A Rust library for encoding and decoding JSON Web Tokens (JWT) with support for multiple algorithms and flexible validation.
jsonwebtoken is a Rust library for securely encoding and decoding JSON Web Tokens (JWT) and JSON Web Signatures (JWS). It provides a type-safe interface for handling authentication tokens and data exchange, supporting a wide range of cryptographic algorithms and extensive customization of headers, claims, and validation rules.
Rust developers building secure authentication systems, APIs, or services that require token-based authentication and data integrity, such as backend services, microservices, or identity providers.
Developers choose jsonwebtoken for its emphasis on type safety, performance, and flexibility, including support for multiple cryptographic backends (aws_lc_rs or rust_crypto), customizable validation, and adherence to JWT standards without sacrificing control over token handling.
JWT lib in rust
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Supports a wide range including HS256, RS256, PS256, ES256, and EdDSA, covering symmetric and asymmetric cryptography as listed in the README's algorithm section.
Integrates with Serde for deriving Serialize and Deserialize on custom structs, ensuring compile-time safety for claim handling, as shown in the Claims struct examples.
Allows setting expected values for aud, iss, sub, and adjusting leeway for time-based claims via the Validation struct, enabling precise token validation rules.
Enables decoding with RSA components from JWK and offers choice between aws_lc_rs and rust_crypto backends, providing flexibility for different cryptographic needs.
Requires selecting a backend feature or implementing a custom CryptoProvider, which adds setup steps and potential confusion, as noted in the Installation section.
Only supports PKCS8 format for private EC keys, necessitating external conversion from SEC1 using tools like openssl, a limitation explicitly mentioned in the README.
Does not include built-in mechanisms for token refresh, rotation, or revocation, forcing developers to handle lifecycle management manually outside the library.