Name: draft-ietf-msec-tesla-intro-04
Title: TESLA: Multicast Source Authentication Transform Introduction
State: Pending
Authors: Adrian Perrig, Ran Canetti, Dawn Song, Doug Tygar, Bob Briscoe
Group: Multicast Security (msec)
Date: 2004-12-08
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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