Unit	Topic Title	Detailed Topics	Hrs/Unit
1	Attacks on Computers & Computer Security	• Introduction • Need for Security • Security approaches • Principles of Security • Types of attack	5
2	Cryptography: Concepts & Techniques	• Introduction • Plaintext & Cipher text • Substitution Techniques • Transposition Techniques • Encryption & Decryption • Symmetric & Asymmetric key Cryptography • Key Range & Key Size	7
3	Symmetric Key Algorithm	• Introduction • Algorithm types & Modes • Overview of Symmetric Key Cryptography • DES (Data Encryption Standard) algorithm • IDEA (International Data Encryption Algorithm) algorithm • RC5 (Rivest Cipher 5) algorithm	8
4	Asymmetric Key Algorithm, Digital Signature and RSA	• Introduction • Overview of Asymmetric key Cryptography • RSA algorithm • Symmetric & Asymmetric key Cryptography together • Digital Signature • Basic concepts of Message Digest and Hash Function (Algorithms on Message Digest and Hash function not required)	5
5	Internet Security Protocols, User Authentication	• Basic Concepts • SSL protocol • Authentication Basics • Password • Authentication Token • Certificate based Authentication • Biometric Authentication	6
6	Electronic Mail Security	• Basics of mail security • Pretty Good Privacy • S/MIME	4
7	Firewall	• Introduction • Types of firewall • Firewall Configurations • DMZ Network	3