SM3密码杂凑算法的安全性问题分析及应用  

Security Analysis and Application of SM3 Cipher Hash Algorithm

作　　者：黄琳 弓晓锋 周慧 梁正华 HUANG Lin;GONG Xiaofeng;ZHOU Hui;LIANG Zhenghua(Guizhou Science and Technology Information Center,Guiyang Guizhou 550002;Guizhou Science and Technology Innovation Center Co.,Ltd.,Guiyang Guizhou 550002)

机构地区：[1]贵州省科技信息中心,贵州贵阳550002 [2]贵州省科技创新中心有限责任公司,贵州贵阳550002

出　　处：《中国科技纵横》2023年第23期69-71,共3页China Science & Technology Overview

基　　金：“SM3国产密码算法在微服务JWT用户认证体系中的研究与应用”(黔科合基础[2019]1425号)。

摘　　要：在信息发达的互联网时代,信息传输无处不在,数据的安全传输是信息传输的基本要求。SM3杂凑算法作为我国的商用密码杂凑算法标准,也需要满足安全传输的要求,但是作为一个基于Hash思想的加密算法,在输出密文长度固定时,其Hash映射一定会出现碰撞,使其一定会遭受伪原根攻击。基于此,对28轮的伪原根攻击的部分方法进行分析,并分析攻击轮数减少后的随机性。In today's information developed Internet era,information transmission is everywhere,and the safe transmission of data is the basic requirement of information transmission.As the commercial cryptographic hash algorithm standard in China,SM3 hash algorithm also needs to meet the requirements of secure transmission.However,as an encryption algorithm based on Hash idea,when the output ciphertext length is fixed,its Hash mapping will inevitably collide,making it vulnerable to pseudo root attacks.This paper will analyze some methods of 28 rounds of pseudo root attacks,and analyze the randomness after the number of attack rounds is reduced.

关 键 词：SM3杂凑算法 伪原根攻击 杂凑函数 

分 类 号：F426[经济管理—产业经济]