All three are good choices, with their own advantages and disadvantages. Argon2 may be clearly the best choice a few years from now, but both the algorithm and

All three are good choices, with their own advantages and disadvantages. Argon2 may be clearly the best choice a few years from now, but both the algorithm and software implementations are immature. It's makes sense to be conservative and go with the more battle-tested options. (Also last I looked Python has no good scrypt bindings.) https://paragonie.com/blog/2016/02/how-safely-store-password-in-2016 https://paragonie.com/blog/2016/02/how-safely-store-password... https://news.ycombinator.com/item?id=11118720 https://news.ycombinator.com/item?id=11118720