A grid connects loosely connected resources in separate administrative domains and organizations. As the whole concept of a computational grid is still evolving, quite a few competing and complementary solutions exist. Some of them add security at the cost of performance or usability.

This paper conducts a thorough review of the current literature on security in grid computing. It first gives a classification of the security issues concerned, followed by a classification of the possible solutions. It then goes through the key solutions identified and provides a condensed description--similar to a related work section. The bulk of this paper and its key contribution is the survey of related work.

I recommend this literature survey paper to anyone who needs an overview of the current research in this field.