现代电子技术2025，Vol.48Issue(23)：111-117,7.DOI:10.16652/j.issn.1004-373x.2025.23.016
基于改进SM4和Elgamal的民航数据链混合加密算法研究
Research on civil aviation data link hybrid encryption algorithm based on improved SM4 and Elgamal
摘要
Abstract
In the civil aircraft data link communication,a single-mode encryption algorithm struggles to meet the security requirements,commonly facing bottlenecks such as vulnerability to frequency analysis attacks and decreased processing capabilities of encryption models.In view of the above,this paper proposes an SM4 encryption algorithm(AT-HCSL)based on ECB-CBC hybrid encryption mode.This algorithm is combined with ECB and CBC modes to enhance the concealment and security of communication data,and then integrated with the Elgamal algorithm,leveraging Elgamal's homomorphic properties to further improve security and reduce computational overhead.Experimental results show that the diffusion of the improved algorithm increases by 175%～181.9%,its confusion improves by 94%～110%,and its overhead time reduces by 7.59%.The results demonstrate that the proposed hybrid encryption algorithm significantly improves the security and processing efficiency of civil aviation data link communication and can effectively carry out encrypted data link communication and ensure the safety of air-ground communication.关键词
SM4/混合加密模式/Elgamal/民航数据链/ECB模式/CBC模式/对称加密/非对称加密Key words
SM4/hybrid encryption mode/Elgamal/civil aviation data link/ECB mode/CBC mode/symmetric encryption/asymmetric encryption分类
电子信息工程引用本文复制引用
宋林峄,毛建华,王平..基于改进SM4和Elgamal的民航数据链混合加密算法研究[J].现代电子技术,2025,48(23):111-117,7.基金项目
运输航空可视导航技术与验证基金项目(2022YFB3904300) （2022YFB3904300）
