Valet Services: Improving Hidden Servers with a Personal Touch

Abstract

Location hidden services have received increasing attention as a means to resist censorship and protect the identity of service operators. Research and vulnerability analysis to date has mainly focused on how to locate the hidden service. But while the hiding techniques have improved, almost no progress has been made in increasing the resistance against DoS attacks directly or indirectly on hidden services. In this paper we suggest improvements that should be easy to adopt within the existing hidden service design, improvements that will both reduce vulnerability to DoS attacks and add QoS as a service option. In addition we show how to hide not just the location but the existence of the hidden service from everyone but the users knowing its service address. Not even the public directory servers will know how a private hidden service can be contacted, or know it exists.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA462136

Entities

People

  • Lasse Oeverlier
  • Paul Syverson

Organizations

  • Norwegian Defence Research Establishment

Tags

Communities of Interest

  • Cyber

DTIC Thesaurus Topics

  • Anonymous Communications
  • Authentication
  • Availability
  • Bandwidth
  • Censorship
  • Communication Channels
  • Communication Systems
  • Cryptography
  • Denial Of Service Attack
  • Directories
  • Hash Tables
  • Identities
  • Information Operations
  • Military Research
  • Networks
  • Probability
  • Secure Communications

Fields of Study

  • Computer science

Readers

  • Computer Networking
  • Cybersecurity.
  • Systems Analysis and Design