Support Argon2id.

[bryant]

Fixes #27.

[coder543]

what is this PR waiting on?

[ayosec]

It seems that there is a fork in https://github.com/FauxFaux/argon2min with this patch merged.

@FauxFaux Do you plan to publish your argon2min crate?

[FauxFaux]

@ayosec: After review, I am not sufficiently confident in the code to publish it under my name, so not at this time, no.

[ayosec]

After review, I am not sufficiently confident in the code to publish it under my name, so not at this time, no.

That's fair. Thanks for the response!

---

For future readers: If you need Argon2id, the best (only?) option is argonautica, which uses the reference C implementation.

[est31]

@FauxFaux did you have time to do such a review? I'd love to be able to use a good fast Rust based implementation of argon2.