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 : TESLA: Multicast Source Authentication Transform Introduction
Author(s) : A. Perrig, et al.
Filename : draft-ietf-msec-tesla-intro-04.txt
Pages : 24
Date : 2004-12-8
This document introduces TESLA, short for Timed Efficient Stream
Loss-tolerant Authentication. TESLA allows all receivers to check the
integrity and authenticate the source of each packet in multicast or
broadcast data streams. TESLA requires no trust between receivers;
uses low cost operations per packet at both sender and receiver; can
tolerate any level of loss without retransmissions; and requires no
per-receiver state at the sender. TESLA can protect receivers against
denial of service attacks in certain circumstances. Each receiver
must be loosely time synchronized with the source in order to verify
messages, but otherwise receivers need send no messages. TESLA alone
cannot support non-repudiation of the data source to third parties.
This informational document is intended to assist in writing
standardizable and secure specifications for protocols based on TESLA
in different contexts.
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