Witryna2011. Robert Niebuhr, Pierre-Louis Cayrel, Stanislav Bulygin, Johannes Buchmann. "Improving the efficiency of Generalized Birthday Attacks against certain structured cryptosystems". Pages 163–172 in: Daniel Augot and Anne Canteaut (editors). ... Paul Kirchner "Improved Generalized Birthday Attack." Cryptology ePrint Archive, … Witryna8 maj 2016 · The best published algorithm for solving it at Asiacrypt 2014 improved the classical BKW algorithm by using covering codes, which claimed to marginally compromise the 80-bit security of HB variants, LPN-C and Lapin.
Lapin: An Efficient Authentication Protocol Based on Ring-LPN
Witrynathe rst published collision nding attacks on reduced-round versions of Keccak-384 and Keccak-512, providing actual collisions for 3-round versions, and describing an attack which is 245 times faster than birthday attacks for 4-round Keccak-384. For Keccak-256, we increase the number of rounds which can be attacked to 5. All these results … Witryna1 sty 2000 · We generalize the birthday attack presented by Coppersmith at Crypto’85 which defrauded a Davies-Price message authentication scheme. We first study the … software to open dwf file
Evaluate the security margins of SHA-512, SHA-256 and DHA
WitrynaOur techniques start to improve upon existing protocols when there are around n=10parties with h=4honest parties, and as these increase we obtain up to a 13 times reduction (for n=400,h=120) in communication complexity for our GMW variant, compared with the best-known GMW-based protocol modified to use the same … Witryna1 lis 2024 · In this study, the authors present some new algorithms for the unbalanced generalised birthday problem (UGBP), which was proposed by Nikolić and Sasaki in their attacks on the generalised birthday problem (GBP). The authors’ first idea is simple, which uses some precomputing to convert UGBP into GBP. The new attack combines linearization and generalized birthday attacks and thus, is faster than all these attacks. Furthermore, both algorithms are slightly improved. This leads to practical attacks against the cryptosystems. The algorithm was implemented and allowed to nd a collision in FSB-48 in far less ressources than previously in [3]. software to open dat file