针对AES加密设备的DPA功耗攻击平台设计

发布时间：2018-05-07 04:11

本文选题：密码学 + 高级加密标准　；参考：《华中科技大学学报(自然科学版)》2017年08期

【摘要】：针对目前密码学界旁路攻击平台攻击效率低、通用性差、成本过高的问题,分析AES加密原理,设计了一种差分功耗攻击(DPA)平台.该平台使用XILINX公司的Spartan-6FPGA作为主控芯片,为加密设备提供时钟信号,解决了波形对齐的问题;在FPGA中例化MicroBlaze软核处理器,根据不同加密设备特点编写攻击代码,通用性较好.采取多种隔离措施,将噪声的干扰降到最低,大大提高了攻击效率.实验结果表明:在5min内成功破解了运行在C52和STM32上的AES加密算法.在保证攻击效率的前提下,DPA攻击平台的成本不到500元,并且保留有针对SIM卡和FPGA密码设备的攻击接口,作为下一步实验的硬件平台.
[Abstract]:Aiming at the problems of low efficiency, poor generality and high cost of bypass attack platform in cryptology, this paper analyzes the principle of AES encryption, and designs a differential power attack (DPA) platform. The platform uses Spartan-6FPGA of XILINX Company as the main control chip to provide clock signal for encryption equipment, and solves the problem of waveform alignment. In FPGA, the MicroBlaze soft core processor is used as an example, and the attack code is written according to the characteristics of different encryption devices. A variety of isolation measures are adopted to minimize the noise interference, and the attack efficiency is greatly improved. The experimental results show that the AES encryption algorithm running on C52 and STM32 is successfully cracked in 5min. The cost of the attack platform is less than 500 yuan under the premise of ensuring the efficiency of the attack, and the attack interface for SIM card and FPGA cryptosystem is reserved as the hardware platform for the next experiment.
【作者单位】：华中科技大学光学与电子信息学院;
【基金】：国家自然科学基金资助项目(61376026,61202469)
【分类号】：TN918.4

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