Zendehboudi, Maryam, et al. “Offering a Method for Ensuring Data Storage Security in the Cloud Network by Using Kerberos Algorithm”. International Academic Journal of Science and Engineering, vol. 1, no. 2, Dec. 2014, pp. 75-81, https://iaiest.com/iaj/index.php/IAJSE/article/view/IAJSE1410025.