Unit 1 Module 1

4 lecture hours

• Introduction to Security: Need for security
• Security approaches
• Principles of security
• Types of attacks
• Substitution & Transposition techniques

Unit 2 Module 2

12 lecture hours

• Symmetric Key Cryptography: Algorithm types & Modes, DES, AES, IDEA
• Differential & Linear Cryptanalysis Public Key Cryptography and Message Authentication: Public-Key Cryptography Principles
• Fermat's and Euler's Theorem, RSA, Digital Signatures
• Key Management with Symmetric & Asymmetric key together User Authentication Mechanism: Authentication basics
• Approaches to Message Authentication, MD5, SHA-1
• Authentication tokens
• Certificate based & Biometric authentication
• SSL/TLS protocols Network attacks: Man-in-the-Middle, DOS, and SQL injection
• IP Spoofing

Unit 3 Module 3

• Introduction to Data Compression: Fundamental concept of data compression & coding
• Compression ratio
• Requirements of data compression
• Modeling and Coding
• Statistical Modeling
• Dictionary Schemes
• Sliding window compression : LZ77
• LZ78, LZW, Difference between Lossless & Lossy Compression 10 20 GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Master of Engineering Level: PG Subject Code: ME02000371 Subject Name : Data Encryption & Compression w.e.f. 2024-25 https://syllabus.gtu.ac.in/ Page 3 of 4

Unit 4 Module 4

10 lecture hours

• Entropy encoding - Repetitive character encoding
• Run length encoding
• Zero/Blank encoding
• Statistical encoding - Huffman
• Arithmetic & Lempel-Ziv coding
• Source encoding - Vector quantization (Simple vector quantization & with error term) Differential encoding—Predictive coding
• Differential pulse code modulation
• Delta modulation
• Adaptive differential pulse code modulation

Unit 5 Module 5

6 lecture hours

• Image Compression :DCT
• JPEG – LS, Differential Lossless Compression
• JPEG – 2000 Standards Video and Audio Compression : Analog Video
• Digital Video
• MPEG – 2, H – 261 Encoder and Decoder
• Digital Audio
• μ-Law and A- Law Commanding
• MPEG – 1 Audio Layer (MP3 Audio Format)

Unit 6 Module 6

3 lecture hours

• Case Study of different cryptographic methods
• Relationship Between Data Encryption and Compression
• Entropy and Information Theory
• Combined encryption and compression for secure data transfer
• Recent trends in encryption and data compression techniques