{"id":137574,"date":"2017-11-30T00:31:31","date_gmt":"2017-11-30T00:31:31","guid":{"rendered":"https:\/\/\/circuits-de-securite-impossible-a-cloner\/"},"modified":"2017-11-30T00:31:31","modified_gmt":"2017-11-30T00:31:31","slug":"circuits-de-securite-impossible-a-cloner","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/circuits-de-securite-impossible-a-cloner\/","title":{"rendered":"Circuits de s\u00e9curit\u00e9 impossible \u00e0 cloner"},"content":{"rendered":"<p>Les cyberattaques continuent \u00e0 faire les gros titres et les dispositifs IoT (Internet of Things, ou internet des objets) constituent un point de vuln\u00e9rabilit\u00e9. Les dommages caus\u00e9s par la cybercriminalit\u00e9 devraient co\u00fbter 6 milliards de dollars par an d&rsquo;ici 2021 \u00e0 travers le monde, selon Cybersecurity Ventures. Pourtant, l\u2019impl\u00e9mentation de la s\u00e9curit\u00e9 est encore trop souvent prise en compte apr\u00e8s coup, de nombreux ing\u00e9nieurs estimant que la mise en \u0153uvre de la s\u00e9curit\u00e9 est trop co\u00fbteuse, difficile et chronophage, ou ayant recours \u00e0 une solution logicielle pour prot\u00e9ger leurs syst\u00e8mes. De plus, m\u00eame lorsque l\u2019on utilise des CI s\u00e9curis\u00e9s, certains peuvent \u00eatre compromis par des attaques sophistiqu\u00e9es, ciblant directement le silicium. De telles attaques visent \u00e0 obtenir les cl\u00e9s cryptographiques et les donn\u00e9es s\u00e9curis\u00e9es que ces CI stockent.<br \/>\nLe DS28E38 est dot\u00e9 de la technologie PUF (Physical Unclonable Function, ou fonction impossible \u00e0 cloner physiquement) ChipDNA de Maxim, ce qui l\u2019immunise contre les attaques invasives, \u00e9tant donn\u00e9 que la cl\u00e9 cryptographique racine ChipDNA n&rsquo;est pas pr\u00e9sente en m\u00e9moire ni sous aucune forme statique. Au lieu de cela, le circuit PUF de Maxim s&rsquo;appuie sur les caract\u00e9ristiques analogiques al\u00e9atoires naturelles des dispositifs semiconducteurs MOSFET pour g\u00e9n\u00e9rer les cl\u00e9s cryptographiques. Lorsque c\u2019est n\u00e9cessaire, le circuit g\u00e9n\u00e8re une cl\u00e9 unique par pi\u00e8ce et qui dispara\u00eet instantan\u00e9ment d\u00e8s qu&rsquo;elle n&rsquo;est plus utilis\u00e9e. Si le DS28E38 devait subir une attaque physique invasive, l&rsquo;attaque provoquerait une variation des caract\u00e9ristiques \u00e9lectriques sensibles du circuit, ce qui rendrait ladite attaque inefficace. En plus d\u2019une protection renforc\u00e9e, la technologie ChipDNA r\u00e9duit voire \u00e9limine la compl\u00e9xit\u00e9 de la gestion de cl\u00e9 de CI s\u00e9curis\u00e9 puisque la cl\u00e9 peut \u00eatre utilis\u00e9e directement pour les op\u00e9rations cryptographiques. &nbsp;La circuiterie ChipDNA a \u00e9galement fait preuve d&rsquo;une grande fiabilit\u00e9 par rapport aux variations de processus de fabrication, \u00e0 la tension d\u2019alimentaton, \u00e0 la temp\u00e9rature et au vieillissement. De plus, en mati\u00e8re de qualit\u00e9 cryptographique, les tests portant sur le caract\u00e8re al\u00e9atoire de la sortie PUF et r\u00e9alis\u00e9s \u00e0 l\u2019aide de la suite de test du &nbsp;NIST se sont r\u00e9v\u00e9l\u00e9s concluants. En utilisant le DS28E38, les ing\u00e9nieurs peuvent, d\u00e8s le d\u00e9but de la conception, int\u00e9grer une protection contre le piratage. Ce CI est peu co\u00fbteux et facile \u00e0 int\u00e9grer gr\u00e2ce \u00e0 l&rsquo;interface Maxim 1-Wire \u00e0 un seul fil, associ\u00e9e \u00e0 un jeu de commandes fixe peu complexe comprenant des op\u00e9rations de cryptage.<\/p>\n<p><a href=\"http:\/\/www.maximintegrated.com\/products\/DS28E38\">www.maximintegrated.com\/products\/DS28E38<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les concepteurs peuvent d\u00e9sormais prot\u00e9ger facilement, de mani\u00e8re pro-active et \u00e0 peu de frais, leur propri\u00e9t\u00e9 intellectuelle et leurs produits, gr\u00e2ce \u00e0 une solution \u00e0 l\u2019\u00e9preuve des attaques physiques invasives : l&rsquo;authentificateur DS28E38 DeepCover de Maxim Integrated Products, Inc.\u2028<\/p>\n","protected":false},"author":9,"featured_media":137575,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-137574","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Circuits de s\u00e9curit\u00e9 impossible \u00e0 cloner ...<\/title>\n<meta name=\"description\" content=\"Les concepteurs peuvent d\u00e9sormais prot\u00e9ger facilement, de mani\u00e8re pro-active et \u00e0 peu de frais, leur propri\u00e9t\u00e9 intellectuelle et leurs produits, gr\u00e2ce...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/137574\/\" 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