Analysis and Improvement of Blockchain-Based Multilevel Privacy-Preserving Location Sharing Scheme for Telecare Medical Information Systems

Algorithm 2

Generation of location record.

	Input:
	LDO’s j-th location ; LDO’s secret keys ; LDO’s public-key
	Output:
	Location record
	(1) LDO executes:
	(2)
	(3)
	(4) ;
	(5) ;
	(6) ;
	(7) ;
	(8)
	(9)
	(10) return