{"id":74557,"date":"2026-04-22T08:54:52","date_gmt":"2026-04-22T01:54:52","guid":{"rendered":"https:\/\/hbbgroup.net\/coinbase-flags-proof-of-stake-chains-like-ethereum-solana-as-potential-quantum-risks\/"},"modified":"2026-04-22T08:54:52","modified_gmt":"2026-04-22T01:54:52","slug":"coinbase-flags-proof-of-stake-chains-like-ethereum-solana-as-potential-quantum-risks","status":"publish","type":"post","link":"https:\/\/hbbgroup.net\/zh\/coinbase-flags-proof-of-stake-chains-like-ethereum-solana-as-potential-quantum-risks\/","title":{"rendered":"Coinbase Flags Proof-of-Stake Chains Like Ethereum, Solana as Potential Quantum Risks"},"content":{"rendered":"<div>\n<div>\n<h4 color=\"#333\">In brief<\/h4>\n<ul>\n<li>A Coinbase advisory report says proof-of-stake blockchains may face additional exposure to quantum attacks because validator signatures secure the network.<\/li>\n<li>Wallet cryptography used to prove ownership of crypto is another long-term vulnerability.<\/li>\n<li>The report says current quantum computers cannot break modern cryptography, but urges the industry to begin preparing.<\/li>\n<\/ul>\n<\/div>\n<p><a href=\"http:\/\/decrypt.co\/?post_type=post&#038;p=5733\" target=\"_blank\" rel=\"noreferrer\"><span>Proof-of-stake<\/span><\/a> blockchains could face greater exposure to future quantum computing <a href=\"https:\/\/decrypt.co\/resources\/what-q-day-quantum-threat-bitcoin-explained\" target=\"_blank\" rel=\"noopener\">attacks<\/a> because the validator signatures used to secure those networks rely on cryptography that a powerful enough quantum computer could eventually break, according to a <a href=\"https:\/\/www.coinbase.com\/blog\/coinbase-quantum-advisory-council-publishes-position-paper-on-quantum-computing-and-blockchain\" target=\"_blank\" rel=\"noopener\">report<\/a> released by cryptocurrency exchange Coinbase.<\/p>\n<p>Released Tuesday by Coinbase\u2019s Independent Advisory Board on <a href=\"https:\/\/decrypt.co\/resources\/from-the-quantum-realm-to-reality-a-beginner-guide-to-the-computer-of-the-future\" target=\"_blank\" rel=\"noopener\">Quantum Computing<\/a> and Blockchain, the <a href=\"https:\/\/www.coinbase.com\/blog\/coinbase-quantum-advisory-council-publishes-position-paper-on-quantum-computing-and-blockchain\" target=\"_blank\" rel=\"noopener\">report<\/a> examines how advances in quantum computing could affect digital asset security.<\/p>\n<p>\u201cThe right time to prepare for a cryptographic transition is before it becomes urgent,\u201d a Coinbase Advisory Board spokesperson told <i>Decrypt<\/i>. \u201cOur view is that customer assets are safe today, but the industry should not confuse \u2018not imminent\u2019 with \u2018not important.\u2019\u201d<\/p>\n<p><a href=\"https:\/\/decrypt.co\/resources\/proof-of-work-vs-proof-of-stake\" target=\"_blank\" rel=\"noopener\">Proof-of-stake<\/a> networks like <a href=\"https:\/\/decrypt.co\/resources\/what-is-ethereum-quickly-explained-four-minute-guide\" target=\"_blank\" rel=\"noopener\">Ethereum<\/a> and <a href=\"https:\/\/decrypt.co\/resources\/what-is-solana-a-scalable-decentralized-network-for-dapps\" target=\"_blank\" rel=\"noopener\">Solana<\/a> rely on cryptographic signatures\u2014BLS signatures for Ethereum validators and Ed25519 signatures for Solana validators and users\u2014to help the network agree on blocks and maintain consensus.<\/p>\n<p>\u201cProof-of-stake chains have exposure in the signature schemes that validators use to secure the network,\u201d the advisory board said. \u201cThat means the challenge for proof-of-stake isn\u2019t just upgrading wallets; parts of the core consensus mechanism itself may need to be redesigned.\u201d<\/p>\n<p>The report pointed to recent work by Ethereum developers, including a <a href=\"https:\/\/decrypt.co\/359352\/vitalik-buterin-maps-quantum-upgrade-ethereum\" target=\"_blank\" rel=\"noopener\">proposal<\/a> by co-founder Vitalik Buterin in February to replace BLS validator signatures, KZG commitments, and ECDSA wallet signatures with quantum-resistant alternatives.<\/p>\n<p>Launched in January, Coinbase\u2019s Independent <a href=\"https:\/\/decrypt.co\/355565\/coinbase-advisory-board-quantum-computing-risks-bitcoin\" target=\"_blank\" rel=\"noopener\">Advisory Board<\/a> on Quantum Computing and Blockchain brings together academic and industry experts to study how advances in quantum computing could affect blockchain security and to outline long-term solutions. The council includes researchers from Stanford University, the University of Texas at Austin, the Ethereum Foundation, Eigen Labs, Bar-Ilan University, and the University of California, Santa Barbara.<\/p>\n<p>The council also identified digital signatures used by crypto wallets as another major long-term vulnerability. These signatures prove ownership of cryptocurrency and authorize transactions. If broken, attackers could impersonate wallet owners and move their funds. Wallets where public keys are visible on-chain are considered the most exposed. The report estimates that about 6.9 million Bitcoin fall into that category.<\/p>\n<p>The report says current cryptocurrency systems remain secure because quantum computers capable of breaking modern cryptographic signatures do not yet exist. Machines capable of doing so would need to be far more powerful than today\u2019s quantum systems.<\/p>\n<p>While much of the quantum threat discussion has focused on <a href=\"https:\/\/decrypt.co\/resources\/what-is-bitcoin-four-minute-instant-guide-explainer\" target=\"_blank\" rel=\"noopener\">Bitcoin<\/a>, the council said the network\u2019s core infrastructure\u2014including its mining process, hash functions, and historical ledger\u2014is not considered meaningfully vulnerable under current understanding.<\/p>\n<p>\u201cA quantum computer running Grover\u2019s algorithm could, in theory, solve the <a href=\"https:\/\/decrypt.co\/resources\/what-is-proof-of-work-how-the-bitcoin-network-is-maintained\" target=\"_blank\" rel=\"noopener\">proof-of-work<\/a> challenge faster than a classical computer,\u201d the advisory board said. \u201cHowever, at the scale of current proof-of-work puzzles, the overhead required to run Grover\u2019s algorithm on a quantum computer outweighs its theoretical advantage.\u201d<\/p>\n<p>Experts <a href=\"https:\/\/decrypt.co\/353161\/cardano-hoskinson-warns-crypto-becoming-post-quantum-will-require-trade-offs\" target=\"_blank\" rel=\"noopener\">warn<\/a> that moving blockchains to quantum-resistant cryptography presents technical challenges due to quantum-safe signatures being significantly larger than current ones, which could affect transaction speed, storage, and costs.<\/p>\n<p>\u201cThe prudent thing to do is to prepare Bitcoin and give people the option to migrate their keys to a quantum-ready format,\u201d Blockstream CEO Adam Back <a href=\"https:\/\/decrypt.co\/363680\/bitcoin-pioneer-adam-back-bernstein-quantum-threat-not-existential\" target=\"_blank\" rel=\"noopener\">told<\/a> <i>Bloomberg<\/i> in a recent interview. \u201cThe longer time that Bitcoin users have in order to migrate their keys for custodians and exchanges to move their coins to a quantum-ready format, the safer it will be.\u201d<\/p>\n<p>The report also raises the question of how networks should handle wallets that never upgrade. Lost keys, inactive accounts, and abandoned wallets mean some assets could remain exposed if quantum attacks become possible.<\/p>\n<p>\u201cA cryptographically relevant quantum computer would still require a major leap from today\u2019s systems, but upgrading wallets, exchanges, custodians, and decentralized networks is a multi-year effort,\u201d the advisory board said. \u201cThat\u2019s why we wanted to publish now: to ground the conversation in science rather than hype, outline what is actually at risk, and help the industry start making practical migration decisions early.\u201d<\/p>\n<div>\n<h3>Daily Debrief Newsletter<\/h3>\n<p>Start every day with the top news stories right now, plus original features, a podcast, videos and more.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>In brief A Coinbase advisory report says proof-of-stake blockchains may face additional exposure to quantum attacks because validator signatures secure [&hellip;]<\/p>","protected":false},"author":5,"featured_media":74559,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[220],"tags":[],"class_list":["post-74557","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tien-dien-tu"],"acf":[],"_links":{"self":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/posts\/74557","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/comments?post=74557"}],"version-history":[{"count":0,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/posts\/74557\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/media\/74559"}],"wp:attachment":[{"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/media?parent=74557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/categories?post=74557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hbbgroup.net\/zh\/wp-json\/wp\/v2\/tags?post=74557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}