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April 2026 2026 年四月

Wed

2026-04-01

Post-Quantum Blockchains with Agility in Mind Paper

Manuel B. Santos EVM Signature

Santos et al. proposed an EVM-compatible blockchain design with cryptographic agility in their paper, featuring CATX transaction format and consensus-layer key registration to address quantum threats. Santos等人在论文中提出了一种支持密码学敏捷性的EVM兼容区块链设计，包括CATX交易格式和共识层密钥注册机制，以应对量子计算威胁。

Key Points: 要点：

• Blockchains need long-term integrity, but cryptographic primitives may fail due to quantum advances. 区块链需长期完整性保障，但密码学原语可能因量子计算等进步而失效
• Existing systems lack comprehensive cryptographic agility support for seamless algorithm transitions. 现有系统缺乏全面的密码学敏捷性支持，难以在不中断运行下切换算法
• Proposed flexibility framework distributes algorithm choice across blockchain components. 提出灵活性框架，将算法选择分布到区块链各组件
• Designed CATX transaction format decouples body and signature for user-selected schemes. 设计CATX交易格式，分离交易体与签名，支持用户自选签名方案
• Consensus-layer key registration enables validator migration between schemes without hard forks. 共识层密钥注册机制允许验证者在签名方案间迁移，无需硬分叉
• Experimental evaluation shows CATX format introduces no measurable overhead with various signatures. 实验评估显示CATX格式在ECDSA、Falcon-512、ML-DSA签名下无显著开销