Covert channels in IPv6

Norka B. Lucena, Grzegorz Lewandowski, Steve J. Chapin

Research output: Chapter in Book/Entry/PoemConference contribution

102 Scopus citations


A covert channel is a communication path that allows transferring information in a way that violates a system security policy. Because of their concealed nature, detecting and preventing covert channels are obligatory security practices. In this paper, we present an examination of network storage channels in the Internet Protocol version 6 (IPv6). We introduce and analyze 22 different covert channels. In the appendix, we define three types of active wardens, stateless, stateful, and network-aware, who differ in complexity and ability to block the analyzed covert channels.

Original languageEnglish (US)
Title of host publicationPrivacy Enhancing Technologies - 5th International Workshop, PET 2005, Revised Selected Papers
PublisherSpringer Verlag
Number of pages20
ISBN (Print)3540347453, 9783540347453
StatePublished - 2006
Event5th International Workshop on Privacy Enhancing Technologies, PET 2005 - Cavtat, Croatia
Duration: May 30 2005Jun 1 2005

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3856 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other5th International Workshop on Privacy Enhancing Technologies, PET 2005


  • Active warden
  • Covert channel
  • IPsec
  • IPv6
  • Stateful
  • Stateless

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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