JWK
JSON Web Key — a JSON data structure representing a cryptographic key. Used in JWKS documents for RS256/ES256 verification.
Quick Answer
See our full JWT Glossary for related terms, or use the JWT Decoder to inspect tokens in practice.
What is JWK?
JSON Web Key — a JSON data structure representing a cryptographic key. Used in JWKS documents for RS256/ES256 verification.
See It in Practice
Paste any JWT into our JWT Decoder to see related claims in action. Use the JWT Debugger for detailed analysis.
Related
Browse the full JWT Glossary or explore JWT Basics.
JWK in JWT Authentication
Understanding JWK helps you read RFC 7519, debug tokens, and design secure authentication. JWTs combine header, payload claims, and a cryptographic signature.
Browse related resources: JWT Decoder, JWT Validator, JWT Basics, JWT Authentication, JWT Errors, Algorithms, Glossary, and Learning Path.