Cryptology ePrint Archive: Report 2007/362

Statistical Testing for Disk Encryption Modes of Operations

Mohamed Abo El-Fotouh and Klaus Diepold

Abstract: In this paper we present a group of statistical tests that explore the random behavior of encryption modes of operations, when used in disk encryption applications. The results of these tests help us to better understand how these modes work. We tested ten modes of operations with the presented statistical tests, five of the narrow-block type and the other five of the wide-block type. Our analysis shows some weakness in some of these modes.

Category / Keywords: secret-key cryptography / Disk encryption, modes of operations, randomness, AES.

Date: received 12 Sep 2007, last revised 14 Dec 2007

Contact author: mohamed at tum de

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Version: 20071214:101454 (All versions of this report)

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