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» On Plateaued Functions and Their Constructions
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DAM
2008
123views more  DAM 2008»
15 years 6 months ago
Ultrametrics, Banach's fixed point theorem and the Riordan group
We interpret the reciprocation process in K[[x]] as a fixed point problem related to contractive functions for certain adequate ultrametric spaces. This allows us to give a dynamic...
Ana Luzón, Manuel A. Morón
JUCS
2008
117views more  JUCS 2008»
15 years 6 months ago
Disentangling Denotational Semantics Definitions
Abstract: Denotational semantics is a powerful technique to formally define programming languages. However, language constructs are not always orthogonal, so many semantic equation...
Fabio Tirelo, Roberto da Silva Bigonha, Joã...
IMCSIT
2010
15 years 3 months ago
Parallel, Massive Processing in SuperMatrix - a General Tool for Distributional Semantic Analysis of Corpus
The paper presents an extended version of the SuperMatrix system -- a general tool supporting automatic acquisition of lexical semantic relations from corpora. Extensions focus mai...
Bartosz Broda, Damian Jaworski, Maciej Piasecki
EUROCRYPT
2011
Springer
14 years 10 months ago
Unbounded HIBE and Attribute-Based Encryption
In this work, we present HIBE and ABE schemes which are “unbounded” in the sense that the public parameters do not impose additional limitations on the functionality of the sy...
Allison B. Lewko, Brent Waters
SACRYPT
2009
Springer
155views Cryptology» more  SACRYPT 2009»
16 years 1 months ago
Practical Collisions for SHAMATA-256
In this paper, we present a collision attack on the SHA-3 submission SHAMATA. SHAMATA is a stream cipher-like hash function design with components of the AES, and it is one of the ...
Sebastiaan Indesteege, Florian Mendel, Bart Prenee...