{"id":3766,"date":"2026-05-06T21:04:32","date_gmt":"2026-05-06T21:04:32","guid":{"rendered":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/05\/06\/la-menace-quantique-pourrait-frapper-la-crypto-dun-seul-coup-previent-project-eleven\/"},"modified":"2026-05-06T21:04:32","modified_gmt":"2026-05-06T21:04:32","slug":"la-menace-quantique-pourrait-frapper-la-crypto-dun-seul-coup-previent-project-eleven","status":"publish","type":"post","link":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/05\/06\/la-menace-quantique-pourrait-frapper-la-crypto-dun-seul-coup-previent-project-eleven\/","title":{"rendered":"La menace quantique pourrait frapper la crypto \u00ab d\u2019un seul coup \u00bb, pr\u00e9vient Project Eleven"},"content":{"rendered":"<p><b><i>Project Eleven affirme que les progr\u00e8s rapides de l&rsquo;informatique quantique pourraient exposer les portefeuilles Bitcoin plus t\u00f4t que beaucoup ne le pensent.<\/i><\/b><span style=\"font-weight: 400\"><br \/>\n<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les risques de l&rsquo;informatique quantique pourraient arriver plus vite que beaucoup dans le secteur des cryptomonnaies ne le pr\u00e9voient. De nouvelles recherches de Project Eleven soutiennent que les progr\u00e8s pourraient s&rsquo;acc\u00e9l\u00e9rer soudainement apr\u00e8s des ann\u00e9es de changements visibles limit\u00e9s. Les pr\u00e9occupations portent sur les syst\u00e8mes de chiffrement qui prot\u00e8gent les portefeuilles Bitcoin et l&rsquo;infrastructure num\u00e9rique mondiale. Les groupes industriels discutent d\u00e9j\u00e0 de plans de migration avant que la menace ne devienne imminente.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">Les craintes de s\u00e9curit\u00e9 des cryptomonnaies augmentent alors que les chercheurs mettent en garde contre des avanc\u00e9es quantiques brutales<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Project Eleven a publi\u00e9 un rapport mercredi avertissant que le \u00ab Q-Day \u00bb pourrait arriver d\u00e8s 2030. <\/span><a href=\"https:\/\/blog.projecteleven.com\/posts\/the-quantum-threat-to-blockchains---2026-report\"><span style=\"font-weight: 400\">Les chercheurs<\/span><\/a><span style=\"font-weight: 400\"> de la start-up de s\u00e9curit\u00e9 post-quantique estiment qu&rsquo;une rupture du chiffrement moderne est plus probable qu&rsquo;improbable d&rsquo;ici 2033. Leurs estimations situent l&rsquo;\u00e9v\u00e9nement dans une fourchette de plusieurs ann\u00e9es de chaque c\u00f4t\u00e9.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les chercheurs soutiennent que le d\u00e9veloppement quantique pourrait ne pas suivre un calendrier r\u00e9gulier. Au lieu de cela, les am\u00e9liorations mat\u00e9rielles et algorithmiques pourraient s&rsquo;accumuler et provoquer des sauts de capacit\u00e9 brusques. Project Eleven a d\u00e9crit ce sch\u00e9ma comme \u00ab rien, puis tout d&rsquo;un coup \u00bb.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les progr\u00e8s r\u00e9cents ont renforc\u00e9 ces pr\u00e9occupations. Le mois dernier, un chercheur a extrait une cl\u00e9 de courbe elliptique de 15 bits \u00e0 l&rsquo;aide de mat\u00e9riel quantique. Les syst\u00e8mes <\/span><a href=\"https:\/\/www.livebitcoinnews.com\/doj-charges-venezuelan-national-in-1b-cryptocurrency-laundering-conspiracy\/\"><span style=\"font-weight: 400\">de cryptomonnaie<\/span><\/a><span style=\"font-weight: 400\"> actuels reposent encore sur un chiffrement 256 bits bien plus fort, laissant un \u00e9cart important avant que la s\u00e9curit\u00e9 au niveau Bitcoin ne soit menac\u00e9e.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Malgr\u00e9 tout, Project Eleven estime que pr\u00e8s de 6,9 millions de Bitcoins pourraient \u00eatre expos\u00e9s au risque quantique dans certaines conditions. Aux prix actuels, cette r\u00e9serve vaut plus de 560 milliards de dollars.<\/span><\/p>\n<h2><span style=\"font-weight: 400\">Dan Robinson sugg\u00e8re des preuves d&rsquo;horodatage pour les futures r\u00e9clamations Bitcoin r\u00e9sistantes au quantique<\/span><\/h2>\n<p><span style=\"font-weight: 400\">Les chercheurs ont \u00e9galement averti que les calendriers de migration comptent autant que la pr\u00e9paration technique. Leur rapport faisait r\u00e9f\u00e9rence \u00e0 l&rsquo;in\u00e9galit\u00e9 de Mosca, une th\u00e9orie selon laquelle les syst\u00e8mes sont d\u00e9j\u00e0 en retard si les mises \u00e0 niveau prennent plus de temps que les menaces n&rsquo;ont besoin d&rsquo;\u00e9merger.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les d\u00e9veloppeurs de cryptomonnaies ont commenc\u00e9 \u00e0 discuter des r\u00e9ponses possibles. Une proposition du chercheur de Paradigm, Dan Robinson, permettrait aux d\u00e9tenteurs de Bitcoin de prouver la propri\u00e9t\u00e9 de leur portefeuille d\u00e8s aujourd&rsquo;hui en utilisant des horodatages. Ces enregistrements pourraient ensuite \u00e9tayer les r\u00e9clamations sur des versions de Bitcoin r\u00e9sistantes au quantique sans exposer l&rsquo;activit\u00e9 du portefeuille sur la cha\u00eene.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Une autre proposition, le <\/span><a href=\"https:\/\/www.bip361.org\/\"><span style=\"font-weight: 400\">BIP-361<\/span><\/a><span style=\"font-weight: 400\">, soutenue par Jameson Lopp et d&rsquo;autres contributeurs, sugg\u00e8re un processus de migration de plusieurs ann\u00e9es vers des adresses r\u00e9sistantes au quantique.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La pression monte \u00e9galement en dehors des cryptomonnaies. <\/span><a href=\"https:\/\/www.livebitcoinnews.com\/new-google-research-shrinks-bitcoin-quantum-hack-timeline\/\"><span style=\"font-weight: 400\">Google<\/span><\/a><span style=\"font-weight: 400\"> a d\u00e9j\u00e0 avanc\u00e9 son calendrier et vise une transition vers la cryptographie r\u00e9sistante au quantique d&rsquo;ici 2029.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Project Eleven affirme que les progr\u00e8s rapides de l&rsquo;informatique quantique pourraient exposer les portefeuilles Bitcoin plus t\u00f4t que beaucoup ne le pensent. Les risques de l&rsquo;informatique quantique pourraient arriver plus vite que beaucoup dans le secteur des cryptomonnaies ne le pr\u00e9voient. De nouvelles recherches de Project Eleven soutiennent que les progr\u00e8s pourraient s&rsquo;acc\u00e9l\u00e9rer soudainement apr\u00e8s [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":3765,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-3766","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>La menace quantique pourrait frapper la crypto \u00ab d\u2019un seul coup \u00bb, pr\u00e9vient Project Eleven - France Live Bitcoin News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/global.livebitcoinnews.com\/fr\/2026\/05\/06\/la-menace-quantique-pourrait-frapper-la-crypto-dun-seul-coup-previent-project-eleven\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La menace quantique pourrait frapper la crypto \u00ab d\u2019un seul coup \u00bb, pr\u00e9vient Project Eleven - France Live Bitcoin News\" \/>\n<meta property=\"og:description\" content=\"Project Eleven affirme que les progr\u00e8s rapides de l&rsquo;informatique quantique pourraient exposer les portefeuilles Bitcoin plus t\u00f4t que beaucoup ne le pensent. 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Les risques de l&rsquo;informatique quantique pourraient arriver plus vite que beaucoup dans le secteur des cryptomonnaies ne le pr\u00e9voient. 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