You shouldn't use hash functions designed for integrity, they're fast, fast is bad for password hashing, a single AMD graphics card can compute 200M guesses per

You shouldn't use hash functions designed for integrity, they're fast, fast is bad for password hashing, a single AMD graphics card can compute 200M guesses per second for single sha-512 iterations, instead use bcrypt, scrypr or any other hash function specifically designed for key stretching. https://hashcat.net/hashcat/ https://hashcat.net/hashcat/ https://en.m.wikipedia.org/wiki/Key_stretching https://en.m.wikipedia.org/wiki/Key_stretching