Justin Thaler analyzed the threat of quantum computing to blockchains in blog, clarifying the different risks of encryption and signatures under HNDL attacks, and discussing the quantum security of zkSNARKs. Justin Thaler在博文中分析了量子计算对区块链的威胁,澄清了加密和签名在HNDL攻击下的不同风险,并讨论了zkSNARKs的量子安全性。
Notes
HNDL attacks make post-quantum encryption deployment urgent, but signatures are not affected, migration can be delayed
zkSNARKs' zero-knowledge properties are post-quantum secure, with no HNDL attack threat
Quantum computers cannot break encryption in the short term, CRQC may take decades to achieve
Post-quantum signatures have high performance overhead and implementation risks, requiring careful migration
Enterprises should prioritize solving more urgent security issues, such as code vulnerabilities
Hybrid encryption schemes (e.g., ML-KEM+X25519) can balance security and performance