Download Advances in Cryptology — EUROCRYPT 2003: International by Antoine Joux (auth.), Eli Biham (eds.) PDF

By Antoine Joux (auth.), Eli Biham (eds.)

This booklet constitutes the refereed lawsuits of the foreign convention at the idea and functions of Cryptographic thoughts, EUROCRYPT 2003, held in Warsaw, Poland in could 2003.

The 37 revised complete papers awarded including invited papers have been rigorously reviewed and chosen from 156 submissions. The papers are equipped in topical sections on cryptanalysis, safe multi-party communique, zero-knowledge protocols, foundations and complexity-theoretic protection, public key encryption, new primitives, elliptic curve cryptography, electronic signatures, information-theoretic cryptography, and crew signatures.

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Read or Download Advances in Cryptology — EUROCRYPT 2003: International Conference on the Theory and Applications of Cryptographic Techniques, Warsaw, Poland, May 4–8, 2003 Proceedings PDF

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Extra resources for Advances in Cryptology — EUROCRYPT 2003: International Conference on the Theory and Applications of Cryptographic Techniques, Warsaw, Poland, May 4–8, 2003 Proceedings

Example text

In the description we use the following notation: the linear mappings L1 and L2 will be denoted by A and B −1 respectively. The sets CA , CB are the sets of checked points for which the mapping (A or B respectively) is known. By construction, these sets will also contain all the linear combinations of known points. The sets UA , UB are the sets of yet unknown points. The sets NA , NB describe all the new points for which we know the mapping (either A or B, respectively), but which are linearly independent from points of CA or CB , respectively.

32 P. Junod 10. H. Gilbert, H. Handschuh, A. Joux, and S. Vaudenay, A statistical attack on RC6, Fast Software Encryption FSE’00, LNCS, vol. 1978, Springer-Verlag, 2000, pp. 65– 74. 11. R. R. Stirzaker, Probability and random processes, Oxford University Press, 2001, 3rd edition. 12. H. Handschuh and H. Gilbert, χ2 cryptanalysis of the SEAL encryption algorithm, Fast Software Encryption FSE’97, LNCS, vol. 1267, Springer-Verlag, 1997, pp. 1– 12. 13. C. Harpes and J. Massey, Partitioning cryptanalysis, Fast Software Encryption FSE’97, LNCS, vol.

I n such a case we can add the value of 0 to b o t h NA a n d NB. Using the fact t h a t A(0) B(0) 0 we can s t a r t with less initial guessing, which saves us a factor of T ~ in complexity. T h e a l g o r i t h m follo~vs the i m p l i c a t i o n s of the initial guess u n t i l we have e n o u g h vectors for A or B to either reach a c o n t r a d i c t i o n or have n i n d e p e n d e n t vectors c o m p l e t e l y defining the m a p p i n g . If we o b t a i n a m a p p i n g t h a t is either n o n - i n v e r t i b l e or non-linear, we reject the incorrect guess.

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