面向智算网络的SCLOUD+后量子密钥封装适配与BW格优化研究

潘洁; 郗卓宁; 赵占军; 卜忠贵; 侯慧芳; 叶兰; 陈曦; 薛曌

doi:10.11959/j.issn.1000-0801.2025169

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面向智算网络的SCLOUD+后量子密钥封装适配与BW格优化研究

专栏 | 更新时间：2025-08-07

- 面向智算网络的SCLOUD+后量子密钥封装适配与BW格优化研究
- Research on SCLOUD+ post-quantum key encapsulation adaptation and BW lattice optimization for intelligent computing networks
- 电信科学 2025年41卷第7期页码：176-186
- 作者机构：
  
  1.中国移动通信集团设计院有限公司，北京 100080
  2.中国移动通信集团有限公司，北京 100032
- 作者简介：
  
  [ "潘洁（1978- ），女，中国移动通信集团设计院有限公司高级工程师，主要研究方向为算力网络安全和网络信息安全。" ]
  [ "郗卓宁（1980- ），男，中国移动通信集团有限公司高级工程师，主要研究方向为 IT信创技术、云计算及人工智能技术等。" ]
  [ "赵占军（1972- ），男，中国移动通信集团设计院有限公司网络所所长，主要研究方向为移动通信核心网、云计算及人工智能技术、算网安全等。" ]
  卜忠贵（1976- ），男，中国移动通信集团设计院有限公司正高级工程师，主要研究方向为移动通信核心网、云计算及人工智能技术、算网安全等。
  侯慧芳（1986- ），女，现就职于中国移动通信集团设计院有限公司，主要研究方向为基于算力网络的新一代网络安全关键技术。
  叶兰（1979- ），女，中国移动通信集团有限公司工程师，主要研究方向为计算机科学技术网络及数据安全。
  陈曦（1989- ），男，现就职于中国移动通信集团设计院有限公司，主要研究方向为网络与数据安全。
  薛曌（1992- ），女，现就职于中国移动通信集团设计院有限公司工程师，主要研究方向为网络安全监测、算力网络安全、商用密码。
- 基金信息：
- DOI：10.11959/j.issn.1000-0801.2025169
  中图分类号： TN918.4
- 收稿：2025-03-21，
  
  修回：2025-07-14，
  
  录用：2025-06-03，
  
  纸质出版：2025-07-20
- 稿件说明：
移动端阅览
潘洁,郗卓宁,赵占军等.面向智算网络的SCLOUD+后量子密钥封装适配与BW格优化研究[J].电信科学,2025,41(07):176-186.

PAN Jie,XI Zhuoning,ZHAO Zhanjun,et al.Research on SCLOUD+ post-quantum key encapsulation adaptation and BW lattice optimization for intelligent computing networks[J].Telecommunications Science,2025,41(07):176-186.
潘洁,郗卓宁,赵占军等.面向智算网络的SCLOUD+后量子密钥封装适配与BW格优化研究[J].电信科学,2025,41(07):176-186. DOI： 10.11959/j.issn.1000-0801.2025169.

PAN Jie,XI Zhuoning,ZHAO Zhanjun,et al.Research on SCLOUD+ post-quantum key encapsulation adaptation and BW lattice optimization for intelligent computing networks[J].Telecommunications Science,2025,41(07):176-186. DOI： 10.11959/j.issn.1000-0801.2025169.

摘要

现有主流后量子密钥封装机制，如基于模块格的密钥封装机制（module-lattice-based key encapsulation mechanism，ML-KEM），依赖于结构化格的模上容错学习（module learning with errors，Module-LWE）问题，其代数结构可能导致归约漏洞。聚焦于非结构化LWE框架下的SCLOUD+方案，其基于巴恩斯-沃尔（Barnes-Wall，BW）格的递归构造特性，通过高维格编码增益实现公钥与密文尺寸的显著压缩。基于该方案提出一种面向BW格的维度特化全展开递归消除技术，通过编译期常量优化、分层硬编码策略及单指令多数据（single-instruction multiple-data，SIMD）友好内存布局，将BW格在128维场景下的解码时钟周期从147 798降至30 107，为SCLOUD+后量子密钥封装机制提供了核心支撑。此研究为智算网络提供了一种兼顾高效性与抗量子安全性的轻量级密钥封装机制（key encapsulation mechanism，KEM）范式，为分布式联邦学习等低时延应用场景奠定了关键技术基础。

Abstract

The existing mainstream post-quantum key encapsulation mechanisms

such as the module-lattice-based key encapsulation mechanism (ML-KEM)

rely on the module learning with errors (Module-LWE) problem associated with structured lattices. The algebraic structure of these mechanisms may lead to reduction vulnerabilities. The SCLOUD+ scheme

which was focused on within the unstructured LWE framework

achieved significant compression of public key and ciphertext sizes through high-dimensional lattice coding gain

based on the recursive construction properties of the Barnes-Wall (BW) lattice. Moreover

a dimension-specific full-unfolding recursive elimination technique for BW lattices was proposed. Through compile-time constant optimization

hierarchical hard-coding strategies

and single-instruction

multiple-data (SIMD) friendly memory layouts

the decoding clock cycles of the BW lattice in a 128-dimensional scenario were reduced from 147 798 to 30 107

providing core support for the SCLOUD+ post-quantum key encapsulation mechanism. This research provided a lightweight key encapsulation mechanism (KEM) paradigm that balances efficiency and quantum-resistant security for intelligent computing networks

laying a crucial technical foundation for low-latency scenarios such as distributed federated learning.

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