Chapter 1: Introduction to Cryptography and Network Security
Chapter 2: Basic Concepts in Data Encryption
Chapter 3: Model Block Cipher
Chapter 4: Groups, Ring and Field
Chapter 5: Public Key Cryptosystem and RSA
Chapter 6: Authentication
Chapter 7: Digital Signatures
Chapter 8: Authentication Application
Chapter 9: IP Security
Chapter 10: Web Security
Chapter 11: System Security

This book has been written keeping in mind syllabi of all Indian universities and optimized the contents of the book accordingly. These students are the book’s primary audience. Cryptographic concepts are explained using diagrams to illustrate component relationships and data flows. At every step aim is to examine the relationship between the security measures and the vulnerabilities they address. This will guide readers in safely applying cryptographic techniques. This book is also intended for people who know very little about cryptography but need to make technical decisions about cryptographic security. many people face this situation when they need to transmit business data safely over the Internet. This often includes people responsible for the data, like business analysts and managers. as well as those who must install and maintain the protections, like information systems administrators and managers.