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Reversing a Python marshal bytecode maze generator seeded by an LCG to find the escape path.
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Reversing a Python marshal bytecode maze generator seeded by an LCG to find the escape path.
A homemade LCG-as-cipher multiplies each flag byte by a deterministic state independent of the plaintext — the known DalCTF{ prefix recovers one state, and replaying the generator divides out the rest. The lost seed is a red herring.