Juan A. Garay, Rosario Gennaro's Advances in Cryptology – CRYPTO 2014: 34th Annual Cryptology PDF

By Juan A. Garay, Rosario Gennaro

ISBN-10: 3662443708

ISBN-13: 9783662443705

ISBN-10: 3662443716

ISBN-13: 9783662443712

The volume-set, LNCS 8616 and LNCS 8617, constitutes the refereed lawsuits 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 offered in LNCS 8616 and LNCS 8617 have been conscientiously reviewed and chosen from 227 submissions. The papers are geared up in topical sections on symmetric encryption and PRFs; formal equipment; hash features; teams and maps; lattices; uneven encryption and signatures; facet channels and leakage resilience; obfuscation; FHE; quantum cryptography; foundations of hardness; number-theoretic hardness; information-theoretic safeguard; key alternate and safe conversation; 0 wisdom; composable defense; safe computation - foundations; safe computation - implementations.

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

Example text

Thus either − (ki , xi−1 , xi ) ∈ Q+ E or (ki , xi−1 , xi ) ∈ QE for h + 1 ≤ i ≤ hν+ r. Let ν’s signature sig be the string sig ν ∈ {+, −}r such that (ki , xi−1 , xi ) ∈ QE i for h+1 ≤ i ≤ h+r. 0 r We start by fixing a signature sig ∈ {+, −} and by upper bounding the number of r-chains ν of τ starting at position h such that sig ν = sig 0 . , that the number of −’s is at least r/2 . If ν = (h, xh , kh+1 , xh+1 , . . , kh+r , xh+r ) is a ν-chain with signature sig 0 then there are, firstly, at most min{q, N } choices for xh given that (kh+1 , xh , xh+1 ) ∈ QE .

For a blockcipher E and an integer ≥ 1 we define the -cascade of E, written E ( ) , by equation (1). We note that E ( ) is a blockcipher of key space {0, 1} κ and of message space {0, 1}n. Ideal Ciphers. A blockcipher E : {0, 1}κ × {0, 1}n → {0, 1}n which is sampled uniformly at random from the space of all blockciphers of key space {0, 1}κ and of message space {0, 1}n is called an ideal cipher. In this case Ek is a random independent permutation of {0, 1}n for each k ∈ {0, 1}κ. Security Game. Let , κ and n be given.

Canetti, R. ) CRYPTO 2012. LNCS, vol. 7417, pp. 719–740. Springer, Heidelberg (2012) 13. : On the power of cascade ciphers. ACM Transactions on Computer Systems 3(2), 108–116 (1985) 14. : A Construction of a Cipher From a Single Pseudorandom Permutation. L. ) ASIACRYPT 1991. LNCS, vol. 739, pp. 210–224. Springer, Heidelberg (1993) 15. FIPS46-3: Data Encryption Standard. National Institute of Standards and Technology, withdrawn (1999) 16. : Plain versus Randomized Cascading-Based Key-Length Extension for Block Ciphers.

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Advances in Cryptology – CRYPTO 2014: 34th Annual Cryptology Conference, Santa Barbara, CA, USA, August 17-21, 2014, Proceedings, Part I by Juan A. Garay, Rosario Gennaro

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