Security Requirements Analysis And Security Protocols Design Of Cooperative Computing For Multi-users In Grid

Due to the complicacy of security problems in Grid more than general securityproblems, a lot of new security problems have appeared in Grid. As a result, thetraditional network security practices can't meet the security demand of Grid. So thestudy of the security problems has become an important, complicated and arduouswork.In this thesis, a new viewpoint of "constructing grid security system" for solvingGrid security problems is put forward, and the essence of information security isanalyzed. Based on our analysis, a security system should be composed of two parts:security rule definition and security rule implementation. The disadvantage of currentGrid security structure is also discussed in this thesis.For the Mode of Multi-users Cooperative Computing (MMCC), we analyzedMMCC's requirements. Based on the formal language for security requirementsanalysis, a new description method for security requirements is proposed, and is usedto describe the security requirements of MMCC.From the analysis of security requirements, we design two new security protocolsto deal with the security requirements for Anonymous Multi-users CooperativeComputing, and the correctness and security of the new protocol are analyzed. Then,the specialty of the grid security protocol is analyzed.