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

Algorithm 5

Location information extraction.

	Input:
	Location hash value ; Rectangular border ,
	Output:
	Location information
(1)	fordo
(2)	fordo
(3)
(4)	if then
(5)	;
(6)	end if
(7)	end for
(8)	end for