A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the DNS Extensions Working Group of the IETF.
Title : DNSSEC Hash Authenticated Denial of Existence
Author(s) : B. Laurie, et al.
Filename : draft-ietf-dnsext-nsec3-02.txt
Pages : 37
Date : 2005-6-29
The DNS Security (DNSSEC) NSEC resource record (RR) is intended to be
used to provide authenticated denial of existence of DNS ownernames
and types; however, it permits any user to traverse a zone and obtain
a listing of all ownernames.
A complete zone file can be used either directly as a source of
probable e-mail addresses for spam, or indirectly as a key for
multiple WHOIS queries to reveal registrant data which many
registries (particularly in Europe) may be under strict legal
obligations to protect. Many registries therefore prohibit copying
of their zone file; however the use of NSEC RRs renders policies
unenforceable.
This document proposes a scheme which obscures original ownernames
while permitting authenticated denial of existence of non-existent
names. Non-authoritative delegation point NS RR types may be
excluded.
A URL for this Internet-Draft is:
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