标准摘要
[中文适用范围]： 本文件中包含的算法推荐用于对空间任务有信息安全要求（如数据、语音和视频）保密性、认证或经过身份验证的保密性的空间任务。这些算法可以应用于任何或所有任务通信链路，例如前向空间链路（例如遥指令），返回空间链路（例如遥测、科学数据），以及地面数据网络上。它们也可以用于确保存储数据的机密性和认证性。 对称算法假设所有通信实体都具有共享秘密（即'密钥'），这使它们能够加密、解密和验证彼此共享的信息。共享秘密的分发和管理方式（密钥管理）不在本文件范围内。有关密钥管理的更多信息，请参见空间任务密钥管理概念（参考文献 [B22]）。 [外文原描述]： The algorithms contained in ISO 20215:2015 are recommended for use on space missions with a requirement for information (e.g., data, voice, and video) confidentiality, authentication, or authenticated confidentiality. The algorithms may be employed on any or all mission communications links such as the forward space link (e.g., telecommand), the return space link (e.g., telemetry, science data), as well as across the ground data network. They could as well be used to ensure confidentiality and authenticity of stored data. A symmetric algorithm assumes that all communicating entities possess a shared secret (i.e., a ?key') which enables them to encrypt, decrypt, and authenticate information shared among them. The manner in which the shared secret is distributed and managed (key management) is not within the scope of this document. Further information on key management can be found in Space Missions Key Management Concept (reference [B22]).
英文名称Space data and information transfer systems — CCSDS cryptographic algorithms