Download e-book for iPad: Advances in Cryptology – CRYPTO 2005: 25th Annual by Xiaoyun Wang, Hongbo Yu, Yiqun Lisa Yin (auth.), Victor

By Xiaoyun Wang, Hongbo Yu, Yiqun Lisa Yin (auth.), Victor Shoup (eds.)

ISBN-10: 3540281142

ISBN-13: 9783540281146

This publication constitutes the refereed court cases of the twenty fifth Annual foreign Cryptology convention, CRYPTO 2005, held in Santa Barbara, California, united states in August 2005.

The 33 revised complete papers provided have been rigorously reviewed and chosen from 178 submissions. The papers are geared up in topical sections on hash features, thought, cryptanalysis, 0 wisdom, anonymity, privateness, broadcast encryption, human-oriented cryptography, mystery sharing, multi-party computation, random oracles, info theoretic protection, and primitives and protocols.

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Additional info for Advances in Cryptology – CRYPTO 2005: 25th Annual International Cryptology Conference, Santa Barbara, California, USA, August 14-18, 2005. Proceedings

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Originally intended for discouraging spam, the concept has wide applicability as a method for controlling denial of service attacks. Dwork, Goldberg, and Naor proposed a specific memory-bound function for this purpose and proved an asymptotically tight amortized lower bound on the number of memory accesses any polynomial time bounded adversary must make. Their function requires a large random table which, crucially, cannot be compressed. We answer an open question of Dwork et al. by designing a compact representation for the table.

Connection fees, i/o-boundedness, and the possibility of transmission errors suggest that five minutes of local computation, to be done once and for all (at least, until the next update), is preferable to five minutes of connect time. Thus a compact representation of T allows for easy distribution and frequent updates. These considerations lead to the question of whether there might be a succinct representation of T . In other words, is it possible to distribute a short program for constructing T while still maintaining the lower bound on the amortized number of memory accesses?

These differences are m0 [30], m1 [−5, 6, −30, 31], m2[−1, 30, −31]. 2. Consecutive disturbances in the same bit position in the first 16 steps. There are two such sequences: (1) x1,2 , x2,2 , x3,2 and (2) x8,2 , x9,2 , x10,2 . It is more instructive to focus on the values of Δai without carry expansion, which is the left column for Δai in Table 10. We first consider the propagation of the difference m1 [−5, 6]. It produces the following differences: a2 [5] → a3 [10] → a4 [15] → a5 [20] → a6 [25]. These differences in a propagate through b, c, d to the following differences in the chaining variable e: e6 [3] → e7 [8] → e9 [13] → e9 [18] → e10 [23].

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Advances in Cryptology – CRYPTO 2005: 25th Annual International Cryptology Conference, Santa Barbara, California, USA, August 14-18, 2005. Proceedings by Xiaoyun Wang, Hongbo Yu, Yiqun Lisa Yin (auth.), Victor Shoup (eds.)


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