GB/T 31308.3-2023行政、商业和行业中的数据元、过程和文档长效签名第3部分:PDF高级电子签名(PAdES)的长效签名规范国家标准
英文:Processes, data elements and documents in commerce, industry and administration—Long term signature—Part 3: Long term...
英文:Processes, data elements and documents in commerce, industry and administration—Long term signature—Part 3: Long term...