Cryptography and Network Security
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Cryptography and Network Security Syllabus — Unit-wise Content
The official GTU curriculum for Cryptography and Network Security (subject code 3174202) as prescribed for CS-AI/ML · Semester 7 divides the course into 11 units, covering 61 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3174202)Unit 1 Introduction & Classical Encryption Techniques
- Security trends - Legal
- Ethical and Professional Aspects of Security
- Need for Security at Multiple levels
- Security Policies - Model of network security – Security attacks
- services and mechanisms – OSI security architecture – Symmetric cipher Model
- Classical encryption techniques: substitution techniques
- transposition techniques
- steganography).- Foundations of modern cryptography: perfect security – information theory – product cryptosystem – cryptanalysis
Unit 2 Block Ciphers & Symmetric Key Cryptography
- Stream ciphers and block ciphers
- Block Cipher structure
- Data 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 Block Cipher Operations
- Multiple encryption and triple DES, Electronic Code Book
- Cipher Block Chaining Mode
- Cipher Feedback mode
- Output Feedback Subject Code: mode
- Counter mode
Unit 4 Number Theory & Asymmetric Key Cryptography
- Finite fields – group
- The Euclidean algorithm
- Fermat’s and Euler’s Theorems
- Public Key Cryptosystems with Applications
- Requirements and Cryptanalysis
- RSA algorithm
- its computational aspects and security
- Diffie - Hillman Key Exchange algorithm
- Man- in-Middle attack
Unit 5 Cryptographic Hash Functions
- Application of Cryptographic Hash Functions
- Simple hash functions
- its requirements and security
- Hash functions based on Cipher Block Chaining
- Secure Hash Algorithm (SHA)
Unit 6 Message Authentication Codes
- Requirements and security of Message Authentication Codes
- MACs based on Hash Functions
- MACs based on Block Ciphers
Unit 7 Digital Signatures
- Digital Signature
- its properties
- requirements and security
- various digital signature schemes (Elgamal and Schnorr)
- NIST digital Signature algorithm
Unit 8 Key Management and User Authentication
- Key management and distribution
- symmetric key distribution using symmetric and asymmetric encryptions
- distribution of public keys
- Public key infrastructure
- Remote user authentication with symmetric and asymmetric encryption
Unit 9 Transport Level Security
- Web Security threats and approaches
- SSL architecture and Protocol
- Transport layer security
- HTTPS and SSH
Unit 10 Electronic Mail Security
- Internet Mail Architecture
- Email Formats
- Email threats and comprehensive email security
- Pretty good privacy
Unit 11 IP Security
- IP Security Overview
- IP security policy
- Encapsulating Security Payload
- Combining Security Associations and Key Management
- Intrusion detection system IP Security
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