{"id":2241,"date":"2025-06-21T10:00:45","date_gmt":"2025-06-21T10:00:45","guid":{"rendered":"https:\/\/icobench.com\/fr\/?p=2241"},"modified":"2025-06-20T17:37:36","modified_gmt":"2025-06-20T17:37:36","slug":"data-leak-blockchain-identite-decentralisee-comme-solution","status":"publish","type":"post","link":"https:\/\/icobench.com\/fr\/news\/data-leak-blockchain-identite-decentralisee-comme-solution\/","title":{"rendered":"Data leak : blockchain et identit\u00e9 d\u00e9centralis\u00e9e comme solution"},"content":{"rendered":"<p>Invariablement, <strong>chaque ann\u00e9e est marqu\u00e9e par l\u2019annonce d\u2019une fuite massive de donn\u00e9es personnelles<\/strong>. Alors que l\u2019annonce d\u2019une fuite record de 16 milliards d\u2019identifiants d\u00e9fraie la chronique, la question de l\u2019identit\u00e9 d\u00e9centralis\u00e9e se pose \u00e0 nouveau.<\/p>\n<p>Est-il possible d\u2019utiliser la technologie blockchain, r\u00e9put\u00e9e infalsifiable, pour proposer des <strong>identit\u00e9s num\u00e9riques s\u00e9curis\u00e9es<\/strong> ? Et par-dessus tout, quels sont les cas concrets de cette utilisation de la blockchain ?<\/p>\n<h2><span id=\"des_blockchains_pour_les_humains\">Des blockchains pour les humains ?<\/span><\/h2>\n<p>D\u2019entr\u00e9e de jeu, l\u2019utilisation de la blockchain pour g\u00e9rer l\u2019identit\u00e9 num\u00e9rique des individus pr\u00e9sente de nombreux avantages. Contrairement aux solutions existantes, <strong>la blockchain pourrait pr\u00e9server la confidentialit\u00e9 des donn\u00e9es personnelles<\/strong>.<\/p>\n<p>De plus, elles permettraient un meilleur respect du droit \u00e0 la vie priv\u00e9e des individus. Eventuellement, les plateformes d\u2019Internet utiliseront ces <strong>identifiants uniques adoss\u00e9s \u00e0 une blockchain<\/strong>, de mani\u00e8re universelle.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-2244 aligncenter\" src=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Identite-Unique.jpg\" alt=\"Identit\u00e9 Unique\" width=\"1200\" height=\"600\" srcset=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Identite-Unique.jpg 1200w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Identite-Unique-300x150.jpg 300w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Identite-Unique-1024x512.jpg 1024w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Identite-Unique-768x384.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"><\/p>\n<p>Pour mettre en place de tels syst\u00e8mes, certains \u00e9l\u00e9ments sont indispensables :<\/p>\n<ul>\n<li>des <strong>donn\u00e9es d\u2019identification uniques<\/strong> \u00e0 chaque individu. Certains projets optent pour les documents \u00e9mis par les gouvernements. D\u2019autres encore misent sur les donn\u00e9es biom\u00e9triques comme une empreinte de r\u00e9tine ;<\/li>\n<li>des <strong>portefeuilles num\u00e9riques<\/strong> qui stockent les donn\u00e9es d\u2019identification uniques ;<\/li>\n<li>des <strong>\u00e9metteurs<\/strong> et <strong>v\u00e9rificateurs ind\u00e9pendants<\/strong> qui confirment l\u2019authenticit\u00e9 des donn\u00e9es introduites dans le syst\u00e8me ;<\/li>\n<li>une <strong>blockchain d\u00e9centralis\u00e9e<\/strong> et transparente qui sert de fondation aux syst\u00e8mes d\u2019identification ;<\/li>\n<li>des <strong>identifiants d\u00e9centralis\u00e9s uniques<\/strong> qui peuvent \u00eatre soumis par leurs d\u00e9tenteurs pour v\u00e9rifier leur identit\u00e9 dans le syst\u00e8me ;<\/li>\n<li>des <strong>identifiants cryptographiques<\/strong> g\u00e9n\u00e9r\u00e9s par le syst\u00e8me qui permettent d\u2019authentifier les identit\u00e9s.<\/li>\n<\/ul>\n<h2><span id=\"comment_fonctionne_lidentite_decentralisee\">Comment fonctionne l\u2019identit\u00e9 d\u00e9centralis\u00e9e ?<\/span><\/h2>\n<p>En th\u00e9orie, les identit\u00e9s d\u00e9centralis\u00e9es s\u2019apparentent \u00e0 des jetons uniques associ\u00e9s \u00e0 chaque individu. Ces jetons, m\u00eame lorsqu\u2019ils sont divulgu\u00e9s, ne contiennent <strong>aucune information personnelle sensible<\/strong>. Les individus conservent plut\u00f4t leurs donn\u00e9es sur des portefeuilles cryptographiques priv\u00e9s.<\/p>\n<p>Pour \u00eatre authentifi\u00e9, un individu n\u2019aurait alors qu\u2019\u00e0 communiquer son token pour qu\u2019il soit v\u00e9rifi\u00e9 par preuve cryptographique sur la blockchain. Une telle technologie pourrait permettre \u00e0 <strong>diff\u00e9rentes institutions de g\u00e9n\u00e9rer des tokens compatibles pour identifier des personnes<\/strong>.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-2245 aligncenter\" src=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Blockchain.jpg\" alt=\"Blockchain\" width=\"1200\" height=\"600\" srcset=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Blockchain.jpg 1200w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Blockchain-300x150.jpg 300w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Blockchain-1024x512.jpg 1024w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/06\/Blockchain-768x384.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"><\/p>\n<p>D\u00e9j\u00e0, les d\u00e9fenseurs du concept imaginent les nombreux cas d\u2019utilisation de cette technologie. Elle permettrait de s\u2019assurer qu\u2019un individu sur Internet est bel et bien un \u00eatre humain. Dans <strong>un monde qui est rapidement inond\u00e9 par l\u2019IA, c\u2019est une proposition qui suscite beaucoup d\u2019int\u00e9r\u00eat<\/strong>.<\/p>\n<p>Les universit\u00e9s ou les h\u00f4pitaux pourraient aussi g\u00e9n\u00e9rer <strong>des jetons sp\u00e9cifiques associ\u00e9s aux dipl\u00f4mes des apprenants<\/strong> ou aux <strong>dossiers m\u00e9dicaux des patients<\/strong>. La technologie pourrait aussi servir les int\u00e9r\u00eats des commer\u00e7ants lorsqu\u2019ils souhaitent limiter le nombre d\u2019achats par client.<\/p>\n<h2><span id=\"le_grand_filtre_entre_lhumain_et_la_machine\">Le grand filtre entre l\u2019humain et la machine<\/span><\/h2>\n<p>\u00c0 ce jour, certains projets d\u2019identit\u00e9 d\u00e9centralis\u00e9e ont d\u00e9j\u00e0 vu le jour. Un des exemples les plus notables est World ID qui se pr\u00e9sente comme <strong>une preuve anonyme d\u2019identit\u00e9 pour l\u2019\u00e8re de l\u2019IA<\/strong>. Un projet structur\u00e9 sur la super cha\u00eene <a href=\"https:\/\/icobench.com\/fr\/news\/circle-stablecoin-deploye-sur-world-chain\/\" rel=\"\">World Chain<\/a>.<\/p>\n<p><iframe title=\"Ep 3: How World ID can be used\" width=\"750\" height=\"422\" src=\"https:\/\/www.youtube.com\/embed\/Ndhcj67bV9w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>World ID cherche \u00e0 associer un identifiant unique \u00e0 chaque humain. Ici, le jeton est \u00e9mis d\u00e8s que l\u2019utilisateur v\u00e9rifie qu\u2019il est humain. Pour ce faire, il existe des centres de v\u00e9rification \u00e0 travers le monde. Le projet a adopt\u00e9 <strong>le scan r\u00e9tinien comme donn\u00e9e biom\u00e9trique unique<\/strong>.<\/p>\n<p>L\u2019application pr\u00e9voit \u00e9galement que les utilisateurs puissent stocker d\u2019autres informations d\u2019identification telles que leurs passeports. Le projet a d\u00e9velopp\u00e9 une application iOS et Android gr\u00e2ce \u00e0 laquelle les utilisateurs peuvent <strong>g\u00e9rer leur identit\u00e9<\/strong>, <strong>utiliser des actifs num\u00e9riques<\/strong>, <strong>profiter de diverses mini apps<\/strong> et <strong>obtenir des jetons Worldcoin<\/strong>.<\/p>\n<hr>\n<p>Sources : <a href=\"https:\/\/www.okta.com\/blog\/2021\/01\/what-is-decentralized-identity\/\" target=\"_blank\" rel=\"noopener noreferrer\">okta.com<\/a>, <a href=\"https:\/\/world.org\/fr-fr\/world-id\" target=\"_blank\" rel=\"noopener noreferrer\">world.org<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Invariablement, chaque ann\u00e9e est marqu\u00e9e par l\u2019annonce d\u2019une fuite massive de donn\u00e9es personnelles. Alors que l\u2019annonce d\u2019une fuite record&#8230;<\/p>\n","protected":false},"author":224,"featured_media":2242,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[7],"tags":[39],"class_list":["post-2241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-identite-decentralisee","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Data leak : blockchain et identit\u00e9 d\u00e9centralis\u00e9e comme solution<\/title>\n<meta name=\"description\" content=\"Dans un monde confront\u00e9 aux fuites de donn\u00e9es et inond\u00e9 par l&#039;IA, l&#039;identit\u00e9 d\u00e9centralis\u00e9e suscite un grand int\u00e9r\u00eat\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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