System Security

Many applications, require secure centralised management of key configuration variables (e.g. FDA, CFR21 and Networked Systems).

Key configuration parameters include:

	Calibration settings
	Alarm Settings
	User Passwords

These facilities are provided in the ‘Security Database’.

The Security Database allows system critical properties stored in a centralised security database, outside the configuration. By keeping the properties separate from the configuration, with the correct access rights, it is possible to:

	Modify the properties while a system is running without needing to stop or edit the main system.
	Share values between multiple installations, either on a single computer or multiple computers connected to a network
	Edit the properties outside the software environment

The Security Database creates three tables of secured parameters:

	Tags – contains values for Name, Scale, Offset and Filter
	Alarms – contains values for Name, Setpoint, Type and Delay Timers
	Users – contains values for Name , UserName, Password, Groups, CanChange, MustChange, Changed, Expiry and Timeout

When objects are included in a Security Database, these secure parameters are no longer available for editing from the individual objects’ properties page. This is because they take on the values
from the central security database at runtime.

The Security database can be encrypted and password protected as required.

A secure stand-alone application, ‘Security Database Editor’, is supplied with the software to support editing of the Security Databases created:

More on Security

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