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xkcd #2958: Hatchery (xkcd.com)

submitted 4 months ago by schnurrito@discuss.tchncs.de to c/xkcd@lemmy.world

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alt text:

Anadromous fish are more vulnerable in rivers, since the lack of salt means you can quickly crack passwords using rainbow trout tables.

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[–] Turun@feddit.de 32 points 4 months ago (4 children)

Lmao I love the word jokes. Especially the alt text one.

[–] Tja@programming.dev 26 points 4 months ago (3 children)

For the people out of the loop: salt is a term used for a piece of data to add to a password before hashing it, so two people with the same password will appear to have different passwords in the DB. So my password will be stored as xyz in the DB while Joe's password will be ABC, although we both use "hunter2".

It prevents an attack using so called "rainbow tables", which is a dictionary of hashes and their corresponding password (so xyz -> hunter2).

[–] massive_bereavement@fedia.io 10 points 4 months ago (1 children)

Wait a second... how did you know my password?

[–] Eylrid@lemmy.world 11 points 4 months ago

All I see is *******

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