Using Grid Storage, users can remotely store their data and enjoy the on-demand high quality applications and services from a shared network of configurable computing resources, without the burden of local data storage and maintenance. Grid computing offers dynamically scalable resources provisioned as a service over the Internet. The third-party, on-demand, self-service, pay-per-use, and seamlessly scalable computing resources and services offered by the Grid paradigm promise to reduce capital

more »

... as well as operational expenditures for hardware and software. This thesis provides a survey on the achievable security merits by making use of multiple distinct Grids simultaneously. Various distinct architectures are introduced and discussed according to their security and privacy capabilities and prospects. It provides four distinct models in form of abstracted multi-Grid architectures. These developed multi-Grid architectures allow to categorize the available schemes and to analyze them according to their security benefits. An assessment of the different methods replication of applications, partition of application System into tiers, partition of application logic into fragments and partition of application data into fragments is given in particular. In addition, enabling public audit ability for Grid storage is of critical importance so that users can resort to an Integrity third party auditor to check the integrity of outsourced data and be worry-free. This thesis proposes a secure Grid storage system supporting privacy-preserving public auditing. It further extends the result to enable the ITPA to perform audits for multiple users simultaneously and efficiently.