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ASIACRYPT
2009
Springer
13 years 11 months ago
Attacking Power Generators Using Unravelled Linearization: When Do We Output Too Much?
We look at iterated power generators si = se i−1 mod N for a random seed s0 ∈ ZN that in each iteration output a certain amount of bits. We show that heuristically an output of...
Mathias Herrmann, Alexander May
CRYPTO
2003
Springer
156views Cryptology» more  CRYPTO 2003»
13 years 10 months ago
Fast Algebraic Attacks on Stream Ciphers with Linear Feedback
Many popular stream ciphers apply a filter/combiner to the state of one or several LFSRs. Algebraic attacks on such ciphers [10, 11] are possible, if there is a multivariate relat...
Nicolas Courtois
ACISP
2006
Springer
13 years 10 months ago
On Exact Algebraic [Non-]Immunity of S-Boxes Based on Power Functions
In this paper we are interested in algebraic immunity of several well known highly-nonlinear vectorial Boolean functions (or Sboxes), designed for block and stream ciphers. Unfortu...
Nicolas Courtois, Blandine Debraize, Eric Garrido
ASPLOS
1992
ACM
13 years 9 months ago
Access Normalization: Loop Restructuring for NUMA Compilers
: In scalable parallel machines, processors can make local memory accesses much faster than they can make remote memory accesses. In addition, when a number of remote accesses must...
Wei Li, Keshav Pingali
EUROCRYPT
2009
Springer
14 years 5 months ago
Smashing SQUASH-0
At the RFID Security Workshop 2007, Adi Shamir presented a new challenge-response protocol well suited for RFIDs, although based on the Rabin public-key cryptosystem. This protocol...
Khaled Ouafi, Serge Vaudenay