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-00.txt
Pages : 20
Date : 2005-7-5
The Internet network security protocol suite, IPsec, consisting of
IKE, ESP, and AH, currently requires authentication via IKE of
network layer entities to bootstrap security. This authentication can
be based on mechanisms such as pre-shared symmetric keys, pre-shared
certificates and associated asymmetric keys, or the use of Kerberos.
The need for authentication information and its associated identities
between network layer entities can be a significant obstacle to
deploying network security. This document explains the rationale for
extending to the Internet network security suite to enable use of
IPsec security mechanisms without full IKE authentication. These
extensions are intended to protect communication ^better than
nothing^ (BTNS) on their own (Stand Alone BTNS, or SAB), and 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 and can achieve their intended
benefit.
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