Abstract: This paper declares the principle of the differential power analysis(DPA) attack technology and the behavior of the encryption (decryption) chip’s power consumption during work at different abstract levels, gives several simulated models of power consumption at different abstract levels, and introduces the usage of the models in the simulator of the differential power analysis attack during the design of the crypto chips by a simulated DPA attack against DES.

Key words: DPA, simulator, power consumption model

摘要： 通过分析差分功率分析技术的实现原理和完成加(解)密功能的芯片在实际工作中的功率消耗值在不同的抽象层面的表现形式，提出了在不同的抽象级别对加(解)密设备在实际工作中的功率消耗情况进行仿真的方法，通过给出一个针对数字加密标准加密算法的差分功率分析攻击仿真的实际例子，介绍了在设备的设计阶段该方法是如何应用到对设备的差分功率分析攻击的仿真中的。

关键词: 差分功率分析, 仿真, 功率消耗模型

CLC Number: 

• TN918.4