Keerthana N. V., Suresh P. “SICRYPT: Certificateless Signature Cryptosystem Using Enhanced Elliptic Curve Cryptography and Cuckoo Hashing for Mobile Payments ”. International Journal of Advanced Science and Technology, Vol. 29, no. 04, June 2020, pp. 3025 -, http://sersc.org/journals/index.php/IJAST/article/view/24104.