V2EX lattice-based cryptography

Lattice-Based Cryptography

定义 (Definition)

格密码学 / 基于格的密码学:一类以“格(lattice)”上的计算难题为安全基础的密码技术体系。它被广泛视为后量子密码(Post-Quantum Cryptography, PQC)的重要候选方向之一,因为许多基于格的难题目前尚未被已知的量子算法(如 Shor 算法)有效攻破。常见构造包括加密、密钥交换、数字签名等。

发音 (Pronunciation, IPA)

/lts best krptrfi/

例句 (Examples)

Lattice-based cryptography is designed to remain secure even in a post-quantum world.
格密码学旨在在“后量子时代”依然保持安全性。

Because of advances in quantum computing, many standards bodies are evaluating lattice-based cryptography for future secure communication.
由于量子计算的发展,许多标准制定机构正在评估格密码学,以用于未来的安全通信。

词源 (Etymology)

  • lattice 原指“格子结构、网格”,来自中世纪拉丁语 lattis(与“条格、木条构成的网状结构”相关),在数学中引申为“由向量线性组合形成的点阵结构(格)”。
  • based 表示“以……为基础”。
  • cryptography 来自希腊语 kryptós(隐藏的)+ gráphein(书写),意为“用隐藏/编码方式书写”,即“密码学”。
    合起来,“lattice-based cryptography”字面义为“以格结构(及其难题)为安全基础的密码学”。

相关词 (Related Words)

文献作品示例 (Notable Works)

  • “Cryptography Based on Lattice Problems”(Ajtai,1996)早期奠基性工作之一,将密码构造与格难题紧密联系起来。
  • “On Lattices, Learning with Errors, Random Linear Codes, and Cryptography”(Regev,2005)提出并系统化 LWE 思想,对后续格密码影响极大。
  • “NTRU: A Ring-Based Public Key Cryptosystem”(Hoffstein, Pipher, Silverman,1998)经典的格相关公钥方案之一。
  • Post-Quantum Cryptography(Bernstein, Buchmann, Dahmen 编,2009)后量子密码领域的重要论文集/教材,其中包含大量格密码内容。
  • NIST Post-Quantum Cryptography 标准化文档与算法规范(如 CRYSTALS-Kyber、CRYSTALS-Dilithium 的规范文本)在标准化语境中频繁使用并定义该术语。
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