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How Passwords Work, in 90 seconds

Tonight in Cryptography I'm going to be going over a lot of modern-day computer security issues, so I figured I'd give you a 90-second rundown of how passwords [should] work.

In the same way that people have fingerprints, so do words and phrases. They're just called hashes instead. And just like with people, practically every bushel of letters has a different hash.

A hash is made with is a formula that takes the word and converts it into a...

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