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, C. Gentry
Filename : draft-kempf-mobopts-ringsig-ndproxy-02.txt
Pages : 17
Date : 2005-8-23
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-mobopts-ringsig-ndproxy-02.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-mobopts-ringsig-ndproxy-02.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-mobopts-ringsig-ndproxy-02.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-mobopts-ringsig-ndproxy-02.txt>
-
_______________________________________________
I-D-Announce@ietf.org
https://www1.ietf.org/mailman/listinfo/i-d-announce
