Breaking down JSON Web Tokens
Breaking down JSON Web Tokens
From pros and cons to building and revoking
About the Book
JSON Web Tokens, or JWTs, are self-contained, portable, stateless tokens that are often issued by identity providers or otherwise used to safely transmit state between different parts of a system.
This book will dive deep into various aspects of JWTs, from creation to revocation. You'll also learn about all the pieces of a JWT and how you can validate them, should you be building an API or microservice that is presented with one.
About the Author
Table of Contents
- What are JWTs
-
Building a Secure Signed JWT
- Definitions
- Out of scope
- Security considerations
- Creating tokens
- Holding tokens
- Consuming a JWT
- In conclusion
-
Pros and Cons of JWTs
- JWTs expire at specific intervals
- JWTs are signed
- JWTs aren’t easily revocable
- JWTs have exploits
- Sessions as an alternative
-
Revoking JWTs & JWT Expiration
- Reduce the duration of the JWT
- Rotate keys
- Build a deny list
- Conclusion
-
Anatomy of a JWT
- The header
- The body
- Signature
- Limits
- Conclusion
- Conclusion
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