{"id":182884,"date":"2026-09-01T17:10:00","date_gmt":"2026-09-01T17:10:00","guid":{"rendered":"https:\/\/cryptonews.com\/fr\/news\/starkware-bitcoin-quantum-resistant-transaction-mainnet-test\/"},"modified":"2026-08-27T11:26:20","modified_gmt":"2026-08-27T11:26:20","slug":"bitcoin-starkware-reussit-une-transaction-quantum-resistante","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/news\/bitcoin-starkware-reussit-une-transaction-quantum-resistante\/","title":{"rendered":"Bitcoin : StarkWare r\u00e9ussit une transaction quantum-r\u00e9sistante"},"content":{"rendered":"<p class=\"wp-block-paragraph\">StarkWare a annonc\u00e9 que le chercheur Avihu Levy a test\u00e9 avec succ\u00e8s une transaction Bitcoin exp\u00e9rimentale r\u00e9sistante aux ordinateurs quantiques sur le r\u00e9seau principal (mainnet). <\/p><p class=\"wp-block-paragraph\">Il a \u00e9t\u00e9 rapport\u00e9 que cette transaction a d\u00e9pens\u00e9 une sortie de <strong>10 000 satoshis<\/strong> dans le bloc 964 199, sans modifier les r\u00e8gles de consensus de Bitcoin.<\/p><figure class=\"wp-block-embed is-type-rich is-provider-x wp-block-embed-x\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Bitcoin Completes First Quantum Resistant Transaction<br><br>StarkWare (<a href=\"https:\/\/x.com\/StarkWareLtd?ref_src=twsrc%5Etfw\">@StarkWareLtd<\/a>) says it has completed the first quantum resistant Bitcoin bitcoin:native transaction.<br><br>The method uses signature grinding to limit exposure while transactions wait in Bitcoin\u2019s mempool. It repeatedly\u2026 <a href=\"https:\/\/t.co\/UJlsofzjq7\">pic.twitter.com\/UJlsofzjq7<\/a><\/p>&mdash; BSCN (@BSCNews) <a href=\"https:\/\/x.com\/BSCNews\/status\/2092856595839648164?ref_src=twsrc%5Etfw\">August 27, 2026<\/a><\/blockquote><script async src=\"https:\/\/platform.x.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure><p class=\"wp-block-paragraph\">StarkWare a d\u00e9crit cette op\u00e9ration comme la premi\u00e8re transaction de ce genre. Le pool de minage <strong>MARA Pool<\/strong> a min\u00e9 le bloc apr\u00e8s avoir re\u00e7u la transaction directement via son service Slipstream, car le format non standard de l&rsquo;op\u00e9ration emp\u00eachait les n\u0153uds ordinaires de la relayer via le mempool public.<\/p><p class=\"wp-block-paragraph\">Nathan Jeffay, porte-parole de StarkWare, a pr\u00e9cis\u00e9 que la transaction a co\u00fbt\u00e9 entre <strong>150 et 200 dollars<\/strong> en calcul informatique, et l&rsquo;entreprise a indiqu\u00e9 que le processus a dur\u00e9 plusieurs heures. Cette d\u00e9monstration prouve qu&rsquo;il est possible de prot\u00e9ger une sortie unique sous les r\u00e8gles actuelles de Bitcoin, bien qu&rsquo;\u00e0 un co\u00fbt op\u00e9rationnel et informatique mat\u00e9riel.<\/p><h2 class=\"wp-block-heading\">Fonctionnement de la transaction Quantum Bitcoin de StarkWare<\/h2><span class=\"replacer\"><\/span><p class=\"wp-block-paragraph\">Le sch\u00e9ma <strong>Quantum-Safe Bitcoin (QSB)<\/strong> de Levy, propos\u00e9 initialement en avril, combine des signatures \u00e0 usage unique bas\u00e9es sur le hachage avec des recherches computationnelles qui lient l&rsquo;autorisation \u00e0 une transaction sp\u00e9cifique.<\/p><p class=\"wp-block-paragraph\"> Cette structure vise \u00e0 emp\u00eacher la contrefa\u00e7on, m\u00eame si un ordinateur quantique suffisamment puissant parvenait \u00e0 briser la cryptographie sur les courbes elliptiques utilis\u00e9e par Bitcoin.<\/p><figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2026\/08\/content-img-1-32.jpg\" alt=\"\"><\/figure><p>En mars, des chercheurs de <strong>Google<\/strong> ont estim\u00e9 qu&rsquo;un ordinateur quantique performant pourrait th\u00e9oriquement d\u00e9river une cl\u00e9 priv\u00e9e Bitcoin en 9 \u00e0 12 minutes apr\u00e8s la publication de la cl\u00e9 publique. Selon Google, cela permettrait \u00e0 un attaquant de remplacer une transaction en attente durant la fen\u00eatre de confirmation de Bitcoin.<\/p><p>La proposition de Levy en avril estimait que la g\u00e9n\u00e9ration d&rsquo;une transaction n\u00e9cessiterait entre 75 et 150 dollars de calcul GPU ; StarkWare a finalement chiffr\u00e9 le co\u00fbt de la transaction finalis\u00e9e entre <strong>150 et 200 dollars<\/strong>.<\/p><p>Le QSB s&rsquo;applique aux transactions Bitcoin individuelles plut\u00f4t que de mettre \u00e0 jour la cryptographie sur l&rsquo;ensemble du r\u00e9seau. Il permet de d\u00e9placer des fonds vers une sortie b\u00e9n\u00e9ficiant d&rsquo;une protection suppl\u00e9mentaire sans changer le protocole Bitcoin, mais il ne prot\u00e8ge pas les pi\u00e8ces dont les cl\u00e9s publiques ont \u00e9t\u00e9 expos\u00e9es avant la migration. Dans ce cas, un attaquant potentiel pourrait avoir le temps d&rsquo;analyser ces cl\u00e9s avant l&rsquo;envoi d&rsquo;une transaction prot\u00e9g\u00e9e.<\/p><p>La classification de la transaction comme \u00ab\u00a0non standard\u00a0\u00bb selon la politique de relais par d\u00e9faut de <strong>Bitcoin Core<\/strong> constitue une contrainte pratique. Les n\u0153uds ordinaires ne propagent pas la transaction avant sa confirmation, elle doit donc \u00eatre soumise directement \u00e0 un mineur coop\u00e9rant via un service tel que Slipstream de MARA. Cette m\u00e9thode n\u00e9cessite par cons\u00e9quent des transactions pr\u00e9par\u00e9es et un acc\u00e8s direct aux mineurs.<\/p><p>Le PDG de StarkWare, <strong>Eli Ben-Sasson<\/strong>, a d\u00e9clar\u00e9 que le QSB offre un filet de s\u00e9curit\u00e9 en attendant le d\u00e9veloppement de protections au niveau du protocole. La d\u00e9monstration \u00e9tablit une solution de contournement sous les r\u00e8gles existantes, plut\u00f4t que de modifier la cryptographie sous-jacente de Bitcoin \u00e0 l&rsquo;\u00e9chelle du r\u00e9seau.<\/p><h2>L&rsquo;alternative au niveau du protocole<\/h2><span class=\"replacer\"><\/span><p>Les d\u00e9veloppeurs de Bitcoin examinent s\u00e9par\u00e9ment d&rsquo;autres propositions, notamment le <strong>BIP-360<\/strong>, un soft fork propos\u00e9 qui introduirait un type de sortie Pay-to-Merkle-Root tout en supprimant la d\u00e9pense par cl\u00e9 de Taproot, vuln\u00e9rable au quantique. Cette approche n\u00e9cessiterait une coordination et une activation \u00e0 l&rsquo;\u00e9chelle du r\u00e9seau mondial.<\/p><p>Le QSB n&rsquo;attend pas de changement de protocole. Le test sur le mainnet d\u00e9montre que les r\u00e8gles de consensus actuelles de Bitcoin peuvent accommoder une forme de d\u00e9pense r\u00e9sistante au quantique, tandis que des protections plus larges au niveau du protocole restent \u00e0 l&rsquo;\u00e9tude.<\/p>","protected":false},"excerpt":{"rendered":"<p>StarkWare a annonc\u00e9 que le chercheur Avihu Levy a test\u00e9 avec succ\u00e8s une transaction Bitcoin exp\u00e9rimentale r\u00e9sistante aux ordinateurs quantiques sur le r\u00e9seau principal (mainnet). Il a \u00e9t\u00e9 rapport\u00e9 que cette transaction a d\u00e9pens\u00e9 une sortie de 10 000 satoshis dans le bloc 964 199, sans modifier les r\u00e8gles de consensus de Bitcoin.StarkWare a d\u00e9crit [&hellip;]<\/p>\n","protected":false},"author":759,"featured_media":182882,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"editors":[2551],"sponsored_companies":[],"class_list":["post-182884","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","editors-julien-leroy"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bitcoin : StarkWare r\u00e9ussit une transaction quantum-r\u00e9sistante<\/title>\n<meta name=\"description\" content=\"StarkWare r\u00e9alise la 1\u00e8re transaction Bitcoin quantum-r\u00e9sistante sur le 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