https://github.com/benmcollins/libjwt
The C JSON Web Token Library +JWK +JWKS
https://github.com/benmcollins/libjwt
json jwk jwk-to-pem jwks jwkset jwt jwt-auth jwt-authentication jwt-authorization jwt-token pem-to-jwk
Last synced: 5 days ago
JSON representation
The C JSON Web Token Library +JWK +JWKS
- Host: GitHub
- URL: https://github.com/benmcollins/libjwt
- Owner: benmcollins
- License: mpl-2.0
- Created: 2015-05-18T02:42:43.000Z (almost 10 years ago)
- Default Branch: master
- Last Pushed: 2025-03-31T11:43:31.000Z (15 days ago)
- Last Synced: 2025-04-03T04:09:49.949Z (12 days ago)
- Topics: json, jwk, jwk-to-pem, jwks, jwkset, jwt, jwt-auth, jwt-authentication, jwt-authorization, jwt-token, pem-to-jwk
- Language: C
- Homepage: https://libjwt.io/
- Size: 3.14 MB
- Stars: 370
- Watchers: 29
- Forks: 168
- Open Issues: 6
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-jwt - libjwt - C Library. (Libraries / C)
README
---
[](https://codecov.io/gh/benmcollins/libjwt)
[](https://maclara-llc.com)
> [!WARNING]
> Version 3 of LibJWT is a complete overhaul of the code. Please see documentation for usage.
## :bulb: Supported Standards
Standard | RFC | Description
-------- | :------------------------------------------------------------------------: | ----------------------
``JWS`` | :page_facing_up: [RFC-7515](https://datatracker.ietf.org/doc/html/rfc7515) | JSON Web Signature
``JWE`` | :page_facing_up: [RFC-7516](https://datatracker.ietf.org/doc/html/rfc7516) | JSON Web Encryption
``JWK`` | :page_facing_up: [RFC-7517](https://datatracker.ietf.org/doc/html/rfc7517) | JSON Web Keys and Sets
``JWA`` | :page_facing_up: [RFC-7518](https://datatracker.ietf.org/doc/html/rfc7518) | JSON Web Algorithms
``JWT`` | :page_facing_up: [RFC-7519](https://datatracker.ietf.org/doc/html/rfc7519) | JSON Web Token
> [!NOTE]
> Throughout this documentation you will see links such as the ones
> above to RFC documents. These are relevant to that particular part of the
> library and are helpful to understand some of the specific standards that
> shaped the development of LibJWT.
## :construction: Build Prerequisites
### Required
- [JANSSON](https://github.com/akheron/jansson) (>= 2.0)
- [CMake](https://cmake.org) (>= 3.7)
### Crypto support
- OpenSSL (>= 3.0.0)
- GnuTLS (>= 3.6.0)
- MbedTLS (>= 3.6.0)
> [!NOTE]
> OpenSSL is required and used for JWK(S) operations.
### Algorithm support matrix
JWS Algorithm ``alg`` | OpenSSL | GnuTLS | MbedTLS
:---------------------------- | :----------------- | :----------------- | :----------------------
``HS256`` ``HS384`` ``HS512`` | :white_check_mark: | :white_check_mark: | :white_check_mark:
``ES256`` ``ES384`` ``ES512`` | :white_check_mark: | :white_check_mark: | :white_check_mark:
``RS256`` ``RS384`` ``RS512`` | :white_check_mark: | :white_check_mark: | :white_check_mark:
``EdDSA`` using ``ED25519`` | :white_check_mark: | :white_check_mark: | :x:
``EdDSA`` using ``ED448`` | :white_check_mark: | :white_check_mark: ``>= 3.8.8`` | :x:
``PS256`` ``PS384`` ``PS512`` | :white_check_mark: | :white_check_mark: | :white_check_mark:``*``
``ES256K`` | :white_check_mark: | :x: | :white_check_mark:
``*`` RSASSA-PSS support in MbedTLS depends on Mbed-TLS/TF-PSA-Crypto#154
### Optional
- [Check Library](https://github.com/libcheck/check/issues) (>= 0.9.10) for unit
testing
- [Doxygen](https://www.doxygen.nl) (>= 1.13.0) for documentation
## :books: Docs and Source
:link: [Current Docs](https://libjwt.io)
:link: [Legacy Docs v2.1.1](https://libjwt.io/stable)
:link: [GitHub Repo](https://github.com/benmcollins/libjwt)
## :package: Pre-built Packages
LibJWT is available in most Linux distributions as well as through
[Homebrew](https://formulae.brew.sh/formula/libjwt#default)
for Linux, macOS, and Windows.
## :hammer: Build Instructions
### With CMake:
$ mkdir build
$ cd build
$ cmake ..
$ make