Performance Considerations for JWT

Welcome! In this lesson, we'll dive into optimizing JWT validation. While JWTs are great for stateless authentication, their validation isn't free.

For applications with high traffic, repeated validation of every incoming JWT can become a significant performance bottleneck. We need to make it fast!

Before your application trusts a JWT, it goes through several crucial steps:

• Parsing: Decoding the base64-encoded header and payload.
• Signature Verification: Cryptographically checking if the token was signed by the expected issuer.
• Claims Validation: Checking standard claims like expiration (exp), not-before (nbf), issuer (iss), and audience (aud).