关键词: ACARS, SM2, SM4, 加密, 解密, 数据安全

Abstract: ACARS, namely Aircraft Communication Addressing and Reporting System, is a digital data link system that transmits short messages between aircraft and ground station by radio. ACARS message contains a lot of important internal data, but the current ACARS message is directly transmitted without any processing, which will bring a variety of problems affecting the security of the system. For example, people can easily use the corresponding radio transceiver to obtain, monitor and even process ACARS message information, so as to obtain internal data, leading to data leakage. In order to ensure the data security of ACARS, domestic password is used to realize encryption. Real ACARS data is used to test, and the results show that the encryption method in this paper can achieve the purpose of data security and privacy protection of ACARS data link[1]. In this experiment, two national secret algorithms SM2 and SM4 are used to realize the encryption and decryption of ACARS message, which ensures the further improvement of the security of ACARS.

Key words: ACARS, SM2, SM4, encryption, decryption, data security