移动通信2026，Vol.50Issue(1)：25-34,10.DOI:10.3969/j.issn.1006-1010.20251106-0001
面向6G的无线物理层安全认证与密钥协商技术综述
A Survey of Physical Layer Secure Authentication and Key Agreement for 6G Wireless Communications
摘要
Abstract
As wireless mobile communication evolves toward the 6G,the massive connectivity of terminals for Internet-of-Everything and the trend of heterogeneous networking are driving an urgent demand for lightweight and low-overhead security solutions.Physical layer authentication and key agreement serve as key components in establishing wireless communication security,providing efficient pre-transmission protection:from the perspective of physical layer security,authentication first verifies the legitimacy of communicating entities,followed by key agreement to generate keys for encryption of user data.Physical layer authentication combines low latency with high reliability,making it suitable for resource-constrained smart scenarios,while physical layer key agreement leverages multi-dimensional features such as channel and device characteristics to generate keys,reducing dependence on complex cryptographic architectures.This paper first reviews the main research directions in physical layer authentication,including active schemes based on digital tag embedding and passive approaches based on channel or device features,explaining their basic principles,evolution,and performance metrics.It then introduces the fundamental concepts of physical layer key agreement,with a focus on efficient key generation schemes utilizing multi-dimensional feature extraction.Finally,in light of the lightweight security requirements in the 6G Internet of Everything context,the paper summarizes key challenges in physical layer authentication and key agreement and outlines future research directions and potential solutions.关键词
物理层安全/身份认证/内生特征/密钥协商/多维优势提取Key words
physical layer security/authentication/inherent features/key agreement/multi-dimensional advantage distillation分类
信息技术与安全科学引用本文复制引用
王俊杰,毛丹丹,韩刚涛,申凌峰,王宁..面向6G的无线物理层安全认证与密钥协商技术综述[J].移动通信,2026,50(1):25-34,10.基金项目
国家自然科学基金"基于大规模MIMO信号唯一性分解的工业物联网物理层认证与传输技术"(62101504) （62101504）
