Scalable public-key tracing and revoking

11 years 2 months ago
Scalable public-key tracing and revoking
Traitor Tracing Schemes constitute a very useful tool against piracy in the context of digital content broadcast. In such multi-recipient encryption schemes, each decryption key is fingerprinted and when a pirate decoder is discovered, the authorities can trace the identities of the users that contributed in its construction (called traitors). Public-key traitor tracing schemes allow for a multitude of nontrusted content providers using the same set of keys, which makes the scheme “server-side scalable.” To make such schemes also “client-side scalable,” i.e. long lived and usable for a large population of subscribers that changes dynamically over time, it is crucial to implement efficient Add-user and Remove-user operations. Previous work on public-key traitor tracing did not address this dynamic scenario thoroughly, and there is no efficient scalable public key traitor tracing scheme that allows an increasing number of Add-user and Remove-user operations. To address these iss...
Yevgeniy Dodis, Nelly Fazio, Aggelos Kiayias, Moti
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where PODC
Authors Yevgeniy Dodis, Nelly Fazio, Aggelos Kiayias, Moti Yung
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