I-D ACTION:draft-ietf-msec-bootstrapping-tesla-02.txt

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

	Title		: Bootstrapping TESLA
	Author(s)	: S. Fries, H. Tschofenig
	Filename	: draft-ietf-msec-bootstrapping-tesla-02.txt
	Pages		: 18
	Date		: 2005-10-19

TESLA, the Timed Efficient Stream Loss-tolerant Authentication
   protocol is a protocol for providing source authentication in
   multicast scenarios.  TESLA is an efficient protocol with low
   communication and computation overhead, which scales to large numbers
   of receivers, and also tolerates packet loss.  TESLA is based on
   loose time synchronization between the sender and the receivers.
   Source authentication is realized in TESLA by using MAC chaining.
   The use of TESLA within the Secure Real-time Transport Protocol
   (SRTP) has been published targeting multicast authentication in
   scenarios, where SRTP is applied to protect the multimedia data.
   This solution assumes that TESLA parameters are made available by
   out-of-band mechanisms.

   This document specifies MIKEY payloads for bootstrapping TESLA for
   source authentication of secure group communications using SRTP.
   TESLA may be bootstrapped using one of the MIKEY key management
   approaches, e.g., by using a digitally signed MIKEY message sent via
   unicast, multicast or broadcast.

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