{"id":12590,"date":"2026-08-31T05:36:23","date_gmt":"2026-08-31T05:36:23","guid":{"rendered":"https:\/\/cryptonews.uk.com\/?p=12590"},"modified":"2026-08-31T05:36:23","modified_gmt":"2026-08-31T05:36:23","slug":"ripple-prepares-xrp-ledger-for-a-post-quantum-future","status":"publish","type":"post","link":"https:\/\/cryptonews.uk.com\/?p=12590","title":{"rendered":"Ripple Prepares XRP Ledger for a Post-Quantum Future"},"content":{"rendered":"<p><\/p>\n<div>\n<div id=\"blockquote-block_fcaeb2b3a8e2172f3985508f0b8ea914\" class=\"blockquote-container\" style=\"border-color: #5100fc\">\n<div class=\"blockquote-text\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ripple\u2019s roadmap, published April 20 by senior director of engineering Ayo Akinyele, schedules candidate post-quantum signature schemes to run alongside elliptic-curve signatures on the XRP Ledger\u2019s Devnet in the second half of 2026.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The plan targets a network-wide amendment and full transition to post-quantum cryptography no later than 2028, with partner Project Eleven building a hybrid signing prototype and a quantum-safe custody wallet.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A \u201cQ-Day\u201d contingency would force what Ripple calls a hard shift, with classical signatures no longer accepted by the network and all funds moved to quantum-safe accounts.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">Ripple is working through a four-phase plan to ready the XRP Ledger (XRPL) for quantum computers, set out in an April 20 roadmap that puts candidate quantum-resistant signature schemes on the network\u2019s Devnet in the second half of 2026 and targets a full transition no later than 2028.<\/p>\n<p class=\"wp-block-paragraph\">Ripple senior director of engineering Ayo Akinyele published the roadmap three weeks after Google Quantum AI reported that the elliptic-curve cryptography securing crypto wallets could be broken by quantum circuits needing fewer than 1,450 logical qubits, running on fewer than 500,000 physical qubits, about a 20-fold cut to earlier resource estimates.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">\u201cThe threat has moved from theoretical to credible, and preparation timelines now matter\u201d, the Ripple post stated.<\/p>\n<p class=\"wp-block-paragraph\">Akinyele flagged the exposure directly: \u201cEvery time an account signs a transaction, its public key becomes visible onchain, and in a post-quantum world, that exposure could eventually be exploited.\u201d<\/p>\n<p class=\"wp-block-paragraph\">The post also cited the risk researchers call harvest now, decrypt later, where attackers collect visible on-chain key data today and wait for quantum hardware capable of cracking it.<\/p>\n<p class=\"wp-block-paragraph\"><strong>Read more: Bitcoin ETFs Extend Inflow Streak to Seven Days as Weekly Surge Tops $2.5B<\/strong><\/p>\n<h2 id=\"h-four-phases-ending-in-2028\" class=\"wp-block-heading\">Four Phases Ending in 2028<\/h2>\n<p class=\"wp-block-paragraph\">Ripple spent the first half of 2026 on a network-wide quantum risk assessment and on testing signature schemes recommended by NIST, the US standards body that finalised its first three post-quantum algorithms in August 2024.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">The current phase runs candidate schemes beside existing elliptic-curve signatures on Devnet, and the final phase would propose an amendment for native post-quantum cryptography, requiring coordination across XRPL\u2019s independent validators.<\/p>\n<p class=\"wp-block-paragraph\">Ripple confirmed it is working with post-quantum security firm Project Eleven on a hybrid signing proof of concept, validator-level testing, Devnet benchmarking and a quantum-safe custody wallet prototype.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">The company stated it is designing for cryptographic agility, with support for multiple NIST-standardised algorithms so the ledger can adapt as the post-quantum field matures.<\/p>\n<h2 id=\"h-emergency-path-if-q-day-comes-early\" class=\"wp-block-heading\">Emergency Path if Q-Day Comes Early<\/h2>\n<p class=\"wp-block-paragraph\">Phase one of the roadmap is a standing contingency for a sudden break in classical cryptography.\u00a0<\/p>\n<p class=\"wp-block-paragraph\">In that scenario, Ripple stated, \u201cclassical public-key signature standards are no longer accepted by the network, and funds must move to post-quantum secure accounts\u201d, with post-quantum zero-knowledge proofs under study so owners can prove control of existing keys without exposing them.<\/p>\n<p class=\"wp-block-paragraph\">XRPL already supports native key rotation, letting users retire vulnerable keys without changing accounts, though Ripple noted these building blocks \u201care not post-quantum solutions on their own\u201d.<\/p>\n<p class=\"wp-block-paragraph\"><strong>Read more: Revolut\u2019s EURR Stablecoin Goes Live in Limited Pilot, Takes Aim at Circle\u2019s EURC\u00a0<\/strong><\/p>\n<\/p><\/div>\n<p>Ledger,Ripple,XRP#Ripple #Prepares #XRP #Ledger #PostQuantum #Future1788154583<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ripple\u2019s roadmap, published April 20 by senior director of engineering Ayo Akinyele, schedules candidate post-quantum signature schemes to run alongside elliptic-curve signatures on the XRP Ledger\u2019s Devnet in the second half of 2026. The plan targets a network-wide amendment and full transition to post-quantum cryptography no later than 2028, with partner Project Eleven building a<\/p>\n","protected":false},"author":1,"featured_media":12591,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[2036,829,1841,3304,477,230],"class_list":["post-12590","post","type-post","status-publish","format-standard","has-post-thumbnail","category-bitcoin","tag-future","tag-ledger","tag-postquantum","tag-prepares","tag-ripple","tag-xrp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ripple Prepares XRP Ledger for a Post-Quantum Future - Crypto News: Latest Cryptocurrency News and Analysis<\/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:\/\/cryptonews.uk.com\/?p=12590\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ripple Prepares XRP Ledger for a Post-Quantum Future\" \/>\n<meta property=\"og:description\" content=\"Ripple\u2019s roadmap, published April 20 by senior director of engineering Ayo Akinyele, schedules candidate post-quantum signature schemes to run alongside elliptic-curve signatures on the XRP Ledger\u2019s Devnet in the second half of 2026. 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