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Differential fault analysis of LEX

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conference contribution
posted on 2024-11-14, 09:03 authored by Jianyong Huang, Willy SusiloWilly Susilo, Jennifer SeberryJennifer Seberry
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.

History

Citation

Huang, J, Susilo, W and Seberry, J, Differential fault analysis of LEX, Proceedings of the Security and Cryptography for Networks 7th International Conference, SCN 2010, Amalfi, Italy, September 13-15, 2010.

Parent title

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Volume

6280 LNCS

Pagination

55-72

Language

English

RIS ID

34098

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