A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Securing IPv6 Neighbor Discovery Using Address Based
Keys (ABKs)
Author(s) : J. Kempf et al.
Filename : draft-kempf-abk-nd-00.txt
Pages : 17
Date : 2003-5-7
When an IPv6 node receives a Router Advertisement, how does it
know that the node which sent the advertisement is authorized to
announce that it routes the prefix? When an IPv6 node receives a
Neighbor Advertisement message, how does it know that the node
sending the message is, in fact, authorized to claim the binding?
The answer is, in the absence of a preconfigured IPsec security
association among the nodes on the link and the routers, they
don't. In this draft, a lightweight protocol is described for
securing the signaling involved in IPv6 Neighbor Discovery. The
protocol allows a node receiving a Router Advertisement or a
Neighbor Advertisement to have the confidence that the message was
authorized by the legitimate owner of the address or prefix being
advertised without requiring a preconfigured IPsec security
association. A certain degree of infrastructural support is
required, but not any more than is currently common for public
access IP networks. The protocol is based on some results in
identity based cryptosystems that allow a publicly known
identifier to function as a public key.
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