RFC 4082

Timed Efficient Stream Loss-Tolerant Authentication (TESLA): Multicast Source Authentication Transform Introduction, June 2005

Canonical URL:
https://www.rfc-editor.org/rfc/rfc4082.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Authors:
A. Perrig
D. Song
R. Canetti
J. D. Tygar
B. Briscoe
Stream:
IETF
Source:
msec (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC4082

Discuss this RFC: Send questions or comments to msec@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

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. This informational document is intended to assist in writing standardizable and secure specifications for protocols based on TESLA in different contexts. This memo provides information for the Internet community.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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