OAuth 2.0 authentication allows limited access using which type of tokens?

OAuth 2.0 authentication allows limited access using which type of tokens?

• A. Long-lived access tokens
• B. Temporary access tokens
• C. Short-lived access tokens
• D. Permanent access tokens

Answer: (C)

OAuth 2.0 authentication facilitates access to resources by using short-lived access tokens. These tokens are designed to be used for a specified period, allowing clients limited access to the user's data or resources without requiring the user's credentials. The temporary nature of these tokens enhances security because even if an access token is compromised, its limited lifespan reduces the window of opportunity for misuse. In practice, after the short-lived access token expires, the client must either obtain a new token by re-authenticating the user or by using a refresh token, if available. This process helps ensure that the access provided is current and valid, maintaining a level of security and user control over their data. Tokens that are long-lived or permanent are generally not favored within the OAuth 2.0 framework due to the increased security risk associated with tokens that never expire. Therefore, the concept of using short-lived access tokens is integral to the OAuth 2.0 protocol, promoting both security and efficiency in accessing protected resources.

OAuth 2.0 authentication facilitates access to resources by using short-lived access tokens. These tokens are designed to be used for a specified period, allowing clients limited access to the user's data or resources without requiring the user's credentials. The temporary nature of these tokens enhances security because even if an access token is compromised, its limited lifespan reduces the window of opportunity for misuse.

In practice, after the short-lived access token expires, the client must either obtain a new token by re-authenticating the user or by using a refresh token, if available. This process helps ensure that the access provided is current and valid, maintaining a level of security and user control over their data.

Tokens that are long-lived or permanent are generally not favored within the OAuth 2.0 framework due to the increased security risk associated with tokens that never expire. Therefore, the concept of using short-lived access tokens is integral to the OAuth 2.0 protocol, promoting both security and efficiency in accessing protected resources.