本标准规定了为存储介质中包含的数据提供加密和身份验证的加密单元的要求。完全交换需要超出本标准范围的其他格式规范（如压缩算法和物理数据格式）。

This standard specifies requirements for cryptographic units that provide encryption and authentication for data contained within storage media. Full interchange requires additional format specifications (such as compression algorithms and physical data format) that are beyond the scope of this standard.