IT 2352 CRYPTOGRAPHY AND NETWORK SECURITY

IT 2352 CRYPTOGRAPHY AND NETWORK SECURITY IT2352 CRYPTOGRAPHY AND NETWORK SECURITY

IT2352 CRYPTOGRAPHY AND NETWORK SECURITY L T P C

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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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