User Management API

com.sap.security.api	Provides basic User Management functionality.
com.sap.security.api.acl	Provides basic Access Control List functionality.
com.sap.security.api.logon	Provides basic Logon functionality.
com.sap.security.api.permissions
com.sap.security.api.ticket	Provides basic Ticket functionality.
com.sap.security.api.umap	Provides basic user mapping functionality.
com.sap.security.api.umap.system

Destination Service API

com.sap.security.core.server.destinations.api

SSL Client Library

com.sap.security.core.server.https

Virus Scan API

com.sap.security.core.server.vsi.api	Provides the J2EE interface 'Virus Scan Interface' (NW-VSI) and the J2EE serivce 'Virus Scan Provider' for using external virus scan products due to perform a virus scan within own applications.
com.sap.security.core.server.vsi.api.exception	Provides the exception classes for the Virus Scan Interface (NW-VSI) and the error messages.

Authentication API

com.sap.engine.interfaces.security.auth
com.sap.engine.lib.security
com.sap.engine.lib.security.http