Cryptography and its Application

Introduction to Cryptography Information Security Fundamentals, Goals of Cryptography, Plaintext, Ciphertext, Keys. Types of Cryptographic Attacks, Cryptanalysis, Classical Encryption Techniques, Introduction to Steganography.

Mathematical Foundation of Cryptography Euclidian, Extended Euclidian Algorithm, Euler’s totient function, Ferment little theorem, Euler’s theorem, Primality Testing, Miller Rabin test, Chinese Remainder theorem, Exponentiation by squaring algorithm, Discrete Logarithm

Symmetric Key Cryptography Block Cipher and Stream Cipher, Product Ciphers, Feistel Structure, Data Encryption Standard, Triple DES, Advanced Encryption Standard, Blowfish, RC4, Modes of Operation

Asymmetric Cryptography Public Key cryptography, Cryptanalysis of RSA Elgamal cryptography, Elliptic Curve cryptography, Key Management and distribution: KDC, Diffie Hellman Key Exchange, User Authentication protocol, Digital Signature, Hash Functions, MD5, SHA-512

Security & Application Security at Application layer, Email Architecture, S/MIME, PGP- Scenarios, key rings, Security at Transport layer, Security at Network layer. Applications of Cryptography in real world.