draft-ietf-dnssec-ddi-00.txt   draft-ietf-dnssec-ddi-01.txt 
INTERNET-DRAFT Donald E. Eastlake 3rd INTERNET-DRAFT Donald E. Eastlake 3rd
CyberCash, Inc. CyberCash, Inc.
Expires 27 August 1996 28 February 1996 Expires 27 February 1997 28 August 1996
Detached Domain Name System Information Detached Domain Name System Information
-------- ------ ---- ------ ----------- -------- ------ ---- ------ -----------
Donald E. Eastlake 3rd Donald E. Eastlake 3rd
Status of This Document Status of This Document
This draft, file name draft-ietf-dnssec-ddi-00.txt, is intended to be This draft, file name draft-ietf-dnssec-ddi-01.txt, is intended to be
become a Proposed Standard RFC. Distribution of this document is become a Proposed Standard RFC. Distribution of this document is
unlimited. Comments should be sent to the DNS Security Working Group unlimited. Comments should be sent to the DNS Security Working Group
mailing list <dns-security@tis.com> or to the author. mailing list <dns-security@tis.com> or to the author.
This document is an Internet-Draft. Internet-Drafts are working This document is an Internet-Draft. Internet-Drafts are working
documents of the Internet Engineering Task Force (IETF), its areas, documents of the Internet Engineering Task Force (IETF), its areas,
and its working groups. Note that other groups may also distribute and its working groups. Note that other groups may also distribute
working documents as Internet-Drafts. working documents as Internet-Drafts.
Internet-Drafts are draft documents valid for a maximum of six Internet-Drafts are draft documents valid for a maximum of six
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To learn the current status of any Internet-Draft, please check the To learn the current status of any Internet-Draft, please check the
1id-abstracts.txt listing contained in the Internet-Drafts Shadow 1id-abstracts.txt listing contained in the Internet-Drafts Shadow
Directories on ds.internic.net (East USA), ftp.isi.edu (West USA), Directories on ds.internic.net (East USA), ftp.isi.edu (West USA),
nic.nordu.net (North Europe), ftp.nis.garr.it (South Europe), nic.nordu.net (North Europe), ftp.nis.garr.it (South Europe),
munnari.oz.au (Pacific Rim), or ftp.is.co.za (Africa). munnari.oz.au (Pacific Rim), or ftp.is.co.za (Africa).
Abstract Abstract
A standard format is defined for representing detached DNS A standard format is defined for representing detached DNS
information. This is anticipated to be of use for storing information. This is anticipated to be of use for storing
information retrieved from the Domain Name System (DNS) in archival information retrieved from the Domain Name System (DNS), including
contexts or contexts not connected to the Internet. security information, in archival contexts or contexts not connected
to the Internet.
Table of Contents Table of Contents
Status of This Document....................................1 Status of This Document....................................1
Abstract...................................................2 Abstract...................................................2
Table of Contents..........................................2 Table of Contents..........................................2
1. Introduction............................................3 1. Introduction............................................3
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Author's Address...........................................8 Author's Address...........................................8
Expiration and File Name...................................8 Expiration and File Name...................................8
1. Introduction 1. Introduction
The Domain Name System (DNS) is a replicated hierarchical distributed The Domain Name System (DNS) is a replicated hierarchical distributed
database system [RFC 1034, 1035] that can provide highly available database system [RFC 1034, 1035] that can provide highly available
service. It provides the operational basis for Internet host name to service. It provides the operational basis for Internet host name to
address translation, automatic SMTP mail routing, and other basic address translation, automatic SMTP mail routing, and other basic
Internet functions. The DNS has recently been extended as described Internet functions. The DNS has recently been extended as described
in draft-ietf-dnssec-secext-*.txt to permit the general storage of in draft-ietf-dnssec-secext-10.txt [approved as a Proposed Standard
public cryptographic keys in the DNS and to enable the authentication but not yet issued as an RFC] to permit the general storage of public
of information retrieved from the DNS though digital signatures. cryptographic keys in the DNS and to enable the authentication of
information retrieved from the DNS though digital signatures.
The DNS was not originally designed for storage of information The DNS was not originally designed for storage of information
outside of the active zones and authoritative master files that are outside of the active zones and authoritative master files that are
part of the connected DNS. However there may be cases where this is part of the connected DNS. However there may be cases where this is
useful, particularly in connection with security information. useful, particularly in connection with security information.
2. General Format 2. General Format
The formats used for detached Domain Name System (DNS) information The formats used for detached Domain Name System (DNS) information
are similar to those used for connected DNS information. The primary are similar to those used for connected DNS information. The primary
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time" field with a leading zero bit in binary detached DNS time" field with a leading zero bit in binary detached DNS
information is reserved for future use. It may indicate a information is reserved for future use. It may indicate a
different format. different format.
RR count - an unsigned integer number (with bytes in network order) RR count - an unsigned integer number (with bytes in network order)
of resource records with the preceding retrieval time. of resource records with the preceding retrieval time.
Resource Records - the actual data which is in the same format as if Resource Records - the actual data which is in the same format as if
it were being transmitted in a DNS response. In particular, name it were being transmitted in a DNS response. In particular, name
compression via pointers is permitted with the origin at the compression via pointers is permitted with the origin at the
beginning of the detached information data section. beginning of the particular detached information data section,
just after the RR count.
2.2. Text Format 2.2. Text Format
The standard text format for detached DNS information is as The standard text format for detached DNS information is as
prescribed for zone master files (see RFC 1035) except that the prescribed for zone master files (see RFC 1035) except that the
$INCLUDE control entry is prohibited and the new $DATE entry is $INCLUDE control entry is prohibited and the new $DATE entry is
required (unless the information set is empty). $DATE is followed by required (unless the information set is empty). $DATE is followed by
the date and time that the following information was obtained from the date and time that the following information was obtained from
the DNS system as described for retrieval time in section 2.1 above. the DNS system as described for retrieval time in section 2.1 above.
It is in the text format YYYYMMDDHHMMSS where YYYY is the year, the It is in the text format YYYYMMDDHHMMSS where YYYY is the year, the
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record sets.) record sets.)
This information could be preserved as a set of detached DNS This information could be preserved as a set of detached DNS
information blocks. information blocks.
4. Security Considerations 4. Security Considerations
The entirety of this document concerns a means to represent detached The entirety of this document concerns a means to represent detached
DNS information. Security considerations are not covered in this DNS information. Security considerations are not covered in this
draft although such detached information may be security relevant draft although such detached information may be security relevant
resource records as described in draft-ietf-dnssec-secext-*.txt. resource records as described in draft-ietf-dnssec-secext-10.txt.
References References
[RFC 1034] - Domain Names - Concepts and Facilities, P. Mockapetris, [RFC 1034] - Domain Names - Concepts and Facilities, P. Mockapetris,
November 1987 November 1987
[RFC 1035] - Domain Names - Implementation and Specifications, P. [RFC 1035] - Domain Names - Implementation and Specifications, P.
Mockapetris, November 1987. Mockapetris, November 1987.
draft-ietf-dnssec-secext-*.txt - Domain Name System Security draft-ietf-dnssec-secext-10.txt - Domain Name System Security
Extensions, D. Eastlake, C. Kaufman. Extensions, D. Eastlake, C. Kaufman.
Author's Address Author's Address
Donald E. Eastlake 3rd Donald E. Eastlake 3rd
CyberCash, Inc. CyberCash, Inc.
318 Acton Street 318 Acton Street
Carlisle, MA 01741 USA Carlisle, MA 01741 USA
Telephone: +1 508 287 4877 Telephone: +1 508 287 4877
+1 508 371 7148(fax) +1 508 371 7148(fax)
+1 703 620 4200(main office, Reston, Virginia) +1 703 620 4200(main office, Reston, Virginia)
EMail: dee@cybercash.com EMail: dee@cybercash.com
Expiration and File Name Expiration and File Name
This draft expires 27 August 1996. This draft expires 27 February 1997.
Its file name is draft-ietf-dnssec-ddi-00.txt. Its file name is draft-ietf-dnssec-ddi-01.txt.
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