Department of Computer Science & Engineering

Syllabus

• Number Theory Basics: Modular arithmetic, primes, GCD and Chinese reminder theorems.
• Block Ciphers: DES, AES; ECB, CBC, OFB,CFB, CTR and GCM modes, Double and triple encryptions.
• Stream Ciphers: Encryption and decryption with Stream ciphers, Shift-register based stream ciphers, Currently used Stream Ciphers.
• Public Key Cryptography: RSA, ElGamal, Diffe-Hellman Key exchange, practical digital signatures. ECC
• Hash Functions: oneway, collision resistant, preimage resistant HASH functions, Real-world examples.
• Message Authentication Codes: MAC from Hash functions, MAC from block ciphers.
• Side Channel Analysis: Power / timing analysis of crypto-implementations
• Applications : Key Establishment Protocols, Blockchains, etc.