this post was submitted on 20 Sep 2023
784 points (99.0% liked)
Technology
57389 readers
5853 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I am surprised that they don’t provide UUIDv4’s, feels like what they provide is somewhat guessable
https://mullvad.net/en/blog/2017/6/20/mullvads-account-numbers-get-longer-and-safer/
As they outline here, there are ~9 quadrillion possible keys, needing around 5.5 million guesses to find an account. I think they hit a nice middleground between decent entropy and still having a number you can memorize (like a credit card).
people memorize their credit card numbers?
Nowadays, not so much. In the previous decades before password managers, card vaulting, apple pay and so on: yes, if you were typing it in or writing it on forms frequently, it wasn't uncommon to just memorize it.
My point though was that there is a limit to our ability to remember long and random alphanumeric strings, and I find credit card numbers to be that limit. UUIDs are longer and have a much bigger character set.
I never put my cc in any password manager, but I also mostly just use it for online payments where I don't mind taking out the actual card to type the number in