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

Algorithm 1

uploadURole.

(1)	Input: uID, uRole, sig
(2)	output: bool
(3)	% invoke by DMSs to upload the users’ role in the DO.
(4)	%
(5)	if verify(DMS_ID, sig) = true && uID.DO = = DMS_ID.DO then
(6)	{
(7)	if stub.GetState(uID) ! = null then % update the user’s role
(8)	updateAHL(uID_update,uID);
(9)	stub.PutState(uID,uRole); % store key = uPK, value = rRole in blockchain
(10)	return 0;
(11)	}
(12)	else
(13)	return 1;