You have received the following encrypted message: “Xjnvw lc sluxjmw jsqm wjpmcqbg jg wqcxqmnvw; xjzjmmjd lc wjpm sluxjmw jsqm bqccqm zqy.” Zlwvzjxj Zpcvcol You can guess that it is a quote. Who said it?Flag format: apuCTF{flag}

Question

BlackTom AI · Accepted Answer

Question restatement: You have received an encrypted message and are asked to guess who said the quote. Flag format is apuCTF{flag}.

Option analysis: This question is presented as a short-answer rather than a multiple-choice item, and the provided data shows there are no answer options to evaluate.

Because there are no listed choices, there are no individual options to assess for correctness or incorrectness. In a typical multiple-choice setup, you would examine each option for plausibility, common misconceptions, or factual inaccuracies, and explain why the correct option fits the quote and why the others do not. Here, that step-by-step option-by-option analysis cannot be completed due to the absence of choices.

What you can do with encrypted quotation clues in general:
- Identify the cipher type: common possibilities include Caesar shifts, substitution ciphers, or Vigenère-like schemes. The presence of a consistent letter pattern and spacing often hints at a monoalphabetic substitution or a fixed-shift cipher.
- Attempt quick checks: test a Caesar shift by aligning common short words (the, and) with the ciphertext. If a shift reveals recognizable words, you’re on the right track.
- Validate potential decodings: once you suspect a plaintext, compare it to well-known quotes attributed to famous figures to see if the attribution aligns.

Addressing the provided answer: The associated answer text indicates Miyamoto Musashi as the quote’s author (apuCTF{Miyamoto Musashi}). If you were decrypting this independently, you would verify by decoding the ciphertext to a known Musashi quote or by finding corroborating stylistic elements in the plaintext that match his known sayings. In a typical scoring scheme, a correct attribution would be grounded in a successful decryption that yields a quotation commonly attributed to that author.

Note on formatting: Since there are no options to comment on, this reasoning focuses on the general approach to decrypting the message and validating the attribution, rather than option-by-option justification.

Practical CTF Strategies (112025-MHH) Mini CTF Lab Challenges Series - Applied Cryptography

You have received the following encrypted message: “Xjnvw lc sluxjmw jsqm wjpmcqbg jg wqcxqmnvw; xjzjmmjd lc wjpm sluxjmw jsqm bqccqm zqy.” Zlwvzjxj Zpcvcol You can guess that it is a quote. Who said it?Flag format: apuCTF{flag}

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