Class 4: Essential Math for Modern Cryptography 🧮 by Prof. Avishek Adhikari

In this class I talked about the Basic Mathematics, mostly the part of Abstract Algebra that will be required for our course on Cryptography. I started with the intuitive idea of basic motivations for group theory through examples, such as (Z,+). Then I talked about the cyclic group (Z_n,+), one of the most important groups that will be used in studying Public Key Cryptography. I also talked about the group of Units, i.e, U_n. Mostly I follow my book: Adhikari M R and Adhikari A: Basic Modern Algebra with Applications, Springer, 2014 Viewers are also requested to watch my following videos on Basic Group Theory to know more about basic group theory. https://www.youtube.com/playlist?list=PLxPYbPBbtwgIhqjWVcXuGYK8zoJk4LQAa