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I-D ACTION:draft-mcgrew-ipsec-scesp-01.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.


	Title		: The Stream Cipher Encapsulating Security Payload
	Author(s)	: D. McGrew, S. Fluhrer, M. Peyravian
	Filename	: draft-mcgrew-ipsec-scesp-01.txt
	Pages		: 9
	Date		: 21-Jul-00
	
This document specifies the use of an additive stream cipher as a
confidentiality mechanism within the context of the IPSec
Encapsulating Security Payload (ESP) defined by Kent and Atkinson
[KA98b].  This transform fits into and extends the
framework of ESP CBC-Mode Cipher Algorithms of Pereira and Adams
[PA98], and can be used in conjunction with any ESP Authentication
Algorithm.  The advantages of the Stream Cipher ESP (SC/ESP)
transform are twofold: it enables the use of faster ciphers, and
the expansion of stream cipher ESP protected packets is less than
that of CBC-Mode ESP protected packets.  A detailed security
analysis of additive encryption of Internet traffic and SC/ESP is
being published separately [MF00].

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