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Wireless broadcast encryption based on smart cards

journal contribution
posted on 2010-01-01, 00:00 authored by X Yi, Lynn BattenLynn Batten
Wireless broadcasting is an efficient way to broadcast data to a large number of users. Some commercial applications of wireless broadcasting, such as satellite pay-TV, desire that only those users who have paid for the service can retrieve broadcast data. This is often achieved by broadcast encryption, which allows a station securely to broadcast data to a dynamically changing set of privileged users through open air. Most existing broadcast encryption schemes can only revoke a pre-specified number of users before system re-setup or require high computation, communication and storage overheads in receivers. In this paper, we propose a new broadcast encryption scheme based on smart cards. In our scheme, smart cards are used to prevent users from leaking secret keys. Additionally, once an illegally cloned smart card is captured, our scheme also allows tracing of the compromised smart card by which illegal smart cards are cloned, and can then revoke all cloned smart cards. The new features of our scheme include minimal computation needs of only a few modular multiplications in the smart card, and the capability to revoke up to any number of users in one revocation. Furthermore, our scheme is secure against both passive and active attacks and has better performance than other schemes.

History

Journal

Wireless networks

Volume

16

Issue

1

Pagination

153 - 165

Publisher

Springer

Location

New York, N.Y.

ISSN

1022-0038

eISSN

1572-8196

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2008, Springer Science+Business Media