Gate News 消息，2026年3月，谷歌正式公布其后量子密码学（PQC）迁移时间表，目标在2029年前完成关键系统升级。该计划标志着科技巨头对量子计算潜在威胁的应对进入明确执行阶段，也为全球数字基础设施提供了时间框架参考。
谷歌指出，此次时间表基于三大技术进展：量子计算硬件性能提升、量子纠错能力突破以及对量子算法资源需求的重新评估。随着这些因素逐步成熟，传统加密体系面临的风险正在被重新定价。尤其是“先存储后解密”攻击路径，即攻击者提前窃取加密数据，等待量子计算能力成熟后再进行破解，已成为现实威胁模型。
在应对策略上，谷歌优先推动身份验证系统向PQC过渡，强调数字签名机制的升级紧迫性。公司认为，相比数据加密本身，身份认证体系一旦被突破，将带来更直接的系统性风险。因此，其工程团队已被建议优先部署抗量子攻击的签名算法。
技术落地方面，Android 17已开始集成基于ML-DSA的后量子数字签名方案，该算法由美国国家标准与技术研究院（NIST）标准化，属于模块格密码体系的一部分。同时，Google Chrome及云服务体系也在同步推进PQC兼容能力，逐步构建完整的抗量子安全框架。
这一进展对区块链行业具有重要参考意义。当前，包括以太坊在内的主流公链也在规划长期升级路径，部分目标时间同样指向2029年前后。尽管市场普遍认为量子威胁仍有数年距离，但头部科技公司提前布局，意味着加密安全范式正进入新阶段。未来几年，围绕抗量子加密、链上资产安全以及数字身份体系的技术竞争或将明显加速。
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