Read e-book online Advances in Cryptology – CRYPTO 2014: 34th Annual Cryptology PDF

By Juan A. Garay, Rosario Gennaro

The volume-set, LNCS 8616 and LNCS 8617, constitutes the refereed complaints of the thirty fourth Annual foreign Cryptology convention, CRYPTO 2014, held in Santa Barbara, CA, united states, in August 2014.

The 60 revised complete papers awarded in LNCS 8616 and LNCS 8617 have been rigorously reviewed and chosen from 227 submissions. The papers are equipped in topical sections on symmetric encryption and PRFs; formal tools; hash features; teams and maps; lattices; uneven encryption and signatures; aspect channels and leakage resilience; obfuscation; FHE; quantum cryptography; foundations of hardness; number-theoretic hardness; information-theoretic defense; key alternate and safe verbal exchange; 0 wisdom; composable defense; safe computation - foundations; safe computation - implementations.

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Extra info for Advances in Cryptology – CRYPTO 2014: 34th Annual Cryptology Conference, Santa Barbara, CA, USA, August 17-21, 2014, Proceedings, Part I

Example text

We sometimes commit a slight abuse of language by saying that a chain “fits k ∗ ” instead of “fits τ ” when it is clear which transcript τ is intended. By means of emphasis, a chain which doesn’t (necessarily) fit the key of τ is said to be generic; thus all r-chains of τ are by definition generic. The rest of the proof in a nutshell. , ki∗ = kj∗ for some i = j) or transcripts with too many (long) fitting chains, where “too many” depends geometrically on the chain length r, as might be expected. When there are not too many long chains that fit the transcript’s key, indeed, we are in a position to apply the lemma of Chen and Steinberger [8] to show that the probability of obtaining the given transcript in the real world is not far off from the probability of obtaining the same transcript in the ideal world, as required by (4).

740, pp. 228–245. Springer, Heidelberg (1993) 12. : A Tweakable Enciphering Mode. In: Boneh, D. ) CRYPTO 2003. LNCS, vol. 2729, pp. 482–499. Springer, Heidelberg (2003) 13. : A Parallelizable Enciphering Mode. In: Okamoto, T. ) CT-RSA 2004. LNCS, vol. 2964, pp. 292–304. Springer, Heidelberg (2004) 14. : Encryption Modes with Almost Free Message Integrity. Journal of Cryptology 21(4), 547–578 (2008) 15. : Timing Attacks on Implementations of Diffie-Hellman, RSA, DSS, and Other Systems. In: Koblitz, N.

Let the subversion Π = (K, E, D) of Π be defined as above. Let U be a test that makes q queries to its Enc oracle. Then we can construct an adversary A such that Advdet (U ) ≤ q/2d + Advprf F (A ). Π,Π Adversary A makes q oracle queries and its running time is that of U . So again as long as the scheme uses a non-trivial amount of randomness, for example r ≥ 7 bits resulting in d ≥ 128, Theorem 3 implies that the subversion is undetectable. The proof makes crucial use of Lemma 1, which, letting D = {0, 1}r be the space of coins of E, implies that the statistical distance between the real and subverted ciphertexts is 2−d .

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