{"id":9709,"date":"2025-09-19T13:30:28","date_gmt":"2025-09-19T13:30:28","guid":{"rendered":"https:\/\/icobench.com\/fr\/?p=9709"},"modified":"2025-09-22T10:04:48","modified_gmt":"2025-09-22T10:04:48","slug":"bitcoin-2030-quantique-solana","status":"publish","type":"post","link":"https:\/\/icobench.com\/fr\/news\/bitcoin-2030-quantique-solana\/","title":{"rendered":"50\/50 d\u2019ici 2030 : l\u2019alerte quantique du fondateur de Solana pour Bitcoin"},"content":{"rendered":"<p data-start=\"79\" data-end=\"430\">Anatoly Yakovenko, cofondateur de Solana, estime qu\u2019il y a une chance sur deux qu\u2019une perc\u00e9e dans l\u2019informatique quantique survienne d\u2019ici 2030. Selon lui, <strong>Bitcoin doit r\u00e9agir rapidement<\/strong> et <strong>adopter des signatures r\u00e9sistantes au quantique<\/strong>. Il exhorte la communaut\u00e9 \u00e0 se pr\u00e9parer d\u00e8s maintenant ou risquer une faille majeure de s\u00e9curit\u00e9.<\/p>\n<h2 data-start=\"432\" data-end=\"496\"><span id=\"bitcoin_invite_a_migrer_vers_des_signatures_post-quantiques\">Bitcoin invit\u00e9 \u00e0 migrer vers des signatures post-quantiques<\/span><\/h2>\n<p data-start=\"498\" data-end=\"857\">Lors du All-In Summit 2025, Yakovenko a d\u00e9clar\u00e9 qu\u2019il voyait \u00ab\u00a050\/50\u00a0\u00bb de chances qu\u2019une avanc\u00e9e majeure intervienne dans les cinq prochaines ann\u00e9es. Si cela se produit, le syst\u00e8me actuel de signatures de Bitcoin, <strong>bas\u00e9 sur la courbe elliptique (ECDSA)<\/strong>, serait vuln\u00e9rable. Il recommande donc de migrer sans attendre vers des signatures dites post-quantiques.<\/p>\n<p data-start=\"859\" data-end=\"1354\">Aujourd\u2019hui, la s\u00e9curit\u00e9 de bitcoin repose sur des calculs impossibles \u00e0 r\u00e9soudre pour les ordinateurs classiques. Mais <a href=\"https:\/\/icobench.com\/fr\/news\/salvador-protege-reserve-bitcoin-menace-quantique\/\" rel=\"\">un ordinateur quantique<\/a> suffisamment puissant, utilisant l\u2019algorithme de Shor, <strong>pourrait briser cette barri\u00e8re<\/strong>.<\/p>\n<p data-start=\"859\" data-end=\"1354\">Cependant, des solutions existent d\u00e9j\u00e0. le NIST a valid\u00e9 plusieurs sch\u00e9mas de signatures r\u00e9sistants au quantique, comme <strong>Dilithium<\/strong> ou <strong>SPHINCS+<\/strong>. Le probl\u00e8me n\u2019est donc pas l\u2019absence de technologie, mais son int\u00e9gration au sein d\u2019un protocole mondial aussi lourd que Bitcoin.<\/p>\n<p data-start=\"1356\" data-end=\"1669\">Il ne s\u2019agit pas d\u2019une t\u00e2che facile. <strong>Changer l\u2019algorithme de signature<\/strong> impliquerait une mise \u00e0 jour majeure du protocole et l\u2019adoption par l\u2019ensemble des acteurs, des portefeuilles aux plateformes d\u2019\u00e9change. C\u2019est une op\u00e9ration complexe qui exige plusieurs ann\u00e9es de tests et de pr\u00e9paration.<\/p>\n<p data-start=\"1717\" data-end=\"1995\">Par ailleurs, tous les experts ne partagent pas le sentiment d\u2019urgence de Yakovenko. Adam Back, PDG de Blockstream, consid\u00e8re que les ordinateurs quantiques actuels <strong>ne sont pas une menace cr\u00e9dible<\/strong> pour Bitcoin. Selon lui, une telle avanc\u00e9e pourrait se produire, mais plut\u00f4t dans 20 ans.<\/p>\n<p><iframe title=\"Solana\u2019s Anatoly Yakovenko on Crypto's Next Era: Quantum, AI, and the Future of Money\" width=\"750\" height=\"422\" src=\"https:\/\/www.youtube.com\/embed\/KV_qe_YAGoQ?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 data-start=\"1997\" data-end=\"2287\">Samson Mow, fondateur de Jan3, <strong>juge lui aussi le risque r\u00e9el, mais lointain<\/strong>. Il estime que le calendrier est sans doute encore \u00e0 une d\u00e9cennie et qu\u2019entre-temps d\u2019autres syst\u00e8mes critiques tomberaient avant Bitcoin.<\/p>\n<p data-start=\"2289\" data-end=\"2652\">Entre les deux visions, certains rappellent que certaines anciennes adresses Bitcoin, dont la cl\u00e9 publique est d\u00e9j\u00e0 expos\u00e9e, seraient les premi\u00e8res \u00e0 \u00eatre menac\u00e9es. Cela concernerait une part non n\u00e9gligeable du stock total si la puissance quantique progressait rapidement. Les fonds rest\u00e9s intacts sur ces adresses dormantes pourraient alors devenir des cibles.<\/p>\n<h2 data-start=\"2654\" data-end=\"2694\"><span id=\"les_difficultes_dune_mise_a_niveau\">Les difficult\u00e9s d\u2019une mise \u00e0 niveau<\/span><\/h2>\n<p data-start=\"2696\" data-end=\"2998\">Modifier Bitcoin pour int\u00e9grer une cryptographie post-quantique ne se r\u00e9sume pas \u00e0 un simple changement de code. Il faudrait <strong>introduire de nouvelles adresses compatibles<\/strong> avec les nouveaux sch\u00e9mas de signature. Les utilisateurs devraient ensuite migrer leurs fonds, ce qui pourrait prendre des ann\u00e9es.<\/p>\n<p data-start=\"3000\" data-end=\"3342\">Un autre d\u00e9fi concerne les bitcoins perdus ou stock\u00e9s sur d\u2019anciennes adresses dont les propri\u00e9taires ne sont plus actifs. Ces fonds resteraient vuln\u00e9rables. Certains imaginent qu\u2019il faudra peut-\u00eatre d\u00e9pr\u00e9cier ces adresses un jour. C\u2019est-\u00e0-dire qu\u2019on les rendrait invalides pour prot\u00e9ger le reste du r\u00e9seau.<\/p>\n<p data-start=\"3344\" data-end=\"3628\"><span id=\"input-sentence~31\">Les solutions post-quantiques posent des contraintes techniques en plus.<\/span> <span id=\"input-sentence~32\">Leurs signatures sont souvent plus <strong>volumineuses que celles de l\u2019ECDSA<\/strong>, ce qui alourdit les blocs et ralentit le traitement.<\/span><\/p>\n<p data-start=\"3344\" data-end=\"3628\"><img decoding=\"async\" class=\"wp-image-9713 size-full aligncenter\" src=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/09\/securite-bitcoin.jpg\" alt=\"Leurs signatures post-quantique sont souvent plus volumineuses que celles de l\u2019ECDSA.\" width=\"1000\" height=\"666\" srcset=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/09\/securite-bitcoin.jpg 1000w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/09\/securite-bitcoin-300x200.jpg 300w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/09\/securite-bitcoin-768x511.jpg 768w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2025\/09\/securite-bitcoin-600x400.jpg 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\"><br>\n<span id=\"input-sentence~33\">En attendant, certaines bonnes pratiques consistent \u00e0 <strong>\u00e9viter de r\u00e9utiliser des adresses<\/strong>, afin de ne pas exposer inutilement les cl\u00e9s publiques.<\/span> <span id=\"input-sentence~34\">Les formats plus r\u00e9cents comme SegWit et Taproot sont \u00e9galement \u00e0 privil\u00e9gier.<\/span><\/p>\n<p><span id=\"input-sentence~35\">Il est aussi essentiel de <strong>suivre les travaux sur les signatures post-quantiques<\/strong> et les propositions d\u2019\u00e9volution du protocole.<\/span> <span id=\"input-sentence~36\">Les standards existent, mais leur int\u00e9gration dans un \u00e9cosyst\u00e8me aussi vaste que Bitcoin doit \u00eatre soigneusement planifi\u00e9e.<\/span><\/p>\n<p data-start=\"4194\" data-end=\"4563\"><a href=\"https:\/\/www.youtube.com\/watch?v=KV_qe_YAGoQ\" target=\"_blank\" rel=\"noopener noreferrer\">L\u2019avertissement de Yakovenko<\/a> a le m\u00e9rite de mettre la pression. Mais la plupart des experts estiment que le risque imm\u00e9diat reste limit\u00e9. La meilleure strat\u00e9gie est de pr\u00e9parer le terrain d\u00e8s maintenant, tester les solutions, coordonner la communaut\u00e9, et \u00eatre pr\u00eat le jour o\u00f9 l\u2019informatique quantique franchira vraiment un cap.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anatoly Yakovenko, cofondateur de Solana, estime qu\u2019il y a une chance sur deux qu\u2019une perc\u00e9e dans l\u2019informatique quantique survienne&#8230;<\/p>\n","protected":false},"author":241,"featured_media":9712,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[5],"tags":[15,276,277,278],"class_list":["post-9709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin","tag-bitcoin","tag-informatique","tag-quantique","tag-securite","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin 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