V2EX ring-lwe

Ring-LWE

释义 Definition

Ring-LWE(Ring Learning With Errors,环上带误差学习问题)是一类基于格(lattice)的密码学困难问题:在某个“环”的代数结构中,给定带有随机“小误差”的样本,想从中恢复隐藏的秘密(或区分其与随机数据)被认为在计算上很难。它常用作后量子密码(抗量子攻击)方案的安全性基础。

发音 Pronunciation (IPA)

/r l dblju i/

例句 Examples

Ring-LWE is a common hardness assumption in post-quantum cryptography.
Ring-LWE 是后量子密码学中常见的困难性假设。

Many modern lattice-based schemes rely on Ring-LWE to argue security, because the added “errors” make recovering the secret computationally infeasible.
许多现代基于格的方案依赖 Ring-LWE 来论证安全性,因为加入的“误差”会使恢复秘密在计算上不可行。

词源 Etymology

Ring-LWE 由 ring(环) + LWE(Learning With Errors,带误差学习) 组合而来。LWE 最初描述在向量空间/线性代数背景下的“带噪声学习”困难问题;Ring-LWE 则把这一思想搬到更具结构性的多项式环等“环”环境中,以获得更高效率与更紧凑实现,同时仍保持被认为很强的安全性基础。

相关词 Related Words

文献与作品 Notable Works

  • Lyubashevsky, Peikert, Regev(2010):On Ideal Lattices and Learning with Errors over Rings(提出并系统化 Ring-LWE/理想格相关框架的经典论文)
  • Peikert(2016):A Decade of Lattice Cryptography(综述格密码十年发展,包含 Ring-LWE 等核心概念)
  • CRYSTALS-Kyber 规范与论文(基于(模)Ring-LWE 思想的 KEM 方案系列文档)
  • CRYSTALS-Dilithium 规范与论文(与(模)LWE/环结构密切相关的签名方案系列文档)
  • NIST Post-Quantum Cryptography(PQC)项目公开报告与提交材料(多处讨论 Ring-LWE 相关假设与方案)
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