Download Advances in Cryptology – CRYPTO 2012: 32nd Annual Cryptology by Viet Tung Hoang, Ben Morris, Phillip Rogaway (auth.), PDF

By Viet Tung Hoang, Ben Morris, Phillip Rogaway (auth.), Reihaneh Safavi-Naini, Ran Canetti (eds.)

ISBN-10: 3642320082

ISBN-13: 9783642320088

This e-book constitutes the refereed complaints of the thirty second Annual overseas Cryptology convention, CRYPTO 2012, held in Santa Barbara, CA, united states, in August 2012. The forty eight revised complete papers awarded have been rigorously reviewed and chosen from 225 submissions. the amount additionally includes the abstracts of 2 invited talks. The papers are equipped in topical sections on symmetric cryptosystems, safe computation, attribute-based and useful encryption, proofs structures, protocols, hash capabilities, composable safety, privateness, leakage and side-channels, signatures, implementation research, black-box separation, cryptanalysis, quantum cryptography, and key encapsulation and one-way functions.

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Additional resources for Advances in Cryptology – CRYPTO 2012: 32nd Annual Cryptology Conference, Santa Barbara, CA, USA, August 19-23, 2012. Proceedings

Example text

The random-bits oracle, $, $ |M|+τ takes (N, A, M ) and returns (C, T ) ← {0, 1} . We define def $ GCM-EK Advpriv ⇒ 1] − Pr[A$ ⇒ 1], GCM[E,τ ] (A) = Pr[K ← K : A where the first probability is defined over the randomness of A and the choice of K, and the last is over the randomness of A and the random-bits oracle. We assume that A is nonce-respecting: A does not make two queries with the same nonce. For authenticity, we consider an adversary A that has access to GCM encryption and decryption oracles.

We say that F is a $ random function if F ← Rand(n), and write GCM[Rand(n), τ ] for GCM that uses F as EK . We write the corresponding encryption and decryption algorithms as GCM-EF and GCM-DF , respectively. 1 Breaking GCM Security Proofs Review of [27, Lemma 3], [27, Theorem 1], and [27, Theorem 2] In this section, we first review a lemma in [27] that was used to derive the provable security results on GCM. Consider GCM[Rand(n), τ ], GCM with EK being a random function F , and the privacy notion for it.

LNCS, vol. 6147, pp. 230–249. Springer, Heidelberg (2010) 26. : Hash Functions Based on Block Ciphers: A Synthetic Approach. R. ) CRYPTO 1993. LNCS, vol. 773, pp. 368–378. Springer, Heidelberg (1994) 27. : OCB: A Block-Cipher Mode of Operation for Efficient Authenticated Encryption. In: ACM Conference on Computer and Communication Security – CCS 2001, pp. 196–205. ACM Press (2001) 28. : Efficient Instantiations of Tweakable Blockciphers and Refinements to Modes OCB and PMAC. J. ) ASIACRYPT 2004. LNCS, vol.

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