# NoWayJose
> Rust NIF for JWT signing
## Features
In its current state, this library only supports signing JWTs using the `RS512`
algo with a DER or PEM encoded RSA private key.
## Installation
```elixir
def deps do
[
{:no_way_jose, "~> 0.2.0"}
]
end
```
## Generating a key
In order to sign a JWT an RSA private key must be provided.
### In code
NoWayJose allows generating an RSA private key directly in code by specifying
the number of bits and an encoding format (PEM or DER):
```elixir
# PEM encoded RSA private key
NoWayJose.generate_rsa(4096, :pem)
```
```elixir
# DER encoded RSA private key
NoWayJose.generate_rsa(4096, :der)
```
## Basic usage
```elixir
# Read a private signing key from a file
{:ok, key} = File.read("private.der")
# Or generate a new one in code
key = NoWayJose.generate_rsa(4096, :der)
# Build your claims
claims = %{
"exp" => 1571065163,
"iat" => 1571061563,
"iss" => "example.com",
"jti" => "a3a31258-2450-490b-86ed-2b8e67f91e20",
"nbf" => 1571061563,
"scopes" => [
"posts.r+w",
"comments.r+w"
],
"sub" => "4d3796ca-19e0-40e6-97fe-060c0b7e3ce3"
}
# Sign the claims into a JWT
{:ok, token} = NoWayJose.sign(claims, alg: :rs512, format: :der, key: key)
```
## Documentation
Documentation can be be found at [https://hexdocs.pm/no_way_jose](https://hexdocs.pm/no_way_jose).
## Roadmap
Please check the [Roadmap](https://github.com/scrogson/no-way-jose/projects/1)
if you're curious about the future of this project.
## Etymology
A rhyming play on words to indicate that this library does not depend on [JOSE](https://github.com/potatosalad/erlang-jose).
## License
Apache 2.0
