gigazine.net/news/20260402-google-warns-crypto-quantum-risk
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量子コンピューターが「仮想通貨を保護する暗号」を想定よりはるかに少ないリソースで解読できるとGoogleの研究者が警告 - GIGAZINE
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This page reports that Google's research team warns that quantum computers could break elliptic curve cryptography protecting cryptocurrencies like Bitcoin with significantly fewer resources than previously assumed—approximately one-twentieth of the required quantum bits. The newly designed quantum circuit requires fewer than 500,000 physical qubits and implements Shor's algorithm more efficiently. Google plans to transition to post-quantum cryptography by 2029, urging the cryptocurrency community to develop migration plans urgently.
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