[AVT] I-D ACTION:draft-ietf-avt-srtp-04.txt

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

	Title		: The Secure Real Time Transport Protocol
	Author(s)	: M. Baugher, D. McGrew et al.
	Filename	: draft-ietf-avt-srtp-04.txt
	Pages		: 47
	Date		: 08-May-02
	
This document describes the Secure Real Time Transport Protocol   
(SRTP), a profile of the Real Time Transport Protocol (RTP), which 
can provide confidentiality, message authentication, and replay 
protection to the RTP/RTCP traffic. 
SRTP can achieve high throughput and low packet expansion. SRTP 
proves to be a suitable protection for heterogeneous environments, 
i.e., environments including both wired and wireless links. To get 
such features, default transforms are described, based on an 
additive stream cipher for encryption, a keyed-hash based function 
for message authentication, and an 'implicit' index for 
sequencing/synchronization based on the RTP sequence number for SRTP 
and an index number for Secure RTCP (SRTCP).

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