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doc/draft/draft-richardson-ipsec-rr-01.txt → doc/draft/draft-richardson-ipsec-rr-02.txt
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Independent submission M. Richardson
Internet-Draft SSW
Expires: July 16, 2003 January 15, 2003
Expires: August 24, 2003 February 23, 2003
A method for storing IPsec keying material in DNS.
draft-richardson-ipsec-rr-01.txt
draft-richardson-ipsec-rr-02.txt
Status of this Memo
@ -33,7 +29,7 @@ Status of this Memo
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
This Internet-Draft will expire on July 16, 2003.
This Internet-Draft will expire on August 24, 2003.
Copyright Notice
@ -55,42 +51,124 @@ Abstract
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Storage formats . . . . . . . . . . . . . . . . . . . . . . . 4
3. IPSECKEY RDATA format . . . . . . . . . . . . . . . . . . . . 5
3.1 RDATA format - gateway type . . . . . . . . . . . . . . . . . 5
3.2 RDATA format - algo type . . . . . . . . . . . . . . . . . . . 5
3.3 RDATA format - precedence . . . . . . . . . . . . . . . . . . 6
3.4 RDATA format - RSA public key . . . . . . . . . . . . . . . . 6
3.5 RDATA format - DSA public key . . . . . . . . . . . . . . . . 6
3.1 RDATA format - algo type . . . . . . . . . . . . . . . . . . . 5
3.2 RDATA format - precedence . . . . . . . . . . . . . . . . . . 5
3.3 RDATA format - RSA public key . . . . . . . . . . . . . . . . 5
3.4 RDATA format - DSA public key . . . . . . . . . . . . . . . . 6
3.5 RDATA format - gateway . . . . . . . . . . . . . . . . . . . . 6
4. Presentation formats . . . . . . . . . . . . . . . . . . . . . 7
4.1 File Representation of IPSECKEY RRs . . . . . . . . . . . . . 7
4.1 Representation of IPSECKEY RRs . . . . . . . . . . . . . . . . 7
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 9
Normative references . . . . . . . . . . . . . . . . . . . . . 10
Author's Address . . . . . . . . . . . . . . . . . . . . . . . 10
Full Copyright Statement . . . . . . . . . . . . . . . . . . . 11
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1. Introduction
1.1 Overview
Overview.
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2. Storage formats
The IPSECKEY resource record (RR) is used to publish a public key
@ -105,24 +183,57 @@ Table of Contents
the IPSECKEY type. This will be due to the need to rollover keys,
and due to the presence of multiple gateways.
The type number for the IPSECKEY RR is 44 (IANA TBD).
3. IPSECKEY RDATA format
The type number for the IPSECKEY RR is 45 (IANA TBD).
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3. IPSECKEY RDATA format
The RDATA for an IPSECKEY RR consists of a precedence value, a public
key (and algorithm type), and an optional gateway address.
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| gtype | algo | precedence | public key length |
| RESV | algo | precedence | public key length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| /
/ public key
@ -132,25 +243,7 @@ Internet-Draft ipsecrr January 2003
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
3.1 RDATA format - gateway type
The gateway type ("gtype") field indicates the format of the gateway
field. The gateway field may be absent.
0 No gateway field is present
1 A 32-bit IPv4 address is present in the gateway field, in section
2 A 128-bit IPv6 address is present in the gateway field. The data
portion is an IPv6 address as described in section 3.2 of [4].
This is a 128-bit number in network byte order.
3 A fully qualified domain name is present in the gateway field.
The name a %lt;domain-name%gt; encoded as described in section 3.3
of [4]. This field occupies the space until the end of the RDATA.
3.2 RDATA format - algo type
3.1 RDATA format - algo type
The algorithm type ("algo") field indicates the type of key that is
present in the public key field. Valid values are:
@ -161,24 +254,17 @@ Internet-Draft ipsecrr January 2003
2 A DSA key is present, in the format defined in
3.3 RDATA format - precedence
3.2 RDATA format - precedence
This is an 8-bit precedence for this record. This is interpreted in
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a similar way to the PREFERENCE field described in section 3.3.9 of
[3].
3.4 RDATA format - RSA public key
3.3 RDATA format - RSA public key
If the algorithm type has the value 1, then public key portion
contains an RSA public key, encoded as described in secion 2 of [7],
contains an RSA public key, encoded as described in secion 2 of [8],
and repeated here:
1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
@ -187,6 +273,14 @@ Internet-Draft ipsecrr January 2003
| pub exp length| public key exponent /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| /
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+- modulus /
| /
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-/
@ -203,13 +297,49 @@ Internet-Draft ipsecrr January 2003
Leading zero bytes are prohibited in the exponent and modulus.
3.5 RDATA format - DSA public key
3.4 RDATA format - DSA public key
If the algorithm type has the value 2, then public key portion
contains an DSA public key, encoded as described in [6].
contains an DSA public key, encoded as described in [7].
3.5 RDATA format - gateway
The gateway field indicates a gateway to which an IPsec tunnel may be
created in order to reach the entity holding this resource record.
The length of this field is the size of the data portion minus the
public key length, and the 4 bytes of header. The gateway field may
be absent.
The gateway field is a string. It is most commonly a simple fully
qualified domain name (FQDN). IP version 4 and IP version 6
addresses may be represented using names from in-addr.arpa. and
ip6.arpa.
The gateway field may also include a @-character in it. Either in
the form @FQDN, or user@FQDN. In this context, it does not reference
a single destination, but just an identifier that will be used when
doing key negotiations. This may be used in the context where the
gateway does not have a permanent IP address, but has permanent
address space behind it, and will be initiating connections only.
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4. Presentation formats
4.1 File Representation of IPSECKEY RRs
4.1 Representation of IPSECKEY RRs
IPSECKEY RRs may appear as lines in a zone data master file. The
precedence field is mandatory. While both the gateway and public key
@ -220,12 +350,9 @@ Internet-Draft ipsecrr January 2003
indicated, then the special tokens of either "-" or "none" may be
used.
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IPv4 addresses are to be represented as a dotted decimal quad, with
no leading zeroes. IPv6 addresses are to be presented as specified
in section 2.2 of [4].
38.46.139.192.in-addr.arpa. 7200 IN IPSECKEY ( 10 192.139.46.38
@ -237,17 +364,151 @@ Internet-Draft ipsecrr January 2003
cW7scc3rPmDXpYR6APqPBRHlcbenfHCt+oCkEWse8OQhMM56KODIVQq3
fejrfi1H )
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5. IANA Considerations
IANA is asked to assign resource record 44 to this resource record.
IANA is asked to assign resource record 45 to this resource record.
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6. Acknowledgments
People who pushed me to write this.
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Normative references
[1] Massey, D. and S. Rose, "Limiting the Scope of the KEY Resource
Record", ID internet-draft (draft-ietf-dnsext-restrict-key-for-
dnssec-02) (normative), March 2002.
Record (RR)", RFC 3445, December 2002.
[2] Mockapetris, P., "Domain names - concepts and facilities", STD
13, RFC 1034, November 1987.
@ -255,16 +516,19 @@ Normative references
[3] Mockapetris, P., "Domain names - implementation and
specification", STD 13, RFC 1035, November 1987.
[4] Thomson, S. and C. Huitema, "DNS Extensions to support IP
[4] Hinden, R. and S. Deering, "IP Version 6 Addressing
Architecture", RFC 1884, December 1995.
[5] Thomson, S. and C. Huitema, "DNS Extensions to support IP
version 6", RFC 1886, December 1995.
[5] Eastlake, D., "Domain Name System Security Extensions", RFC
[6] Eastlake, D., "Domain Name System Security Extensions", RFC
2535, March 1999.
[6] Eastlake, D., "DSA KEYs and SIGs in the Domain Name System
[7] Eastlake, D., "DSA KEYs and SIGs in the Domain Name System
(DNS)", RFC 2536, March 1999.
[7] Eastlake, D., "RSA/SHA-1 SIGs and RSA KEYs in the Domain Name
[8] Eastlake, D., "RSA/SHA-1 SIGs and RSA KEYs in the Domain Name
System (DNS)", RFC 3110, May 2001.
@ -276,16 +540,27 @@ Author's Address
Ottawa, ON K1Z 5V7
CA
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EMail: mcr@sandelman.ottawa.on.ca
URI: http://www.sandelman.ottawa.on.ca/
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Full Copyright Statement
Copyright (C) The Internet Society (2003). All Rights Reserved.
@ -335,5 +610,7 @@ Acknowledgement
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