Linkable Ring Signature Scheme Using Biometric Cryptosystem and NIZK and Its Application

Algorithm 1

DisThreshold (, , ).

	Input: .
	Output:
(1)	, .
(2)	for do
(3)	for do
(4)	Choose ;
(5)	end
(6)	end
(7)	for do
(8)	for do
(9)	Choose ;
(10)	end
(11)
(12)	end
(13)	return .