To enable resource security, do the following:
               	 
            
 
            	 
             
               		
               - Specify that a transaction is to perform resource security checking, by checking 
                  		  Security: Resource Level Checking on the PCT page in ESMAC for the transaction. (By default, transactions do not perform resource security checking.)
                  		
               
- Specify a set of resource keys in the resource table entry (for example, the FCT entry for a file). Each resource key is a
                  number in the range 1 through 24.
                  		
               
- Specify a set of resource keys in a user's SNT entry. A user can access a resource if one or more of the resource keys for
                  the resource matches a resource key specified in that user's SNT entry.
                  		
               
The figure below illustrates the process of resource key checking.
               	 
            
 
            	 
             
               		
               Figure 1. Resource key checking 
                  		   
                  		  