12 lines
689 B
YAML
12 lines
689 B
YAML
slug: crypto_one_time_mistake
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title: "One-Time Mistake"
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description: "The North Pole Secret Agency uses one-time pads for the highest-value messages — or at least they should. While collecting intercepted traffic, Grinch found two ciphertexts that were, unfortunately, encrypted with the same pad. One message looks like a routine operation report (standard template), the other is labelled “CONFIDENTIAL MESSAGE”. The trafficker clearly made a one-time mistake."
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category: "crypto"
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points: 900
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is_visible: true
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complexity: 9
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attachments:
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- "public/routine_report_template.txt"
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- "public/cipher1.hex"
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- "public/cipher2.hex"
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flag_plaintext: "CTF{n3v3r_r3us3_0n3_t1m3_p4d_k3ys!}" |