golang-jwt/jwt
Jwt
This project is a JSON Web Token implementation library and toolkit for encoding, signing, and validating tokens. It provides the necessary functions to manage token claims and payloads for user authentication and authorization.
The library supports both symmetric and asymmetric cryptography, allowing for the use of shared secrets or public-private key pairs. It enables the creation of signed tokens and the verification of their authenticity and integrity to prevent data tampering.
The toolkit covers a broad range of identity and access control capabilities, including the embedding of custom claims and the implementation of time-based validity checking. It is designed to support stateless authentication and secure data exchange between services.
Features
- Signed JWT Generation - Produces compact signed JSON Web Tokens using secret or private keys.
- JSON Web Tokens - Provides a comprehensive toolkit for encoding, signing, and validating JSON Web Tokens.
- Stateless Session Authentication - Implements authentication using signed tokens to avoid server-side session storage.
- Access Tokens - Generates digital signatures to ensure the integrity and origin of token payloads.
- Token Authentication - Decodes tokens and validates signatures to ensure payload integrity and authenticity.
- Asymmetric Signing - Provides a cryptographic implementation for signing and verifying tokens with public-private key pairs.
- Cryptographic Signing Methods - Implements both symmetric HMAC and asymmetric public-private key pairs for token authenticity.
- Authentication Claims - Encodes user identity, roles, and custom metadata into tokens for authentication and authorization.
- Digital Signature Validators - Validates digital signatures using secret or public keys to confirm the token source.
- JWT Cryptographic Algorithms - Implements various standard cryptographic algorithms for signing and verifying token authenticity.
- Token Validation - Decodes tokens and verifies signatures and validity constraints like issuer and audience.
- Token Authentication - Creates and signs tokens to provide stateless authentication credentials.
- Token Validation Services - Provides utilities to verify the integrity and authenticity of tokens via digital signature checks.
- API Access Control - Provides the mechanism to secure API endpoints by validating signed tokens containing user permissions.
- Signing Interfaces - Provides a common interface to support multiple cryptographic algorithms for token signing and verification.
- Clock-Abstracted Time Validation - Validates token expiration and issued-at timestamps against the system clock with optional leeway.
- External Key Integration - Decouples key retrieval from signing logic to support external secret management and public key loading.
- Claim Mapping - Maps token claims to Go structs via JSON marshaling for identity and authorization data.
- External Identity Provider Integration - Provides helpers for issuing and verifying identity tokens based on JWT specifications.
- Secure Token Exchange - Transmits verifiable claims between services using digital signatures to prevent tampering.
- Security & Privacy - Full-featured library for JWT generation and verification.
