CRYPTOGRAPHY AND NETWORK SECURITY (SEMESTER VI)

ANNA UNIVERSITY :: CHENNAI 600 025
UNIVERSITY DEPARTMENTS
REGULATIONS – 2008
CURRICULUM FROM III TO VIII SEMESTERS AND ELECTIVES FOR
B.TECH. INFORMATION TECHNOLOGY

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CRYPTOGRAPHY AND NETWORK SECURITY

UNIT I

Security trends – Attacks and services – Classical crypto systems – Different types of ciphers – LFSR sequences – Basic Number theory – Congruences – Chinese Remainder theorem – Modular exponentiation – Fermat and Euler's theorem – Legendre and Jacobi symbols – Finite fields – continued fractions.

UNIT II

Simple DES – Differential cryptoanalysis – DES – Modes of operation – Triple DES – AES – RC4 – RSA – Attacks – Primality test – factoring.

UNIT III

Discrete Logarithms – Computing discrete logs – Diffie-Hellman key exchange – ElGamal Public key cryptosystems – Hash functions – Secure Hash – Birthday attacks - MD5 – Digital signatures – RSA – ElGamal – DSA.

UNIT IV

Authentication applications – Kerberos, X.509, PKI – Electronic Mail security – PGP, S/MIME – IP security – Web Security – SSL, TLS, SET.

UNIT V

System security – Intruders – Malicious software – viruses – Firewalls – Security Standards.