Research Article

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

Algorithm 5

Verify(, ).
Input: ,
, .
Output: 0 or 1.
(1)Compute .
(2)if then
(3)for do
(4)for do
(5)Compute ;
(6)
(7)end
(8)Compute ;
(9)end
(10)else
(11)0
(12)end
(13)if then 1;
(14)else 0;
(15)return 0 or 1.