Research Article

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

Algorithm 3

KeyGen .
Input: , , , , , .
Output: .
(1)Compute , .
(2)Let .
(3)for do
(4)Compute .
(5)if then
(6)Compute
(7)if then
(8)Let
(9)end
(10)end
(11)end
(12)Let .
(13)if then
(14)Call function to obtain
(15)Run to obtain
(16)for do
(17)Compute .
(18)end
(19)end
(20)return , .