Cryptography Exam Questions PDF

Q1. Explain even & odd parity with using example.(4M) Q2. Formulate measure of information. Calculate the amt of info. Q3. Differentiate between entropy & conditional entropy. Q4. Explain 3 properties of entropy. Q5. Drawback of fixed dictionary coding. Q6. List 2 types of source & channel coding. Q...

Q1. Explain even & odd parity with using example.(4M) Q2. Formulate measure of information. Calculate the amt of info. Q3. Differentiate between entropy & conditional entropy. Q4. Explain 3 properties of entropy. Q5. Drawback of fixed dictionary coding. Q6. List 2 types of source & channel coding. Q7. Discuss the properties of linear block code. Q8. List limitations of sysmmetric cipher. Q9. Draw diagram for straight P, S box. Q10. '' for DES (Data Encryption Standard). Q11. Defien crypt analysis. Q12. Discuss Mono-alphabetic cipher. Q13. Types of asymmetric & symmetric encryption techniques. Q14. Common types Cryptographic Attacks. Q15. Diagram for Compression in S Box. Q16. Explain variable length coding. Q17. Explain techniques of Ceaser Cipher. Q18. Compare Block & Stream Cipher. Q19. Discuss techniques of Mono-alphabetic Ceaser Cipher. Q20. Discuss importance of authenticity & non-reputation in secure communication. Q21. '' '' of poly-alphabetic. Q22. Compare linear & non-linear S Boxes. Q23. Solce the parity bits p for k = 10 & t = 1. Q24. Apply LZW dictionary coding approach for message "***". Q25. Identify Advantages & disadvantages of Adaptive Huffman coding. Q26. Apply Adaptive Huffman Decoding on mssge "**". Q27. Apply LZ77 dictionary approach with window size m & look ahead buffer size l for the mssge "**". Q28. Compare Adaptive & Traditional Huffman Coding. Q29. A descrere source emits 1 of 6 symbols in m sec, the symbol probablities are {1/2, 1/4, 1/8, 1/16, 1/32, 1/32}. Calculate the source entropy & information rate. Q30. Steps for building Tree Updaption in Adaptive Huffman Coding. Do for the code word "***". Q31. Construct the key generation encryption/decryption steps involved in RSA. Q32. Discuss basic steps of DES Algorithm with neat diagra and why it was replaced by AES. Q33. Apply process of creating & verifying digital signature usung public key cryptography. Q34. Discuss techniques of Transposition Cipher with example. Q35. Explain key ditribution in symmetric encipherment. Q36. Discuss digital signature ensure both the authentication & entigrity of a message. Q37. Explain how a Block Cipher works & why padding is required for these algorithms. Q38. Explain RSA Algorithm. Q39. Dicuss about improvements of SHA-1 over MD-5. Q40. Outline the process of key agreement in RSA algorithm. Q41. Explain initial permutation, final permutation and fistel permutation. Q42. Explain DES algorithm with diagram.