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

Algorithm 6

Registration record generation.

	Input:
	Region LDO’s secret keys and ; LDO′ signing key
	Output:
	Registration record
(1)	for
(2)
(3)
(4)
(5)
(6)
(7)
(8)	end for
(9)
(10)
(11)
(12)	return.