Abstract
LEX is a stream cipher based on the round transformation of the AES block cipher, and it was selected for the final phase evaluation of the eSTREAM project. LEX is 2.5 times faster than AES both in software and in hardware. In this paper, we present a differential fault attack on LEX. The fault model assumes that the attacker is able to flip a random bit of the internal state of the cipher but cannot control the exact location of the induced fault. Our attack requires 40 faults, and recovers the secret key with 216 operations.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Biham, E., Shamir, A.: Differential Cryptanalysis of the Data Encryption Standard. Springer, Heidelberg (1993)
Biham, E., Shamir, A.: Differential Fault Analysis of Secret Key Cryptosystems. In: Kaliski Jr., B.S. (ed.) CRYPTO 1997. LNCS, vol. 1294, pp. 513–525. Springer, Heidelberg (1997)
Biryukov, A.: A New 128-bit Key Stream Cipher LEX. ECRYPT stream cipher project report 2005/013 (2005), http://www.ecrypt.eu.org/stream
Biryukov, A.: The Design of a Stream Cipher LEX. In: Biham, E., Youssef, A.M. (eds.) SAC 2006. LNCS, vol. 4356, pp. 67–75. Springer, Heidelberg (2007)
Biryukov, A.: The Tweak for LEX-128, LEX-192, LEX-256. ECRYPT stream cipher project report 2006/037 (2006), http://www.ecrypt.eu.org/stream
Boneh, D., DeMillo, R.A., Lipton, R.J.: On the Importance of Checking Cryptographic Protocols for Faults (Extended Abstract). In: Fumy, W. (ed.) EUROCRYPT 1997. LNCS, vol. 1233, pp. 37–51. Springer, Heidelberg (1997)
Daemen, J., Rijmen, V.: The Design of Rijndael: AES - The Advanced Encryption Standard. Springer, Heidelberg (2002)
Dunkelman, O., Keller, N.: A New Attack on the LEX Stream Cipher. In: Pieprzyk, J. (ed.) ASIACRYPT 2008. LNCS, vol. 5350, pp. 539–556. Springer, Heidelberg (2008)
Englund, H., Hell, M., Johansson, T.: A Note on Distinguishing Attacks. In: Preproceedings of State of the Art of Stream Ciphers workshop (SASC 2007), Bochum, Germany, pp. 73–78 (2007)
Hoch, J.J., Shamir, A.: Fault Analysis of Stream Ciphers. In: Joye, M., Quisquater, J.-J. (eds.) CHES 2004. LNCS, vol. 3156, pp. 240–253. Springer, Heidelberg (2004)
Kocher, P.C.: Timing Attacks on Implementations of Diffie-Hellman. In: Koblitz, N. (ed.) CRYPTO 1996. LNCS, vol. 1109, pp. 104–113. Springer, Heidelberg (1996)
Kocher, P.C., Jaffe, J., Jun, B.: Differential Power Analysis. In: Wiener, M. J. (ed.) CRYPTO 1999. LNCS, vol. 1666, pp. 388–397. Springer, Heidelberg (1999)
Matsui, M.: Linear Cryptanalysis Method for DES Cipher. In: Helleseth, T. (ed.) EUROCRYPT 1993. LNCS, vol. 765, pp. 386–397. Springer, Heidelberg (1994)
Mondal, M., Mukhopadhyay, D.: Related Key Cryptanalysis of the LEX Stream Cipher (2010), http://eprint.iacr.org/2010/011
Wu, H., Preneel, B.: Resynchronization Attacks on WG and LEX. In: Robshaw, M.J.B. (ed.) FSE 2006. LNCS, vol. 4047, pp. 422–432. Springer, Heidelberg (2006)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Huang, J., Susilo, W., Seberry, J. (2010). Differential Fault Analysis of LEX. In: Garay, J.A., De Prisco, R. (eds) Security and Cryptography for Networks. SCN 2010. Lecture Notes in Computer Science, vol 6280. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15317-4_5
Download citation
DOI: https://doi.org/10.1007/978-3-642-15317-4_5
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-15316-7
Online ISBN: 978-3-642-15317-4
eBook Packages: Computer ScienceComputer Science (R0)