La cryptographie à l’aide des Systèmes Chaotiques / kellout ,Zineb Sourour  

Public ISBD Titre : La cryptographie à l’aide des Systèmes Chaotiques Type de document : texte imprimé Auteurs : kellout ,Zineb Sourour, Auteur ; Kharchi ,Samia, Directeur de thèse Editeur : Setif:UFA Année de publication : 2021 Importance : 1 vol (76 f .) Format : 29 cm Langues : Français (fre) Catégories : Thèses & Mémoires:Informatique Mots-clés : Cryptography Cryptanalysis Index. décimale : 004 - Informatique Résumé : During the last decades, communication systems have completely changed thanks to technologies and new communication networks, in both digital and analogue transmissions. Indeed, nowadays, millions of kilobytes of confidential information are transmitted through unsecured communication channels, the Internet revolution has made the exchange of information much easier. However, with this constant flow, we are struggling to find a space of confidentiality. Information may at any time be intercepted by unauthorized persons. Cryptography, a very old science, has provided some security using traditional encryption algorithms that are now insufficient. The use of chaos to secure data has been a topic of study for several years. Chaos underwent a mathematical development in the 1970s followed by a real boom scientist. Chaos is obtained from nonlinear systems. It corresponds to a bounded behavior of those systems having the appearance of pseudo-random noise. It can therefore be used to hide or mix information in a secure transmission. The main purpose of this dissertation is to provide chao cryptography. We propose an algorithm to encrypt and decrypt an image via a chaotic system. The experiments and tests carried out have given good results which prove the robustness of the algorithm. Côte titre : MAI/0466 En ligne : https://drive.google.com/file/d/1p1O6yphDQIGe8x5HjBj2Oe-6v_NI6K9V/view?usp=shari [...] Format de la ressource électronique : pdf La cryptographie à l’aide des Systèmes Chaotiques [texte imprimé] / kellout ,Zineb Sourour, Auteur ; Kharchi ,Samia, Directeur de thèse . - [S.l.] : Setif:UFA, 2021 . - 1 vol (76 f .) ; 29 cm. Langues : Français (fre) Catégories : Thèses & Mémoires:Informatique Mots-clés : Cryptography Cryptanalysis Index. décimale : 004 - Informatique Résumé : During the last decades, communication systems have completely changed thanks to technologies and new communication networks, in both digital and analogue transmissions. Indeed, nowadays, millions of kilobytes of confidential information are transmitted through unsecured communication channels, the Internet revolution has made the exchange of information much easier. However, with this constant flow, we are struggling to find a space of confidentiality. Information may at any time be intercepted by unauthorized persons. Cryptography, a very old science, has provided some security using traditional encryption algorithms that are now insufficient. The use of chaos to secure data has been a topic of study for several years. Chaos underwent a mathematical development in the 1970s followed by a real boom scientist. Chaos is obtained from nonlinear systems. It corresponds to a bounded behavior of those systems having the appearance of pseudo-random noise. It can therefore be used to hide or mix information in a secure transmission. The main purpose of this dissertation is to provide chao cryptography. We propose an algorithm to encrypt and decrypt an image via a chaotic system. The experiments and tests carried out have given good results which prove the robustness of the algorithm. Côte titre : MAI/0466 En ligne : https://drive.google.com/file/d/1p1O6yphDQIGe8x5HjBj2Oe-6v_NI6K9V/view?usp=shari [...] Format de la ressource électronique : pdf

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
MAI/0466	MAI/0466	Mémoire	Bibliothéque des sciences	Français	Disponible Disponible

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