水下声呐通信安全研究

Research on security of underwater sonar communication

随着人类对海洋的探索与开发,水下网络特别是水下通信技术逐渐成熟。水下通常使用声呐进行通信,而水下声呐通信信道具有传输速率低、误码率高、延时高和信道窄等缺陷,特别容易遭受恶意攻击。因此,必须重视水下声呐通信的安全问题。针对水下声呐通信系统安全防护等级较弱的现状,考虑水声通信的独特特性,概述了水下密码装备的未来发展趋势。进而,从保护数据机密性角度出发,设计了一型密码样机和一种轻量级密码算法,用于水下声呐通信加密技术的演示验证。测试结果表明:采用轻量级密码算法的密码样机非常适合水下通信安全防护,能够满足通信速率要求,这为未来水下声呐通信系统搭载密码系统奠定了一定研究基础。

With the exploration and development of the ocean,the underwater network,especially the underwater communication technology,is gradually mature.Sonar is usually used for underwater communication,and underwater sonar communication channel is vulnerable to malicious attack because of its disadvantages such as low transmission rate,high bit error rate,high delay and narrow channel.Therefore,attention must be paid to the safety of underwater sonar communication.Aiming at the current situation that the security protection level of underwater sonar communication system is weak,considering the unique characteristics of underwater acoustic communication,the future development trend of underwater cipher equipment is summarized.Furthermore,from the point of view of protecting data confidentiality,a cryptographic prototype and a lightweight cipher algorithm are designed to demonstrate and verify the encryption technology of underwater sonar communication.The test results show that the cryptographic prototype with lightweight cipher algorithm is very suitable for the security protection of underwater communication and can meet the requirements of communication speed,which lays a certain research foundation for the future underwater sonar communication system to carry cryptographic system.