【摘要】 为应对舰船异构通信链路中身份窃取与高丢包率等安全挑战，提出舰船异构通信链路的安全认证与数据加密传输方法。构建包含卫星、短波与超短波通信异构链路模型，分析海上视距与舱内传播损耗，建立可靠物理链路。采用SM9算法实现基于身份无证书认证，结合DH密钥协商与SM9加密机制，构建双向认证与数据加密传输通道。实验表明该方法加密强度达256～512比特，抗攻击能力为1 500～3 000次/s，丢包率始终低于10%，在近海、远海编队与舰机互联等典型场景中，数据传输速率达35.78～50.25 Mbps，端到端延迟为85.3～120.5 ms，抖动为3.8～5.2 ms，有效实现高安全、低延迟舰船异构通信体系，为复杂海洋任务提供可靠通信支撑。更多还原

【Abstract】 To address security challenges such as identity theft and high packet loss rate in heterogeneous communication links of ships, a security authentication and data encryption transmission method for heterogeneous communication links of ships is proposed. Construct a heterogeneous link model including satellite, shortwave and ultrashort wave communications, analyze the line-of-sight at sea and the propagation loss inside the cabin, and establish a reliable physical link. The SM9 algorithm is adopted to implement identity-based certificateless authentication. Combined with DH key agreement and SM9 encryption mechanism, a two-way authentication and data encryption transmission channel is constructed. Experiments show that the encryption strength of this method reaches 256-512 bits, the anti-attack capability is 1 500-3 000 times per second, and the packet loss rate is always lower than 10%. In typical scenarios such as nearshore and far-sea formation and ship-aircraft interconnection, the data transmission rate reaches 35.78-50.25 Mbps, and the end-to-end delay is 85.3-120.5 ms.The jitter is 3.8-5.2 ms, effectively achieving a high-security and low-latency heterogeneous communication system for ships,providing reliable communication support for complex Marine missions.更多还原