Research And Application Of Workflow Access Control Technology Faced The Rapid Extended Manufacturing System

The rapid extended manufacturing mode of weapon equipment is put forward as a kind ofnetwork manufacturing mode that is used to be adapted for the military system closely coupledproduction demands, this is an advanced production mode which can make the union of the army andthe people for the weapon equipment manufacturing realized. Access control, a key measure in theworkflow security technologies, plays a particularly important role in the authority control of the rapidextended manufacturing system of weapon equipment.Because the existing several mainstream workflow access control models exist some problems,which make them not be applied to the authorization control of the rapid extended manufacturingsystem of weapon equipment. Therefore, it’s essentially important to establish a reasonable, safe andreliable access control mechanism for the rapid extended manufacturing system of weapon equipment,it can not only ensure the system flexibly operating, but also improve the security of the entire system.Combining advantages of various access control modes and the characteristics of the rapidextended manufacturing system of weapon equipment, this paper has designed a new workflow accesscontrol model which is faced to the rapid extended manufacturing system, we call it REM_TRBACmodel. This model has inherited various advantages of the T-RBAC model and other access controlmodels. Based on this, this model has especially added many new functions and features, such as, ithas assigned many kinds of dynamic constraint rules to users, roles, tasks, permissions, sessions, so asto meet the authority control needs of the system. In order to further improve the efficiency ofauthorization control, it has improved the principle of the existing separation of duty, and designed animproved algorithm of the separation of duty; in order to select the most appropriate task executive,this paper has designed a task assignment algorithm based on authorization constraints. In addition,combining the PKI/PMI security support platform, this paper has designed an access control systemwhich is based on the REM_TRBAC model, thus largely improve the access security of the system.Finally, combining the theoretical study and practical demand analysis, this paper has made thebasic theory of the REM_TRBAC model applied preliminarily to the authorization control sub systemof the rapid extended manufacturing system of weapon equipment, and also has given some practicaloperation effect, which has verified the feasibility of REM_TRBAC model.