The answer is not very professional and is for reference only. Cloud computing, digital library and information security are quite related, so your problem itself is problematic. As a platform technology, cloud computing can be applied to digital libraries, and both cloud computing and digital libraries involve information security issues.

The technical content of digital library is not necessarily as high as that of cloud computing, and the development of China is not bad, mainly about copyright and benefit sharing.

Technically speaking, some developed countries abroad started earlier than China in cloud computing and information security, so they are definitely ahead of China in key technologies. But because cloud computing is a new concept, the steps in different countries are still similar. At the beginning, it was all exploration and expansion in the application field.