公开(公告)号：US09577821B2

公开(公告)日：2017-02-21

申请号：US14680320

申请日：2015-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sung Kim ,  Doo Ho Choi

IPC: H04L29/06 ,  H04L9/00

CPC classification number: H04L9/002 ,  H04L9/003 ,  H04L2209/04 ,  H04L2209/16 ,  H04L2209/24

Abstract: Disclosed is a function masking apparatus in a symmetric cryptographic algorithm for preventing side channel attacks, including: a controller creating lookup tables for one or more internal functions included in a high security and light weight (HIGHT) algorithm, respectively based on a plurality of non-linear functions, a plurality of linear functions, and a plurality of constants which are randomly generated; and a storage unit storing the lookup tables for one or more internal functions included in the generated HIGHT algorithm.

Abstract translation: 公开了一种用于防止侧信道攻击的对称加密算法中的功能掩蔽装置，包括：控制器分别基于多个非信道发现，为包括在高安全性和轻重量（HIGHT）算法中的一个或多个内部功能创建查找表， 线性函数，多个线性函数和多个随机生成的常数; 以及存储单元，存储所生成的HIGHT算法中包括的一个或多个内部功能的查找表。