[CRYPTO] Optimus Prime

Let's start the discussion on the challenge

Comments

  • Hope you like the travel! Please avoid spoilers!!

  • edited October 2019

    Thats very strange for me but i cannot even connect to the challenge. Even curl (with any 0X parameter) hangs out. Could somebody PM me if that's normal case?

    If you need help with something, PM me how far you've got already and what you've tried. I won't respond to profile comments. And remember to +respect me if I helped you <3

  • Enjoyed the challenge @Xh4h, nice and easy, makes me feel smarter than I am :)

    @Kucharskov should be able to connect just fine with nc.

    snuggles

  • Type your comment> @snuggles said:

    Enjoyed the challenge @Xh4h, nice and easy, makes me feel smarter than I am :)

    @Kucharskov should be able to connect just fine with nc.

    Awesome!! Glad you like it :)

  • Nice challenge, I didn't really understand why the other menu options are there though. If you are stuck it's definitely worth thinking about the title of the challenge and how it might relate to the cryptosystem being presented!

  • Beautiful challenge. It took me a long time to study and taught me a few things about cryptography. Thanks @Xh4h

  • Well, I tried lot of attacks but I think I'm missing something, if anyone wants to discuss about it feel free to PM me

  • @hyperreality said:

    Nice challenge, I didn't really understand why the other menu options are there though. If you are stuck it's definitely worth thinking about the title of the challenge and how it might relate to the cryptosystem being presented!

    That was the idea! :D glad you liked it haha

    @nemen said:

    Beautiful challenge. It took me a long time to study and taught me a few things about cryptography. Thanks @Xh4h

    Awesome!! :)

  • edited October 2019

    I did it! Very cool challenge with some math ;)
    I already done an automation script for passing this challenge.

    standing on a cliff and looking away
    That was Optimus Prime, and I send this message to any surviving HTB players taking refuge among the stars. He is here. He are waiting.
    music plays
    What I've Doneeeeeeeee! ♪♫

    If you need help with something, PM me how far you've got already and what you've tried. I won't respond to profile comments. And remember to +respect me if I helped you <3

  • Hi guys, I'm very new to hack the box and I'm not sure how to connect to the challenge. If someone could point me in the right direction that would be much appreciated!

  • Type your comment> @jmeyer4 said:

    Hi guys, I'm very new to hack the box and I'm not sure how to connect to the challenge. If someone could point me in the right direction that would be much appreciated!

    You press the 'start' button and then use something like netcat together with the hostname (docker.hackthebox.eu) and the port provided. However, that said, if you are new to hackthebox I suggest you try an easier challenge first.

    Xentropy
    Null | Nada- | Zip | Diddly | Zilch+

  • I had fun writing the script to solve this challenge. Thank you for creating it, @Xh4h

    limbernie
    Write-ups of retired machines

  • @limbernie said:

    I had fun writing the script to solve this challenge. Thank you for creating it, @Xh4h

    Thank you! Glad you had fun :)

  • One of the best crypto challenge in the platform! Great concept, nice use of cryptography! Congratulations! @Xh4h

  • Really need help here, cant get what the message is, any hint is appreciated.

  • Hey Author! Is there something wrong going on... I amn't recieving any email for the private key??

  • edited January 30

    I'm kinda stuck. Got public key and the encrypted password. Am I suppose to receive an email after inputting my email?

  • @P3t4 said:

    One of the best crypto challenge in the platform! Great concept, nice use of cryptography! Congratulations! @Xh4h

    Thanks man!! Good to hear that :smile:

  • Very cool <3

    Hack The Box

  • got it, special thanks to @Kucharskov . feel free to PM me. @Xh4H great challenge thank you

    m4nu

    Valiant, nothing is impossible.
    Lock by lock and one after the other is the key. You cannot open door number 9 until you have unlocked number 8.

  • Thank you @Xh4H for this challenge! It required a bit of basic socket programming before I was on my way to figuring out the flag. This is one of the rare few in the crypto category that has any relation and relevance to modern cryptography.

  • I was working on a creating a very similar challenge so when I saw it I immediately thought what it could be xD... quite surreal

    fun challenge tho!

  • I feel satisfied solving this challenge and I learned something new too...happy to help anyone who needs help

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