Cryptography

Advances in Cryptology - CRYPTO 2007: 27th Annual - download pdf or read online

By Vivien Dubois, Pierre-Alain Fouque, Adi Shamir, Jacques Stern (auth.), Alfred Menezes (eds.)

ISBN-10: 3540741429

ISBN-13: 9783540741428

The twenty seventh Annual overseas Cryptology convention used to be held in Santa Barbara, California, in August 2007. The convention drew researchers from worldwide who got here to provide their findings and speak about the newest advancements within the box. This e-book constitutes the refereed court cases of the conference.

Thirty-three complete papers are awarded in addition to one very important invited lecture. every one has been conscientiously reviewed through the editor to make sure that all papers are exact, effortless to learn, and make a huge contribution to the field.

The papers tackle present foundational, theoretical, and learn features of cryptology, cryptography, and cryptanalysis. moreover, readers will become aware of many complicated and rising applications.

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Read or Download Advances in Cryptology - CRYPTO 2007: 27th Annual International Cryptology Conference, Santa Barbara, CA, USA, August 19-23, 2007. Proceedings PDF

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Extra resources for Advances in Cryptology - CRYPTO 2007: 27th Annual International Cryptology Conference, Santa Barbara, CA, USA, August 19-23, 2007. Proceedings

Sample text

Springer, Heidelberg (1996) 4. : Forgery and Partial Key-Recovery Attacks on HMAC and NMAC Using Hash Collisions. , Chen, K. ) ASIACRYPT 2006. LNCS, vol. 4284, Springer, Heidelberg (2006) 5. : In: Cramer, R. ) EUROCRYPT 2005. LNCS, vol. 3494, pp. 22–26. Springer, Heidelberg (2005) 6. : Cryptanalysis of Hash Functions of the MD4-Family. PhD thesis, RuhrUniversity of Bochum (2005) 7. : Collisions for the Compression Function of MD5. In: Helleseth, T. ) EUROCRYPT 1993. LNCS, vol. 765, pp. 293–304.

5] pp. 1–18 18. : Finding Collisions in the Full SHA-1. [16] pp. 17–36 19. : How to Break MD5 and Other Hash Functions. [5] pp. 19–35 20. : Efficient Collision Search Attacks on SHA-0. [16] pp. 1–16 21. : The Second-Preimage Attack on MD4. , Li, Y. ) CANS 2005. LNCS, vol. 3810, pp. 1–12. 1 Improving the MD4 IV-Recovery Reducing the Online Cost First, we can easily lower the number of calls to the NMAC-oracle in the first phase of the IV-recovery. Instead of trying 22 × 282 random message pairs, we will choose the messages more cleverly so that each message belongs to 22 pairs: we first choose 490 bits of the message at random and then use every possibility for the 22 remaining bits.

We will present two types of IV-recovery attacks. The first type is due to Contini and Yin [4] and uses related messages, while the second type is novel, based on IV-dependent differential paths. Using related messages. We present the first type of IV-recovery attacks. Assume that we know a specific differential path corresponding to a message difference Δ and with total probability p much larger than 2−128 . In other words, a randomly chosen message M will satisfy with probability p: Hk (M ) = Hk (M Δ).

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Advances in Cryptology - CRYPTO 2007: 27th Annual International Cryptology Conference, Santa Barbara, CA, USA, August 19-23, 2007. Proceedings by Vivien Dubois, Pierre-Alain Fouque, Adi Shamir, Jacques Stern (auth.), Alfred Menezes (eds.)


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