The Rosetta Protocol Part III: The Obsidian Translation Engine

Fourth_script.txt contained pseudo-code resembling no known programming language. However, its logic bore uncanny similarity to mechanical computing routines Amina had seen in Charles Babbage’s notes. She transcribed the code into a simulation environment and activated it.

Her screen flickered. Then her speakers emitted rhythmic pulses—low-frequency audio bursts unlike anything she’d heard. When visualized, they formed waveforms with consistent spacing, like binary in Morse.

Analyzing the tones, she realized it was a language encoded through sound.

A command. A key.

CTF Challenge 3: Audio Payload Task: Analyze challenge3_audio_payload.wav. Convert frequency pulses to binary, then ASCII. Identify the embedded command sequence. The flag is hidden in the decoded command.

Hint:

Analyze wav file in https://openl.io/translate/mp3/binary.

Convert binary to ASCII

The flag is embedded in the decoded command

Submit flag as "flag{...}"

Download Audio File

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Part IV