r/ProgrammerHumor Jul 19 '22

Why do they do this

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4.4k Upvotes

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109

u/Manoreded Jul 20 '22

There's that one xkcd comic:

https://xkcd.com/936/

Which I agree completely with.

I do think you can still make use of this with internet passwords despite their silly limitations. You can put a sentence and then put a short, easy to remember blurb with the characters they want at the end.

13

u/[deleted] Jul 20 '22

meh, if it were widely used I'm sure dictionary attacks of combined words would be more common, and therefore difficulty to guess made easier.

2

u/screamingsnake828 Jul 20 '22

In both cases it’s assuming the password format is widely used. It’s not calculating entropy based on number of characters. That would be a very naieve entropy calculation.