V2EX module-lwe

Module-LWE

Definition / 定义

Module-LWE(模组学习带噪声问题)是后量子密码学中的一个格密码基础困难问题。它是 LWE(Learning With Errors) 的推广:把未知量从“向量”推广到“模(module)”结构上,在保持可证明安全性的同时,常用于构造更高效的加密与密钥交换方案(例如某些 NIST 后量子候选/标准方案的设计思想)。

Pronunciation / 发音

/mdul l dblju i/

Examples / 例句

Module-LWE is a common assumption in post-quantum cryptography.
Module-LWE 是后量子密码学中常见的一种安全性假设。

Many schemes rely on the hardness of Module-LWE to argue that recovering the secret from noisy linear equations is computationally infeasible.
许多方案依赖 Module-LWE 的困难性来论证:从带噪线性方程中恢复秘密在计算上不可行。

Etymology / 词源

该术语由 module(模/模组)LWE(Learning With Errors,学习带噪声) 组合而成。LWE 最早作为格密码中的核心困难假设被系统提出;Module-LWE 则把问题放到“模”这一代数结构中,介于传统 LWE(更通用)与 Ring-LWE(更结构化)之间,常被视为在效率与安全结构之间的折中。

Related Words / 相关词

Literary Works / 文学作品

  • Oded Regev, On Lattices, Learning with Errors, Random Linear Codes, and Cryptography(2005)提出并奠定 LWE 作为密码学基础假设的地位(与 Module-LWE 密切相关的源头工作)。
  • CRYSTALS-Kyber 规范与相关论文/说明文档(NIST PQC 进程中广泛传播)常以 Module-LWE/Module-SIS 作为安全性讨论的核心背景与证明框架。
  • 与 “Module-LWE hardness / Module-LWE assumption(Module-LWE 困难性/假设)” 相关的学术论文与讲义(格密码与后量子密码课程资料中常见)。
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