6.7 Security 谷歌称，量子计算机用不到50万个量子比特即可破解比特币和以太坊，远低于此前估算。私钥可在9–12分钟内被破解，威胁交易安全。
谷歌最新研究显示，量子计算机破解比特币和以太坊加密算法的速度远超预期。研究指出，攻破基于椭圆曲线的区块链保护所需的物理量子比特不到50万个，仅为此前估算的1/20。 研究团队模拟了两种量子算法，结果显示可在大约9到12分钟内提取比特币私钥，这一速度与区块平均确认时间相当。攻击者有可能在交易过程中截获公钥，并在转账确认前迅速计算出私钥，从而盗取资金。 国际媒体也报道了类似观点。谷歌警告称，量子攻击的威胁比预期更近，建议加密社区加快向抗量子解决方案的过渡，以保障区块链资产安全。
Google's New Quantum Research Reignites Push To Harden Bitcoin
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