Download Advances in Cryptology - CRYPTO 2009: 29th Annual by Nadia Heninger, Hovav Shacham (auth.), Shai Halevi (eds.) PDF

By Nadia Heninger, Hovav Shacham (auth.), Shai Halevi (eds.)

This booklet constitutes the refereed complaints of the twenty ninth Annual overseas Cryptology convention, CRYPTO 2009, held in Santa Barbara, CA, united states in August 2009.

The 38 revised complete papers awarded have been conscientiously reviewed and chosen from 213 submissions. Addressing all present foundational, theoretical and learn features of cryptology, cryptography, and cryptanalysis in addition to complex purposes, the papers are prepared in topical sections on key leakage, hash-function cryptanalysis, privateness and anonymity, interactive proofs and zero-knowledge, block-cipher cryptanalysis, modes of operation, elliptic curves, cryptographic hardness, merkle puzzles, cryptography within the actual international, assaults on signature schemes, mystery sharing and safe computation, cryptography and game-theory, cryptography and lattices, identity-based encryption and cryptographers’ toolbox.

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Extra resources for Advances in Cryptology - CRYPTO 2009: 29th Annual International Cryptology Conference, Santa Barbara, CA, USA, August 16-20, 2009. Proceedings

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In Section 4 we present our generic construction from hash proof systems, and provide a simple and efficient instantiation. In Section 5 we present our two proposals that are resilient to any key leakage of L(1 − o(1)) bits, and provide a comparison between them. In Section 6 we present several generalizations of the framework considered in this paper that are satisfied by our schemes. Due to space limitations we refer the reader to [28] for our results in the setting of chosen-ciphertext security and weak key-leakage attacks.

Note that the adversary is not allowed to access the leakage oracle after the challenge phase. This restriction is necessary: the adversary can clearly encode the decryption algorithm, the challenge ciphertext, and the two messages M0 and M1 into a function that outputs the bit b. It will be very interesting to find an appropriate definition that allows a certain form of challenge-dependent leakage. Adaptivity. As pointed out by Akavia et al. 1 is in fact equivalent to a definition in which the adversary queries the leakage oracle only once.

Public-key cryptosystems resilient to key leakage. Cryptology ePrint Archive, Report 2009/105 (2009) 29. : Public-key cryptosystems provably secure against chosen ciphertext attacks. In: STOC, pp. 427–437 (1990) 30. : A block cipher based pseudo random number generator secure against side-channel key recovery. In: ASIACCS, pp. 56–65 (2008) 31. : A leakage-resilient mode of operation. In: EUROCRYPT, pp. 462–482 (2009) 32. : On lattices, learning with errors, random linear codes, and cryptography.

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