Where communities thrive


  • Join over 1.5M+ people
  • Join over 100K+ communities
  • Free without limits
  • Create your own community
People
Activity
    0xACAB
    @fabacab
    I also don't know what the "From Binary" operation in CyberChef really does. If I run the first bit string we get into bc(1) I get this for various output bases:
    echo "obase=16; ibase=2; 00110010" | bc
    32
    echo "obase=10; ibase=2; 00110010" | bc
    50
    echo "obase=08; ibase=2; 00110010" | bc
    62
    Oh wait I just realized what the From Binary operation does, lol. It turns it into ASCII. Because in ASCII, hex 32 is the ASCII 2, and so is decimal 50, and so is octal 62.
    zach mandeville
    @zachmandeville_gitlab
    ah!
    haha, but I still don't know what it means :/
    0xACAB
    @fabacab
    Yeeeeeah…me neither.
    I think your guess of it being an alphabet makes sense. 26 being the highest number is probably not a coincidence.

    Also this:

    for i in $(urldecode $(base64 --decode ~/Downloads/Beginner\ 10.txt | sed -e 's/^/%/' -e 's/ /%/g') | sed -e '-----/0/g' -e 's/.----/1/g' -e 's/ //g'); do printf "\x"$(echo "obase=16; ibase=2; $i" | bc) ; done
    26 5 26 9 25 22 26 25 26 9

    is the exact same output as from CyberChef, which proves that is in fact what it's doing. Unfortunately I don't know what these strings of numbers mean.

    zach mandeville
    @zachmandeville_gitlab

    hmmm. the hint is 'hope you been paying attention', which ties to how many different decodings we've done so far, each being the answer to a previous q.

    The other ciphers to try would be AZ126, Atbash, Bacon, and rot13/caesar

    0xACAB
    @fabacab
    I tried a number of those in CyberChef already but couldn't make heads or tails of the output, though maybe I got the ordering wrong.
    zach mandeville
    @zachmandeville_gitlab
    yah...and we've done the a1z26 and atbash already, and it doesn't look like a bacon cipher (that'd be a collection of 5 character strings like AAABB ABABA)
    so really we'd just do rot13...but that doesn't give anything meaningful. I don't know, the distribution in that cipher seems weird. there's only 5 unique numbers/letters
    0xACAB
    @fabacab
    It does seem a little short, but I'm fairly confident we aren't losing any data in the translation process.
    0xACAB
    @fabacab
    So here is the entire CyberChef recipe for the challenge so far, and I think it's correct.
    0xACAB
    @fabacab
    Welp, I'm gonna come back to this a bit later. That link should be sufficient for anyone else who wants to jump in and try to solve it with us.
    aubrel
    @aubrel

    The people behind Covid Watch (https://www.covid-watch.org/about) are looking for help on Java development and/or help with containerizing their backend server:

    https://github.com/Co-Epi/coepi-backend-aws

    There's probably a lot more to do on that project, too, it seems cool!

    "Reduce the spread of COVID-19 without increasing the spread of surveillance.

    Covid Watch aims to empower people to protect their communities from COVID-19 without sacrificing their personal privacy."

    1 reply
    techlearningcollective
    @techlearningcollective
    We've opened our Hacker Trivia Night game weekend up for anyone who wants to play. Enjoy, especially if this is your first time. :)
    yoni9091
    @yoni9091
    hey
    where can i find the list of communities you support
    ?
    techlearningcollective
    @techlearningcollective
    Our Web site's About page links out to all the groups we support in the various ways that we do.
    0xACAB
    @fabacab
    There's another apparently noob-friendly CTF happening next week. Anyone from here into it? https://ctf.noobarmy.tech/
    Olu v3.0.0
    @oluoluoxenfree_twitter
    hey hey, are additional courses under development? Also, are there examples of what kind of time locally for you all the workshops would run at? In GMT so just checking before I get over excited :)
    4 replies
    techlearningcollective
    @techlearningcollective
    @/all We just released a new hybrid lab/project that combines topics from several workshops: run your own Tech Learning Collective Web site as a Tor Onion site (Dark Web site). Feel free to try it out and offer feedback here, via email, on GitHub, or during a workshop! Enjoy!
    Leo
    @immleo
    bey guys, how does one get a pre-enrollment questionnaire?
    2 replies
    acoelho
    @acoelho
    Hey there, no instructor came to today's Guided Tour event, hope everything is okay!
    1 reply
    Aiden
    @0Ky
    Hey guys, I was reading an article about using "Signal without giving out your phone number". Although, you may be able to register without a number, but how would you add or message others if the recipient doesn't hand over their phone number to you?
    1 reply