Download Advances in Information and Computer Security: 4th by Bart Preneel (auth.), Tsuyoshi Takagi, Masahiro Mambo (eds.) PDF

By Bart Preneel (auth.), Tsuyoshi Takagi, Masahiro Mambo (eds.)

This booklet constitutes the refereed lawsuits of the 4th foreign Workshop on protection, IWSEC 2009, held in Toyama, Japan, in October 2009.

The thirteen revised complete papers offered including 1 invited speak have been rigorously reviewed and chosen from forty six submissions. The papers are geared up in topical sections on block cipher, cryptographic protocols, contents defense and intrusion detection, in addition to authentication.

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Extra resources for Advances in Information and Computer Security: 4th International Workshop on Security, IWSEC 2009 Toyama, Japan, October 28-30, 2009 Proceedings

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Readers may refer to [5] for more details. 3 Basic Notions for IBA In this section, we introduce and establish notions for IBA by modifying and extending those used in [3]. For a block cipher structure S, let the input and output of one round be (X1 , X2 , . . , Xn ) and (Y1 , Y2 , . . , Yn ) respectively. Throughout this paper, we consider S whose round function F is bijective. 1 J. Choy and H. Yap Basic Definitions and Operations Definition 1. [3] The n × n Encryption Characteristic Matrix E = (Eij )n×n and n×n Decryption Characteristic Matrix D = (Dij )n×n are defined as follows.

Acknowledgments It is a great pleasure to thank Hongjun Wu for valuable discussions. We also thank the anonymous reviewers of IWSEC2009 for their constructive comments on our work. References 1. : How far can we go beyond linear cryptanalysis? J. ) ASIACRYPT 2004. LNCS, vol. 3329, pp.

31}, x ∈ {0, . . , 232 − 1}. x ≪ y: ((x y) ⊕ (x (32 − y)), where y ∈ {0, . . , 31}, x ∈ {0, . . , 232 − 1}. PRBG denotes the pseudorandom bit generation algorithm of the cipher. , the (i + 1)-th iteration of the PRBG) is denoted by si . The terms si(j) , (h1 (x))j , (h2 (x))j , ri(j) and (Q[r])j denote the j-th bits (j = 0 for the least significant bit) of si , h1 (x), h2 (x), ri and Q[r], respectively. The term word denotes a 32-bit integer. If x is a word, then x(i) denotes the i-th byte of x, where x(0) is the least significant byte and x(3) is the most significant byte.

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