Novel Method for Safeguarding Personal Health Record in Cloud Connection Using Deep Learning Models

Algorithm 2

Pseudocode of attribute-based multisignature scheme.

(1)	Estimate e = HASH (m), where HASH is a cryptographic hash function like SHA-1
(2)	Let Z be the Ln leftmost bits of e, where Ln is the bit length of the group order n
(3)	Choose a random integer k from [1, n − 1]
(4)	Compute the curve point (x1, y1) =
(5)	Compute r = x1 (mod n). If r = 0, go back to step 3
(6)	Compute s = k − 1 (Z + rdA) (mod n). If s = 0, go back to step 3
(7)	The signature is the pair (r, s)