Design and Challenges of Lattice-Based DH Like Key Exchange Protocols

WANG Ke; HAN Jiang; XIE Hui-qin; JIANG Hao-dong; CHEN Long; ZHANG Zhen-feng

doi:10.12263/DZXB.20250033

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Design and Challenges of Lattice-Based DH Like Key Exchange Protocols

SURVEYS AND REVIEWS | 更新时间：2025-08-18

- Design and Challenges of Lattice-Based DH Like Key Exchange Protocols
- ACTA ELECTRONICA SINICA Vol. 53, Issue 5, Pages: 1677-1691(2025)
- 作者机构：
  
  1.北京电子科技学院密码科学与技术系，北京 100070
  2.贵州大学公共大数据国家重点实验室，贵州贵阳 550025
  3.中国科学院大学，北京 100190
  4.中国科学院软件研究所可信计算与信息保障实验室，北京 100190
  5.河南省网络密码技术重点实验室，河南郑州 450001
- 作者简介：
- 基金信息：
  
  Basic Research Funds for Central Universities(3282023002);Open Fund of State Key Laboratory of Public Big Data(PBD2024-0513);Beijing Natural Science Foundation(4234084);The National Key Research and Development Program(2021YFB3100100)
- DOI：10.12263/DZXB.20250033
  CLC： TN918;TP309
- Received：08 January 2025，
  
  Revised：2025-04-20，
  
  Published：25 May 2025
- 稿件说明：
移动端阅览
王克, 韩将, 谢惠琴, 等. 基于格的类DH密钥交换协议设计与挑战[J]. 电子学报, 2025, 53(05): 1677-1691.

WANG Ke, HAN Jiang, XIE Hui-qin, et al. Design and Challenges of Lattice-Based DH Like Key Exchange Protocols[J]. Acta Electronica Sinica, 2025, 53(05): 1677-1691.
王克, 韩将, 谢惠琴, 等. 基于格的类DH密钥交换协议设计与挑战[J]. 电子学报, 2025, 53(05): 1677-1691. DOI：10.12263/DZXB.20250033

WANG Ke, HAN Jiang, XIE Hui-qin, et al. Design and Challenges of Lattice-Based DH Like Key Exchange Protocols[J]. Acta Electronica Sinica, 2025, 53(05): 1677-1691. DOI：10.12263/DZXB.20250033

摘要

迪菲-赫尔曼（Diffie-Hellman，DH）密钥交换协议，作为一种被广泛采用的密码学协议，在多种加密应用场景中发挥着关键作用.然而，鉴于量子计算技术的快速发展，DH协议面临量子攻击的重大威胁，迫切需要开发具备抗量子安全性的替代方案.其中，基于格的密钥交换协议是构建抗量子密钥交换协议的主要方法之一.本文首先系统梳理了基于格的类DH密钥交换协议的设计，然后指出了该类协议与传统DH协议的两大显著差异：其一，协议严格禁止密钥重用，以避免由此引发的两种潜在密钥恢复攻击，这一限制显著影响了协议的灵活性与效率；其二，协议通常需要额外的交互，这不仅增加了通信复杂度和延迟，还导致其在实际应用环境中的效率下降.这些差异使得基于格的类DH密钥交换协议在直接替代传统DH协议时难以继承全部优势.为减轻抗量子迁移的成本，并实现与现有系统的无缝对接，探索设计支持密钥重用的非交互式类DH密钥交换协议，已成为当前密码学领域的一个重要研究方向.此类协议旨在保留DH协议的高效性与易用性，同时增强对量子攻击的抵抗力.最后，通过对此类协议优势与挑战进行深入剖析，本文明确了未来研究的方向，旨在进一步优化协议设计，提升性能，推动抗量子迁移技术的发展.

Abstract

The Diffie-Hellman (DH) key exchange protocol

as a widely adopted cryptographic protocol

plays a key role in various encryption application scenarios. However

given the rapid development of quantum computing technology

The DH protocol faces significant threats from quantum attacks and there is an urgent need to develop alternative solutions with post-quantum security. Among them

lattice-based key exchange protocols are one of the main methods for building post-quantum key exchange protocols. This paper first systematically reviews the design of lattice-based DH-like key exchange protocols

and then points out two major distinctions between this type of protocol and the DH protocol: firstly

the protocol strictly prohibits key reuse to avoid two potential key recovery attacks that may arise from it

which significantly affects the flexibility and efficiency of the protocol; Secondly

protocols often require additional interactions

which not only increase communication complexity and latency

but also lead to a decrease in efficiency in practical application environments. These differences make it difficult for lattice based class DH key exchange protocols to inherit all the advantages when directly replacing traditional DH protocols. To reduce the cost of post-quantum migration and achieve seamless integration with existing systems

exploring the design of non-interactive class DH key exchange protocols that support key reuse has become an important research direction in the current field of cryptography. Such protocols aim to preserve the efficiency and usability of DH protocols while enhancing resistance to quantum attacks. Finally

through a thorough analysis of the advantages and challenges of such key exchange protocols

future research directions have been clarified. Aimed at further optimizing protocol design and improving performance

promote the development of post-quantum transfer technology.

关键词

Keywords

references

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