Class

• <DRM Security Constraints>

Superclass

• <DRM SEDRIS Abstract Base>

Subclass

• None.

Definition

An instance of this DRM class specifies the security classification and any access and/or usage constraints for its containing DRM object, provided in a form compatible with ISO 19115.

The use_limitation_count field specifies the number of use limitations specified in use_limitation.

If non-empty, each entry of the use_limitation field specifies a limitation affecting the fitness for use of the resource being described by the <DRM Security Constraints> instance.

The classification field identifies the handling restrictions on the resource being described by the <DRM Security Constraints> instance.

The user_note field provides an explanation of the application of the legal constraints or other restrictions and legal prerequisites for obtaining and using the resource being described by the <DRM Security Constraints> instance.

The classification_system field identifies the classification system.

The handling_description field provides any additional information about the restrictions on handling the resource being described by the <DRM Security Constraints> instance.

Class diagram

Figure 6.291 — DRM_Security_Constraints

Constraints

• Mandatory metadata
• Publishable object

Example(s)

• Given a <DRM Transmittal Root> instance that has restricted access (no access by non-U.S. citizens) and is for official use only, the fields of the <DRM Security Constraints> instance’s information might be set to

  use_limitation_count	0
  use_limitation	{empty}
  classification	SECRET
  user_note	“No access by non-U.S. citizens”
  classification_system	“United States Department of Defense”
  handling_description	“Downgrade on 31 Dec 2004”