摘要
针对当前航空甚高频(VHF,very high frequency)技术在报文传输方面存在明文传输、实体认证和消息认证体系不健全的问题,基于飞机通信寻址与报告系统(ACARS,aircraft communication addressing and reporting system)数据链并结合国产密码算法,提出了应用性较强的报文加密及数字认证解决方案。该方案对报文的正文内容进行加密处理,并利用公钥密码算法对密文进行签名以得到对应签名值,最后将密文和签名值按特定格式组合后填充至原报文正文部分。实验结果表明,对称加密算法在报文载荷大小、加解密时间等方面均优于非对称加密算法,更加适用于航空甚高频数据链;将加密算法和数字认证同时引入航空甚高频数据链通信技术中,可保证数据链的保密性、完整性,提高了报文传输的安全性,对航空信息安全具有重大意义。
Aiming at the problems of plaintext transmission,entity authentication and message authentication system in the current aviation very high frequency(VHF)technology in message transmission,a more applicable solution of message encryption and digital authentication is proposed based on the data link of aircraft communication addressing and reporting system(ACARS)and domestic SM algorithm.The scheme encrypts the body part of the message,and uses the public key cryptographic algorithm to sign the cipher text to obtain the corresponding signature value.The ciphertext and signature value will be combined in a specific format and then filled into the body part of the original message.Experiments show that using the symmetric encryption algorithm to process the message is superior to the asymmetric one in terms of payload size,encryption and decryption time,etc.,and is more suitable for aviation VHF data links.The introduction of encryption algorithm and digital authentication into aviation VHF data link communication technology can ensure the confidentiality and integrity of the data link,improve the security of message transmission,and is of great significance to aviation information security.
作者
岳猛
邹嘉旭
胡玥
郭江鑫
薛佳萌
曾令金
YUE Meng;ZOU Jiaxu;HU Yue;GUO Jiangxin;XUE Jiameng;ZENG Lingjin(College of Safety Science and Engineering,CAUC,Tianjin 300300,China;College of Electronic Information and Automation,CAUC,Tianjin 300300,China)
出处
《中国民航大学学报》
CAS
2022年第3期1-7,共7页
Journal of Civil Aviation University of China
基金
国家自然科学基金项目(62172418,U1933108,61802276)
中央高校基本科研业务费专项(3122020076)
天津市教委科学研究项目(2019KJ117)
大学生创新创业训练优秀培育项目(IEKCAUC2021004)。
关键词
航空甚高频
飞机通信寻址与报告系统
SM4
数字签名
对称加密算法
椭圆曲线
very high frequency(VHF)
aircraft communication addressing and reporting system(ACARS)
SM4
digital signature
symmetric encryption algorithm
elliptic curve
