On the performance and analysis of DNS security extensions

Reza Curtmola, Aniello Del Sorbo, Giuseppe Ateniese

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


The Domain Name System (DNS) is an essential component of the critical infrastructure of the Internet. The role of DNS is vital, as it is involved in virtually every Internet transaction. It is sometimes remarked that DNS works well as it is now and any changes to it may disrupt its functionality and add complexity. However, due to its importance, an insecure DNS is unacceptable for current and future networks. The astonishing simplicity of mounting an attack against the DNS and the damaging potential of such an attack should convince practitioners and system administrators to employ a secure version of DNS. However, security comes with a cost. In this paper, we examine the performance of two proposals for secure DNS and we discuss the advantages and disadvantages of both. In particular, we analyze the impact that security measures have on the performance of DNS. While it is clear that adding security will lower DNS performance, our results show that the impact of security can be mitigated by deploying different security extensions at different levels in the DNS tree. We also describe the first implementation of the SK-DNSSEC [1] protocol. The code is freely downloadable and released under an open-source license.

Original languageEnglish (US)
Title of host publicationCryptology and Network Security - 4th International Conference, CANS 2005, Proceedings
Number of pages16
StatePublished - 2005
Externally publishedYes
Event4th International Conference on Cryptology and Network Security, CANS 2005 - Xiamen, China
Duration: Dec 14 2005Dec 16 2005

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3810 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other4th International Conference on Cryptology and Network Security, CANS 2005

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • General Computer Science


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