Type Enforcement

Type Enforcement

Unter Type Enforcement versteht man eine Form der Implementierung eines MAC-Systems. Hierbei werden bei der Definition der Zugriffsregeln nicht die zu schützenden Ressourcen selbst, sondern ein Typ, der diesen zugewiesen wurde, angegeben.

Beispiel

Unter SELinux kann einer Gruppe von Dateien, die geschützt werden soll, ein Typ zugewiesen werden. So kann man zum Beispiel für alle Dateien, die im Mail-Spool befinden, den Typ var_mqueue_t zuweisen.

Möchte man nun einem Mailserver erlauben, auf diese Dateien zu zugreifen, so muss man bei den Zugriffsregeln anstelle von Dateinamen nur den Typ var_mqueue_t angeben.

Implementierungen

SELinux ist eine Erweiterung des Betriebssystems Linux, welches ein Type-Enforcement-System implementiert.


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