针对基于中国剩余定理RSA算法的光故障攻击分析

Optical Fault Attack on CRT-Based RSA

基于中国剩余定理的RSA算法在智能卡和密码系统中得到广泛的应用,其安全性直接关系到人们的利益.本文使用一种简单的方法对密码芯片进行光故障注入,通过激光照射开封后的芯片,影响密码系统加密过程,获取芯片内部的秘密信息.实验说明对运行基于中国剩余定理RSA算法的密码芯片存在安全隐患.

The Chinese Remainder Theorem（CRT）based RSA algorithm is very suitable in smartcard and cryptosystem,however the security benefit people＇s interest.This paper showed a method to practice an optical injection in cryptographic device.The attack was used laser irradiation the depackaged device to impact cryptographic computation process,obtained the secret information from the inside of chip.This paper presented implementation CRT-RSA algorithm in cryptographic device existed security issue.