IDEAS home Printed from https://ideas.repec.org/a/gam/jmathe/v11y2023i19p4105-d1250069.html
   My bibliography  Save this article

SmartMeasurer: A Secure and Automated Bandwidth Measurement for Tor with Smart Contract

Author

Listed:
  • Zejia Tang

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Tianyao Pan

    (School of Computer Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Yang Han

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Tongzhou Shen

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Lei Xu

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

  • Dawei Xu

    (School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
    College of Cybersecurity, Changchun University, Changchun 130022, China)

Abstract

Tor is now using a centralized measurement system called Sbws to measure the bandwidth of relays to guide clients in selecting relays to balance traffic. Sbws has been proven to be vulnerable to multiple attacks because of the centralized structure and exposed measurements. We present SmartMeasurer, a secure and decentralized system for bandwidth measurement. Combining smart contract, Oracle Chainlink and ECC technology, we achieve decentralization while hiding the measurement circuits among the general circuits by exploiting the dual identity of randomly dynamic measurers and guards. We analyze the security of our system and demonstrate that it defends against three types of attacks. Our experiments on both private and public Tor networks show that our system is decentralized while keeping the error and the average of our measurements converges to a small interval of 0.30 Mbps. Compared to other existing methods, our system reduces trust assumptions and the costs of using smart contract, and enhances the practical feasibility of the solution.

Suggested Citation

  • Zejia Tang & Tianyao Pan & Yang Han & Tongzhou Shen & Lei Xu & Dawei Xu, 2023. "SmartMeasurer: A Secure and Automated Bandwidth Measurement for Tor with Smart Contract," Mathematics, MDPI, vol. 11(19), pages 1-21, September.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:19:p:4105-:d:1250069
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2227-7390/11/19/4105/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2227-7390/11/19/4105/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jmathe:v:11:y:2023:i:19:p:4105-:d:1250069. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.