Download Cryptographic Hardware and Embedded Systems, CHES 2010: 12th by Jean-Philippe Aumasson, Luca Henzen, Willi Meier, María PDF

By Jean-Philippe Aumasson, Luca Henzen, Willi Meier, María Naya-Plasencia (auth.), Stefan Mangard, François-Xavier Standaert (eds.)

This booklet constitutes the refereed lawsuits of the twelfth foreign Workshop on Cryptographic and Embedded platforms, CHES 2010, held in Santa Barbara, united states in the course of August 17-20, 2010. This yr it was once co-located with the thirtieth overseas Cryptology convention (CRYPTO). The e-book includes 2 invited talks and 30 revised complete papers which have been rigorously reviewed and chosen from from 108 submissions. The papers are prepared in topical sections on good value cryptography, effective implementation, side-channel assaults and countermeasures, tamper resistance, trojans, PUFs and RNGs.

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FSE 1996. LNCS, vol. 1039, pp. 205–218. Springer, Heidelberg (1996) 19. PolyIC. com 20. : Lightweight Cryptography and RFID: Tackling the Hidden Overheads. , Hong, S. ) Proceedings of ICISC ’09. Springer, Heidelberg (to appear, 2009) 21. : Searching for Compact Algorithms: cgen. Q. ) VIETCRYPT 2006. LNCS, vol. 4341, pp. 37–49. Springer, Heidelberg (2006) 22. : Ultra-Lightweight Implementations for Smart Devices - Security for 1000 Gate Equivalents. -X. ) CARDIS 2008. LNCS, vol. 5189, pp. 89–103.

E. to keep the hierarchy of the components. The smallest area footprint is achieved, however, if the compiler uses the compile ultra command, which allows the merging and optimization of different components simultaneously. Since the key xor is hardwired, the area requirements for the KeyXOR component are dependent on the Hamming weight of the key. The implementation figures of Figure 4 used a key with Hamming weight 24, thus the area footprint of a serialized implementation of PRINTcipher-48 is bounded by 386 GE and 418 GE for keys with Hamming weight 0 and 48, respectively (694 GE and 758 GE for PRINTcipher-96).

Consequently, if a dth -order differential over s rounds for one key is not zero, then the algebraic degree of this encryption function is at least d − 1. For seven rounds of PRINTcipher and for ten randomly chosen keys we computed the values of two different 25th -order differentials. In all cases the values were nonzero. The experiments suggest that the algebraic degree of PRINTcipher reaches its maximum after much less than the specified 48 rounds. Due to this observations, we expect PRINTcipher to be secure against higher order differential attacks.

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