# Bcrypt

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Bcrypt password hashing library for Elixir.

Bcrypt is a well-tested password-based key derivation function that
can be configured to remain slow and resistant to brute-force attacks
even as computational power increases.

## Compatibility with other Bcrypt libraries

This version is based on the OpenBSD version of Bcrypt and supports
the `$2b$` and `$2a$` prefixes. For advice on how to use hashes with
the `$2y$` prefix, see [this issue](

## Changes in version 2

In version 2.0, bcrypt_elixir has been updated to implement the Comeonin
and Comeonin.PasswordHash behaviours.

It now has the following two additional convenience functions:

* `add_hash/2`
  * same as Comeonin.Bcrypt.add_hash in Comeonin version 4
  * hashes a password and returns a map with the password hash
* `check_pass/3`
  * same as Comeonin.Bcrypt.check_pass in Comeonin version 4
  * takes a user struct and password as input and verifies the password

## Installation

1. Add bcrypt_elixir to the `deps` section of your mix.exs file:

If you are using Erlang >20:

def deps do
    {:bcrypt_elixir, "~> 2.0"}

If you are using Erlang 19 or below:

def deps do
    {:bcrypt_elixir, "~> 0.12"}

2. Make sure you have a C compiler installed.
See the [Comeonin wiki]( for details.

3. Optional: during tests (and tests only), you may want to reduce the number of rounds
so it does not slow down your test suite. If you have a config/test.exs, you should

config :bcrypt_elixir, :log_rounds, 4

## Comeonin wiki

See the [Comeonin wiki]( for more
information on the following topics:

* [algorithms](
* [requirements](
* [deployment](
  * including information about using Docker
* [references](

## Contributing

There are many ways you can contribute to the development of this library, including:

* reporting issues
* improving documentation
* sharing your experiences with others
* [making a financial contribution](#donations)

## Donations

First of all, I would like to emphasize that this software is offered
free of charge. However, if you find it useful, and you would like to
buy me a cup of coffee, you can do so at [paypal](

### Documentation

### License

BSD. For full details, please read the LICENSE file.