IT2352 CRYPTOGRAPHY AND NETWORK SECURITY

IT2352        CRYPTOGRAPHY AND NETWORK SECURITY           L T P C 
          3 0 0 3

UNIT I                               9
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                               9
Simple DES – Differential cryptoanalysis – DES – Modes of operation – Triple DES –
AES – RC4 – RSA – Attacks – Primality test – factoring.

UNIT III                             9
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                              9
Authentication  applications  –  Kerberos,  X.509, PKI  –  Electronic Mail  security  –  PGP,
S/MIME – IP security – Web Security – SSL, TLS, SET.

UNIT V                              9
System  security  –  Intruders  –  Malicious  software  –  viruses  –  Firewalls  –  Security
Standards.
TOTAL = 60 PERIODS

TEXT BOOKS:
1. Wade Trappe, Lawrence C Washington,  “  Introduction  to Cryptography with  coding
theory”, 2nd
 ed, Pearson, 2007.
2. William Stallings, “Crpyptography and Network security Principles and Practices”,
    Pearson/PHI, 4th
 ed, 2006.

REFERENCES:
1. W. Mao, “Modern Cryptography – Theory and Practice”, Pearson Education, Second
    Edition, 2007.
2. Charles P. Pfleeger, Shari Lawrence Pfleeger – Security in computing Third Edition –
     Prentice Hall of India, 2006.