SFMap: Inferring services over encrypted web flows using dynamical domain name graphs

Tatsuya Mori, Takeru Inoue, Akihiro Shimoda, Kazumichi Sato, Keisuke Ishibashi, Shigeki Goto

研究成果: Conference contribution

12 被引用数 (Scopus)

抄録

Most modern Internet services are carried over the web. A significant amount of web transactions is now encrypted and the transition to encryption hasmade it difficult for network operators to understand traffic mix.Thegoal of this study is to enable network operators to inferhostnames within HTTPS traffic because hostname information is useful to understand the breakdown of encrypted web traffic. The proposed approach correlates HTTPS flows and DNS queries/responses. Although this approach may appear trivial, recent deployment and implementation ofDNS ecosystems have made it a challenging research problem; i.e., canonical name tricks used by CDNs, the dynamic and diverse nature of DNS TTL settings, and incompletemeasurements due to the existence of various caching mechanisms. To tackle these challenges, we introduce domain name graph (DNG), which is a formal expression that characterizes the highly dynamic and diverse nature of DNS mechanisms. Furthermore, we have developed a framework called Service-Flow map (SFMap) that works on top of the DNG. SFMap statistically estimates the hostname of an HTTPS server, given a pair of client and server IP addresses.We evaluate the performance ofSFMapthrough extensive analysis using real packet traces collected from two locations with different scales.Wedemonstrate thatSFMapestablishes good estimation accuracies and outperforms a state-of-the-art approach.

本文言語English
ホスト出版物のタイトルTraffic Monitoring and Analysis - 7th International Workshop, TMA 2015, Proceedings
編集者Pere Barlet-Ros, Olivier Bonaventure, Moritz Steiner
出版社Springer Verlag
ページ126-139
ページ数14
ISBN(電子版)9783319171715
DOI
出版ステータスPublished - 2015 1 1
イベント7th International Workshop on Traffic Monitoring and Analysis, TMA 2015 - Barcelona, Spain
継続期間: 2015 4 212015 4 24

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
9053
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

Other7th International Workshop on Traffic Monitoring and Analysis, TMA 2015
CountrySpain
CityBarcelona
Period15/4/2115/4/24

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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