{"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":"Quantum Computer Cracks 15-Bit ECDSA Key Used in Bitcoin Cryptography"},"content":{"rendered":"<p>Researchers have published a paper documenting a successful factorization of a 15-bit elliptic curve digital signature algorithm (ECDSA) key using a quantum computer \u2014 the same algorithm underpinning Bitcoin&#8217;s transaction signing \u2014 reigniting debate over how soon the network&#8217;s security could be challenged by quantum hardware.<\/p><p>The achievement, while modest by classical standards, represents a meaningful proof-of-concept of quantum-native ECDSA cracking. The researchers used a 127-qubit processor to accomplish the task in under six hours.<\/p><p>&#8220;This is not an existential threat to Bitcoin today,&#8221; said Dr. Elena Kowalski, one of the paper&#8217;s authors. &#8220;Bitcoin uses 256-bit keys. What we demonstrated requires extrapolating by roughly 17 orders of magnitude.&#8221;<\/p><p>Bitcoin&#8217;s developer mailing list has seen renewed discussion of BIP-360, a proposal for quantum-resistant signature schemes. Ethereum&#8217;s roadmap already includes post-quantum cryptography as part of the &#8220;Purge&#8221; phase.<\/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 Mining Difficulty Rises 3.2% as Global Hash Rate Climbs to New High<\/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-Based DeFi Protocol Volo Loses $3.5 Million in Vault Exploit<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Researchers have published a paper documenting a successful factorization of a 15-bit elliptic curve digital signature algorithm (ECDSA) key using a quantum computer \u2014 the same algorithm underpinning Bitcoin&#8217;s transaction signing \u2014 reigniting debate over how soon the network&#8217;s security could be challenged by quantum hardware. The achievement, while modest by classical standards, represents a<\/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}]}}