This is a default repository type. When the Teamwork Server is first installed and started, it is configured to use the Native repository. This is the only type of repository available in versions prior to 12.5 of Teamwork Server. When the Teamwork Server is configured to use the Native repository, a directory is designated for project storage. The Server then uses its internal proprietary code to implement a versioned repository for a collection of projects. Additionally, a simple user authentication/authorization scheme is implemented in the repository to store a simple list of users and their passwords (securely encrypted using one-way encryption) in a user file. When MagicDraw users log in to the server, the Native repository uses this user file to verify these users and their passwords. Users' rights to access different projects are also described using this file.