Cipher Challenge: Medium Code-Breaking Quiz

A concise set of ten multiple-choice items designed to sharpen your decoding skills without overwhelming complexity.

brain teasermedium difficultycryptographycode breakingfrequency analysisciphershistorical cipherssubstitutionpuzzle solvingmodern encoding
Difficulty:MEDIUM

Quiz Details

Questions10
CategoryCryptography & Codes
DifficultyMEDIUM
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Quiz Questions

Answer all questions below and test your knowledge.

  1. 1

    What shift value does a classic Caesar cipher use when it rotates each letter three positions forward?

    Question 1
  2. 2

    Which analytical technique examines repeated letter sequences to guess the length of a Vigenère key?

    Question 2
  3. 3

    What is the name of the stepping anomaly where two Enigma rotors advance together?

    Question 3
  4. 4

    Identify the cipher that employs multiple substitution alphabets based on a keyword.

    Question 4
  5. 5

    Which hash algorithm is considered insecure for storing passwords due to fast computation?

    Question 5
  6. 6

    The security of a one-time pad relies on which essential condition?

    Question 6
  7. 7

    Which attack takes advantage of predictable initialization vectors in CBC mode to alter plaintext bits?

    Question 7
  8. 8

    What ancient Spartan device encoded messages by winding a strip of parchment around a staff?

    Question 8
  9. 9

    Which encoding scheme maps binary data onto a set of 64 printable characters?

    Question 9
  10. 10

    In CBC encryption, what property ensures that identical plaintext blocks produce distinct ciphertext blocks?

    Question 10

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