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Episciences
Article . 2011
Data sources: Episciences
https://dx.doi.org/10.48550/ar...
Article . 2011
License: arXiv Non-Exclusive Distribution
Data sources: Datacite
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Collision-resistant hash function based on composition of functions

Authors: Juvet Karnel Sadie; René Ndoundam;

Collision-resistant hash function based on composition of functions

Abstract

A cryptographic hash function is a deterministic procedure that compresses an arbitrary block of numerical data and returns a fixed-size bit string. There exists many hash functions: MD5, HAVAL, SHA, ... It was reported that these hash functions are no longer secure. Our work is focused on the construction of a new hash function based on composition of functions. The construction used the NP-completeness of Three-dimensional contingency tables and the relaxation of the constraint that a hash function should also be a compression function. Une fonction de hachage cryptographique est une procédure déterministe qui compresse un ensemble de données numériques de taille arbitraire en une chaîne de bits de taille fixe. Il existe plusieurs fonctions de hachage : MD5, HAVAL, SHA... Il a été reporté que ces fonctions de hachagene sont pas sécurisées. Notre travail a consisté à la construction d’une nouvelle fonction de hachage basée sur une composition de fonctions. Cette construction utilise la NP-completude des tables de contingence de dimension 3 et une relaxation de la contrainte selon laquelle une fonction de hachage doit être aussi une fonction de compression.

Related Organizations
Keywords

One-way function, FOS: Computer and information sciences, fonction de hachage résistante aux collisions, Computer Science - Cryptography and Security, Matrix of zeros and ones, table de contingence de dimension 3, Collision-resistant hash function, [MATH] Mathematics [math], [INFO] Computer Science [cs], D.4.6, NP-complet, fonction à un sens, Matrice des zéros et des uns, Three-dimensional contingency table, Cryptography and Security (cs.CR), 11T71, NP-complete

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold