# unix-crypt

Rust reimplementation of various Unix crypt() password algorithms.

Capable of producing and verifying password hashes suitable for use in [`shadow`][shadow.5] and
[`htpasswd`][htpasswd.1] files. See [crypt.5] for information about algorithms and hash formats.

⚠️ Do not use this crate as a general purpose password library.

TODO: Concrete spec of what this library permits and doesn't permit, as implementations and manual
pages tend to diverge pretty significantly.

Supported algorithms:

- bcrypt (Version 2b)
- sha512crypt
- sha256crypt
- Apache MD5 ("apr1")

Algorithms considered obsolete or insecure are not implemented, for example sha1crypt or descrypt.

[crypt.5]: https://man.archlinux.org/man/crypt.5.en
[htpasswd.1]: https://man.archlinux.org/man/htpasswd.1.en
[libxcrypt]: https://github.com/besser82/libxcrypt
[shadow.5]: https://man.archlinux.org/man/shadow.5.en