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Improved Attack on the Cellular Authentication and Voice Encryption Algorithm (CAVE)

Gauravaram, Praveen S. & Millan, William L. (2004) Improved Attack on the Cellular Authentication and Voice Encryption Algorithm (CAVE). In International Workshop on Cryptographic Algorithms and their Uses, July, 2004, Gold Coast, Australia.

Abstract

We present new cryptanalysis of the Telecommunications hash algorithm known as Cellular Authentication and Voice Encryption Algorithm (CAVE). The previous guess-and-determine style reconstruction attack requires $2^{91}$ (resp. $2^{93}$) evaluations of CAVE-4 (resp. CAVE-8) to find a single valid pre-image (one which satisfies the input redundancy). Here we present a new attack that finds emph{all} valid pre-images with effort equivalent to around $2^{72}$ evaluations of the algorithm for both CAVE-4 and CAVE-8.

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567 since deposited on 19 Jul 2006
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ID Code: 4701
Item Type: Conference Paper
Additional URLs:
Keywords: Cryptanalysis, cryptographic hash functions, CAVE
ISBN: 1741070643
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > OTHER INFORMATION AND COMPUTING SCIENCES (089900)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DATA FORMAT (080400) > Data Encryption (080402)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2004 (please consult author)
Deposited On: 19 Jul 2006
Last Modified: 29 Feb 2012 23:07

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