CRYPTOGRAPHY AND NETWORK SECURITY OPERATION

The aim of this book is to understand Introduction to the Concepts of Security: The need for security Security Approaches Principles of Security Types of Attacks. Cryptographic Techniques: Plain Text and Cipher Text Substitution Techniques Transposition Techniques Encryption and Decryption Symmetric and Asymmetric Key Cryptography Steganography Key Range and Key Size Possible Types of Attacks. Computer-based Symmetric Key Cryptographic Algorithms: Algorithm Types and Modes An overview of Symmetric Key Cryptography DES International Data Encryption Algorithm (IDEA)  RC5 Blowfish AES Differential and Linear Cryptanalysis.