jwks_rsa_easy

Crates.iojwks_rsa_easy
lib.rsjwks_rsa_easy
version1.2.1
sourcesrc
created_at2021-07-16 05:52:52.902391
updated_at2021-07-18 04:10:24.130293
descriptionLibrary for validation of RS256 JWTs with remote JWKS
homepage
repositoryhttps://github.com/sopium/jwks_rsa_easy
max_upload_size
id423356
size63,356
Yin Guanhao (blckngm)

documentation

README

alcoholic_jwt

Build Status

This is a library for validation of RS256 JWTs using keys from a JWKS. Nothing more, nothing less.

RS256 is the most commonly used asymmetric signature mechanism for JWTs, encountered in for example Google's or Aprila's APIs.

The name of the library stems from the potential side-effects of trying to use the other Rust libraries that are made for similar purposes.

Usage overview

You are retrieving JWTs from some authentication provider that uses RS256 signatures and provides its public keys in JWKS format.

Example for a token that provides the key ID used for signing in the kid claim:

extern crate alcoholic_jwt;

use alcoholic_jwt::{JWKS, Validation, validate, token_kid};

// The function implied here would usually perform an HTTP-GET
// on the JWKS-URL for an authentication provider and deserialize
// the result into the `alcoholic_jwt::JWKS`-struct.
let jwks: JWKS = jwks_fetching_function();

let token: String = some_token_fetching_function();

// Several types of built-in validations are provided:
let validations = vec![
  Validation::Issuer("auth.test.aprila.no".into()),
  Validation::SubjectPresent,
];

// If a JWKS contains multiple keys, the correct KID first
// needs to be fetched from the token headers.
let kid = token_kid(&token)
    .expect("Failed to decode token headers")
    .expect("No 'kid' claim present in token");

let jwk = jwks.find(&kid).expect("Specified key not found in set");

validate(token, jwk, validations).expect("Token validation has failed!");

Under the hood

This library aims to only use trustworthy off-the-shelf components to do the work. Cryptographic operations are provided by the openssl crate, JSON-serialisation is provided by serde_json.

Commit count: 0

cargo fmt