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What is a JSON Web Token (JWT)?
A JSON Web Token (JWT) is like a digital passport that securely carries information, allowing users to prove their identity and access protected resources.
When should we use JSON Web Tokens?
We should use JSON Web Tokens (JWTs) when we want a secure and efficient way to authenticate and authorize users, and share information between different systems or services.
Claims are expected in which structural component of a JWT?
Claims are expected to be found in the payload component of a JSON Web Token (JWT), which contains information about the user or additional data associated with the token.
If I get a JWT and I can decode the payload, how can we call that secure?
Even if the payload of a JWT can be decoded, the security lies in the digital signature. Verifying the signature ensures the integrity and authenticity of the token, making it secure.
If sending a JWT, what must sender and receiver both know? Hint, it’s appended in the signature.
When sending a JWT, both the sender and receiver must know a secret key that is appended in the signature. This key is used to verify the integrity of the token.
Explain how concatenated content and secret can be sent and received securely to a non-technical recruiter.
To securely send and receive concatenated content and a secret, it’s like sending a locked box. The secret is the key to unlock the box and ensure only the intended recipient can access the content.
Why use JWT?
JWT is used to safely share information between two parties. The digitally signed data is checked and trusted. It’s also small and efficient.
JWT is Compact and self-contained. Describe how this is useful to a non-technical friend.
JWT being compact and self-contained means it’s like a small, all-in-one package. It’s easy to send, store, and use without needing extra things, making it convenient and efficient.
What are the three components (the structure) of a JWT signature?
The structure of a JWT signature consists of three components: header, payload, and signature. They work together to securely encode and verify the information contained in the token.
What are your learning goals after reading and reviewing the class README?
My learning goals are to gain a clear understanding of how JSON Web Tokens (JWTs) work, their purpose, and how they can be used for authentication and authorization in web applications.