Security Manager

This subsystem is responsible for implementing the security model that controls access to a distributed set of resources that may have their own security model. It provides an entry point for authenticating the user, controlling the privilege levels of other subsystems, and maintaining separation between sessions based on privilege level.

A special case that the security model must deal with is merging sessions between two different users.

Activities include:

  • obtaining credentials
  • validating credentials
  • providing authorization tokens
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