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Subject Syllabus

CY503 (C) - Data Security

CSCY · Semester 5

Course Modules

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History of Cryptography Mathematical background: Probability theory Information theory Complexity theory Number theory Symmetric (Private) Key Cryptographic Systems: Caesar Affine Monoalphabetic Substitution Transposition Homophonic substitution Vignere Beauford and DES Family Product ciphers Lucifer and DES

Concept of PKCS RSA Cryptosystem Variants of RSA Primality testing Security of RSA Merkle – Hellamn Security of Merkle – Hellaman ElGamal Elliptical Curve Cryptography

The one time pad Synchronous stream ciphers Self-synchronizing stream ciphers Feedback shift registers Linear Complexity Non-linear feedback shift registers Stream ciphers based LFSRs Non-linear Combination generators Non linear filter generators Clock controlled generators The alternating step generators The shrinking generators

Properties Generic signature schemes Rabin Lamport Matyasmeyer RSA Multiple RSA and ElGamal Signatures Digital signature standard Blind Signatures RSA Blind

Threshold secret sharing Shamir scheme Blakley scheme and modular Scheme Pseudo random number generators: Definition of randomness and pseudo randomness Statistical tests of randomness Linear congruential generator Modern PRNGs (a brief description)