摘要
阐明了集成电路中基本单元CMOS逻辑门在实现加密算法时的功耗特征及数据功耗相关特性。利用AT89C52单片机实现了RSA嵌入式加密系统,在此基础上进行实验,得到了一个RSA加密实现的功率轨迹,通过对功率轨迹的分析,直接读出密钥。实验结果表明,简单功耗分析对于没有任何防护措施的RSA加密实现的攻击是十分简单而且高效的。
Explains the relation of the power consumption characters and data--dependent power consumption of CMOS logic gates which form the integrated circuits （ICs）. A RSA cipher system was implemented with an AT89C52 SCM, and with this expriment platform, a power trace of R, SA encryption was obtained. It gets the power trace of a PSA encryption algorithm through the physical experiment, and directly gets the key with the SPA. The result indicates that attacking P, SA encrypted systems without some extra protective measures SPA is quite easy and efficient.
出处
《计算机安全》
2009年第2期16-18,共3页
Network & Computer Security
