Assia Mouloudi

Learn More
This work is a contribution to cryptography. We have developed a symmetrical blocks ciphering system, that is an improvement of our cryptosystem inspired from genetic algorithm published in AMSE periodical. His complexity is o(n) because all operations used are simple and they are applied randomly in ciphering. Furthermore, in our system the user can choose(More)
In this paper, we present two symmetric evolutionist-based ciphering algorithms (SEC and SEC-EX) where the second is an extension of the first. Our evolutionist approach is modeled as a combinatorial optimization problem. The paper addresses the coding of the chromosomes, the identification of a fitness function, and the choice of the adapted genetic(More)
The ciphering system presented in this paper is an extension of our ciphering system, which is already published (F. Omary, et al., 2005). Indeed, being given a plaintext, coded into binary and cut out in blocks of fixed size, we determine the lists of the positions of the various blocks constituting this plaintext and instead of applying the evolutionary(More)
This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents(More)
This paper concerns the problem of designing an information system for public transportation users. The aim of this system is to centralise data issued from different sources and to select those, which are relevant for built useful information for the users. In this work we propose an approach to link data representing the actual users' needs with data(More)
  • 1