Xiaoyun Wang, Xuejia Lai, Dengguo Feng, Hui Chen, Xiuyuan Yu's 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 was once backed by way of the overseas organization for Cryptologic Research(IACR;seewww.iacr.org),thisyearincooperationwiththeComputer technology division of the college of Aarhus, Denmark. As common Chair, Ivan Damg? ard was once chargeable for neighborhood association. TheEurocrypt2005ProgramCommittee(PC)consistedof30internationally popular specialists. Their names and a?liations are indexed on pages VII and VIII of those court cases. through the November 15, 2004 submission time limit the computer had acquired a complete of one hundred ninety submissions through the IACR digital Submission Server. the following choice method was once divided into levels, as ordinary. within the assessment part each one submission used to be conscientiously scrutinized through at the least 3 self sufficient reviewers, and the evaluation stories, usually huge, have been dedicated to the IACR internet evaluate procedure. 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 studies at its disposal. moreover, the discussions generated greater than 850 messages, all published within the procedure. throughout the whole computer section, which begun in August 2003 with my earliest invites to computer contributors and which persevered till March 2005, greater than one thousand electronic mail messages have been communicated. furthermore, the computer bought a lot liked the help of a wide physique of exterior reviewers. Their names are indexed on web page VIII of those proceedings.

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Extra info 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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In the list of bits, the bits whose value in X is zero are marked without a sign, and the values whose value in X is 1 are marked with a negative sign. For example, the difference −26 , [7, 8, 9, . . , 22, −23] marks the integer modular subtraction difference X − X = −26 (with X < X), with many carries which start from bit 7 up to bit 23. All bits of X from bit 7 to bit 22 are 0, and bit 23 is 1, while all bits of X from bit 7 to bit 22 are 1, and bit 23 is 0. A more complicated example is −1 − 26 + 223 −227 , [1, 2, 3, 4, 5, −6, 7, 8, 9, 10, 11, −12, −24, −25, −26, 27, 28, 29, 30, 31, −32], where the integer modular subtraction difference is composed of several (positive and negative) exponents of 2, and the XOR difference has many difference due to carries.

The results include a generic multi-block technique that uses nearcollisions in order to find collisions, and a four-block collision of SHA-0 found using this technique with complexity 251 . Then, extension of this and prior techniques are presented, that allow us to find collisions of reduced versions of SHA-1. We give collisions of variants with up to 40 rounds, and show the complexities of longer variants. These techniques show that collisions up to about 53–58 rounds can still be found faster than by birthday attacks.

3. B. den. Boer, A. Bosselaers. Collisions for the compression function of MD5, Advances in Cryptology, Eurocrypt’93 Proceedings, Springer-Verlag, 1994. 4. F. Chabaud, A. Joux. Differential collisions in SHA-0, Advances in Cryptology, Crypto’98 Proceedings, Springer-Verlag, 1998. 5. S. L. B. Robshaw, Y. Lisa Yin. com/rsalabs/rc6/. 6. I. B. Damgard. A design principle for hash functions, Advances in Cryptology, Crypto’89 Proceedings, Springer-Verlag, 1990. 7. H. Dobbertin. Cryptanalysis of MD4, Fast Software Encryption, LNCS 1039, Springer-Verlag, 1996, 53-69.

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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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