The inverse transformation matrix times the forward transformation matrix equals the identity matrix.

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The inverse transformation matrix times the forward transformation matrix equals the identity matrix.

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Posted Date:-2022-07-17 22:57:09

More MCQS Questions and answers

  1. DES follows_________.
  2. How many round keys are generated in the AES algorithm?
  3. In AES the 4×4 bytes matrix key is transformed into a keys of size __________.
  4. In an RSA system the public key of a given user is e = 31, n = 3599. What is the privatekey of this user?
  5. In the DES algorithm the Round Input is 32 bits, which is expanded to 48 bits via____________.
  6. In the DES algorithm the round key is __________ bit and the Round Input is ____________bits.
  7. Perform encryption on the following PT using RSA and find the CT. p = 11; q = 13;M = 7.
  8. Perform encryption on the following PT using RSA and find the CT. p = 3; q = 11; M= 5.
  9. The DES Algorithm Cipher System consists of ____________rounds (iterations) each with a round key.
  10. What is the block size in the Simplified AES algorithm?
  11. Which mode requires the implementation of only the encryption algorithm?
  12. Which of the following modes of operation does not involve feedback?
  13. . What is the block size in the Simplified AES algorithm?
  14. By using ______________ you can diminish the chance of data leakage.
  15. Compute private key (d, p, q) given public key (e=23, n=233 ´ 241=56,153).
  16. For p = 11 and q = 17 and choose e=7. Apply RSA algorithm where Ciphermessage=11 and thus find the plain text.
  17. For p = 11 and q = 17 and choose e=7. Apply RSA algorithm where PT message=88and thus find the CT.
  18. For p = 11 and q = 19 and choose d=17. Apply RSA algorithm where Cipher message=80 and thus find the plain text.
  19. For p = 11 and q = 19 and choose e=17. Apply RSA algorithm where message=5 andfind the cipher text.
  20. For the AES-128 algorithm there are __________ similar rounds and _________ roundis different.
  21. How many computation rounds does the simplified AES consists of?
  22. How many rounds does the AES-192 perform?
  23. How many step function do Round 1 and 2 each have in S-AES?
  24. In RSA, Ф(n) = _______ in terms of p and q.
  25. In the RSA algorithm, we select 2 random large values ‘p’ and ‘q’. Which of the following is the property of ‘p’ and ‘q’?
  26. n = 35; e = 5; C = 10. What is the plaintext (use RSA)?
  27. On comparing AES with DES, which of the following functions from DES does not have an equivalent AES function?
  28. People will normally think it as a normal/regular file and your secret message will pass on without any _____________
  29. Perform encryption on the following PT using RSA and find the CT. p = 5; q = 11; M= 9.
  30. Perform encryption on the following PT using RSA and find the CT. p = 7; q = 11; M= 8.
  31. RSA is also a stream cipher like Merkel-Hellman.
  32. The 4×4 byte matrices in the AES algorithm are called_____
  33. The DES algorithm has a key length of ______.
  34. The Initial Permutation table/matrix is of size _____.
  35. The inverse transformation matrix times the forward transformation matrix equals the identity matrix.
  36. The main motive for using steganography is that hackers or other users can hide a secret message behind a ______________.
  37. The number of unique substitution boxes in DES after the 48 bit XOR operationare___.
  38. The S-Box is used to provide confusion, as it is dependent on the unknown key.
  39. There is an addition of round key before the start of the AES round algorithms.
  40. What is the expanded key size of AES-192?
  41. What is the key size in the S-AES algorithm?
  42. What is the number of possible 3 x 3 affine cipher transformations?
  43. Which algorithm among- MARS, Blowfish, RC6, Rijndael and Serpent -was chosen asthe AES algorithm?
  44. Which block mode limits the maximum throughput of the algorithm to the reciprocal of the time for one execution?
  45. Which mode of operation has the worst “error propagation” among the following?
  46. Which of the following is a faulty S-AES step function?
  47. Which of the following is a natural candidates for stream ciphers?
  48. Which one of the following is not a cryptographic algorithm- JUPITER, Blowfish, RC6, Rijndael and Serpent?
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