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Summary: On the Performance and Analysis of DNS Security Extensions
Reza Curtmola Aniello Del Sorbo Giuseppe Ateniese
Information Security Institute and
Department of Computer Science
Johns Hopkins University, Baltimore, MD 21218, USA
E-mail: {crix, anidel, ateniese}@cs.jhu.edu
Abstract
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 complex-
ity. 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 administra-
tors to employ a secure version of DNS. However, se-
curity comes with a cost. In this paper, we examine
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