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.
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References
Babbage, S.: Improved “exhaustive search” attacks on stream ciphers. In: Babbage, S. (ed.) ECOS 1995 (European Convention on Security and Detection). IEE Conference Publication, vol. 408 (May 1995)
Biham, E.: How to decrypt or even substitute DES-encrypted messages in 228 steps. Information Processing Letters 84, 117–124 (2002)
Biryukov, A., Mukhopadhyay, S., Sarkar, P.: Improved Time-Memory Trade-offs with Multiple Data. In: Preneel, B., Tavares, S. (eds.) SAC 2005. LNCS, vol. 3897, pp. 110–127. Springer, Heidelberg (2006)
Biryukov, A., Shamir, A.: Cryptanalytic time/memory/data tradeoffs for stream ciphers. In: Okamoto, T. (ed.) ASIACRYPT 2000. LNCS, vol. 1976, pp. 1–13. Springer, Heidelberg (2000)
Biryukov, A., Wagner, D.: Slide attacks. In: Knudsen, L.R. (ed.) FSE 1999. LNCS, vol. 1636, pp. 245–259. Springer, Heidelberg (1999)
Courtois, N.T., Meier, W.: Algebraic attacks on stream ciphers with linear feedback. In: Biham, E. (ed.) Advances in Cryptology – EUROCRYPT 2003. LNCS, pp. 345–359. Springer, Heidelberg (2003)
Daemen, J., Rijmen, V.: The design of Rijndael: AES — The Advanced Encryption Standard. Springer, Heidelberg (2002)
eSTREAM, eSTREAM Optimized Code HOWTO (2005), http://www.ecrypt.eu.org/stream/perf/
Golic, J.D.: Cryptanalysis of alleged A5 stream cipher. In: Fumy, W. (ed.) EUROCRYPT 1997. LNCS, vol. 1233, pp. 239–255. Springer, Heidelberg (1997)
Hong, J., Sarkar, P.: Rediscovery of time memory tradeoffs (2005), http://eprint.iacr.org/2005/090
Wu, H., Preneel, B.: Attacking the IV Setup of Stream Cipher LEX. In: Robshaw, M.J.B. (ed.) FSE 2006. LNCS, vol. 4047. Springer, Heidelberg (2006)
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Biryukov, A. (2008). Design of a New Stream Cipher—LEX. In: Robshaw, M., Billet, O. (eds) New Stream Cipher Designs. Lecture Notes in Computer Science, vol 4986. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-68351-3_5
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DOI: https://doi.org/10.1007/978-3-540-68351-3_5
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-68350-6
Online ISBN: 978-3-540-68351-3
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