北京航空航天大学学报2026，Vol.52Issue(9)：3089-3099,11.DOI:10.13700/j.bh.1001-5965.2025.0283
基于广播代理重加密的低空无人机运行数据安全共享方案
Secure sharing scheme for low-altitude UAV operational data based on broadcast proxy re-encryption
摘要
Abstract
In the open and dynamic low-altitude intelligent network,unmanned aerial vehicle(UAV)operational data sharing faces security threats such as data eavesdropping,replay attacks,and unauthorized access,which may seriously jeopardize low-altitude operation security.It is crucial to guarantee the secure sharing of UAV operational data.Existing schemes utilize identity-based broadcast encryption to achieve point-to-multipoint data security sharing.Nevertheless,the sharing flexibility is sometimes restricted by these schemes'requirement to preset the sharing group capacity.Moreover,in the decryption process,the sharer needs to perform additional mathematical operations for other group members,which leads to a heavy burden of decryption computation.In this paper,we propose a secure sharing scheme for low-altitude UAV operational data based on broadcast proxy re-encryption.Through ciphertext re-encryption,the suggested technique creates a hybrid encryption mechanism that converts point-to-point sharing into point-to-multipoint sharing by utilizing identity-based broadcast encryption and symmetric encryption.In point-to-multipoint sharing,the scheme supports stateless data group sharing with fixed-length private keys and without preset group capacity,taking into account the security,flexibility,and efficiency of sharing.Experimental results show that in point-to-point sharing,the encryption and decryption computation overhead is fixed;in point-to-multipoint sharing,compared with the suboptimal scheme,the re-encryption key generation overhead is reduced by more than 40%,and the re-encryption ciphertext decryption algorithm costs about 3.6 milliseconds.关键词
无人机/数据共享/数据安全/加密算法/密文Key words
unmanned aerial vehicle/data sharing/data security/encryption algorithm/ciphertext分类
航空航天引用本文复制引用
周泽全,季晓海,罗喜伶,毛剑,王珺珺..基于广播代理重加密的低空无人机运行数据安全共享方案[J].北京航空航天大学学报,2026,52(9):3089-3099,11.基金项目
浙江省"尖兵"研发攻关计划(2022C01055) （2022C01055）
国家自然科学基金(62172027) （62172027）
浙江省自然科学基金(LZ23F020013) Zhejiang Provincial"JIANBING"Research and Development Project(2022C01055) （LZ23F020013）
National Natural Science Foundation of China(62172027) （62172027）
Zhejiang Provincial Natural Science Foundation of China(LZ23F020013) （LZ23F020013）
