Jwks RSA
A Java library for retrieving JSON Web Keys from a JWKS endpoint to verify JWT signatures.
What is Jwks RSA?
jwks-rsa-java is a Java library that fetches JSON Web Key Sets (JWKS) from a remote endpoint, typically used to obtain public keys for verifying JWT signatures. It solves the problem of securely retrieving the correct cryptographic key based on a token's key identifier (kid) in authentication flows. The library is commonly integrated with services like Auth0 to validate tokens in Java applications.
Java developers building applications that require JWT-based authentication, especially those integrating with OAuth 2.0 or OpenID Connect providers like Auth0.
Developers choose jwks-rsa-java for its simplicity, standards compliance, and built-in features like caching and rate limiting, which reduce overhead in token verification. It is a focused, lightweight solution maintained by Auth0, ensuring reliability for production authentication systems.
Overview
jwks-rsa-java is a lightweight Java library that fetches and parses JSON Web Key Sets (JWKS) from a remote endpoint. It is essential for applications that need to verify JSON Web Token (JWT) signatures, such as those implementing authentication with providers like Auth0. The library simplifies the process of obtaining the correct public key based on a token's key identifier (kid).
Key Features
- JWKS Endpoint Integration — Connects to a standard
/.well-known/jwks.jsonendpoint to fetch the key set. - Key Retrieval by ID — Provides a
JwkProviderto get a specific JSON Web Key using itskidfrom a JWT header. - Caching Support — Configurable caching to store JWKs and reduce network calls, improving performance.
- Rate Limiting — Built-in rate limiting to control the frequency of requests to the JWKS endpoint.
- Lightweight and Focused — Minimal dependencies, focused solely on JWKS retrieval for JWT verification workflows.
Philosophy
The library is designed to be a simple, reliable, and efficient component for JWT signature verification, adhering to RFC standards and promoting secure key management practices.
Related Projects
Found a gem we're missing?
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
