OAuth 2.0 is an open standard for authorization that enables applications to obtain limited access to user accounts on an HTTP service, such as Facebook, GitHub, and Google. It works by delegating user authentication to the service that hosts the user account, and authorizing third-party applications to access the user account. OAuth 2.0 provides a more streamlined and efficient way for users to grant third-party access to their resources while maintaining a high degree of security.
Compared to OAuth 1.0, OAuth 2.0 is much simpler and easier to implement. It also provides greater flexibility in terms of the types of applications that can be developed and the level of access that can be granted to third-party applications. For example, OAuth 2.0 enables developers to create applications that can be used to access resources on behalf of the user without the need for the user to provide their credentials to the third-party application.
OAuth 2.0 is not without its challenges, however. One of the primary challenges is ensuring that users are aware of the level of access they are granting to third-party applications. Another challenge is ensuring that the data accessed by third-party applications is kept secure.
Overall, OAuth 2.0 is a significant improvement over OAuth 1.0 and provides a more secure and efficient way for users to grant third-party access to their resources.
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