Which component is primarily responsible for user authentication in Spring Security?
- Authentication Provider
- Controller
- Filter Chain
- UserDetailsService
In Spring Security, user authentication is primarily handled by the UserDetailsService interface. This interface is responsible for loading user-specific data, such as username, password, and authorities, which is essential for authentication and authorization processes. The Authentication Provider is responsible for authenticating users based on this user-specific data. The Filter Chain and Controller are not primarily responsible for user authentication.
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