{"id":231476,"date":"2014-11-12T23:00:00","date_gmt":"2014-11-12T23:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/authentificateur-securise-a-balise-nfc-rfid-et-a-moisson-denergie\/"},"modified":"2014-11-12T23:00:00","modified_gmt":"2014-11-12T23:00:00","slug":"authentificateur-securise-a-balise-nfc-rfid-et-a-moisson-denergie","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/authentificateur-securise-a-balise-nfc-rfid-et-a-moisson-denergie\/","title":{"rendered":"Authentificateur s\u00e9curis\u00e9 \u00e0 balise NFC\/RFID et \u00e0 moisson d\u2019\u00e9nergie"},"content":{"rendered":"<p>Les concepteurs peuvent d&eacute;sormais r&eacute;cup&eacute;rer des donn&eacute;es syst&egrave;me essentielles dans des appareils mobiles, m&ecirc;me si l&rsquo;alimentation principale du dispositif ma&icirc;tre n&rsquo;est pas fonctionnelle. Ses interfaces I2C et NFC\/RFID sans-fil, rendent cet authentificateur tr&egrave;s souple et extensible pour un large &eacute;ventail d&rsquo;applications. Il est particuli&egrave;rement int&eacute;ressant pour les applications qui n&eacute;cessitent une fonctionnalit&eacute; externe optionnelle, sans toutefois permettre l&rsquo;implantation d&rsquo;un connecteur comme, notamment, le transfert s&eacute;curis&eacute; sans-fil de donn&eacute;es m&eacute;dicales, ou le suivi d&rsquo;actifs.<br \/>\nCe circuit assure la collecte de donn&eacute;es, sans fil et sans contact, entre un h&ocirc;te et un dispositif esclave. Le moteur cryptographique SHA-256 int&eacute;gr&eacute; et &eacute;prouv&eacute; assure une authentification sym&eacute;trique de type &quot;d&eacute;fi-r&eacute;ponse&quot;, s&rsquo;appuyant sur une cl&eacute; secr&egrave;te, pour t&eacute;l&eacute;charger les donn&eacute;es. L&rsquo;interface I2C qui n&rsquo;a besoin d&rsquo;aucun contr&ocirc;leur pour sauvegarder les donn&eacute;es, peut se comporter comme un port ma&icirc;tre ou comme un port esclave lors des &eacute;changes de donn&eacute;es s&eacute;curis&eacute;s. Le composant dispose de plusieurs m&eacute;moires programmables qui donnent &agrave; l&rsquo;utilisateur la possibilit&eacute; de configurer un syst&egrave;me ma&icirc;tre\/esclave s&eacute;curis&eacute; et de param&eacute;trer des r&egrave;gles d&rsquo;utilisation en &eacute;mulant une EEPROM pour cr&eacute;er des compteurs non-r&eacute;initialisables. Les concepteurs peuvent &eacute;galement se servir de ce circuit pour param&eacute;trer facilement et intuitivement une connexion WiFi ou Bluetooth, pour enregistrer les codes d&rsquo;appairage de mani&egrave;re s&eacute;curis&eacute;e. Le dispositif est alors capable d&rsquo;assurer la s&eacute;curit&eacute; d&rsquo;un contr&ocirc;le d&rsquo;acc&egrave;s, d&rsquo;un suivi d&rsquo;actifs, d&rsquo;un syst&egrave;me d&rsquo;alerte ou de sortie de veille, ou l&rsquo;authentification de capteurs m&eacute;dicaux pour le transfert s&eacute;curis&eacute; de donn&eacute;es personnelles.<br \/>\nCet authentificateur n&rsquo;a pas besoin d&rsquo;alimentation externe. En effet, il est capable de moissonner l&rsquo;&eacute;nergie n&eacute;cessaire &agrave; l&rsquo;alimentation de dispositifs p&eacute;riph&eacute;riques, comme un capteur de temp&eacute;rature, par exemple, auquel il se connecte par l&rsquo;interface I2C. Gr&acirc;ce &agrave; l&rsquo;&eacute;nergie moissonn&eacute;e, il alimente le dispositif esclave pour en r&eacute;cup&eacute;rer les donn&eacute;es. Cette fonction peut aussi venir en renfort d&rsquo;une source existante comme dans le cas d&rsquo;appareils aliment&eacute;s par batterie pour en allonger la dur&eacute;e de vie.\n<\/p>\n<hr \/>\n<p>&quot;L&rsquo;authentificateur s&eacute;curis&eacute; MAX66242 DeepCover permet la collecte s&eacute;curis&eacute;e de donn&eacute;es sans contact, tout en &eacute;liminant le besoin de contact physique avec le dispositif,&quot; d&eacute;clare Hamed Sanogo, Directeur de Division Ex&eacute;cutif chez Maxim Integrated. &quot;La capacit&eacute; de moisson d&rsquo;&eacute;nergie permet aux utilisateurs de moissonner de l&rsquo;&eacute;nergie, qui autrement serait perdue, et de collecter de mani&egrave;re s&eacute;curis&eacute;e des donn&eacute;es se trouvant dans n&rsquo;importe quel mat&eacute;riel final, m&ecirc;me lorsque le syst&egrave;me principal n&rsquo;est pas aliment&eacute;.&quot;<br \/>\nD&rsquo;une int&eacute;gration &eacute;lev&eacute;e, ce composant supporte une authentification SHA-256 bidirectionnelle avec s&eacute;curit&eacute; mat&eacute;rielle &eacute;volu&eacute;e, un buffer SRAM 32 octets pour transfert de donn&eacute;es rapides I2C-RFID et deux interfaces &eacute;vitant le besoin de contr&ocirc;leur s&eacute;par&eacute;, le tout dans un bo&icirc;tier SO-8 ou TDFN-10, sp&eacute;cifi&eacute; sur la plage de temp&eacute;rature de -20 &deg;C &agrave; +85 &deg;C. <\/p>\n<p><a href=\"http:\/\/www.maximintegrated.com\/en\/products\/digital\/memory-products\/MAX66242.html\" target=\"_blank\" title=\"www.maximintegrated.com\/MAX66242\" rel=\"noopener\">www.maximintegrated.com\/MAX66242<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gr\u00e2ce \u00e0 ses interfaces de communication de donn\u00e9es I2C filaire et NFC\/RFID sans-fil, l\u2019authentificateur s\u00e9curis\u00e9 MAX66242 DeepCover de Maxim Integrated permet d&rsquo;authentifier, de configurer et de collecter les donn\u00e9es de n&rsquo;importe quel syst\u00e8me embarqu\u00e9, en se passant de microcontr\u00f4leur h\u00f4te et d\u2019alimentation.<\/p>\n","protected":false},"author":22,"featured_media":231477,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-231476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title><\/title>\n<meta name=\"description\" content=\"Gr\u00e2ce \u00e0 ses interfaces de communication de donn\u00e9es I2C filaire et NFC\/RFID sans-fil, l\u2019authentificateur s\u00e9curis\u00e9 MAX66242 DeepCover de Maxim...\" \/>\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\/231476\/\" \/>\n<meta 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