{"id":9577,"date":"2026-07-21T12:06:47","date_gmt":"2026-07-21T12:06:47","guid":{"rendered":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/07\/21\/le-debat-sur-la-mise-a-niveau-quantique-de-bitcoin-pourrait-bloquer-des-millions-de-btc\/"},"modified":"2026-07-21T12:06:47","modified_gmt":"2026-07-21T12:06:47","slug":"le-debat-sur-la-mise-a-niveau-quantique-de-bitcoin-pourrait-bloquer-des-millions-de-btc","status":"publish","type":"post","link":"https:\/\/global.livebitcoinnews.com\/fr\/2026\/07\/21\/le-debat-sur-la-mise-a-niveau-quantique-de-bitcoin-pourrait-bloquer-des-millions-de-btc\/","title":{"rendered":"Le d\u00e9bat sur la mise \u00e0 niveau quantique de Bitcoin pourrait bloquer des millions de BTC"},"content":{"rendered":"<p><em><strong>Le BIP-361 de Bitcoin propose une mise \u00e0 niveau quantique progressive qui pourrait geler les BTC vuln\u00e9rables si les d\u00e9tenteurs ne migrent pas \u00e0 temps.<\/strong><\/em><\/p>\n<p><span style=\"font-weight: 400\">Le d\u00e9bat quantique sur Bitcoin est pass\u00e9 de la th\u00e9orie au code de brouillon. Le BIP-361 pr\u00e9sente un plan progressif pour \u00e9loigner Bitcoin des signatures ECDSA et Schnorr h\u00e9rit\u00e9es apr\u00e8s l&rsquo;existence de sorties post-quantiques.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La proposition commencerait par emp\u00eacher les nouveaux <\/span><a href=\"https:\/\/www.livebitcoinnews.com\/strategy-sells-32-bitcoin-as-btc-slips-below-71-5k\/\"><span style=\"font-weight: 400\">BTC <\/span><\/a><span style=\"font-weight: 400\">d&rsquo;atterrir dans des types d&rsquo;adresses vuln\u00e9rables, puis resserrerait les r\u00e8gles de d\u00e9penses plus tard sous un jour de drapeau de cinq ans.\u00a0<\/span><\/p>\n<h2><b>Plan de migration quantique Bitcoin BIP-361<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Le BIP-361 appara\u00eet dans le d\u00e9p\u00f4t des BIPs Bitcoin en tant que brouillon de soft fork consensuel intitul\u00e9 \u00ab Post Quantum Migration and Legacy Signature Sunset \u00bb.\u00a0<\/span><\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">\ud83c\udfc6 BITCOIN IS PREPARING FOR THE QUANTUM ERA<\/p>\n<p>A new draft proposal, BIP-361, aims to protect Bitcoin from future quantum computing threats.<\/p>\n<p>Here&#39;s what it proposes:<\/p>\n<p>\ud83d\udc49 Stop new transfers to quantum-vulnerable addresses<br \/>\ud83d\udc49 Gradually phase out legacy ECDSA and Schnorr signatures\u2026 <a href=\"https:\/\/t.co\/a3zTmT42ai\">pic.twitter.com\/a3zTmT42ai<\/a><\/p>\n<p>&mdash; Bitfunded (@bitfunded) <a href=\"https:\/\/x.com\/bitfunded\/status\/2079275144837734526?ref_src=twsrc%5Etfw\">July 20, 2026<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.x.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p><span style=\"font-weight: 400\">Le brouillon nomme Jameson Lopp et cinq co-auteurs, et il d\u00e9pend encore d&rsquo;un futur BIP de signature post-quantique pour pouvoir avancer.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La phase A commencerait environ 160 000 blocs, soit environ trois ans, apr\u00e8s l&rsquo;activation.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">\u00c0 ce stade, les utilisateurs pourraient toujours d\u00e9penser \u00e0 partir de sorties h\u00e9rit\u00e9es, mais ils ne pourraient plus envoyer de nouveaux BTC vers des types d&rsquo;adresses vuln\u00e9rables aux attaques quantiques.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La phase B suivrait deux ans plus tard. Le brouillon indique que les n\u0153uds resserreraient alors les r\u00e8gles de v\u00e9rification pour les d\u00e9penses ECDSA et Schnorr via une voie de secours quantique s\u00fbre con\u00e7ue pour bloquer les vols.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La proposition pr\u00e9sente le changement comme un moyen de r\u00e9duire la surface d&rsquo;attaque avant qu&rsquo;une crise ne survienne. Elle traite \u00e9galement la migration comme une mise \u00e0 niveau longue du r\u00e9seau, et non comme un basculement soudain.\u00a0<\/span><\/p>\n<p><b><i>Lire aussi :<\/i><\/b><\/p>\n<p>https:\/\/www.livebitcoinnews.com\/trump-sets-2031-deadline-as-quantum-threat-looms-over-crypto\/<\/p>\n<h2><b>Pourquoi les cl\u00e9s publiques expos\u00e9es comptent pour le prix du Bitcoin<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Le brouillon indique que plus de 34 % du Bitcoin avaient r\u00e9v\u00e9l\u00e9 une cl\u00e9 publique en cha\u00eene au 1er mars 2026. Il soutient que ces pi\u00e8ces pourraient faire face \u00e0 un vol quantique si les machines atteignent le niveau n\u00e9cessaire.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Les auteurs avertissent \u00e9galement qu&rsquo;un attaquant pourrait agir discr\u00e8tement. Dans ce sc\u00e9nario, les BTC vol\u00e9s pourraient \u00eatre d\u00e9plac\u00e9s beaucoup plus tard, ce qui rendrait la menace plus difficile \u00e0 d\u00e9tecter en temps r\u00e9el pour le march\u00e9.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Le BIP-361 indique que la fen\u00eatre de migration est importante car les portefeuilles, les \u00e9changes, les d\u00e9positaires et les mineurs se d\u00e9placent g\u00e9n\u00e9ralement lentement.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Le brouillon indique qu&rsquo;une date limite claire donne \u00e0 l&rsquo;\u00e9cosyst\u00e8me le temps de s&rsquo;adapter avant que la pression ne s&rsquo;exerce sur le prix du Bitcoin et la confiance.\u00a0<\/span><\/p>\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\">\n<p lang=\"zxx\" dir=\"ltr\"><a href=\"https:\/\/t.co\/DXtE8dHCtM\">https:\/\/t.co\/DXtE8dHCtM<\/a><\/p>\n<p>&mdash; Wise Advice (@wiseadvicesumit) <a href=\"https:\/\/x.com\/wiseadvicesumit\/status\/2079121641691631822?ref_src=twsrc%5Etfw\">July 20, 2026<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.x.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p><span style=\"font-weight: 400\">Ce timing explique pourquoi le sujet s&rsquo;est rapidement r\u00e9pandu sur les flux crypto de X. Wise Advice et d&rsquo;autres comptes ont pouss\u00e9 le m\u00eame point central : Bitcoin pourrait avoir besoin de se pr\u00e9parer avant que le risque quantique ne passe de la th\u00e9orie \u00e0 la pratique.<\/span><\/p>\n<h2><b>Ce que les investisseurs en Bitcoin devraient surveiller ensuite<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Pour les investisseurs, le premier point est simple. <a href=\"https:\/\/www.bip361.org\/\">BIP-361<\/a> est toujours un brouillon, et il n&rsquo;est ni actif ni programm\u00e9 sur le r\u00e9seau.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Le deuxi\u00e8me point est tout aussi clair. La proposition d\u00e9pend d&rsquo;un futur standard de signature post-quantique, donc le d\u00e9bat en direct reste pour l&rsquo;instant au sein du d\u00e9veloppement de Bitcoin.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">La question du march\u00e9 tourne autour de la confiance, du timing de la migration et de la pr\u00e9paration des portefeuilles.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Si Bitcoin adopte \u00e9ventuellement une telle voie, la prochaine bataille portera sur qui met \u00e0 niveau en premier et sur la s\u00e9curit\u00e9 avec laquelle les pi\u00e8ces plus anciennes peuvent \u00eatre d\u00e9plac\u00e9es.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">Pour l&rsquo;instant, le brouillon a d\u00e9j\u00e0 fait un travail. Il a forc\u00e9 les investisseurs, d\u00e9veloppeurs et d\u00e9positaires de Bitcoin \u00e0 r\u00e9fl\u00e9chir au risque quantique avant que le r\u00e9seau n&rsquo;ait \u00e0 r\u00e9agir sous pression. <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le BIP-361 de Bitcoin propose une mise \u00e0 niveau quantique progressive qui pourrait geler les BTC vuln\u00e9rables si les d\u00e9tenteurs ne migrent pas \u00e0 temps. Le d\u00e9bat quantique sur Bitcoin est pass\u00e9 de la th\u00e9orie au code de brouillon. Le BIP-361 pr\u00e9sente un plan progressif pour \u00e9loigner Bitcoin des signatures ECDSA et Schnorr h\u00e9rit\u00e9es apr\u00e8s [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":9576,"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-9577","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>Le d\u00e9bat sur la mise \u00e0 niveau quantique de Bitcoin pourrait bloquer des millions de BTC - 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\/07\/21\/le-debat-sur-la-mise-a-niveau-quantique-de-bitcoin-pourrait-bloquer-des-millions-de-btc\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le d\u00e9bat sur la mise \u00e0 niveau quantique de Bitcoin pourrait bloquer des millions de BTC - France Live Bitcoin News\" \/>\n<meta property=\"og:description\" content=\"Le BIP-361 de Bitcoin propose une mise \u00e0 niveau quantique progressive qui pourrait geler les BTC vuln\u00e9rables si les d\u00e9tenteurs ne migrent pas \u00e0 temps. 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Le d\u00e9bat quantique sur Bitcoin est pass\u00e9 de la th\u00e9orie au code de brouillon. 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