8 CS 1-INFORMATION SYSTEM AND SECURITIES |
Units: I |
Introduction to security attacks, services and mechanism, introduction to cryptography. Conventional Encryption:
Conventional encryption model, classical encryption techniques- substitution ciphers and transposition ciphers, cryptanalysis,
stereography, stream and block ciphers. Modern Block Ciphers: Block ciphers principals, Shannon’s theory of confusion and
diffusion, fiestal structure, data encryption standard(DES), strength of DES, differential and linear crypt analysis of DES,
block cipher modes of operations, triple DES, IDEA encryption and decryption, strength of IDEA, confidentiality using
conventional encryption, traffic confidentiality, key distribution, random number generation.
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Units: II |
Introduction to graph, ring and field, prime and relative prime numbers, modular arithmetic, Fermat’s and Euler’s
theorem, primality testing, Euclid’s Algorithm, Chinese Remainder theorem, discrete logarithms.
Principals of public key crypto systems, RSA algorithm, security of RSA, key management, Diffle-Hellman key exchange
algorithm, introductory idea of Elliptic curve cryptography, Elganel encryption. |
Units: III |
Message Authentication and Hash Function: Authentication requirements, authentication functions, message
authentication code, hash functions, birthday attacks, security of hash functions and MACS, MD5 message digest algorithm,
Secure hash algorithm(SHA). Digital Signatures: Digital Signatures, authentication protocols, digital signature standards
(DSS), proof of digital signature algorithm.
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Units: IV |
Authentication Applications: Kerberos and X.509, directory authentication service, electronic mail security-pretty good
privacy (PGP), S/MIME.
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Units: V |
IP Security: Architecture, Authentication header, Encapsulating security payloads, combining security associations,
key management. Web Security: Secure socket layer and transport layer security, secure electronic transaction (SET). System
Security: Intruders, Viruses and related threads, firewall design principals, trusted systems.
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