reverseProeasy

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taipanbyte

Task: ELF binary that checks a flag using XOR and hex encoding. Solution: Recognized that double XOR with same key and hex encode/decode pair form an identity function, so the hardcoded string in .rodata is the flag.

$ ls tags/ techniques/
hex_encodingstatic_analysisxorobfuscationelfnoop_transform
xor_cancellationstatic_string_extractionidentity_transform_detection
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