mirror of
https://github.com/BitskiCo/jwk-rs
synced 2024-11-22 03:49:22 +00:00
70 lines
2.3 KiB
Markdown
70 lines
2.3 KiB
Markdown
# jsonwebkey
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*[JSON Web Key (JWK)](https://tools.ietf.org/html/rfc7517#section-4.3) (de)serialization, generation, and conversion.*
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Note: requires rustc nightly >= 1.45 for conveniences around fixed-size arrays.
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**Goals**
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tl;dr: get keys into a format that can be used by other crates; be as safe as possible while doing so.
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- Serialization and deserialization of _Required_ and _Recommended_ key types (HS256, RS256, ES256)
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- Conversion to PEM for interop with existing JWT libraries (e.g., [jsonwebtoken](https://crates.io/crates/jsonwebtoken))
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- Key generation (particularly useful for testing)
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**Non-goals**
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- be a fully-featured JOSE framework
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## Examples
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### Deserializing from JSON
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```rust
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extern crate jsonwebkey as jwk;
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// Generated using https://mkjwk.org/.
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let jwt_str = r#"{
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"kty": "oct",
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"use": "sig",
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"kid": "my signing key",
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"k": "Wpj30SfkzM_m0Sa_B2NqNw",
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"alg": "HS256"
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}"#;
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let jwk: jwk::JsonWebKey = jwt_str.parse().unwrap();
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println!("{:#?}", jwk); // looks like `jwt_str` but with reordered fields.
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```
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### Using with other crates
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```rust
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extern crate jsonwebtoken as jwt;
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extern crate jsonwebkey as jwk;
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#[derive(serde::Serialize, serde::Deserialize)]
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struct TokenClaims {}
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let mut my_jwk = jwk::JsonWebKey::new(jwk::Key::generate_p256());
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my_jwk.set_algorithm(jwk::Algorithm::ES256);
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let encoding_key = jwt::EncodingKey::from_ec_der(&my_jwk.key.to_der().unwrap());
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let token = jwt::encode(
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&jwt::Header::new(my_jwk.algorithm.unwrap().into()),
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&TokenClaims {},
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&encoding_key,
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).unwrap();
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let public_pem = my_jwk.key.to_public().unwrap().to_pem().unwrap();
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let decoding_key = jwt::DecodingKey::from_ec_pem(public_pem.as_bytes()).unwrap();
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let mut validation = jwt::Validation::new(my_jwk.algorithm.unwrap().into());
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validation.validate_exp = false;
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jwt::decode::<TokenClaims>(&token, &decoding_key, &validation).unwrap();
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```
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## Features
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* `convert` - enables `Key::{to_der, to_pem}`.
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This pulls in the [yasna](https://crates.io/crates/yasna) crate.
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* `generate` - enables `Key::{generate_p256, generate_symmetric}`.
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This pulls in the [p256](https://crates.io/crates/p256) and [rand](https://crates.io/crates/rand) crates.
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* `jsonwebtoken` - enables conversions to types in the [jsonwebtoken](https://crates.io/crates/jsonwebtoken) crate.
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