加密货币的新信任测试：哪些链真正做好了量子准备，哪些只是说说而已

Crypto’s quantum problem is no longer a distant thought experiment. With NIST finalizing standards, Coinbase warning of exposed addresses, and Google shrinking the resources needed to break today’s signatures, projects are being forced to show whether “quantum-ready” is a concrete plan or just a slogan. NIST finalized its first three post-quantum cryptography standards in August 2024 and told organizations to begin migrating immediately, with a 2035 deadline to deprecate quantum-vulnerable public-key algorithms from its guidelines. Coinbase's advisory board reached the same conclusion in a recent report, arguing that blockchains, wallet providers, exchanges, and custodians should prepare before urgency arrives, and that unresolved public decisions around migration are already deterring some investment. In March, Google set an internal PQC migration timeline for 2029 and updated its threat model to prioritize authentication services. Related Reading Why Google’s quantum research targeted Bitcoin first and why that matters now Google’s paper turns crypto into the clearest public test case for how quantum risk could hit real assets and live networks. Apr 1, 2026 · Gino Matos Those three directives share a structure that treats readiness as the operative matter. That convergence turns post-quantum planning from a debate in cryptography into a test of governance and credibility. Crypto wallet threat illustration Why this matters If your assets sit on a chain, in a wallet, or with a custodian that has no credible post-quantum plan, you are effectively trusting that today’s signatures stay unbroken for decades. As standards harden and vendors like Trezor and AWS productize quantum readiness, institutions and sophisticated users are already using these plans (or the lack of them) to decide where to keep capital. The full-stack migration problem Coinbase's paper maps the migration burden across a stack consisting of consensus layers, execution layers, wallets, exchanges, cus