车载资源约束下的控制器域网络异常检测自适应优化方法

张金锋; 张震; 刘少勋; 邬江兴

doi:10.11999/JEIT220692

车载资源约束下的控制器域网络异常检测自适应优化方法

doi: 10.11999/JEIT220692

张金锋^{1, 2, ,},
张震^{2, 3},
刘少勋²,
邬江兴^{1, 2, 3}

1.
东南大学网络空间安全学院南京 211189
2.
网络通信与安全紫金山实验室南京 211111
3.
国家数字交换系统工程技术研究中心郑州 450002

基金项目: 河南省重大科技专项(221100240100)，郑州市重大科技创新专项(2021KJZX0060-3)

详细信息

作者简介:
张金锋：男，高级工程师，研究方向为智能网联汽车广义功能安全、AI安全

张震：男，副教授，研究方向为智能网联汽车广义功能安全、网络测量与管理

刘少勋：男，高级工程师，研究方向为智能网联汽车广义功能安全、工业互联网拟态安全

邬江兴：男，教授，研究方向为内生安全、多模态网络等

通讯作者:
张金锋　zhangjinfeng@pmlabs.com.cn

中图分类号: TN919.5
计量
- 文章访问数: 364
- HTML全文浏览量: 120
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- 被引次数: 0
出版历程
- 收稿日期: 2022-05-30
- 修回日期: 2022-09-09
- 网络出版日期: 2022-09-15
- 刊出日期: 2023-07-10

Adaptive Optimization Method for Controller Area Network Anomaly Detection under Vehicle Resource Constraints

ZHANG Jinfeng^{1, 2
, ,},
ZHANG Zhen^{2, 3},
LIU Shaoxun²,
WU Jiangxing^{1, 2, 3}

1.
School of Cyber Science and Engineering, Southeast University, Nanjing 211189, China
2.
Network Communication and Security Purple Mountain Laboratory, Nanjing 211111, China
3.
National Digital Switching System Engineering and Technological Research and Development Center, Zhengzhou 450002, China

Funds: The Major Science and Technology Project of Henan Province (221100240100), The Major Science and Technology Innovation Special Project of Zhengzhou (2021KJZX0060-3)

摘要

摘要: 针对在有限的车载资源约束条件下，如何兼顾控制器域网络(CAN)异常检测准确度和时效性的问题，该文提出一种CAN网络异常检测自适应优化方法。首先，基于信息熵建立了CAN网络异常检测的准确度和时效性量化指标，并将CAN网络异常检测建模为多目标优化问题；然后，设计了求解多目标优化问题的第二代非支配排序遗传算法(NSGA-II)，将帕累托前沿作为CAN网络异常检测模型参数的优化调整空间，提出了满足不同场景需求的检测模型鲁棒控制机制。通过实验分析，深入剖析了优化参数对异常检测的影响，验证了所提方法能够在有限车载资源下适应多样化检测场景需求。
- 智能网联汽车 /
- 资源约束 /
- 控制器域网络异常检测 /
- 多目标优化 /
- 鲁棒控制机制
Abstract: Considering the problem of how to take into account the accuracy and timeliness of Controller Area Network(CAN) anomaly detection under the constraints of limited vehicle resources, an adaptive optimization method for CAN anomaly detection is proposed. Firstly, based on information entropy, the quantification index of the accuracy and timeliness of CAN network anomaly detection is established, and the CAN anomaly detection is modeled as a multi-objective optimization problem. Then, the Non-dominated Sorting Genetic Algorithm-II (NSGA-II) algorithm for solving the multi-objective optimization problem is designed. The Pareto frontier is used as the optimization and adjustment space of the parameters of the CAN anomaly detection model, and a robust control mechanism of the detection model is proposed to meet the needs of different scenarios. Through experimental analysis, the influence of optimization parameters on anomaly detection is deeply analyzed, and it is verified that the proposed method can adapt to the needs of diverse detection scenarios under limited vehicle resources.
- Intelligent networked vehicle /
- Resource constraints /
- Controller Area Network(CAN) anomaly detection /
- Mmulti-objective optimization /
- Robust control mechanism

HTML全文

图 1 CAN网络数据结构

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图 2 部分攻击CAN报文逃避检测的情况

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图 3 适应多样化场景的CAN网络异常检测优化方法总体思路

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图 4 基于NSGA-II的CAN网络异常检测优化算法流程

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图 5 适应多样化检测场景的鲁棒控制机制总体流程

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图 6 不同采样窗口大小条件下的CAN报文信息熵变化趋势

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图 7 不同采样窗口大小条件下的入侵检测准确度变化情况

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图 8 不同滑动尺度下的CAN报文信息熵变化情况

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图 9 不同滑动尺度下的入侵检测准确度变化情况

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图 10 不同滑动尺度下的入侵检测时效性变化情况

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图 11 不同灵敏度下的入侵检测准确度变化趋势

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图 12 多目标优化方法实验案例计算结果

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图 13 本文方法在不同检测场景下的适用性分析

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图 14 报文数量递增策略下的检测准确度比较分析

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图 15 注入频次递减策略下的检测准确度比较分析

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算法1 基于信息熵检测CAN报文的准确度算法
输入：CAN 报文集合$ {S_{{\text{data}}}} $
输出：检测准确度$P ({\bf{IDS}} )$
(1) 从$ {S_{{\text{data}}}} $中提取CAN 报文ID集$ {S_{{\text{ID}}}} $；
(2) 循环计算每个滑动窗口CAN报文的检测准确度：
(a) 利用式(2)计算滑动窗口内的CAN报文ID 信息熵$H{\text{(} }{\bf{IDS}}{\text{)} }$；
(b)将$H{\text{(} }{\bf{IDS}}{\text{)} }$与$S{\text{(} }{\bf{IDS}}{\text{)} }$进行比较，若$H{\text{(} }{\bf{IDS}}{\text{)} } \in S{\text{(} }{\bf{IDS}}{\text{)} }$，则　　　　判断窗口内报文正常；
(c) 将检测结果与实际结果比较，得到单次检测的准确度；
(d) 并统计未被列入检测窗口的正常消息比例。
(3) 综合每次窗口滑动检测结果，利用式(4)计算最终准确度。

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表 1 CAN报文实验数据集

数据集	数量	ID范围
Normal	30000	0x001～0x7ff
DoS	36000	0x000～0x7ff
Injection	36000	0x000～0x7ff

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表 2 本文所提优化方法的帕累托前沿

序号	参数			准确度	时效性
序号	窗口大小	滑动尺度	阈值区间灵敏度	准确度	时效性
1	27	4	2.3625	1.000	0.1290
2	54	6	2.4146	0.999	0.1000
3	21	1	2.3821	0.994	0.0448
4	206	2	2.5523	0.992	0.0096

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