What is the primary role of the UserDetailsService in Spring Security?

  • Authenticating users based on their roles.
  • Loading user details from a data store.
  • Encrypting user passwords.
  • Handling access control policies.
The primary role of the UserDetailsService in Spring Security is to load user details (including username, password, and roles) from a data store, typically a database. It's a fundamental component used for authentication and authorization, as it provides the necessary user information for the security framework to make access control decisions. The other options describe tasks related to authentication and authorization but are not the primary role of UserDetailsService.
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