Safeguarding cryptocurrency by disclosing quantum vulnerabilities responsibly
Google Quantum AI published a white paper updating quantum resource estimates for breaking the 256-bit elliptic curve discrete logarithm problem (ECDLP-256): two circuits use under 1,200 logical qubits with 90 million Toffoli gates and under 1,450 logical qubits with 70 million Toffoli gates, cutting physical qubit requirements by roughly 20x versus previous estimates.
Why it matters: The Google white paper offers lower quantum resource estimates for breaking ECDLP-256 along with a responsible zero-knowledge-proof disclosure approach, letting the crypto community gauge the urgency of migrating to PQC.