Andrew Martin, Andy Cooper, University of Oxford, funded by GridNet2.
Trusted Computing Research Group (TC-RG)
At GFF-15, an outline for a use case document was presented and discussed. A little further discussion had occurred since, on the mailing list, and Andy Cooper, who had been named on the original GridNet2 funding proposal, contributed substantially to the document in the last months of
2005. The resulting document – the first full draft of the use case document – was uploaded to
GridForge before Christmas.
As a result, Andrew Martin and Andy Cooper attended GGF-16 to present and discuss this document. As usual, the TC-RG meeting also included a report and subsequent discussion from
Wenbo Mao on the progress of his Daonity architecture and implementation. A full architecture draft document was complete in time for GGF-16 and was uploaded to GridForge. The progress of the group was, therefore, tangible with two public draft documents.
The draft use case document was met with enthusiasm by the relatively small TC-RG meeting. The progress was acknowledged, and the lack of further input regretted. The area directors encouraged us to progress the document through the GGF process so that it may both perhaps receive further input and comment, and also so that it may reach a wider audience. This will happen as soon as possible.
Ad Hoc BoF on Virtualization
It has become clear that Trusted Computing alone is too low-level a technology to address many application issues by itself. Techniques for system virtualization (such as Xen, VMWare,
VirtualPC, etc.) provide a natural partnering for enhanced trust in applications and middleware infrastructure. The same techniques are also gaining popularity for Grid job management, partitioning of tasks on 'CampusGrid' nodes, and so on. Though it would be premature to consider standardization in this area, it is clearly important that those pursuing different aims through this technology should be aware of each other. As a result, Andrew Martin organized a BoF on this subject.
The BoF attracted a good level of attendance, including quite a number of area directors. Speakers included:
 Andy Cooper. "Virtualisation and the Grid"
 Wenbo Mao. "Secure Virtualisation with Trusted Computing"


David Wallom. "Virtualisation in Campus Grids"
Comment by Rhys Francis, who described the Australian Grid virtualised gateway using
Xen to run different middleware stacks to support a wide range of users.
 Reference was also made to virtualisation extensions to Globus Toolkit 4, which Ian Foster
 had described in his keynote address.
Comment by Matt Viljoen, who described a Rutherford Lab process for distributing client
Grid tools using a VM player.
There was a good level of discussion, concluding that two threads of activity should be taken forward: a consideration (eventually towards standardization) of how virtualization technologies can be integrated with grid middlware to achieve the desirable outcomes, and also a community

means of keeping in contact those using these technologies in production grids. These will lead to further BoFs at future GGFs, in the first instance.
Shibboleth and Grid
An extended community activity reviewed existing an possible projects integrating Shibboleth and
Grid technologies. Andrew Martin attended and presented on the ShibGrid project.
Andrew Martin and Andy Cooper attended other relevant sessions at the GGF-15 meeting, including acting as note-taker at the AuthZ-interop meeting.