Retrieve Instruction Sequences with Side Channel Template Based on Hidden Markov Model in Microcontroller

YU Hao; CHEN Kai-yan; ZHANG Yang; DENG Gao-ming; WU Heng-xu

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Retrieve Instruction Sequences with Side Channel Template Based on Hidden Markov Model in Microcontroller

更新时间：2026-09-04

- Retrieve Instruction Sequences with Side Channel Template Based on Hidden Markov Model in Microcontroller
- Vol. 29, Issue 8, Pages: 42-46(2012)
- 作者机构：
  
  1. 军械工程学院计算机工程系,河北,石家庄,050003
  2. 北方电子设备研究所,北京,100191
  3. 成都军区 78086部队,四川,成都,610000
- 作者简介：
- 基金信息：
- DOI：
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- Published：2012
- 稿件说明：
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余浩, 陈开颜, 张阳, 邓高明, 吴恒旭. 基于HMM的微控制器旁路模板指令序列恢复[J]. 微电子学与计算机, 2012, 29(8): 42-46.

YU Hao, CHEN Kai-yan, ZHANG Yang, et al. Retrieve Instruction Sequences with Side Channel Template Based on Hidden Markov Model in Microcontroller[J]. 2012, 29(8): 42-46.
余浩, 陈开颜, 张阳, 邓高明, 吴恒旭. 基于HMM的微控制器旁路模板指令序列恢复[J]. 微电子学与计算机, 2012, 29(8): 42-46. DOI：

YU Hao, CHEN Kai-yan, ZHANG Yang, et al. Retrieve Instruction Sequences with Side Channel Template Based on Hidden Markov Model in Microcontroller[J]. 2012, 29(8): 42-46. DOI：

摘要

针对微控制器代码旁路逆向恢复的问题

采用逆向工程思想与旁路攻击方法

依据不同的指令在芯片内执行时

会产生不同的功耗旁路泄漏信号这一特点

在已实现的单条指令旁路模板恢复的基础上

综合考虑程序的“上下文”信息

运用隐马尔可夫模型(HMM)对该问题进行建模描述与求解.对AT89C52微控制器中运行的数据加密标准(DES)加密算法的部分指令序列的恢复实验表明

该方法能够有效的恢复出微控制器芯片中运行的指令序列.

Abstract

In order to exploit prior knowledge about the program code

a math model

Hidden Markov Model (HMM)

is applied to describe and resolve a problem of recovering the program code of a microcontroller.With the idea of reverse engineering and the method of Side-Channel Attacks (SCA)

and according to the property that different power consumption leakage characters for different instructions executed in chips

a practical experiment based on previous side channel templates built by making use of power consumption leakages for each instruction has shown that instruction sequences executed in a Data Encryption Standard (DES) microcontroller (AT89C52) cipher chip circuit can be reconstructed and has confirmed the effectiveness of method mentioned above.

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