---
description: List of all abbreviations used in the book
---

# Abbreviations

| Abrv. | Abbreviation                            |
| ----- | --------------------------------------- |
| API   | Application Programming Interface       |
| HMAC  |  Hash-based Message Authentication Code |
| JSON  | JavaScript Object Notation              |
| JKU   | JWK Set URL                             |
| JWK   | JSON Web Key                            |
| JWKS  | JSON Web Key Store                      |
| JWT   | JSON Web Token                          |
| PEM   | Privacy-Enhanced Mail                   |
| RSA   | Rivest–Shamir–Adleman                   |
| SSL   | Secure Sockets Layer                    |

