= Security Component SPIs

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The core framework defines two SPIs that define the security architecture:

* the xref:refguide:core:index/security/authentication/Authenticator.adoc[Authenticator] SPI allows for different authentication implementations to be used

* the xref:refguide:core:index/security/authorization/Authorizor.adoc[Authorizor] SPI allows for different authorization mechanisms to be used

By "authentication" we mean logging into the application using some credentials, typically a username and password.
Authentication also means looking up the set of roles to which a user belongs.

And by "authorization" we mean permissions: granting roles to have access to features (domain object members) of the app, and granting users to those roles.


