数字电影院(D-cinema)组件.第6部分:基本加密的MXF磁道文件

[中文适用范围]： 该标准定义了加密 D-Cinema 非交错 MXF 帧封装轨道文件的语法，并指定了匹配的参考解密模型。 它使用 AES 密码算法进行本质加密，并且可以选择使用 HMAC-SHA1 算法来实现本质完整性。 D-Cinema 轨道文件格式旨在承载 D-Cinema 精华以分发到展览场地，并在声音和图像轨道文件规范中指定。 该标准假设解密和验证加密跟踪文件完整性所需的密钥将根据需要提供。 更准确地说，如果没有指定在 D-Cinema 发行和放映环境中管理加密密钥和使用权限的方式。 此外，本文档不涉及但不排除使用水印、指纹或其他安全技术提供额外的保护 范围仅限于 D-Cinema，并且未定义通用 MXF 加密框架。 [外文原描述]： ISO 26429-6:2008 defines the syntax of encrypted digital cinema non-interleaved material exchange format (MXF) frame-wrapped track files and specifies a matching reference decryption model. It uses the advanced encryption standard (AES) cipher algorithm for essence encryption and, optionally, the HMAC-SHA1 algorithm for essence integrity. The digital cinema track file format is designed to carry digital cinema essence for distribution to exhibition sites and is specified in the sound and picture track file specification. ISO 26429-6:2008 assumes that the cryptographic keys necessary to decrypt and verify the integrity of encrypted track files will be available upon demand. More precisely, it does not specify the fashion with which cryptographic keys and usage rights are managed across digital cinema distribution and exhibition environments. In addition, ISO 26429-6:2008 does not address, but does not preclude, the use of watermarking, fingerprinting or other security techniques to provide additional protection. The scope is limited to digital cinema and does not define a generic MXF encryption framework.