Sommaire

  • Cet exposé a été présenté le 20 mai 2011.

Description

  • Orateur

    Martin Hell - Lunds University

Feedback with carry shift registers (FCSRs) can be seen as an alternative to LFSRs in stream cipher designs. Since the state is nonlinearly updated, the stream cipher +can be made more resistant to certain attacks than if LFSRs are used. In this talk I will give an overview of FCSR-based stream ciphers and discuss potential +weaknesses. One particular weakness has been exploited to mount efficient attacks on several constructions. Attacks will be presented in detail on the stream ciphers +FCSR-H and X-FCSR-256.

Prochains exposés

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    • 06 juin 2025 (13:45 - 14:45)

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