org.springframework.security.authentication
Interfaces 
AuthenticationDetailsSource
AuthenticationEventPublisher
AuthenticationManager
AuthenticationProvider
AuthenticationTrustResolver
Classes 
AbstractAuthenticationManager
AbstractAuthenticationToken
AccountStatusUserDetailsChecker
AnonymousAuthenticationProvider
AnonymousAuthenticationToken
AuthenticationDetails
AuthenticationDetailsSourceImpl
AuthenticationTrustResolverImpl
DefaultAuthenticationEventPublisher
ProviderManager
RememberMeAuthenticationProvider
RememberMeAuthenticationToken
TestingAuthenticationProvider
TestingAuthenticationToken
UsernamePasswordAuthenticationToken
Exceptions 
AccountExpiredException
AccountStatusException
AuthenticationCredentialsNotFoundException
AuthenticationServiceException
BadCredentialsException
CredentialsExpiredException
DisabledException
InsufficientAuthenticationException
LockedException
ProviderNotFoundException