A New Internet-Draft is available from the on-line Internet-Drafts
directories.
Title : Secure IPv6 Address Proxying using Multi-Key Cryptographically Generated Addresses (MCGAs)
Author(s) : J. Kempf
Filename : draft-kempf-cgaext-ringsig-ndproxy-00.txt
Pages : 18
Date : 2007-8-6
RFC 3971 and 3972 (SEND) define a protocol for securing
resolution of a statelessly autoconfigured IPv6 address to a
link address as defined by IPv6 Neighbor Discovery. SEND does
this by requiring the autoconfigured addresses to be
cryptographically generated by the host from an RSA public
key. However, one drawback of SEND is that such addresses
cannot be securely proxied. Proxy Neighbor Discovery is
important for Mobile IPv6 and in certain other cases. In this
document, we describe an extension of SEND to addresses that
are cryptographically generated using multiple public keys,
called multi-key CGAs. Neighbor Discovery messages for multi-
key CGAs are signed with an RSA ring signature, a type of
signature that can be generated using the private key of any
node from a group of nodes but which requires the public keys
of all group members to verify. Multi-key CGAs can be securely
proxied by all nodes that contribute keys to the address. The
advantage of multi-key CGAs over other techniques of secure
address proxying, such as trusting the router or using an
attribute certificate, is that it preserves location privacy.
A receiver cannot determine from the IPv6 address, ring
signature, or cryptographic parameters whether the node or the
proxy is defending the address, and hence whether the node is
on or off the link.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-kempf-cgaext-ringsig-ndproxy-00.txt
To remove yourself from the I-D Announcement list, send a message to
i-d-announce-request@ietf.org with the word unsubscribe in the body of
the message.
You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce
to change your subscription settings.
Internet-Drafts are also available by anonymous FTP. Login with the
username "anonymous" and a password of your e-mail address. After
logging in, type "cd internet-drafts" and then
"get draft-kempf-cgaext-ringsig-ndproxy-00.txt".
A list of Internet-Drafts directories can be found in
http://www.ietf.org/shadow.html
or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
Internet-Drafts can also be obtained by e-mail.
Send a message to:
mailserv@ietf.org.
In the body type:
"FILE /internet-drafts/draft-kempf-cgaext-ringsig-ndproxy-00.txt".
NOTE: The mail server at ietf.org can return the document in
MIME-encoded form by using the "mpack" utility. To use this
feature, insert the command "ENCODING mime" before the "FILE"
command. To decode the response(s), you will need "munpack" or
a MIME-compliant mail reader. Different MIME-compliant mail readers
exhibit different behavior, especially when dealing with
"multipart" MIME messages (i.e. documents which have been split
up into multiple messages), so check your local documentation on
how to manipulate these messages.
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the
Internet-Draft.
- <ftp://ftp.ietf.org/internet-drafts/draft-kempf-cgaext-ringsig-ndproxy-00.txt>
-
_______________________________________________
I-D-Announce@ietf.org
https://www1.ietf.org/mailman/listinfo/i-d-announce
