信息技术 - 安全技术 - 密钥管理 - 第4部分:基于弱秘密的机制

[中文适用范围]： 本文件定义了基于弱秘密的关键建立机制。弱秘密是指可以轻松由人类记忆的秘密，因此将从相对较小的可能性集中选择秘密。它规定了专门设计的加密技术，用于基于从密码中导出的弱秘密建立一个或多个秘密密钥，同时防止与弱秘密相关的离线暴力攻击。本文件不适用于以下关键管理方面：- 弱秘密、强秘密和建立的秘密密钥的生命期管理；- 存储、存档、删除、销毁等机制来存储、存档、删除、销毁弱秘密、强秘密和建立的秘密密钥。 [外文原描述]： ISO/IEC 11770-4:2017 defines key establishment mechanisms based on weak secrets, i.e. secrets that can be readily memorized by a human, and hence, secrets that will be chosen from a relatively small set of possibilities. It specifies cryptographic techniques specifically designed to establish one or more secret keys based on a weak secret derived from a memorized password, while preventing offline brute-force attacks associated with the weak secret. ISO/IEC 11770-4:2017 is not applicable to the following aspects of key management: - life-cycle management of weak secrets, strong secrets, and established secret keys; - mechanisms to store, archive, delete, destroy, etc. weak secrets, strong secrets, and established secret keys.