Additional Notes
Why does the signature in a JWT token matter in practice?
Track: Java
Topic: Authentication
Focus: Salting and BCrypt
Java: Salting and BCrypt
Answer
It verifies the token's integrity. Frame the concept in practical terms so you can explain it during interview discussion.
In a JWT, the signature ensures that the token hasn't been tampered with. It is created by hashing the token's header and payload with a secret key. When a server receives a JWT, it verifies the signature using the same secret key.
In a JWT, the signature ensures that the token hasn't been tampered with. It is created by hashing the token's header and payload with a secret key. When a server receives a JWT, it verifies the signature using the same secret key.
Topics: Authentication Java Salting and BCrypt