Based on the application of cloud computing, digital library is a cloud with a powerful computing capability, which is integrated from many relatively low cost computing entities through network. This cloud can be applied to store all types of document resources and conduct computing application, so as to unify the management by the means of resources sharing. The users can use a variety of terminal equipment to access it without any limitation of time and place, and it can carry on the service charge process based on the use of resources. The framework of digital library based on cloud platform can be divided into 3 layers: core service, service management as well as user access interface. Digital library based on the cloud computing platform is confronted with some security problems, such as data security, user privacy leaks, virtualization security etc. The paper discusses the corresponding strategies from the perspectives of WEB browser security, data encryption, identity authentication and authorization decision, virtual security technology, and establishment of cloud computing security standards and evaluation system.
Flexible Grid service management through resource partitioning