[PDF] CS8792 Cryptography and Network Security (CNS) 2017 Regulation Syllabus, Notes, Question Banks/Important Questions and Multiple Choice Questions for Anna University Students

Security trends - Legal, Ethical and Professional Aspects of Security, Need for Security atMultiple levels, Security Policies - Model of network security – Security attacks, services andmechanisms – OSI security architecture – Classical encryption techniques: substitutiontechniques, transposition techniques, steganography- Foundations of modern cryptography:perfect security – information theory – product cryptosystem – cryptanalysis.

MATHEMATICS OF SYMMETRIC KEY CRYPTOGRAPHY: Algebraic structures - Modulararithmetic-Euclid‟s algorithm- Congruence and matrices - Groups, Rings, Fields- Finitefields- SYMMETRIC KEY CIPHERS: SDES – Block cipher Principles of DES – Strength ofDES – Differential and linear cryptanalysis - Block cipher design principles – Block ciphermode of operation – Evaluation criteria for AES – Advanced Encryption Standard - RC4 – Key distribution.

MATHEMATICS OF ASYMMETRIC KEY CRYPTOGRAPHY: Primes – Primality Testing –Factorization – Euler’s totient function, Fermat’s and Euler’s Theorem - Chinese RemainderTheorem – Exponentiation and logarithm - ASYMMETRIC KEY CIPHERS: RSAcryptosystem – Key distribution – Key management – Diffie Hellman key exchange -ElGamal cryptosystem – Elliptic curve arithmetic-Elliptic curve cryptography.

Authentication requirement – Authentication function – MAC – Hash function – Security ofhash function and MAC – SHA –Digital signature and authentication protocols – DSS- EntityAuthentication: Biometrics, Passwords, Challenge Response protocols- Authenticationapplications - Kerberos, X.509

Electronic Mail security – PGP, S/MIME – IP security – Web Security - SYSTEMSECURITY: Intruders – Malicious software – viruses – Firewalls.