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Unique Challenge

unique

  • challenge description

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  • looking at the captured signal

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  • channel 1 is the digital data
  • channel 2 is the analog representation of the digital
  • channel 3 is the inverted analog signal
  • now going through the file it’s not a usart , so we have to identify the protocol used

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  • let’s try can

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  • i played with the baud rate a little until i reached 125000
  • i found that

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  • the flag

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  • HTB{v1n_c42_h4ck1n9_15_1337!*0^}
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