Sunil Kumar Kashyap , Birendra Kumar Sharma , Amitabh Banerjee , On Mega Series of Two Distinct Types of Discrete Logarithms in Free Groups and Public Key Cryptosystem, Asian Journal of Information Technology, Volume 6,Issue 10, 2007, Pages 1041-1045, ISSN 1682-3915, ajit.2007.1041.1045, (https://makhillpublications.co/view-article.php?doi=ajit.2007.1041.1045) Abstract: In this study, we define the mega series of 2 distinct types of discrete logarithms in the free groups and design a public key cryptosystem, whose security is based on the difficulty of solving not only the 1 or 2 or 3 or …any number of discrete logarithms, but the mega series of 2 distinct types of discrete logarithms in the free groups. Thus the proposed public key cryptosystem becomes mega secured. Mathematics Subject Classification Number: 94A60. Keywords: Discrete logarithms;free groups;public key;cryptosystem