Omar, M. I., W. Kipruto, D. C. and W. Kimwele, D. M. (2017) “Securing the IP Multimedia Subsystem with IPsec and HTTP Digest”, International Journal of Computer (IJC), 26(1), pp. 117–128. Available at: https://ijcjournal.org/index.php/InternationalJournalOfComputer/article/view/1025 (Accessed: 2 May 2024).