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  1. 113 工学系研究科・工学部
  2. 22 電気系工学専攻
  3. 1132225 修士論文(電気系工学専攻)
  1. 0 資料タイプ別
  2. 20 学位論文
  3. 025 修士論文

Proposal of a new trust model for the Internet peers using a financial reputation score

http://hdl.handle.net/2261/54231
33268638-4c8f-4388-92d3-8d27ca49852c
名前 / ファイル ライセンス アクション
37116886.pdf 37116886.pdf (5.1 MB)
Item type 学位論文 / Thesis or Dissertation(1)
公開日 2013-05-07
タイトル
タイトル Proposal of a new trust model for the Internet peers using a financial reputation score
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_46ec
タイプ thesis
その他のタイトル
その他のタイトル 財務面の評判を用いたインターネットピア向け信頼モデルの提案
著者 Vyshegorodtsev, Marat

× Vyshegorodtsev, Marat

WEKO 10599

Vyshegorodtsev, Marat

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著者別名
識別子
識別子 10600
識別子Scheme WEKO
姓名
姓名 ヴィシェゴロデツェフ, マラット
著者所属
著者所属 東京大学大学院工学系研究科電気系工学専攻
著者所属
著者所属 Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo
Abstract
内容記述タイプ Abstract
内容記述 The trust anchors defined in the domain name system (DNS) and secure socket layer (SSL) architecture make the governance of the Internet very rigidly aligned with the domain name registrars and the software vendows. The root certification authorities are defined ultimately and built into the software key stores. However, an end-user is not given any criteria to distinguish the built-in root CAs; hence he is unable to manage the default key store effectively. In this thesis, a new approach of creating a reputation score for the trusted third parties (TTPs) is proposed. Each TTP is evaluated using its financial performance. The amount of transaction fees put on the certificate-signing transactions is counted and used as the reputation score instead of peer feedbacks. It becomes more expensive for a potential attacker to perform Sybil attack due to the increased cost of the vote. The verification experiments showed that even if the feedback-based reputation score is replaced with the financial reputation score, the peer distribution will still follow the power law distribution, and thus the trust decision algorithms based on power law are applicable. Flatcoin, the practical implementation of the proposed reputation system is also described. It expands the Namecoin protocol with certificate payment transactions. The distributed timestamping approach used in Flatcoin provides domain name registration and paid certificate-signing requests in a completely distributed manner. Flatcoin effectively replaces DNS, DNSSEC and SSL Extended Validation without any single pretrusted certificate delivered with the client software.
書誌情報 発行日 2013-03-25
学位名
学位名 修士(工学)
学位
値 master
研究科・専攻
工学系研究科・電気系工学専攻
学位授与年月日
学位授与年月日 2013-03-25
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