Secure Data Sharing With AdHoc

In the scientific circles, there is pressing need to form temporary and dynamic collaborations to share diverse resources (e.g. data, an access to services, applications or various instruments). Theoretically, the traditional grid technologies respond to this need with the abstraction of a Virtual Organization (VO). In practice its procedures are characterized by latency, administrative overhead and are inconvenient to its users. We would like to propose the Manifesto for Secure Sharing. The main postulate is that users should be able to share data and resources by themselves without any intervention on the system administrator's side. In addition, operating an intuitive interface does not require IT skills. AdHoc is a resource sharing interface designed for users willing to share data or computational resources within seconds and almost effortlessly. The AdHoc application is built on the top of traditional security frameworks, such as the PKI X.509 certificate scheme, Globus GSI, gLite VOMS and Shibboleth. It enables users rapid and secure collaboration

A File Transfer Component for Grids

Grids have become a critical asset in large-scale scientific and engineering research. Accessing to distributed data is typically as important as access to distributed computational resources. In this paper, we present the design of Java CoG Kit components and APIs that make handling of data accessed through Grids easier for the novice Grid user and programmer. We introduce the design and architecture of a component for file transfers that separates issues related to requesting, performing and visualizing the actual file transfer. The design of our component is based on object and component based methodologies. Hence, it is assembled from a collection of reusable components promoting customization and reuse. We integrated the drag-anddrop paradigm. Protocol-independent interfaces allow easy adaptation to a variety of data sources. Hence, we not only have developed a GUI but sophisticated middleware to develop advanced Grid file transfer services. These components are distributed with the Java CoG Kit

An Overview of Grid File Transfer Patterns And Their Implementation in the . . .

Accessing files on remote resources is a required function in Grids. In this paper, we report on the file transfer patterns supported in the Java CoG Kit. These patterns are supported by a rich set of accompanying components, including Java classes and methods, command line tools, graphical user interfaces, and portals. The patterns and their implementations are exposed through familiar Java language capabilities of interfaces, hence hiding the underlying protocols. Using these interfaces, one can provide a variety of implementations for diverse file transfer mechanisms and protocols. Together, these tools can be used to implement more sophisticated services. We present a number of prototype applications reusing the Java CoG Kits file transfer patterns. Additionally, we present performance numbers based on a typical client deployment scenario