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Fri 星期五
01.23
2026
Lether: Practical Post-Quantum Account-Based Private Blockchain Payments https://eprint.iacr.org/2026/076
Wang et al. proposed Lether, the first practical account-based private blockchain payment protocol based on post-quantum lattice assumptions, achieving efficient transactions via verifiable refresh mechanisms and optimized ZK proof systems. Wang等人在论文中提出了首个基于后量子格假设的实用账户式私有区块链支付协议Lether，通过可验证刷新机制和优化ZK证明系统实现高效交易。
Notes
- Enables practical post-quantum private payments using lattices.
- Solves key challenges in lattice-based homomorphic encryption and linkable ring signatures.
- Uses a lightweight refresh to avoid costly FHE bootstrapping.
- Batch-optimized LNP22 ZK proofs; ~68KB per transaction.
- Introduces definitions for real-world blockchain privacy.
- Proofs generate and verify in under a second on standard PCs.