Get Advances in Cryptology – EUROCRYPT 2005: 24th Annual PDF

By Xiaoyun Wang, Xuejia Lai, Dengguo Feng, Hui Chen, Xiuyuan Yu (auth.), Ronald Cramer (eds.)

ISBN-10: 3540259104

ISBN-13: 9783540259107

ISBN-10: 3540320555

ISBN-13: 9783540320555

These are the lawsuits of the twenty fourth Annual IACR Eurocrypt convention. The convention used to be backed by means of the overseas organization for Cryptologic Research(IACR;seewww.iacr.org),thisyearincooperationwiththeComputer technological know-how division of the college of Aarhus, Denmark. As basic Chair, Ivan Damg? ard used to be accountable for neighborhood association. TheEurocrypt2005ProgramCommittee(PC)consistedof30internationally well known specialists. Their names and a?liations are indexed on pages VII and VIII of those complaints. through the November 15, 2004 submission time limit the computer had got a complete of one hundred ninety submissions through the IACR digital Submission Server. the following choice approach used to be divided into stages, as ordinary. within the evaluate part every one submission was once conscientiously scrutinized via a minimum of 3 self sufficient reviewers, and the evaluate studies, usually wide, have been dedicated to the IACR net evaluate approach. those have been taken because the start line for the PC-wideWeb-baseddiscussionphase.Duringthisphase,additionalreportswere supplied as wanted, and the computer finally had a few seven-hundred stories at its disposal. moreover, the discussions generated greater than 850 messages, all published within the method. throughout the complete computer section, which all started in August 2003 with my earliest invites to laptop contributors and which endured until eventually March 2005, greater than one thousand e mail messages have been communicated. additionally, the computer bought a lot favored the aid of a wide physique of exterior reviewers. Their names are indexed on web page VIII of those proceedings.

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Additional resources for Advances in Cryptology – EUROCRYPT 2005: 24th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Aarhus, Denmark, May 22-26, 2005. Proceedings

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One way hash function and DES, Advances in Cryptology, Crypto’89 Proceedings, Springer-Verlag, 1990. 17. L. Rivest. The MD4 message digest algorithm, Advances in Cryptology, Crypto’90, Springer-Verlag, 1991, 303-311. 18. L. Rivest. The MD5 message-digest algorithm, Request for Comments (RFC 1320), Internet Activities Board, Internet Privacy Task Force, 1992. 19. Y. D. J. B. Yu, Collisions for hash functions MD4, MD5, HAVAL-128 and RIPEMD, rump session of Crypto’04, E-print, 2004. 20. L. Zheng, J.

Note that when the carry arrives to bit 32, a further (dropped) carry may happen, and then there is no negative sign in bit 32. It should be noted that the modular differential has been used earlier to analyze some hash functions ([4], [7], [10]). Compared with these attacks, our attack has the following advantages: How to Break MD5 and Other Hash Functions 23 1. Our attack is to find collisions with two iterations, i. , each message in the collision includes two message blocks (1024-bit). 2. Our attack is a precise differential attack in which the characteristics are more restrictive than used, and that they gives values of bits in addition to the differences.

Our attack is also able to break efficiently other hash functions, such as HAVAL-128, MD4, RIPEMD, and SHA-0. The analysis results for these hash functions are as follows: 1. The time complexity for finding a collision for MD4 is about 223 MD4 operations without the multi-message modification, and is about 28 MD4 operations with the multi-message modification. 30 X. Wang and H. Yu 2. The time complexity for finding a collision for HAVAL-128 is about 213 MD4 operations without the multi-message modification, and is 27 HAVAL-128 operations with the multi-message modification.

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Advances in Cryptology – EUROCRYPT 2005: 24th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Aarhus, Denmark, May 22-26, 2005. Proceedings by Xiaoyun Wang, Xuejia Lai, Dengguo Feng, Hui Chen, Xiuyuan Yu (auth.), Ronald Cramer (eds.)


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