Important 16 Marks Questions In IT2352 & Cryptography & network Security

Important 16 Marks Questions In IT2352 & Cryptography & network Security

1. Explain in detail about  any four substitution techniques                                         
2. Explain in detail about OSI Security Architecture?                                                  
3. Explain playfair cipher & vernam cipher in detail ?                                                   
4. Explain briefly about data encryption standard & types of attacks on double &TripleDES                                                                                                                                  
5. Discuss in detail RSA algorithm , highlighting its computational aspect and security.
    Perform decryption and encryption using RSA algorithm with p=3 q=11 e=7 and M=5.
6. How discrete logarithm is evaluated for a number? What is the role of discrete logarithms in  the Diffie-Hellman key exchange in exchanging the secret key among two users?            
7. Describe the MD5 message digest algorithm with necessary block diagram                     
8. Explain the operational description of S/MIME                                                                 
9. Explain in detail operation of Transport layer security in detail                                      
10. Explain in detail about IP Security with neat diagram                                                    
11. Explain in detail about Malicious Software                                                                      
12. Write short notes on Intrusion detection                                                                        
13. Explain in detail about Password Management