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Block and Stream Ciphers and the Creatures in Between

Author Alex Biryukov



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Alex Biryukov

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Alex Biryukov. Block and Stream Ciphers and the Creatures in Between. In Symmetric Cryptography. Dagstuhl Seminar Proceedings, Volume 7021, pp. 1-9, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2007)
https://doi.org/10.4230/DagSemProc.07021.5

Abstract

In this paper we define a notion of leak extraction from a block cipher. We demonstrate this new concept on an example of AES. A result is LEX: a simple AES-based stream cipher which is at least 2.5 times faster than AES both in software and in hardware.
Keywords
  • Stream ciphers
  • block ciphers

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