Chaos synchronization using non-linear observers with applications to cryptography / Mohamed Camil Belhadjoudja (2021) 

Public ISBD Titre : Chaos synchronization using non-linear observers with applications to cryptography Type de document : document électronique Auteurs : Mohamed Camil Belhadjoudja, Auteur ; Mohamed Tadjine, Directeur de thèse ; Messaoud Chakir, Directeur de thèse Editeur : [S.l.] : [s.n.] Année de publication : 2021 Importance : 112 f., 1 fichier PDF (6,8 Mo) Présentation : ill. Note générale : Mode d'accès : accès au texte intégral par intranet. Mémoire de Projet de Fin d’Études : Automatique : Alger, École Nationale Polytechnique : 2021 Bibliogr. f. 108 - 112 Langues : Anglais (eng) Mots-clés : Chaos theory Cryptography Nonlinear observers Chaos synchronization Lattices Index. décimale : PA01721 Résumé : The subject of this thesis is the synchronization of chaotic systems using non-linear bservers, with applications to cryptography. I present in my thesis a general method to improve the performance of some observers with unknown inputs. I also develop a method to improve the frequency characteristics of chaotic systems such as the Rossler system and the Lorenz system. I also build modifications of a twisting observer for systems with time delay. Among these modifications, there is a method that allows us to consider any unknown input of a system in triangular form as being a fictitious state, which allows us to use state observers for the estimation of an unknown input. I construct also the notion of higher-adaptive-order sliding mode observers. I also present a countermeasure using ANFIS observers and an improved Lorenz system facing an acoustic cryptanalysis attack against RSA, then I combine the chaos theory with the lattice theory to generate new problems in post-quantum cryptography Chaos synchronization using non-linear observers with applications to cryptography [document électronique] / Mohamed Camil Belhadjoudja, Auteur ; Mohamed Tadjine, Directeur de thèse ; Messaoud Chakir, Directeur de thèse . - [S.l.] : [s.n.], 2021 . - 112 f., 1 fichier PDF (6,8 Mo) : ill. Mode d'accès : accès au texte intégral par intranet. Mémoire de Projet de Fin d’Études : Automatique : Alger, École Nationale Polytechnique : 2021 Bibliogr. f. 108 - 112 Langues : Anglais (eng) Mots-clés : Chaos theory Cryptography Nonlinear observers Chaos synchronization Lattices Index. décimale : PA01721 Résumé : The subject of this thesis is the synchronization of chaotic systems using non-linear bservers, with applications to cryptography. I present in my thesis a general method to improve the performance of some observers with unknown inputs. I also develop a method to improve the frequency characteristics of chaotic systems such as the Rossler system and the Lorenz system. I also build modifications of a twisting observer for systems with time delay. Among these modifications, there is a method that allows us to consider any unknown input of a system in triangular form as being a fictitious state, which allows us to use state observers for the estimation of an unknown input. I construct also the notion of higher-adaptive-order sliding mode observers. I also present a countermeasure using ANFIS observers and an improved Lorenz system facing an acoustic cryptanalysis attack against RSA, then I combine the chaos theory with the lattice theory to generate new problems in post-quantum cryptography

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Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
EP00395	PA01721	Ressources électroniques	Bibliothèque centrale	Projet Fin d'Etudes	Disponible	Automatique	Téléchargeable

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