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| 講演名 | 2015-10-16 13:05 Improving Traffic Load Distribution for Tor Network ○Timothy Girry Kale・Satoshi Ohzahata・Celimuge Wu・Toshihiko Kato（UEC）  IN2015-58 |
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| 抄録 | （和） | The Tor network has its user grown by thousands every year. The increasing number of users around the world makes Tor become one of the widely used privacy network today. However, as the number of Tor user increases, the performance of Tor network degrades rapidly due to increasing circuit congestion. Tor fails to provide better quality of communication due to unfairly distribution of traffic load between the bulk and the light users. This problem contributed to throughput degradation and poor quality of services when onion routers were overloaded. To improve these problems, we proposed a simple method of dynamic circuit switching in the Tor application level to efficiently reduce the load in Tor output buffers and TCP socket buffers. By actively switching the bulk traffics at the circuit level to different TCP connection and higher capacity ORs, we were able to distribute the load efficiently with high fairness indexes for all bulk and light users. We evaluated the proposed method on our setup testbed experiment and partly in the live Tor network. Our experimental results show the proposed method achieves fairness in throughputs under multiple circuit flows. |
| （英） | The Tor network has its user grown by thousands every year. The increasing number of users around the world makes Tor become one of the widely used privacy network today. However, as the number of Tor user increases, the performance of Tor network degrades rapidly due to increasing circuit congestion. Tor fails to provide better quality of communication due to unfairly distribution of traffic load between the bulk and the light users. This problem contributed to throughput degradation and poor quality of services when onion routers were overloaded. To improve these problems, we proposed a simple method of dynamic circuit switching in the Tor application level to efficiently reduce the load in Tor output buffers and TCP socket buffers. By actively switching the bulk traffics at the circuit level to different TCP connection and higher capacity ORs, we were able to distribute the load efficiently with high fairness indexes for all bulk and light users. We evaluated the proposed method on our setup testbed experiment and partly in the live Tor network. Our experimental results show the proposed method achieves fairness in throughputs under multiple circuit flows. | |
| キーワード | （和） | Onion Router (OR) / Onion Proxy (OP) / Circuit Switching / Throughputs / Buffer Occupancy / Fairness Index / TCP / |
| （英） | Onion Router (OR) / Onion Proxy (OP) / Circuit Switching / Throughputs / Buffer Occupancy / Fairness Index / TCP / | |
| 文献情報 | 信学技報, vol. 115, no. 252, IN2015-58, pp. 29-34, 2015年10月. | |
| 資料番号 | IN2015-58 | |
| 発行日 | 2015-10-08 (IN) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | IN2015-58 |
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| 研究会情報 | |
| 研究会 | IN |
| 開催期間 | 2015-10-15 - 2015-10-16 |
| 開催地（和） | 大阪大学 |
| 開催地（英） | Osaka University |
| テーマ（和） | 障害対策・BCP、信頼性技術、セキュリティ・プライバシー保護技術、認証/ID管理、Webサービス/SOA/ROA基盤、ソーシャルネットワーク(SNS)及び一般 |
| テーマ（英） | Contingency Plan/BCP, Robustness, Security and Privacy, Authentication/ID management, Web Service/SOA/ROA Platform, Social Networking Service (SNS), etc. |
| 講演論文情報の詳細 | |
| 申込み研究会 | IN |
| 会議コード | 2015-10-IN |
| 本文の言語 | 英語 |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Improving Traffic Load Distribution for Tor Network |
| サブタイトル（英） | |
| キーワード(1)（和/英） | Onion Router (OR) / Onion Router (OR) |
| キーワード(2)（和/英） | Onion Proxy (OP) / Onion Proxy (OP) |
| キーワード(3)（和/英） | Circuit Switching / Circuit Switching |
| キーワード(4)（和/英） | Throughputs / Throughputs |
| キーワード(5)（和/英） | Buffer Occupancy / Buffer Occupancy |
| キーワード(6)（和/英） | Fairness Index / Fairness Index |
| キーワード(7)（和/英） | TCP / TCP |
| キーワード(8)（和/英） | / |
| 第1著者 氏名（和/英/ヨミ） | Timothy Girry Kale / Timothy Girry Kale / |
| 第1著者 所属（和/英） | University of Electro-Communications (略称： 電通大) University of Electro-Communications (略称： UEC) |
| 第2著者 氏名（和/英/ヨミ） | Satoshi Ohzahata / Satoshi Ohzahata / |
| 第2著者 所属（和/英） | University of Electro-Communications (略称： 電通大) University of Electro-Communications (略称： UEC) |
| 第3著者 氏名（和/英/ヨミ） | Celimuge Wu / Celimuge Wu / |
| 第3著者 所属（和/英） | University of Electro-Communications (略称： 電通大) University of Electro-Communications (略称： UEC) |
| 第4著者 氏名（和/英/ヨミ） | Toshihiko Kato / Toshihiko Kato / |
| 第4著者 所属（和/英） | University of Electro-Communications (略称： 電通大) University of Electro-Communications (略称： UEC) |
| 講演者 | 第1著者 |
| 発表日時 | 2015-10-16 13:05:00 |
| 発表時間 | 25分 |
| 申込先研究会 | IN |
| 資料番号 | IN2015-58 |
| 巻番号（vol） | vol.115 |
| 号番号（no） | no.252 |
| ページ範囲 | pp.29-34 |
| ページ数 | 6 |
| 発行日 | 2015-10-08 (IN) |
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