Obligatory https://neal.fun/password-game/
Nooo! The fireeee! This would be better with a physical keyboard.
Link for compatibilityMy final password was: Pass5@JulyXXXV+Shell+n2by7+droop+🌚+Peru+2020+Qd7+🥚+Zn+BBBBB
The hardest 2 were chess and guessing the country. Maybe atomic numbers with combination with roman numerals, but that’s sorta fine.
That’s where I got derailed on my best run. Chess was easy the first time and maddening the next two.
Ah I was just copying the URL to post the same thing. It’s such a fun game to go through, although I gave up pretty quickly
Tried it again, made it to the chess step
One of my coworkers got super into it and got into the high 20s I made an off-hand comment about wondering what it does for rule 34 and he responded “gasp I must know!” Then a couple days later messages me a screenshot on teams. Spoiler: it goes “ehhh let’s just skip this rule”
Use lichess.org’s board editor
You’re telling me I didn’t need to use my brain?
You’re on programmer humor, we don’t do “Brain” here.
The right answer is use a password manager to generate and store a long password. Then it doesn’t matter.
Best practice in 2023 is a simple, sufficiently long but memorable passphrase. Excessive requirements mean users just create weak passwords with patterns.
[Capital letter]basic word(number){special character}
Enforcing password changes doesnt help either. It just creates further patterns. The vast majority of compromised credentials are used immediately or within a short time frame anyway. Changing the password 2 months later isnt going to help and passwords like July2023!, which are common, are weak to begin with.
A non expiring, long, easily remembered passphase like
forgetting-spaghetti-toad-box
Is much more secure than a short password with enforced complexity requirements.Drop “memorable”. 99.9% of your passwords should be managed by your password manager and don’t need to be memorized. On one or two passwords that you actually need to type (like your computer login) need to be memorable.
99.9% of your passwords should be managed by your password manager
this looks like a sensible approach until you remember password managers can be cracked, too. I’m with GP on this, a passphrase is easier to remember and is good enough for most use cases, if you need more security you should be using some form or another of 2FA anyway
I am kinda paranoid about password managers. My passwords are stored somewhere on the computer, all of them, and I don’t like that idea. I can exercise my brain.
I have 350 items in my BW vault. I am not memorizing that many passwords, I’d rather use my brain for something else.
I’ve got 1601 logins and 86 secure notes in my Bitwarden vault… no way I’m memorizing all of that lol
There was a website where I was making an account and it was like: no semicolons.
To this day I wonder if that was how they blocked sql injection.
Escaping by obstruction ^^
Infuriating fact: if a service has maximum password length limits (lower than 1000 characters), they’re reversibly storing your password and if they’re that lazy it’s probably plain text
I share your frustration, especially when the maximum password length limit is outrageously low, but they do serve a purpose.
Nope. No point in storing > 256 or even 128 chars for a password anyway. Useless storage wasted. Also it doesn’t really mean they store the password badly in the server.
Ignoring that they must be hashed to be acceptable and that it’s not possible for 1000 characters of text to add up to a waste of storage worth mentioning in pretty much any environment, it’s literally impossible for a 128 character password limit to be beneficial in any way.
A limit below that demonstrably lowers security by a huge margin.
A hashed password is always the same length though is it not?
The length limit is mostly for the user’s sake - companies don’t want people to set their passwords to 30+ character ones that they keep forgetting and call their tech support to reset.
That’s really really really annoying, as someone who has a good, strong brain-based password algorithm and hates it when websites forbid my strong password forcing me to make an exception.
Ok but are 15 characters too much?
I’ve seen 14-char limits, which are NOT reasonable
there is at least one bank that I know of with a 12 character limit
There’s a major bank in Australia that limited passwords to six characters. Exactly six. No more, no less. The passwords were also case-insensitive.
Yikes, how do banks, of all things, have such low password limits…
Couldn’t it just be that they’re using something like bcrypt which won’t take any chars above its limit into account (knowing that there’s a limit will pretty much never matter to a user but why obscure the fact)? What does it even mean to store it reversibly, just because they have a char limit doesn’t mean they are encrypting the password, could just be some frontend shenannigans as well.
Fun fact: Lemmy instances cap at 60. they’re not storing reversibly, they’re just using bcrypt and rather than pre-hashing the pw before bcrypt like most bcrypt users do, they just truncate to 60.
60 makes sense, 14 does not
reversibly?
Yeah, you actually better not save the users passwords in plain text or in an encrypted way it could be decrypted. You rather save a (salted) hashed string of the password. When a user logs in you compare the hashed value of the password the user typed in against the hashed value in your database.
What is hashed? Think of it like a crossfoot of a number:
Let’s say you have a number 69: It’s crossfoot is (6+9) 15. But if someone steals this crossfoot they can’t know the original number it’s coming from. It could be 78 or 87.
Dumb question: isn’t it irrelevant for the malicous party if it’s 78 or 87 per your example, because the login only checks the hash anyway? Won’t both numbers succesfully login?
It’s actually a really good question. What you’re explaining is called a collision, by creating the same hash with different numbers you can succesfully login.
This why some standard hashing function become deprecated and are replaced when someone finds a collision. MD5, which was used a lot to hash passwords or files, is considered insecure because of all the collisions people could find.
Additional to what others have said: The “salted” part is very relevant for storing.
There aren’t soooo many different hashing algorithms people use. So, let’s simplify the hashing again with the crossfoot example.
Let’s say, 60% of websites use this one algorithm (crossfoot) for storing your password, and someone steals the password “hashes” (and the login / email). I could ran a program that creates me a list of all possible crossfoots for all numbers for 1 to 100000.
This would give me an easy lookup table for finding the “real” number behind those hashes. (Those tables exists. Look up “rainbow tables”)
Buuuut what if I use a little bit of salt (and pepper pepper pepper) before doing my hashing / crossfooting?
Let’s use the pw “69” again and use a salt with a random number “420” and add them all together:
6 + 9 + 420 = 435
This hash wouldn’t be in my previous mentioned lookup table. Use different salts for every user and at least the lookup problem isn’t such a big problem anymore.
This was super helpful 🙏🏼 sent me down a whole other rabbit hole of learning
In the example yes.
In the real world, finding an input that produces the right hash output isn’t easy. And because a lot of users reuse passwords (don’t do it, but people do), a list of emails and passwords gives you an incredibly lazy and easy to do way to compromise accounts on other sites.
Reminds me of a funny moment in my IT internship, ahead of an audit one of the sysadmins came over and was saying “yeah so I pulled all of the department password hashes to check for weak/compromised accounts and noticed one person has the same sysadmin and user password hash” and my boss went “wait everyone doesn’t do that?” And after realizing they outed themselves turned bright red and changed their admin password
i was more wondering why a length limit implies anything about how they’re storing the password. once they receive the password they’re free to hash it any which way they want
random memory—yahoo back in the day used to hash the password in the browser before sending it to the server, but TLS made that unnecessary i guess
They may just base their limit on one or a few block sizes of the hash function.
That sounds incredibly unlikely. I would be good money that 99% of password length limits are not based on concrete limits. Things like “100 should be enough 🤷” must be way more common.
I doubt 1% of programmers are away of their hashes block size. It is also probably irrelevant since after the first round everything is fixed size anyways.
password is already in use
No way that’s an actual security threat, right?
“Password is already used by user
potatoeater420
, please choose a different password.”The only security threat would be the site itself. How do they know other users have the same password?
Options:
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They have your password in plain text in their DB. CHEFF KISS
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They aren’t using salts.
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They are using the same salt for everyone.
All of them concerning.
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This is a repost :)
deleted by creator
Are we really starting this shit here?
Everything on the internet is a repost. Calling it out adds nothing worthwhile to the conversation and just derails any conversation.