7B Flashcards
What does TEMPEST stand for?
Transient Electromagnetic Pulse Emanation Surveillance Technology
Formerly called Emissions Security or EMSEC, is a program employed to identify vulnerabilities in information systems processing national security information that could lead to compromising emanations and their possible interception. Its objective is to deny access to classified and, in some instances, unclassified information, and contain compromising emanations within an inspectable space.
TEMPEST
TEMPEST vulnerabilities come from ____ emitted signals or compromising emanations.
unintentionally
Every electronic, electro-optical, or electro-mechanical device, whether it was designed as a transmitter, gives off some type of electromagnetic signals, or “____”, known as electromagnetic interference (EMI).
emanations
TEMPEST was designed to identify vulnerabilities by studying incidents of unintentionally emitted signals and searching for ways to correct this significant problem. Some protective measures we can use include ___, ____ and ____.
proper installation, grounding and shielding of equipment
What does PDS stand for?
Protected Distribution System (PDS)
A protected distribution system (PDS), sometimes called ___ or ___ is a wire line or fiber-optics telecommunication system that includes adequate safeguards and/or countermeasures (e.g., acoustical, electromagnetic, and physical) to permit its use for the transmission of unencrypted information.
protective distribution system or a TEMPEST system
There are two categories of PDS:
hardened distribution system and simple distribution system.
The following describes which category of PDS?
____ are afforded significant physical security protection. The telecommunications line is installed in a hardened conduit material, an alarmed carrier, or a continuously viewed carrier.
Hardened Distribution System
___ are afforded a reduced level of physical security protection as compared to a Hardened Distribution System. The data cables should be installed in a carrier. The carrier can be constructed of any material (e.g., wood, plastic, or metal). The joints and access point should be secured and controlled by personnel cleared to the highest level of data handled by the PDS. The carrier is to be inspected in accordance with local policies dependent on the threat assessment.
Simple Distribution System (SDS)
The Red/Black Principle, also known as ___ or ___, represents the meticulous separation and partitioning in cryptographic systems of signals that contain sensitive or classified plain-text information (red signals) from those that carry encrypted information, or cipher-text (black signals).
red/black architecture
red/black engineering
The Red/Black Principle does not apply to cabling systems that
are based on __ __ __, because light waves do not carry and electromagnetic signal that can cause interference. It continues to be relevant for copper-based cabling systems.
fiber optics technology
All TEMPEST standards ____ a strict red/black separation or the installation of shielding agents between all circuits and equipment which transmit classified and non-classified data.
require
Changing even a single ____ can invalidate the TEMPEST tests.
wire
