Cryptology ePrint Archive: Report 2005/234

LILI-II is not Broken

William Millan and Ed Dawson

Abstract: In this note we point out that a recently published attack on the LILI-II stream cipher does not do better than generic time-memory tradeoff techniques (which generalise exhaustive search and apply to any 128-bit key cipher). Thus we assert that LILI-II remains unbroken.

Category / Keywords: secret-key cryptography / stream ciphers, LILI-II, cryptanalysis, TMTO attacks

Publication Info: unpublished

Date: received 14 Jul 2005

Contact author: millan at isrc qut edu au

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Version: 20050720:073813 (All versions of this report)

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