I-D ACTION:draft-ietf-btns-prob-and-applic-03.txt

A New Internet-Draft is available from the on-line
Internet-Drafts directories.
This draft is a work item of the Better-Than-Nothing
Security Working Group of the IETF.

	Title		: Problem and Applicability Statement for Better
Than Nothing Security (BTNS)
	Author(s)	: J. Touch, et al.
	Filename	: draft-ietf-btns-prob-and-applic-03.txt
	Pages		: 24
	Date		: 2006-6-6
	
The Internet network security protocol suite, IPsec,
consisting of 
IKE, ESP, and AH, generally requires authentication via IKE
of 
network layer entities to bootstrap security. This
authentication can 
be based on mechanisms such as pre-shared symmetric keys, 
certificates and associated asymmetric keys, or the use of
Kerberos.  
The need to deploy authentication information and its
associated 
identities to network layer entities can be a significant
obstacle to 
use of network security.  This document explains the
rationale for 
extending the Internet network security suite to enable use
of IPsec 
security mechanisms without full IKE authentication. These
extensions 
are intended to protect communication in a "better
than nothing" 
(BTNS) fashion. The extensions may be used on their own
(Stand Alone 
BTNS, or SAB), or may be useful in providing network layer
security 
that can be authenticated by higher layers in the protocol
stack, 
called Channel Bound BTNS (CBB). This document also explains

situations in which use of SAB and CBB extensions are
appropriate.

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aft-ietf-btns-prob-and-applic-03.txt

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