Fernet takes a user-provided message (an arbitrary sequence of bytes), a key (256 bits), and the current time, and produces a token, which contains the message in a form that can't be read or altered without the key.

This package is compatible with the other implementations at https://github.com/fernet. They can exchange tokens freely among each other.

Documentation: http://hexdocs.pm/fernetex/0.5.0/

To use FernetEx with your projects, edit your mix.exs file and add it as a dependency:

defp deps do
  [{:fernetex, "~> 0.5.0"}]
end

For more information and background, see the Fernet spec at https://github.com/fernet/spec.

FernetEx is distributed under the terms of the MIT license. See the License file for details.

FernetEx comes with two useful mix tasks

• mix fernet.keygen is useful for generating keys
• mix fernet.sign key is useful for signing a message using the given key