{"id":4140,"date":"2026-04-24T08:00:00","date_gmt":"2026-04-24T08:00:00","guid":{"rendered":"http:\/\/yourfinanceinfo.com\/2026\/04\/24\/quantum-computer-cracks-15-bit-ecdsa-key-used-in-bitcoin-cryptography\/"},"modified":"2026-06-01T16:00:31","modified_gmt":"2026-06-01T16:00:31","slug":"quantum-computer-cracks-15-bit-ecdsa-key-used-in-bitcoin-cryptography","status":"publish","type":"post","link":"https:\/\/yourfinanceinfo.com\/sv\/quantum-computer-cracks-15-bit-ecdsa-key-used-in-bitcoin-cryptography\/","title":{"rendered":"Kvantdator kn\u00e4cker 15-bitars ECDSA-nyckel som anv\u00e4nds i Bitcoin-kryptografi"},"content":{"rendered":"<p>Forskare har publicerat en artikel som dokumenterar en lyckad faktorisering av en 15-bitars ECDSA-nyckel (elliptic curve digital signature algorithm) med hj\u00e4lp av en kvantdator \u2014 samma algoritm som ligger till grund f\u00f6r Bitcoin&#8217;s transaktionssignering \u2014 vilket \u00e5ter bl\u00e5ser liv i debatten om hur snart n\u00e4tverkets s\u00e4kerhet kan utmanas av kvanth\u00e5rdvara.<\/p><p>Bedriften, \u00e4ven om den \u00e4r blygsam enligt klassiska m\u00e5tt, utg\u00f6r ett betydelsefullt proof-of-concept f\u00f6r kvantnativt kn\u00e4ckande av ECDSA. Forskarna anv\u00e4nde en processor med 127 qubitar f\u00f6r att utf\u00f6ra uppgiften p\u00e5 under sex timmar.<\/p><p>&#8220;Det h\u00e4r \u00e4r inget existentiellt hot mot Bitcoin i dag,&#8221; sade dr Elena Kowalski, en av rapportens f\u00f6rfattare. &#8220;Bitcoin anv\u00e4nder 256-bitarsnycklar. Det vi demonstrerade kr\u00e4ver en extrapolering med ungef\u00e4r 17 storleksordningar.&#8221;<\/p><p>Bitcoins&#8217; utvecklarmejllista har sett f\u00f6rnyad diskussion om BIP-360, ett f\u00f6rslag p\u00e5 kvantresistenta signaturscheman. Ethereums&#8217; f\u00e4rdplan inkluderar redan postkvantkryptografi som en del av &#8220;Purge&#8221;-fasen.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Relaterade artiklar<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/yourfinanceinfo.com\/sv\/bitcoin-mining-difficulty-rises-3-2-as-global-hash-rate-climbs-to-new-high\/\">Bitcoin-brytningssv\u00e5righeter \u00f6kar med 3,2% d\u00e5 den globala hashhastigheten stiger till nya rekordniv\u00e5er.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/yourfinanceinfo.com\/sv\/sui-based-defi-protocol-volo-loses-3-5-million-in-vault-exploit\/\">Sui-baserat DeFi-protokoll Volo f\u00f6rlorar $3,5 miljoner i valvexploatering<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Forskare har publicerat en artikel som dokumenterar en lyckad faktorisering av en 15-bitars ECDSA-nyckel (elliptic curve digital signature algorithm) med hj\u00e4lp av en kvantdator \u2014 samma algoritm som ligger till grund f\u00f6r Bitcoin&#8217;s transaktionssignering \u2014 vilket \u00e5ter bl\u00e5ser liv i debatten om hur snart n\u00e4tverkets s\u00e4kerhet kan utmanas av kvanth\u00e5rdvara. Prestationen, \u00e4ven om den \u00e4r blygsam enligt klassiska m\u00e5tt, representerar en<\/p>","protected":false},"author":10,"featured_media":4139,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,35],"tags":[136,147,155,154],"class_list":["post-4140","post","type-post","status-publish","format-standard","has-post-thumbnail","category-bitcoin","category-technology","tag-bitcoin","tag-crypto-security","tag-cryptography","tag-quantum-computing"],"_links":{"self":[{"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/posts\/4140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/comments?post=4140"}],"version-history":[{"count":1,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/posts\/4140\/revisions"}],"predecessor-version":[{"id":4430,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/posts\/4140\/revisions\/4430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/media\/4139"}],"wp:attachment":[{"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/media?parent=4140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/categories?post=4140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yourfinanceinfo.com\/sv\/wp-json\/wp\/v2\/tags?post=4140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}