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Chapitre D'ouvrage Année : 2022

Broadcast Encryption and Traitor Tracing

Résumé

Broadcast encryption and revocation schemes can be covered by more general primitives such as attribute-based encryption. However, when applying a general framework to a concrete primitive, this often results in impractical schemes. This chapter talks about recent advancements of this approach. A multi-receiver encryption scheme with the ability to trace traitors is called a traitor tracing (TT). The chapter presents an overview of the different techniques for designing broadcast encryption and TT. Combinatorial broadcast encryption schemes are mainly based on a tree structure or on a fingerprinting code. Tree-based schemes support revocation but have limited capacity dealing with tracing traitors, while code-based ones provide traceability but very few support revocation. Fingerprinting with collusion-secure codes allows one to identify a digital document among several copies of it by embedding a fingerprint.
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Dates et versions

hal-04283588 , version 1 (13-11-2023)

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Citer

Duong Hieu Phan. Broadcast Encryption and Traitor Tracing. Asymmetric Cryptography: Primitives and Protocols, 1, Wiley, 2022, 9781394188369. ⟨10.1002/9781394188369.ch6⟩. ⟨hal-04283588⟩
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