Download Advances in Cryptology – EUROCRYPT 2005: 24th Annual by Xiaoyun Wang, Xuejia Lai, Dengguo Feng, Hui Chen, Xiuyuan Yu PDF

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

These are the lawsuits of the twenty fourth Annual IACR Eurocrypt convention. The convention was once backed via the overseas organization for Cryptologic Research(IACR;seewww.iacr.org),thisyearincooperationwiththeComputer technological know-how division of the college of Aarhus, Denmark. As normal Chair, Ivan Damg? ard used to be chargeable for neighborhood association. TheEurocrypt2005ProgramCommittee(PC)consistedof30internationally popular specialists. Their names and a?liations are indexed on pages VII and VIII of those lawsuits. through the November 15, 2004 submission time limit the computer had obtained a complete of one hundred ninety submissions through the IACR digital Submission Server. the following choice procedure was once divided into stages, as ordinary. within the overview part every one submission was once conscientiously scrutinized through not less than 3 autonomous reviewers, and the assessment reviews, frequently large, have been devoted to the IACR net evaluation process. those have been taken because the place to begin for the PC-wideWeb-baseddiscussionphase.Duringthisphase,additionalreportswere supplied as wanted, and the computer finally had a few seven-hundred reviews at its disposal. additionally, the discussions generated greater than 850 messages, all published within the process. through the complete laptop section, which all started in August 2003 with my earliest invites to notebook individuals and which persevered till March 2005, greater than a thousand e mail messages have been communicated. furthermore, the computer acquired a lot liked the aid of a wide physique of exterior reviewers. Their names are indexed on web page VIII of those proceedings.

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Extra 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

Example text

B) Modify M1 by the message modification techniques described in the previous subsection. (c) Then, M1 and M1 + ΔM1 generate the second iteration differential (ΔH1 , ΔM1 ) −→ ΔH = 0 with the probability 2−30 . (d) Test if this pair of messages lead to a collision. The complexity of finding (M0 , M0 ) doesn’t exceed the time of running 239 MD5 operations. To select another message M0 is only to change the last two words from the previous selected message M0 . So, finding (M0 , M0 ) only needs about one-time single-message modification for the first 14 words.

30, 31, 32] d4 [32] c4 [4, 16, 32] b4 [−30, 32] a5 [32] d5 [32] c5 [18, 32] b5 [32] a6 [32] d6 [32] c6 [32] b6 [32] a7 d7 c7 ... d9 c9 [∗32] d9 [∗32] a10 [∗32] d10 [∗32] c10 [∗32] ... a13 [32] d13 [−32] c13 [32] b13 [−32] ... c15 [32] b15 [32] a16 + aa0 = a16 + aa0 d16 + dd0 = d16 + dd0 c16 + cc0 = c16 + cc0 b16 + bb0 = b16 + bb0 How to Break MD5 and Other Hash Functions 35 Table 6. fr Abstract. In this paper we describe improvements to the techniques used to cryptanalyze SHA-0 and introduce the first results on SHA1.

H. Dobbertin, A. Bosselaers, B. Preneel. RIPEMD-160: A strengthened version of RIPEMD, Fast Software Encryption, LNCS 1039, Springer-Verlag, 1996. 12. FIPS 180-1. , Springer-Verlag, 1996. How to Break MD5 and Other Hash Functions 31 13. FIPS 180-2. gov/publications/, 2002. 14. A. Joux. Collisions for SHA-0, rump session of Crypto’04, 2004. 15. RIPE. Integrity Primitives for Secure Information Systems. Final Report of RACE Integrity Primitives Evaluation (RIPE-RACE 1040), LNCS 1007, Springer-Verlag, 1995.

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