基于深度森林的网络匿名流量检测方法研究与应用

doi:10.3969/j.issn.1671-1122.2022.08.008

信息网络安全 ›› 2022, Vol. 22 ›› Issue (8): 64-71.doi: 10.3969/j.issn.1671-1122.2022.08.008

基于深度森林的网络匿名流量检测方法研究与应用

魏松杰, 李成豪(), 沈浩桐, 张文哲

南京理工大学计算机科学与工程学院,南京 210094

收稿日期:2022-04-12 出版日期:2022-08-10 发布日期:2022-09-15
通讯作者: 李成豪 E-mail:120106333731@njust.edu.cn
作者简介:魏松杰（1977—）,男,江苏,副教授,博士,主要研究方向为网络攻防、流量分析、入侵检测、身份认证、安全协议设计、安全态势感知和区块链|李成豪（1997—）,男,安徽,硕士研究生,主要研究方向为流量分析和入侵检测。|沈浩桐（1998—）,男,江苏,硕士研究生,主要研究方向为软件定义网络、DDoS检测和回溯|张文哲（1997—）,男,河南,硕士研究生,主要研究方向为强化学习、合作博弈和入侵检测
基金资助:
国家自然科学基金(61472189);工信部2020年工业互联网创新发展工项目(61802186)

Research and Application of Network Anonymous Traffic Detection Method Based on Deep Forest

WEI Songjie, LI Chenghao(), SHEN Haotong, ZHANG Wenzhe

School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

Received:2022-04-12 Online:2022-08-10 Published:2022-09-15
Contact: LI Chenghao E-mail:120106333731@njust.edu.cn

摘要/Abstract

摘要：

网络流量分类一直是许多研究工作的关注领域,数据加密的普遍使用使其成为一个公开的技术挑战。数据加密是各种隐私增强工具中使用的一项关键技术。其中,基于匿名通信系统Tor构建的暗网是现今规模最大的匿名通信实体,常被犯罪分子用来从事各类违法犯罪活动,因此高效识别Tor流量具有重要研究意义。文章根据Tor匿名通信流量特点设计了一组用于Tor流量行为检测的网络流特征,并在原有深度森林模型的内存需求和时间开销局限性问题上,提出一种改进的深度森林模型,用于Tor网络流量的识别。实验结果表明,与已有识别方法相比,文章提出的模型准确率可达99.86%,同时,检测时间开销和内存需求都有所优化。

关键词: 流量分类, Tor暗网, 匿名流量, 深度森林

Abstract:

Traffic classification has been the subject of many research studies. The widespread use of encryption make it an open technical challenge. Data encryption is a key technology used in various privacy enhancing tools. Among them, The darknet based on Tor anonymous communication system is the largest anonymous communication entity today, It is often used by criminals to engage in various illegal and criminal activities. Therefore, efficient identification and recognition of Tor traffic is of great significance. According to the characteristics of Tor anonymous traffic, this paper designs a set of network flow characteristics for Tor traffic behavior detection. To address the shortcomings of the original deep forest model in terms of memory and time overheads, this paper proposes an improved deep forest model for Tor network traffic identification. The experimental results show that, compared with the existing recognition methods, the proposed model can achieve 99.86% accuracy, and the detection time overhead and memory requirements are optimized.

Key words: traffic classification, Tor darknet, anonymized traffic, deep forest

中图分类号:

TP309

魏松杰, 李成豪, 沈浩桐, 张文哲. 基于深度森林的网络匿名流量检测方法研究与应用[J]. 信息网络安全, 2022, 22(8): 64-71.

WEI Songjie, LI Chenghao, SHEN Haotong, ZHANG Wenzhe. Research and Application of Network Anonymous Traffic Detection Method Based on Deep Forest[J]. Netinfo Security, 2022, 22(8): 64-71.

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参考文献 17

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0	0	32	0	0	144

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	来源	本网站

	次数	292
	比例	100%

特征	相关度
Flow Bytes/s	0.8778
Flow Duration	0.8745
Fwd IAT Mean	0.7135
Bwd IAT Mean	0.7134
Flow IAT Std	0.7034
Fwd IAT Min	0.6961
Flow IAT Mean	0.6921
Bwd IAT Min	0.6874
Idle Max	0.6868
Idle Min	0.6755
Idle Mean	0.6726
Flow Bytes/s	0.6692
…	…

特征属性	描述
Flow Bytes/s	每秒流字节数
Flow Duration	流持续时间
Fwd IAT mean/max/min/std	正向流中包到达间隔的mean/max/min/std
Bwd IAT mean/max/min/std	反向流中包到达间隔的 mean/max/min/std
Fwd Packet Length mean/max/min/std	正向流中包长度的 mean/max/min/std
Bwd Packet Length mean/max/min/std	反向流中包长度的 mean/max/min/std
Flow IAT mean/max/min/std	包到达间隔时间的 mean/max/min/std
Active mean/max/min/std	流变为空闲态之前活动时间的 mean/max/min/std
Idle mean/max/min/std	流变为活动态之前空闲时间的 mean/max/min/std
Total Fwd Packet	正向数据包总数
Total Bwd packets	反向数据包总数
Total Length of Fwd Packet	正向数据包总大小
Total Length of Bwd Packet	反向数据包总大小
Flow Packets/s	每秒流数据包数

类别	版本
处理器	Intel(R) Core(TM) i5-6300 CPU
显卡	NVIDIA GeForce GTX 960M
Python3	3.7
Tensorflow	2.8.0
Scikit-learn	1.0.2

流超时值/s	Tor	nonTor	总计
2	32901	162552	195453
4	17556	137155	154711
8	9713	102970	112683
16	5329	86495	91824
32	2924	69633	72557
64	1626	61012	62638
128	930	57655	58585

方法	准确率	精确率	F1-Score	召回率	训练时长/s	测试时长/s	内存开销 /MB	流超时时间/s
gcCS	99.90%	99.24%	98.96%	98.68%	189.54	11.94	24.67	2
gc	99.90%	99.62%	99.20%	98.78%	692.11	29.06	25.14	2
gcCS	99.85%	99.56%	99.40%	99.24%	197.87	3.89	20.84	4
gc	99.87%	99.67%	99.48%	99.3%	467.00	21.25	25.55	4
gcCS	99.83%	99.62%	99.46%	99.54%	159.12	3.20	20.02	8
gc	99.85%	99.68%	99.59%	99.51%	378.96	20.94	23.125	8
gcCS	99.86%	99.82%	99.72%	99.62%	114.92	2.72	20.00	16
gc	99.87%	99.82%	99.68%	99.75%	291.86	32.57	22.60	16
gcCS	99.85%	98.61%	97.61%	96.93%	213.00	8.76	20.14	32
gc	99.89%	98.96%	98.37%	97.78%	259.00	29.43	23.09	32
gcCS	99.85%	98.76%	96.67%	94.66%	162.98	6.42	20.09	64
gc	99.85%	98.46%	96.68%	94.96%	148.86	17.75	21.13	64
gcCS	99.85%	94.39%	95.36%	96.35%	166.86	2.80	22.04	128
gc	99.90%	96.88%	96.88%	96.88%	141.00	24.55	22.18	128

基于深度森林的网络匿名流量检测方法研究与应用

Research and Application of Network Anonymous Traffic Detection Method Based on Deep Forest

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分类器	准确率	精确率	F1-Score	召回率
gcCS	99.86%	99.82%	99.72%	99.62%
gc	99.87%	99.82%	99.68%	99.75%
SVM	98.43%	97.00%	94.66%	92.43%
RandomForest	99.79%	99.64%	99.31%	98.98%
DecisionTree	99.69%	99.07%	98.99%	98.9%
DNN	98.49%	97.47%	94.85%	92.37%