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I-D ACTION:draft-ietf-rmt-pi-track-security-00.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Reliable Multicast Transport Working Group of the IETF.

	Title		: Security Requirements For TRACK
	Author(s)	: T. Hardjono, B. Whetten
	Filename	: draft-ietf-rmt-pi-track-security-00.txt
	Pages		: 
	Date		: 21-Jul-00
	
This document discusses the security issues within the TRee-based 
ACKnowledgement (TRACK) reliable multicast protocol instantiation, and 
identifies some constraints and requirements for security provisions for 
this protocol.  Based on the constraints and requirements, the document 
proposes a separation of data packet confidentiality and authentication, 
from transport layer protection.  It proposes that TRACK be primarily 
concerned with group authentication of control and data packets, to 
protect against attacks on the transport infrastructure.  It proposes 
that data confidentiality and source authentication be provided 
separately from this low level group authentication, ideally at the 
application level.  We show that this is particularly important for 
TRACK, because of the requirement that the interior control nodes only 
OPTIONALLY have access to the data packet payload.

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