Trusted and Efficient Cross-Domain Access Control System Based on Blockchain

Algorithm 12

updateAHL.

(1)	Input: string, string % userRole_update, policy_update %uID, devID
(2)	output: bool
(3)	ahList = getAHL();
(4)	Case “userRole_update”;
(5)	for list in ahList
(6)	if list.uID = = uID then
(7)	ahList.DeleteRow (list);
(8)	return 0;
(9)	Case “policy_update”;
(10)	for list in ahList
(11)	if list.devID = = devID then
(12)	ahList.DeleteRow (list);
(13)	return 0;