• Fillicia@sh.itjust.works
    link
    fedilink
    arrow-up
    0
    ·
    4 months ago

    The part where this falls flat is that using dictionary words is one of the first step in finding unsecured password. Starting with a character by character brute force might land you on a secure password eventually, but going by dictionary and common string is sure to land you on an unsecured password fast.

        • Zangoose@lemmy.world
          link
          fedilink
          arrow-up
          0
          ·
          4 months ago

          That’s true but in practice it wouldn’t take 60^11 tries to break the password. Troubador is not a random string and all of the substitutions are common ( o -> 0, a ->4, etc. ). You could crack this password a lot easier with a basic dictionary + substitution brute force method.

          I’m saying this because I had an assignment that showed this in an college cybersecurity class. Part of our lesson on password strength was doing a brute force attack on passwords like the one in the top of the xkcd meme to prove they aren’t secure. Any modern laptop with an i5 or higher can probably brute force this password using something like hashcat if you left it on overnight.

          Granted, I probably wouldn’t use the xkcd one either. I’d either want another word or two or maybe a number/symbol in between each word with alternating caps or something like that. Either way it wouldn’t be much harder to remember.

          • 14th_cylon@lemm.ee
            link
            fedilink
            arrow-up
            1
            ·
            4 months ago

            Troubador is not a random string

            except it is not troubador. it is troubador, ampersand, digit.

            if you know there are exactly two additional characters and you know they are at the end of the string, the first number is really slightly bigger (like 11 times)

            once the random appendix is 3 characters or more, the second number wins

            https://www.wolframalpha.com/input?i2d=true&i=Divide[Power[2048%2C4]%2CPower[256%2C3]*Power[2%2C4]*4*500000]

            and moral of the story is: don’t use xkcd comic, however funny it is, as your guidance to computer security. yes, the comic suggestions are better than having the password on a post-it on your monitor, but this is 21st century ffs, use password wallet.