Modern password hashes are designed to use a large amount of RAM in addition to CPU time in order to make password cracking using ASICs and GPUs more difficult.

Modern password hashes are designed to use a large amount of RAM in addition to CPU time in order to make password cracking using ASICs and GPUs more difficult. The paper on Argon2[1], the winner of the recent password hashing competition, would be a good read if you're interested in learning more about how password hashes are designed. [1] https://www.cryptolux.org/images/0/0d/Argon2.pdf https://www.cryptolux.org/images/0/0d/Argon2.pdf