AD issues x-realm TGTs with kvno 0.  On key x-realm trust key change
    we need to be able to try current and previous keys for trust, else
    we will have some failures.
		
	
		
			
				
	
	
	
		
			5.0 KiB
		
	
	
	
	
	
	
	
			
		
		
	
	
			5.0 KiB