Cryptanalysis of a pay-as-you-watch system

Authors:
Marc Joye
Affiliations:
Gemplus S.A., Card Security Group, La Vigie, Avenue du Jujubier, ZI Athélia IV, 13705 La Ciotat Cedex, France
Venue:
Information Processing Letters
Year:
2003

Citing 2
Cited 0

An Efficient Off-line Electronic Cash System Based On The Representation Problem.

An Efficient Off-line Electronic Cash System Based On The Representation Problem.
MICROCAST: smart card based (micro)pay-per-view for multicast services

CARDIS'02 Proceedings of the 5th conference on Smart Card Research and Advanced Application Conference - Volume 5

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Abstract

In this paper, we exhibit security flaws in the MICROCAST pay-as-you-watch system. From the sole knowledge of public parameters, we show how any intruder is able to forge a coin and so to freely get access to the service.