Encrypted traffic identification scheme based on sliding window and randomness features

With the development of information technology, network security has increasingly become a focal point for users and organizations, and encrypted data transmission has gradually become mainstream. This trend has driven the proportion of encrypted traffic on the Internet to rise continuously. However...

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Main Authors: LIU Jiachi, KUANG Boyu, SU Mang, XU Yaqian, FU Anmin
Format: Article
Language:English
Published: POSTS&TELECOM PRESS Co., LTD 2024-08-01
Series:网络与信息安全学报
Subjects:
Online Access:http://www.cjnis.com.cn/thesisDetails#10.11959/j.issn.2096-109x.2024056
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author LIU Jiachi
KUANG Boyu
SU Mang
XU Yaqian
FU Anmin
author_facet LIU Jiachi
KUANG Boyu
SU Mang
XU Yaqian
FU Anmin
author_sort LIU Jiachi
collection DOAJ
description With the development of information technology, network security has increasingly become a focal point for users and organizations, and encrypted data transmission has gradually become mainstream. This trend has driven the proportion of encrypted traffic on the Internet to rise continuously. However, data encryption, while ensuring privacy and security, has also become a means for illegal content to evade network supervision. To achieve the detection and analysis of encrypted traffic, it has become necessary to efficiently identify encrypted traffic. However, the presence of compressed traffic has significantly interfered with the identification of encrypted traffic. To address this issue, an encrypted traffic identification scheme based on sliding windows and randomness features was designed to efficiently and accurately identify encrypted traffic. Specifically, the scheme involved sampling the payloads of data packets in sessions using a sliding window mechanism to obtain data block sequences that reflect the information patterns of the original traffic. For each data block, randomness measurement algorithms were utilized to extract sample features and construct randomness features for the original payload. Additionally, a decision tree model based on the CART algorithm was designed, which significantly improved the accuracy of identifying encrypted and compressed traffic and greatly reduced the false negative rate for encrypted traffic identification. A balanced dataset was constructed by randomly sampling data from several authoritative websites, and experiments demonstrated the feasibility and efficiency of the proposed scheme.
format Article
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institution Kabale University
issn 2096-109X
language English
publishDate 2024-08-01
publisher POSTS&TELECOM PRESS Co., LTD
record_format Article
series 网络与信息安全学报
spelling doaj-art-1a49871379954901b33887eb250556532025-01-15T03:04:11ZengPOSTS&TELECOM PRESS Co., LTD网络与信息安全学报2096-109X2024-08-01109810870108182Encrypted traffic identification scheme based on sliding window and randomness featuresLIU JiachiKUANG BoyuSU MangXU YaqianFU AnminWith the development of information technology, network security has increasingly become a focal point for users and organizations, and encrypted data transmission has gradually become mainstream. This trend has driven the proportion of encrypted traffic on the Internet to rise continuously. However, data encryption, while ensuring privacy and security, has also become a means for illegal content to evade network supervision. To achieve the detection and analysis of encrypted traffic, it has become necessary to efficiently identify encrypted traffic. However, the presence of compressed traffic has significantly interfered with the identification of encrypted traffic. To address this issue, an encrypted traffic identification scheme based on sliding windows and randomness features was designed to efficiently and accurately identify encrypted traffic. Specifically, the scheme involved sampling the payloads of data packets in sessions using a sliding window mechanism to obtain data block sequences that reflect the information patterns of the original traffic. For each data block, randomness measurement algorithms were utilized to extract sample features and construct randomness features for the original payload. Additionally, a decision tree model based on the CART algorithm was designed, which significantly improved the accuracy of identifying encrypted and compressed traffic and greatly reduced the false negative rate for encrypted traffic identification. A balanced dataset was constructed by randomly sampling data from several authoritative websites, and experiments demonstrated the feasibility and efficiency of the proposed scheme.http://www.cjnis.com.cn/thesisDetails#10.11959/j.issn.2096-109x.2024056encrypted trafficcompressed trafficrandom featuresliding sampling
spellingShingle LIU Jiachi
KUANG Boyu
SU Mang
XU Yaqian
FU Anmin
Encrypted traffic identification scheme based on sliding window and randomness features
网络与信息安全学报
encrypted traffic
compressed traffic
random feature
sliding sampling
title Encrypted traffic identification scheme based on sliding window and randomness features
title_full Encrypted traffic identification scheme based on sliding window and randomness features
title_fullStr Encrypted traffic identification scheme based on sliding window and randomness features
title_full_unstemmed Encrypted traffic identification scheme based on sliding window and randomness features
title_short Encrypted traffic identification scheme based on sliding window and randomness features
title_sort encrypted traffic identification scheme based on sliding window and randomness features
topic encrypted traffic
compressed traffic
random feature
sliding sampling
url http://www.cjnis.com.cn/thesisDetails#10.11959/j.issn.2096-109x.2024056
work_keys_str_mv AT liujiachi encryptedtrafficidentificationschemebasedonslidingwindowandrandomnessfeatures
AT kuangboyu encryptedtrafficidentificationschemebasedonslidingwindowandrandomnessfeatures
AT sumang encryptedtrafficidentificationschemebasedonslidingwindowandrandomnessfeatures
AT xuyaqian encryptedtrafficidentificationschemebasedonslidingwindowandrandomnessfeatures
AT fuanmin encryptedtrafficidentificationschemebasedonslidingwindowandrandomnessfeatures