Enhanced Biometric Recognition for Secure Authentication Using Iris Preprocessing and Hyperelliptic Curve Cryptography

Algorithm 5: Divisor Addition based on Cantor Algorithm (DACA).

 Input: Divisors d1=[a1,b1], d2=[a2,b2]

 Output: d=d1+d2

 Process:

 Calculate

  S1=gcd(a1,a2)

  S1=e1a1+e2a2

 Compute.

  D=gcd(S1,b1+b2+h)

  D=C1S1+C2(b1+b2+h)

 Calculate t1=C1e1, t2=C1e2, t3=C2

 Compute

 Compute

 Repeat

 Calculate,

 Until deg(u)<=g

 Form u as a monic

 Return cipher divisor as d’[u,v]

Algorithm 5: Divisor Addition based on Cantor Algorithm (DACA).