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Lost Exponent - Pwn2Win 2021

xxMajinxx
2021-06-05
Misc

tl;dr

  • Reverse bytearray to recover matrix cflag.
  • Use first element of matrix to recover e (bruteforce &iroot)
  • Reduce the flag to finite field of a 32-bit prime, solve for each character.
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Pwn2Win Writeup Misc Matrix

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