{"id":2700,"date":"2024-05-31T07:20:03","date_gmt":"2024-05-31T07:20:03","guid":{"rendered":"https:\/\/nfc-readers.com\/?p=2700"},"modified":"2024-05-31T07:20:03","modified_gmt":"2024-05-31T07:20:03","slug":"examination-of-the-security-measures-in-mifare-desfire","status":"publish","type":"post","link":"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/","title":{"rendered":"Prov\u011b\u0159en\u00ed bezpe\u010dnostn\u00edch opat\u0159en\u00ed v MIFARE DESFire"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"P\u0159epnout obsah\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">P\u0159epnout<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/#Introduction\" title=\"Zaveden\u00ed\">Zaveden\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/#Advanced_Encryption_Algorithms\" title=\"Pokro\u010dil\u00e9 \u0161ifrovac\u00ed algoritmy\">Pokro\u010dil\u00e9 \u0161ifrovac\u00ed algoritmy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/#Hierarchical_Key_Management_Schemes\" title=\"Hierarchick\u00e1 sch\u00e9mata spr\u00e1vy kl\u00ed\u010d\u016f\">Hierarchick\u00e1 sch\u00e9mata spr\u00e1vy kl\u00ed\u010d\u016f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/#Robust_Authentication_Mechanisms\" title=\"Robustn\u00ed autentiza\u010dn\u00ed mechanismy\">Robustn\u00ed autentiza\u010dn\u00ed mechanismy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/#Additional_Security_Features\" title=\"Dal\u0161\u00ed funkce zabezpe\u010den\u00ed\">Dal\u0161\u00ed funkce zabezpe\u010den\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/nfc-readers.com\/cs\/examination-of-the-security-measures-in-mifare-desfire\/#Conclusion\" title=\"Z\u00e1v\u011br\">Z\u00e1v\u011br<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"introduction\" class=\"header_36220 auto-hide-last-sibling-br\"><span class=\"ez-toc-section\" id=\"Introduction\"><\/span>Zaveden\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"auto-hide-last-sibling-br paragraph_1252f paragraph-element\"><a href=\"https:\/\/nfc-readers.com\/cs\/ic-reader\/desfire-ev248k\/\">MIFARE DESFire<\/a> EV3 p\u0159edstavuje p\u0159edn\u00ed technologii bezkontaktn\u00edch \u010dipov\u00fdch karet vyu\u017e\u00edvanou v mnoha aplikac\u00edch, jako jsou dopravn\u00ed syst\u00e9my, \u0159\u00edzen\u00ed p\u0159\u00edstupu a platebn\u00ed sektory. V posledn\u00edch letech se obavy ohledn\u011b jeho bezpe\u010dnosti staly v\u00fdrazn\u011bj\u0161\u00edmi, zejm\u00e9na s pokroky v \u00fato\u010dn\u00fdch technik\u00e1ch, v\u010detn\u011b diferenci\u00e1ln\u00ed anal\u00fdzy v\u00fdkonu (DPA) a \u00fatok\u016f postrann\u00edm kan\u00e1lem. Tento \u010dl\u00e1nek se sna\u017e\u00ed poskytnout vy\u010derp\u00e1vaj\u00edc\u00ed anal\u00fdzu bezpe\u010dnostn\u00edch prvk\u016f, kter\u00e9 jsou sou\u010d\u00e1st\u00ed MIFARE DESFire EV3. Pono\u0159\u00ed se do sv\u00fdch \u0161ifrovac\u00edch algoritm\u016f, p\u0159\u00edstup\u016f ke spr\u00e1v\u011b kl\u00ed\u010d\u016f, metod ov\u011b\u0159ov\u00e1n\u00ed a dal\u0161\u00edch integrovan\u00fdch bezpe\u010dnostn\u00edch atribut\u016f. D\u00e1le pojedn\u00e1v\u00e1 o siln\u00fdch a potenci\u00e1ln\u00edch slabin\u00e1ch t\u011bchto funkc\u00ed a nab\u00edz\u00ed vyhodnocen\u00ed jejich \u00fa\u010dinnosti proti \u0159ad\u011b sc\u00e9n\u00e1\u0159\u016f \u00fatoku.<\/div>\n<figure id=\"attachment_2056\" aria-describedby=\"caption-attachment-2056\" style=\"width: 353px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/nfc-readers.com\/cs\/ic-reader\/desfire-ev248k\/\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2056\" src=\"https:\/\/nfc-readers.com\/wp-content\/uploads\/2024\/04\/Hd98dfa9e20184d8c994bcf45c8c737c5a-300x300.jpg\" alt=\"MIFARE DESFire EV2\" width=\"353\" height=\"353\" srcset=\"https:\/\/nfc-readers.com\/wp-content\/uploads\/2024\/04\/Hd98dfa9e20184d8c994bcf45c8c737c5a-300x300.jpg 300w, https:\/\/nfc-readers.com\/wp-content\/uploads\/2024\/04\/Hd98dfa9e20184d8c994bcf45c8c737c5a-150x150.jpg 150w, https:\/\/nfc-readers.com\/wp-content\/uploads\/2024\/04\/Hd98dfa9e20184d8c994bcf45c8c737c5a-600x600.jpg 600w, https:\/\/nfc-readers.com\/wp-content\/uploads\/2024\/04\/Hd98dfa9e20184d8c994bcf45c8c737c5a-100x100.jpg 100w, https:\/\/nfc-readers.com\/wp-content\/uploads\/2024\/04\/Hd98dfa9e20184d8c994bcf45c8c737c5a.jpg 640w\" sizes=\"auto, (max-width: 353px) 100vw, 353px\" \/><\/a><figcaption id=\"caption-attachment-2056\" class=\"wp-caption-text\"><a href=\"https:\/\/nfc-readers.com\/cs\/ic-reader\/desfire-ev248k\/\">MIFARE DESFire EV2<\/a><\/figcaption><\/figure>\n<h2 id=\"advanced-encryption-algorithms\" class=\"header_36220 auto-hide-last-sibling-br\"><span class=\"ez-toc-section\" id=\"Advanced_Encryption_Algorithms\"><\/span>Pokro\u010dil\u00e9 \u0161ifrovac\u00ed algoritmy<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"auto-hide-last-sibling-br paragraph_1252f paragraph-element\">Jednou z kl\u00ed\u010dov\u00fdch bezpe\u010dnostn\u00edch funkc\u00ed MIFARE DESFire EV3 je vyu\u017eit\u00ed sofistikovan\u00fdch \u0161ifrovac\u00edch algoritm\u016f k ochran\u011b dat obsa\u017een\u00fdch na kart\u011b. Technologie vyu\u017e\u00edv\u00e1 128bitov\u00fd algoritmus Advanced Encryption Standard (AES), kter\u00fd je chv\u00e1len jako jeden z nejbezpe\u010dn\u011bj\u0161\u00edch \u0161ifrovac\u00edch standard\u016f, kter\u00e9 jsou dnes k dispozici. Algoritmus AES se pou\u017e\u00edv\u00e1 k \u0161ifrov\u00e1n\u00ed v\u0161ech dat p\u0159\u00edtomn\u00fdch na kart\u011b, v\u010detn\u011b u\u017eivatelsk\u00fdch dat, kryptografick\u00fdch kl\u00ed\u010d\u016f a dal\u0161\u00edch d\u016fle\u017eit\u00fdch informac\u00ed. Toto komplexn\u00ed \u0161ifrov\u00e1n\u00ed zaji\u0161\u0165uje, \u017ee i kdy\u017e jsou data na kart\u011b zachycena, z\u016fstanou bez p\u0159\u00edslu\u0161n\u00e9ho de\u0161ifrovac\u00edho kl\u00ed\u010de nesrozumiteln\u00e1.<\/div>\n<p>&nbsp;<\/p>\n<h2 id=\"hierarchical-key-management-schemes\" class=\"header_36220 auto-hide-last-sibling-br\"><span class=\"ez-toc-section\" id=\"Hierarchical_Key_Management_Schemes\"><\/span>Hierarchick\u00e1 sch\u00e9mata spr\u00e1vy kl\u00ed\u010d\u016f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"auto-hide-last-sibling-br paragraph_1252f paragraph-element\">Ned\u00edlnou sou\u010d\u00e1st\u00ed zabezpe\u010den\u00ed MIFARE DESFire EV3 je jeho hierarchick\u00fd syst\u00e9m spr\u00e1vy kl\u00ed\u010d\u016f. Tento p\u0159\u00edstup umo\u017e\u0148uje vytvo\u0159en\u00ed a pe\u010dlivou spr\u00e1vu v\u00edce kl\u00ed\u010d\u016f, z nich\u017e ka\u017ed\u00fd m\u00e1 r\u016fzn\u00e9 \u00farovn\u011b p\u0159\u00edstupov\u00fdch a bezpe\u010dnostn\u00edch opr\u00e1vn\u011bn\u00ed. Hierarchick\u00e1 povaha tohoto syst\u00e9mu je navr\u017eena tak, aby zabr\u00e1nila \u00fatok\u016fm, jako je kr\u00e1de\u017e kl\u00ed\u010d\u016f a neopr\u00e1vn\u011bn\u00fd p\u0159\u00edstup, a poskytuje v\u00edce vrstev zabezpe\u010den\u00ed. Odd\u011blen\u00edm \u00farovn\u00ed p\u0159\u00edstupu a zaji\u0161t\u011bn\u00edm toho, \u017ee operace s vy\u0161\u0161\u00edm zabezpe\u010den\u00edm budou m\u00edt p\u0159\u00edsn\u011bj\u0161\u00ed kontroly, se v\u00fdrazn\u011b sn\u00ed\u017e\u00ed riziko naru\u0161en\u00ed ohro\u017een\u00ed v\u0161ech \u00farovn\u00ed dat.<\/div>\n<p>&nbsp;<\/p>\n<h2 id=\"robust-authentication-mechanisms\" class=\"header_36220 auto-hide-last-sibling-br\"><span class=\"ez-toc-section\" id=\"Robust_Authentication_Mechanisms\"><\/span>Robustn\u00ed autentiza\u010dn\u00ed mechanismy<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"auto-hide-last-sibling-br paragraph_1252f paragraph-element\">MIFARE DESFire EV3 je tak\u00e9 vybavena impozantn\u00edmi autentiza\u010dn\u00edmi mechanismy zam\u011b\u0159en\u00fdmi na zamezen\u00ed neopr\u00e1vn\u011bn\u00e9ho p\u0159\u00edstupu ke kart\u011b. Technologie vyu\u017e\u00edv\u00e1 protokol vz\u00e1jemn\u00e9 autentizace, kdy se karta i \u010dte\u010dka mus\u00ed vz\u00e1jemn\u011b autentizovat, ne\u017e dojde k v\u00fdm\u011bn\u011b dat. Tento proces autentizace je zalo\u017een na mechanismu v\u00fdzva-odpov\u011b\u010f, kter\u00fd je speci\u00e1ln\u011b navr\u017een\u00fd k ochran\u011b proti \u00fatok\u016fm opakovan\u00e9ho p\u0159ehr\u00e1v\u00e1n\u00ed, \u00fatok\u016fm typu man-in-the-middle a dal\u0161\u00edm form\u00e1m zneu\u017e\u00edv\u00e1n\u00ed. Vz\u00e1jemn\u00e1 autentizace zaji\u0161\u0165uje, \u017ee ob\u011b strany zapojen\u00e9 do transakce jsou legitimn\u00ed, a t\u00edm posiluje celkov\u00fd bezpe\u010dnostn\u00ed r\u00e1mec.<\/div>\n<p>&nbsp;<\/p>\n<h2 id=\"additional-security-features\" class=\"header_36220 auto-hide-last-sibling-br\"><span class=\"ez-toc-section\" id=\"Additional_Security_Features\"><\/span>Dal\u0161\u00ed funkce zabezpe\u010den\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"auto-hide-last-sibling-br paragraph_1252f paragraph-element\">Krom\u011b \u0161ifrov\u00e1n\u00ed a spr\u00e1vy kl\u00ed\u010d\u016f obsahuje MIFARE DESFire EV3 n\u011bkolik dal\u0161\u00edch bezpe\u010dnostn\u00edch funkc\u00ed pro dal\u0161\u00ed pos\u00edlen\u00ed odolnosti v\u016f\u010di r\u016fzn\u00fdm metodologi\u00edm \u00fatok\u016f. Karta nap\u0159\u00edklad podporuje n\u00e1hodn\u00e9 generov\u00e1n\u00ed ID, \u010d\u00edm\u017e zvy\u0161uje soukrom\u00ed t\u00edm, \u017ee zabra\u0148uje sledov\u00e1n\u00ed pou\u017e\u00edv\u00e1n\u00ed karty. Krom\u011b toho existuj\u00ed sofistikovan\u00e9 mechanismy proti duplikaci, kter\u00e9 sni\u017euj\u00ed riziko klonov\u00e1n\u00ed karet. Tato dopl\u0148kov\u00e1 bezpe\u010dnostn\u00ed opat\u0159en\u00ed v kombinaci s hlavn\u00edmi funkcemi poskytuj\u00ed robustn\u00ed obrannou strategii, kter\u00e1 zachov\u00e1v\u00e1 integritu a bezpe\u010dnost dat b\u011bhem p\u0159enosu a provozn\u00edho pou\u017eit\u00ed.<\/div>\n<p>&nbsp;<\/p>\n<h2 id=\"conclusion\" class=\"header_36220 auto-hide-last-sibling-br\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Z\u00e1v\u011br<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"auto-hide-last-sibling-br paragraph_1252f paragraph-element\">v souhrnu <a href=\"https:\/\/nfc-readers.com\/cs\/ic-reader\/desfire-ev248k\/\">MIFARE DESFire EV3<\/a> se objevuje jako pozoruhodn\u011b bezpe\u010dn\u00e1 technologie \u010dipov\u00fdch karet, kter\u00e1 integruje pokro\u010dil\u00e9 \u0161ifrovac\u00ed algoritmy, p\u0159\u00edsn\u00e9 syst\u00e9my spr\u00e1vy kl\u00ed\u010d\u016f a odoln\u00e9 ov\u011b\u0159ovac\u00ed protokoly. Je v\u0161ak nezbytn\u00e9 uznat, \u017ee \u017e\u00e1dn\u00e1 bezpe\u010dnostn\u00ed technologie nen\u00ed zcela odoln\u00e1 v\u016f\u010di \u00fatoku. Vzhledem k tomu, \u017ee se neust\u00e1le vyv\u00edjej\u00ed nov\u00e9 \u00fato\u010dn\u00e9 techniky, je pro MIFARE DESFire EV3 z\u00e1sadn\u00ed, aby se vyv\u00edjel a p\u0159izp\u016fsoboval, aby si zachoval sv\u00e9 vysok\u00e9 bezpe\u010dnostn\u00ed standardy. D\u016fkladn\u00fdm pochopen\u00edm siln\u00fdch str\u00e1nek a omezen\u00ed bezpe\u010dnostn\u00edch funkc\u00ed MIFARE DESFire EV3 mohou z\u00fa\u010dastn\u011bn\u00e9 strany l\u00e9pe vyhodnotit jeho \u00fa\u010dinnost v r\u016fzn\u00fdch aplikac\u00edch a inovovat nov\u00e9 strategie ke zlep\u0161en\u00ed jeho bezpe\u010dnostn\u00ed pozice. Tato neust\u00e1l\u00e1 ostra\u017eitost a adaptace jsou z\u00e1sadn\u00ed pro zaji\u0161t\u011bn\u00ed toho, \u017ee MIFARE DESFire EV3 z\u016fstane d\u016fv\u011bryhodn\u00fdm \u0159e\u0161en\u00edm tv\u00e1\u0159\u00ed v tv\u00e1\u0159 neust\u00e1le se vyv\u00edjej\u00edc\u00edmu prost\u0159ed\u00ed hrozeb.<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction &nbsp; MIFARE DESFire EV3 represents a leading contactless smart card technology employed across a multitude of applications such as transportation systems, access control, and payment sectors. In recent years, concerns regarding its security have become more pronounced, particularly with advancements in attack techniques, including differential power analysis (DPA) and side-channel attacks. This article endeavors [&#8230;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2700","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/posts\/2700","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/comments?post=2700"}],"version-history":[{"count":1,"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/posts\/2700\/revisions"}],"predecessor-version":[{"id":2701,"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/posts\/2700\/revisions\/2701"}],"wp:attachment":[{"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/media?parent=2700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/categories?post=2700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nfc-readers.com\/cs\/wp-json\/wp\/v2\/tags?post=2700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}