Abstract: Satellite Internet is a new key infrastructure, and cryptography technology is the cornerstone to ensure the reliable operation of satellite Internet. The security risks of satellite Internet are introduced in this paper, and gives typical application scenarios of commercial cryptography for satellite Internet, including autonomous driving, aviation interconnection, financial industry and emergency communications. Finally, The paper puts forward some reasonable suggestions on commercial cryptography of satellite Internet in eight aspects: establishment of standards for commercial cryptography, research on the integration of commercial cryptography and crossing technologies in satellite internet, research on network security of commercial cryptography, research on commercial cryptography based on software radio technology, construction of verification environment for commercial cryptography products of satellite internet, supervision of internet security in offshore satellite.

Key words: cryptography, cryptography technology, satellite Internet, application scenarios

摘要： 卫星互联网属于新型关键基础设施，密码技术是保障卫星互联网可靠运行的基石。本文介绍了卫星互联网面临的安全风险，并给出了卫星互联网商用密码典型应用场景包括自动驾驶、航空互联、金融行业以及应急通信。最后就卫星互联网商密行业标准制定、商用密码系统规建和运营、交叉技术研究、网络侧商密技术研究、终端侧商密技术研究、软件无线电商密应用技术研究、卫星互联网商密产品验证环境构建以及境外卫星互联网安全监管八个方面对卫星互联网商用密码发展提出了合理化建议。

关键词: 密码, 密码技术, 卫星互联网, 应用场景