[CRYPTO] Optimus Prime
Let's start the discussion on the challenge
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Comments
Hope you like the travel! Please avoid spoilers!!
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
Enjoyed the challenge @Xh4h, nice and easy, makes me feel smarter than I am
@Kucharskov should be able to connect just fine with nc.
Type your comment> @snuggles said:
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:
That was the idea!
glad you liked it haha
@nemen said:
Awesome!!
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
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:
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.
Null | Nada- | Zip | Diddly | Zilch+
I had fun writing the script to solve this challenge. Thank you for creating it, @Xh4h
Write-ups | Discord - limbernie#0386
@limbernie said:
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??
I'm kinda stuck. Got public key and the encrypted password. Am I suppose to receive an email after inputting my email?
@P3t4 said:
Thanks man!! Good to hear that
Very cool
got it, special thanks to @Kucharskov . feel free to PM me. @Xh4H great challenge thank you
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
Can't figure out what cryptosystem is in play here. I have a general idea of how to attack, but don't know how to parse what I'm seeing in order to apply the attack.
LegendarySpork
It's like going back to childhood ... xD
Thanks for this challenge @Xh4H
Got it. This was very satisfying. To get traction you need to have some familiarity with what the typical crypto is for communication sessions. It's basically an inference, especially since the language is used a bit loosely. (This was the hardest part for me! I went back and did research and did a few relevant exercises. Then I got hung up on parsing, which was not necessary.) Then you need to try to see if there are patterns or commonalities in what you see from instance to instance. Finally there is some simple math. Knowing how things are typically done is helpful. (fwiw I didn't do any socket programming -- nothing nearly that complicated)
LMK if you want some hints.
Thanks to @m4nu and @Civero for some nudges.
LegendarySpork
@Xh4H OMG!!! Really really nice challenge! I love these kind of math. I will respect you. That motivates me to get a higher graduation in informatics.
I used python to solve this challenge. The mathematics behind this topics is really interesting and understandable, but the programming-part was hard (for me...). I didn't find online tools/online calculators.
Hello friend. Hello friend? I am always happy to help you, but also expect clear information about what you have achieved so far. Together we will raise the flag!
Remember: Giving respect is a matter of honor
edit got it it was really an intresting challenge its all about some basic mathematics knowledge that i was missing every time thanks for any one that helps me i was blind as usual hahah
going for mission impossible now