{"id":18029,"date":"2025-09-04T10:00:54","date_gmt":"2025-09-04T10:00:54","guid":{"rendered":"https:\/\/99bitcoins.com\/fr\/?p=18029"},"modified":"2025-09-04T09:00:23","modified_gmt":"2025-09-04T09:00:23","slug":"menace-quantique-bitcoin-et-ethereum-soutenus-par-la-sec","status":"publish","type":"post","link":"https:\/\/99bitcoins.com\/fr\/actu\/menace-quantique-bitcoin-et-ethereum-soutenus-par-la-sec\/","title":{"rendered":"Menace quantique : Bitcoin et Ethereum soutenus par la SEC"},"content":{"rendered":"

La mont\u00e9e en puissance du calcul quantique fait planer une menace sans pr\u00e9c\u00e9dent<\/strong> sur la s\u00e9curit\u00e9 de Bitcoin, d\u2019Ethereum et de l\u2019ensemble des actifs num\u00e9riques.<\/p>\n

Aux \u00c9tats-Unis, la SEC doit agir. Le d\u00e9fi consiste \u00e0 anticiper le basculement technologique qui, du jour au lendemain<\/strong>, pourrait mettre \u00e0 nu la cryptographie prot\u00e9geant des milliards, voire des trillions de dollars<\/strong>.<\/p>\n

Menace quantique\u202f: la SEC somm\u00e9e de blind\u00e9 le c\u0153ur de la crypto avant le \u00ab\u202fQ-Day\u202f\u00bb<\/h2>\n

Actuellement, la \u00ab\u202fCrypto Assets Task Force\u202f\u00bb de la SEC examine la feuille de route baptis\u00e9e Post-Quantum Financial Infrastructure Framework <\/a>(PQFIF). Soumise par Daniel Bruno Corvelo Costa, cette proposition alerte clairement\u202f: une perc\u00e9e du calcul quantique<\/a> signerait la fin des protections actuelles pour Bitcoin<\/a>, Ether et d\u2019autres actifs.<\/p>\n

En effet, selon la note, si des CRQC (ordinateurs quantiques \u00e0 fort impact cryptographique) voient le jour, ils pourraient en quelques semaines briser les m\u00e9canismes de s\u00e9curit\u00e9 sur lesquels repose tout l\u2019\u00e9cosyst\u00e8me. L\u2019impact serait alors syst\u00e9mique\u202f<\/strong>: pertes massives pour les investisseurs, chaos chez les teneurs de comptes et disparition totale de la confiance dans les march\u00e9s.<\/p>\n

De surcro\u00eet, le sc\u00e9nario \u00ab\u202fHarvest Now, Decrypt Later\u202f\u00bb inqui\u00e8te\u202f: d\u00e9j\u00e0 aujourd\u2019hui, certains adversaires stockeraient des transactions chiffr\u00e9es pour les d\u00e9crypter aussit\u00f4t la technique quantique aboutie<\/strong>. Techniquement, il suffirait que cette rupture advienne avant 2028 pour que les d\u00e9g\u00e2ts soient irr\u00e9versibles.<\/p>\n

Fort logiquement, la proposition sugg\u00e8re un audit automatis\u00e9 des vuln\u00e9rabilit\u00e9s<\/strong> sur les plateformes, une migration par \u00e9tapes m\u00ealant cryptographie classique et post-quantique, et la priorit\u00e9 aux portefeuilles institutionnels\u202f<\/strong>: car qui veut voyager loin m\u00e9nage sa monture.<\/p>\n

Migration vers la r\u00e9silience quantique\u202f: roadmap, normalisation et d\u00e9fis op\u00e9rationnels<\/h2>\n

La feuille de route int\u00e8gre d\u00e9sormais les standards du NIST officialis\u00e9s en 2024<\/strong>, notamment FIPS 203 \u00e0 205 <\/a>ainsi que HQC, pr\u00e9vu en solution de secours. Conjointement, l\u2019exigence d\u2019une migration graduelle s\u2019affirme : les syst\u00e8mes les plus fragiles<\/strong>, tels que les exchanges<\/strong> et tr\u00e9soreries professionnelles<\/strong>, se trouvent en premi\u00e8re ligne.<\/p>\n

Sous ce prisme, la phase initiale pr\u00e9voit des \u00e9valuations automatiques et la s\u00e9lection des syst\u00e8mes les plus expos\u00e9s<\/strong>. Progressivement, il serait interdit d\u2019envoyer des fonds vers des adresses vuln\u00e9rables ; \u00e0 terme, les anciens sch\u00e9mas de signature seraient tout bonnement gel\u00e9s, rendant les fonds non d\u00e9pensables.<\/p>\n

En parall\u00e8le, les \u00e9quipes de d\u00e9veloppeurs Bitcoin ont r\u00e9cemment propos\u00e9 le BIP<\/strong> \u00ab\u202fPost Quantum Migration and Legacy Signature Sunset\u202f\u00bb. L\u2019id\u00e9e\u202f? Retirer les anciens sch\u00e9mas et pr\u00e9parer un basculement vers une structure r\u00e9siliente<\/strong>, d\u00e8s que la menace deviendra palpable.<\/p>\n

\"Generated<\/p>\n

La strat\u00e9gie est donc claire\u202f: pr\u00e9venir un \u00ab\u202fQ-Day\u202f\u00bb o\u00f9 la totalit\u00e9 de la crypto<\/a> serait mise \u00e0 nu, quitte \u00e0 \u00e9voluer vite pour garantir la p\u00e9rennit\u00e9 du syst\u00e8me.<\/p>\n

Autorit\u00e9s, d\u00e9veloppeurs et institutionnels\u202f: la marche forc\u00e9e vers la post-quantique<\/h2>\n

\u00c9videmment, ce d\u00e9fi ne concerne pas que les autorit\u00e9s am\u00e9ricaines. D\u00e9j\u00e0, certains \u00c9tats et grandes institutions dispersent strat\u00e9giquement leurs avoirs \u00e0 l\u2019image d\u2019El Salvador r\u00e9partissant 678 millions de dollars de Bitcoin sur 14 portefeuilles, limitant ainsi l\u2019exposition \u00e0 une br\u00e8che cryptographique soudaine<\/strong>.<\/p>\n

Dans le m\u00eame temps, sur le front technique, l\u2019avis du secteur converge avec celui de la Task Force\u202f:<\/strong> il ne s\u2019agit pas de savoir si, mais quand la cryptographie classique sera d\u00e9pass\u00e9e. Selon David Carvalho (Naoris Protocol), ce tournant pourrait s\u2019imposer d\u2019ici cinq ans<\/strong>, voire plus t\u00f4t, brisant ainsi l\u2019illusion d\u2019une invuln\u00e9rabilit\u00e9 perp\u00e9tuelle.<\/p>\n

En r\u00e9sum\u00e9, instaurer une r\u00e9silience face \u00e0 la menace quantique devient le garant ultime de la confiance<\/strong>, de l\u2019int\u00e9grit\u00e9 du march\u00e9 et de la s\u00e9curit\u00e9 pour tous les possesseurs d\u2019actifs num\u00e9riques. Ce virage, s’il \u00e9choue, exposera tout l<\/strong>\u2019\u00e9cosyst\u00e8me<\/strong> \u00e0 un risque syst\u00e9mique<\/strong> sans pr\u00e9c\u00e9dent et il vaut mieux pr\u00e9venir que gu\u00e9rir.<\/p>\n

\n

Sur le m\u00eame sujet :<\/strong><\/p>\n

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  • Le pari os\u00e9 du CEO de Crypto.com fait trembler le march\u00e9 crypto<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    La mont\u00e9e en puissance du calcul quantique fait planer une menace sans pr\u00e9c\u00e9dent sur la s\u00e9curit\u00e9 de Bitcoin, d\u2019Ethereum et de l\u2019ensemble des actifs num\u00e9riques. Aux \u00c9tats-Unis, la SEC doit agir. Le d\u00e9fi consiste \u00e0 anticiper le basculement technologique qui, du jour au lendemain, pourrait mettre \u00e0 nu la cryptographie prot\u00e9geant des milliards, voire des..<\/p>\n","protected":false},"author":135978,"featured_media":18030,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[6],"tags":[13],"coin":[15],"class_list":["post-18029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actu","tag-bitcoin"],"acf":[],"yoast_head":"\nQuantum et crypto : la SEC mobilis\u00e9e pour un Bitcoin post-quantique<\/title>\n<meta name=\"description\" content=\"SEC avertie\u202f: menace quantique sur Bitcoin. 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