Unit 1 Symmetric Cipher Model, Cryptography, Cryptanalysis and

• Substitution and Transposition techniques 3 5

Unit 2 Stream ciphers and block ciphers, Block Cipher structure, Data

10 lecture hours

• Encryption standard (DES) with example
• strength of DES, Design principles of block cipher
• AES with structure
• its transformation functions
• key expansion
• example and implementation

Unit 3 Multiple encryption and triple DES, Electronic Code Book,

3 lecture hours

• Cipher Block Chaining Mode
• Cipher Feedback mode
• Output Feedback mode
• Counter mode

Unit 4 Public Key Cryptosystems with Applications, Requirements and

7 lecture hours

• RSA algorithm
• its computational aspects and security
• Diffie-Hillman Key Exchange algorithm
• Man-in- Middle attack

Unit 5 Cryptographic Hash Functions, their applications, Simple hash

4 lecture hours

• its requirements and security
• Hash functions based on Cipher Block Chaining
• Secure Hash Algorithm (SHA)

Unit 6 Message Authentication Codes, its requirements and security,

• MACs based on Hash Functions
• Macs based on Block Ciphers 3 7

Unit 7 Digital Signature, its properties, requirements and security,

3 lecture hours

• various digital signature schemes (Elgamal and Schnorr)
• NIST digital Signature algorithm

Unit 8 Key management and distribution, symmetric key distribution

4 lecture hours

• using symmetric and asymmetric encryptions
• distribution of public keys
• Public key infrastructure

Unit 10 Software Flaws and Malware

7 lecture hours

• Software Flaws
• Buffer overflow
• Incomplete Mediation
• Race Conditions Malware
• Morris Worm
• Code red, SQL Slammer
• Trojan Example
• Malware Detection
• The Future of Malware
• Cyber Disease versus Biological diseases
• Miscellaneous software-based Attacks
• Salami Attacks
• Time bombs
• Trusting Software Insecurity in software: Software Reverse Engineering
• Anti-disassembly Techniques
• Anti-Debugging Techniques Software Tamper Resistance: Guards
• Metamorphism Revisited