotong[2022]351)the Science and Technology Innovation Program of Hunan Province(2016TP1020).

摘　　要：The Inner Product Masking(IPM)scheme has been shown to provide higher theoretical security guarantees than the BooleanMasking(BM).This scheme aims to increase the algebraic complexity of the coding to achieve a higher level of security.Some previous work unfolds when certain(adversarial and implementation)conditions are met,and we seek to complement these investigations by understanding what happens when these conditions deviate from their expected behaviour.In this paper,we investigate the security characteristics of IPM under different conditions.In adversarial condition,the security properties of first-order IPMs obtained through parametric characterization are preserved in the face of univariate and bivariate attacks.In implementation condition,we construct two new polynomial leakage functions to observe the nonlinear leakage of the IPM and connect the security order amplification to the nonlinear function.We observe that the security of IPMis affected by the degree and the linear component in the leakage function.In addition,the comparison experiments from the coefficients,signal-to-noise ratio(SNR)and the public parameter show that the security properties of the IPM are highly implementation-dependent.

关 键 词：Side-channel analysis inner product masking mutual information nonlinear leakage 

分 类 号：TN918[电子电信—通信与信息系统]