Unprintable

Challenge has been out for a while with no solves. Any clues?

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  • Check who did the firstblood :)

    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

  • Type your comment> @R4J said:

    hint for the challenge: https://i.imgur.com/ITNnaXP.png

    lmao. that's actually a nice subtle hint.

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

  • Type your comment> @Xentropy said:

    Type your comment> @R4J said:

    hint for the challenge: https://i.imgur.com/ITNnaXP.png

    lmao. that's actually a nice subtle hint.

    ;)

    R4J

  • 0Z00Z0
    edited November 2019

    Hmm. How would ET know the English language (never mind any other terrestrial language) a-priori to enable him/her/it to write a message in HTB{s0m3_t3xt} format? :-)

    printable or otherwise.

  • sampriti is a madman for blooding this as fast as he did. Took me 2 days to wrap my head around this. Feels good though.

    snuggles

  • Now I know why we can't find a way to communicate with strangers from space. Thanks @sampriti for little nudge ;)

    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

  • any nudges, i'm lost ! :D

    Respect if i helped you ;)

  • I could use some pointers on this one. I tried common image steganography techniques and none seems to work. Thank you in advance!

  • so close and yet so far!
    thanks @Kucharskov for nudging:)

    Rayz

  • can i get a nudge.. I am starting to think I'm stuck in the white bear... black mirror episode..

    VSamIAmV#4930

  • still got nothing help me with this

  • edited February 10

    I solved it, but I do not understand the substitution logic, is there some hidden logic that could explain substitutions?

    joeblogg801

  • I found the flag!
    @TRX, I hate you, why did you have to do that?

  • TRXTRX
    edited April 26
    Type your comment> @5l1ph4ck3r said:
    > I found the flag!
    > @TRX, I hate you, why did you have to do that?

    Because its interesting and fun :trollface:
  • Losing it on this one. Any pointers?

  • Hi, any hints to start on this challenge?

    No idea where to start... Thought it was some famous software, but nothing found.

    Thanks

    godylocks
    If my hint has been helpful, a +Respect would be greatly appreciated

  • can i get a nudge

  • Type your comment> @Matgro said:

    Hi, any hints to start on this challenge?

    No idea where to start... Thought it was some famous software, but nothing found.

    Thanks

    Still looking for any hint
    Thanks

    godylocks
    If my hint has been helpful, a +Respect would be greatly appreciated

  • Hi, I am totally lost with this challenge, any hint?

    Thanks
  • Must ask... is this true stego, or more like a really obscure crypto problem? Not griping, it just changes my approach to the problem.
    Thanks!

  • edited July 29

    Type your comment> @JumpingLlama said:

    Must ask... is this true stego, or more like a really obscure crypto problem? Not griping, it just changes my approach to the problem.
    Thanks!

    Thanks to Kucharskov for helping me with the first part. I am learning a lot, working on the second part!

    Edit- got the flag. To answer my own question, I do not think this is "classical" Stego, nor do I think it is Crypto, exactly (but still lots of fun, especially if you enjoy suffering). Like joeblogg801 above, I do not understand why the substitution logic is supposed to be exactly the way it is. Is it based on a classical algorithm of some kind? I have theories but don't want to post spoilers. If anyone has a clear explanation, please teach me!

  • edited August 7

    Solved, I really liked this challenge

    Thanks a lot to JumpingLlama, also @R4J that hint for final step is cool af

    godylocks
    If my hint has been helpful, a +Respect would be greatly appreciated

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