A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the TCP Maintenance and Minor Extensions Working Group of the IETF.
Title : The TCP Authentication Option
Author(s) : J. Touch, et al.
Filename : draft-ietf-tcpm-tcp-auth-opt-03.txt
Pages : 40
Date : 2009-02-16
This document specifies the TCP Authentication Option (TCP-AO), which
obsoletes the TCP MD5 Signature option of RFC-2385 (TCP MD5). TCP-AO
specifies the use of stronger Message Authentication Codes (MACs),
protects against replays even for long-lived TCP connections, and
provides more details on the association of security with TCP
connections than TCP MD5. TCP-AO is compatible with either static
master key configuration or an external, out-of-band master key
management mechanism; in either case, TCP-AO also protects
connections when using the same master key across repeated instances
of a connection, using connection keys derived from the master key.
The result is intended to support current infrastructure uses of TCP
MD5, such as to protect long-lived connections (as used, e.g., in BGP
and LDP), and to support a larger set of MACs with minimal other
system and operational changes. TCP-AO uses its own option
identifier, even though used mutually exclusive of TCP MD5 on a given
TCP connection. TCP-AO supports IPv6, and is fully compatible with
the requirements for the replacement of TCP MD5.
A URL for this Internet-Draft is:
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