José is a C-language implementation of the Javascript Object Signing and Encryption standards. Specifically, José aims towards implementing the following standards:

RFC 7515 - JSON Web Signature (JWS) RFC 7516 - JSON Web Encryption (JWE) RFC 7517 - JSON Web Key (JWK) RFC 7518 - JSON Web Algorithms (JWA) RFC 7519 - JSON Web Token (JWT) RFC 7520 - Examples of ... JOSE RFC 7638 - JSON Web Key (JWK) Thumbprint