Cart (Loading....) | Create Account
Close category search window
 

ELK, a new protocol for efficient large-group key distribution

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Penrig, A. ; California Univ., Berkeley, CA, USA ; Song, D. ; Tygar, J.D.

Secure media broadcast over the Internet poses unique security challenges. One problem is access control to a large number of subscribers in a public broadcast. A common solution is to encrypt the broadcast data and to disclose the decryption key to legitimate receivers only. However, how do we securely and efficiently establish a shared secret among the legitimate receivers? And most importantly, how can we efficiently update the group key securely if receivers join or leave? How can we provide reliability for key update messages in a way that scales up to large groups? Recent research makes substantial progress to address these challenges. Current schemes feature efficient key update mechanisms assuming that the key updates are communicated reliably to the receivers. In practice, however the principal impediment to achieve a scalable system is to distribute the key updates reliably to all receivers. We have designed and implemented ELK, a novel key distribution protocol, to address these challenges with the following features: ELK features perfectly reliable, super-efficient member joins; ELK uses smaller key update messages than previous protocols; ELK features a mechanism that allows short hint messages to be used for key recovery allowing a tradeoff of communication overhead with member computation; ELK proposes to append a small amount of key update information to data packets, such that the majority of receivers can recover from lost key update messages; and ELK allows to trade off security with communication overhead

Published in:

Security and Privacy, 2001. S&P 2001. Proceedings. 2001 IEEE Symposium on

Date of Conference:

2001

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.