In the context of authentication, what is a common use of JWTs?

In the context of authentication, what is a common use of JWTs?

• A. Creating long-lived access sessions
• B. Sending signed information securely
• C. Generating API keys dynamically
• D. Validating user identities continuously

Answer: (B)

In the context of authentication, JWTs (JSON Web Tokens) are commonly used for sending signed information securely. The primary purpose of a JWT is to allow the secure transmission of information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. JWTs can be signed using a secret (with HMAC algorithm) or a public/private key pair using RSA or ECDSA. The integrity and authenticity of the JWT are maintained through this signing process, ensuring that the information contained within cannot be altered without invalidating the signature. When a server creates a JWT and sends it to a client, the client can then use this token for authenticated communication with the server, facilitating secure information exchange. This makes the method particularly suited for scenarios where information needs to be securely shared, such as user authentication and authorization processes in web applications. While other options mention functionalities related to user sessions, API keys, and continuous validation of identities, these are not the primary features or functions of JWTs. Tokens are generally used in a stateless manner, meaning that the server does not need to maintain a session state between requests, and therefore they do not inherently provide long-lived access sessions, nor are they typically generated to validate identities continuously or

In the context of authentication, JWTs (JSON Web Tokens) are commonly used for sending signed information securely. The primary purpose of a JWT is to allow the secure transmission of information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. JWTs can be signed using a secret (with HMAC algorithm) or a public/private key pair using RSA or ECDSA.

The integrity and authenticity of the JWT are maintained through this signing process, ensuring that the information contained within cannot be altered without invalidating the signature. When a server creates a JWT and sends it to a client, the client can then use this token for authenticated communication with the server, facilitating secure information exchange. This makes the method particularly suited for scenarios where information needs to be securely shared, such as user authentication and authorization processes in web applications.

While other options mention functionalities related to user sessions, API keys, and continuous validation of identities, these are not the primary features or functions of JWTs. Tokens are generally used in a stateless manner, meaning that the server does not need to maintain a session state between requests, and therefore they do not inherently provide long-lived access sessions, nor are they typically generated to validate identities continuously or