eecs operating system, from university of michigan shanghai jiao tong university joint institute. very good tutorial for beginners, just take a look and you will earn a lot.
外文文献，伯克利大学云计算文献资料
Data storage in cloud computing leads to several security issues such
as data privacy, integrity, and authentication. Efficiency for the user to upload
and download the data in a secure way plays an important role, as users are
