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Very right. A lot of people do something naive like just hashing passwords with a standard cryptographic hash function, figuring that they're designed and implemented by experts, and they end up with a careful implementation of the wrong algorithm.

Of course, in the case of password hashing, the answer is pretty easy. (Spoilers: scrypt if there's an easy library for your language of choice, bcrypt otherwise, and PBKDF2 if you need to justify your decision to someone who habitually wears a tie.)




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