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GB/T 40949-2021 数字版权保护可信计数技术规范 Digital rights management—Specification for trusted coun...2023-07-05

GB/T 40949-2021数字版权保护可信计数技术规范Digital rights management. Specification for trusted counting te...2022-03-14

GB/T 40953-2021数字版权保护版权资源加密与封装Digital rights management. Encryption and encapsulation of cop...2022-03-14

GB/T 40985-2021数字版权保护版权资源标识与描述Digital rights management. Identification and description of c...2022-03-14

数字水印技术2020-10-30

数字水印技术的研究2020-10-30

工艺版权保护之道2020-10-22