Thursday, December 16, 2010

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.

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