HarshVaragiya / TestApp

codename : Secret Whistler. A PoC to Secretly transmit data to people of specific age group

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TestApp

This was a parody PoC app made to secretly transmit data in such a way that people of only a certain age group can hear the secret message being transmitted.

  • Based on the fact that humans cannot hear higher frequencies when they get older.
  • We first select a frequency that we can barely hear - to ensure that people older than us can hardly hear it.
  • Take a string. Convert it to Morse code that can be transmitted. Transmit it as a sine wave of that frequency.
  • Select a frequency only you can hear and you can transmit yourself any message you want secretly*
  • Might also be useful in case of a zombie apocalypse if they can't hear higher frequencies (who knows)

The secret message can be heard by anyone who has an age lower than that - Ideally

The message can be decoded to text by anyone with the knowledge what it is.

Audio Spectrum

  • For selected configuration with transmit_freq as 19990 Hz and a time_step of 0.4 seconds i was able to make out the code clearly
  • Spectrum Files attached Assets/spectrum1.jpeg Assets/spectrum2.jpeg

Warning

  • Selecting Extreme Frequencies might cause headaches and/or auditory distress
  • DO NOT USE IT TO CHEAT IN EXAMS. I AM NOT RESPONSIBLE IF YOU GET CAUGHT.

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codename : Secret Whistler. A PoC to Secretly transmit data to people of specific age group


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