Profile image of cothan
Flag of Vietnam Dong Nai, Vietnam
Member since June, 2016
3 Anbefalinger


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I won prizes in security competitions, reversing, cracking, cryptography analyst. A Phd in Post Quantum Cryptography
$20 USD/t
20 anmeldelser
  • 100%Fuldførte jobs
  • 100%Inden for budgettet
  • 98%Til tiden
  • 35%Genansættelsesrate


Seneste bedømmelser

  • image of danahmanchester Project for cothan -- 3 $80.00 USD

    “he provided great work in cryptography Thanks cothan,”

  • image of spala94 Cryptography problem solving $95.00 AUD

    “Excellent ! Easy to communicate with & delivered high quality work on time . I will definitely hire again in the future & I recommend him to anyone looking for quality work! :)”

  • image of kochs56 Project for cothan $200.00 USD

    “Thank you if I have any further questions, I will contact you. Really appreciate your efforts!”

  • image of kochs56 linux capturing Dynamic Forensics $160.00 USD

    “Thank you for your work.”

  • image of sabuqube Project for cothan $60.00 CAD

    “Use was excellent as always, well definitely hire again.”

  • image of asiach1004 Hash SHA and explain £13.00 GBP

    “Perfect Work Perfect Man will hire in knows his stuff”


eCSI National Hero (2015)

BalaBit, SilentSignal

4th Place. You can verify it here: It's a security competition game, players have to find ways to exploit the server to get a flag. The winner is the one who hack the most server (the more server get hack, the game gets harder).


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