Timed Efficient Stream Loss-Tolerant Authentication (TESLA): Multicast Source Authentication Transform Introduction
Adrian Perrig, Dawn Xiaodong Song, Ran Canetti, J. D., Bob Briscoe · 2005
This document introduces Timed Efficient Stream Loss-tolerant Authentication (TESLA).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 do not have to send any messages.TESLA alone cannot support non-repudiation of the data source to third parties.