Titlebook: Information Security and Privacy; 15th Australasian Co Ron Steinfeld,Philip Hawkes Conference proceedings 2010 Springer-Verlag Berlin Heide

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On Multidimensional Linear Cryptanalysisn . statistically independent approximations. Started by Hermelin . in ACISP’08, a different approach was taken by studying .-dimensional combined approximations from . base approximations. Known as multidimensional linear cryptanalysis, the requirement for statistical independence is relaxed. In th

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Second-Preimage Analysis of Reduced SHA-1 why the widely used SHA-1 continues to be recommended in all applications except digital signatures after 2010. Recent work on preimage and second preimage attacks on reduced SHA-1 succeeding up to 48 out of 80 steps (with results barely below the 2. time complexity of brute-force search) suggest t

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Adaptive and Composable Non-committing Encryptionsthe universally composable (UC) framework. We show that the proposed non-committing scheme realizes the UC-security in the presence of adaptive adversary assuming that the decisional Diffie-Hellman problem is hard.

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Strong Knowledge Extractors for Public-Key Encryption Schemestroduce two extractor-based properties that allow us to gain insight into the design of such schemes and to go beyond known feasibility results in this area. We formalise . and . and prove their suitability in realising these goals. Strong plaintext awareness imposes that it is infeasible to constru

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