{"id":17683,"date":"2018-03-09T09:05:51","date_gmt":"2018-03-09T09:05:51","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/sa%c2%adntesis-del-modelo-de-automatas-celulares-en-protocolos-criptograficos-de-cifrado-en-flujo-y-orientado-a-redes-de-feistel\/"},"modified":"2018-03-09T09:05:51","modified_gmt":"2018-03-09T09:05:51","slug":"sa%c2%adntesis-del-modelo-de-automatas-celulares-en-protocolos-criptograficos-de-cifrado-en-flujo-y-orientado-a-redes-de-feistel","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/sa%c2%adntesis-del-modelo-de-automatas-celulares-en-protocolos-criptograficos-de-cifrado-en-flujo-y-orientado-a-redes-de-feistel\/","title":{"rendered":"S\u00edntesis del modelo de aut\u00f3matas celulares en protocolos criptogr\u00e1ficos de cifrado en flujo y orientado a redes de feistel"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Antonio  Jorge Tomeu Hardasmal <\/strong><\/h2>\n<p>El objeto de la tesis doctoral es la realizaci\u00f3n de una s\u00edntesis de paradigmas: de una parte, el modelo de c\u00e1lculo te\u00f3rico de los aut\u00f3nomas celulares; de la otra, los modelos cl\u00e1sicos de cifrado tanto en flujo de bits (cifrados vernam), como en bloque (redes de feistel). El resultado final ser\u00e1n criptosistemas cl\u00e1sicos integrando aut\u00f3matas celulares y ofreciendos unos niveles de seguridad razonables. El primer paso es proceder a definir un criterio que permita el an\u00e1lisis del espacio de aut\u00f3matas celulares codificados mediante reglas aditivas, de forma automatizada, con el objetivo de lograr una base de datos de muestras que act\u00faen de manera aleatoria. el criterio elegido para la selecci\u00f3n ha sido el dise\u00f1o de una bater\u00eda de test de aleatoriedad que, integrados en un software de prop\u00f3sito espec\u00edfico permiten el an\u00e1lisis del espacio de reglas citado. Fruto de tal an\u00e1lisis es una base de datos (potencialmente ampliable) que recoge los aut\u00f3nomas celulares con reglas aditivas que superan la bater\u00eda de test, y para los cuales adem\u00e1s se calculan tres par\u00e1metros adicionales: distancia media de hamming interconfiguraci\u00f3n, entrop\u00eda de configuraci\u00f3n y entrop\u00eda temporal. en base a todo ello es posible escoger de entre los aut\u00f3matas clasificados aquellos que se comportan de forma aleatoria. A continuaci\u00f3n se integraron aut\u00f3matas celulares binarios extraidos de la base de datos en esquemas de cifrado en flujo de bits, realiz\u00e1ndose la implementaci\u00f3n del cifrado y el correspondiente criptoan\u00e1lisis estad\u00edstico, que fue superado en varios de los casos de estudio. No obstante, la literatura muestra un resultado que establece la isomorfia entre aut\u00f3matas celulares y registros lineales de desplazamiento realimentado, a partir de la cual es algoritmo de berlekamp-massey se constituye en un potencial mecanismo de criptoan\u00e1lisis capaz de romper la cifra. Para evitarlo, se propone (integrando nuevamente aut\u00f3matas celulares) las<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>S\u00edntesis del modelo de aut\u00f3matas celulares en protocolos criptogr\u00e1ficos de cifrado en flujo y orientado a redes de feistel<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 S\u00edntesis del modelo de aut\u00f3matas celulares en protocolos criptogr\u00e1ficos de cifrado en flujo y orientado a redes de feistel <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Antonio  Jorge Tomeu Hardasmal <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 C\u00e1diz<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 24\/06\/2002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Alejandro P\u00e9rez Cu\u00e9llar<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  gabriel Tena ayuso <\/li>\n<li> Gandarias nu\u00f1ez Mar\u00eda  luz (vocal)<\/li>\n<li>buenaventura Clares rodr\u00edguez (vocal)<\/li>\n<li> D\u00edaz moreno Jos\u00e9 Manuel (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Antonio Jorge Tomeu Hardasmal El objeto de la tesis doctoral es la realizaci\u00f3n de una s\u00edntesis de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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