What is the purpose of Trusted Distribution?

A.
To ensure that messages sent from a central office to remote locations are free from tampering.

B.
To prevent the sniffing of data as it travels through an untrusted network enroute to a trusted network.

C.
To ensure that the Trusted Computing Base is not tampered with during shipment or installation.

D.
To ensure that messages received at the Trusted Computing Base are not old messages being resent as
part of a replay attack.

Explanation:
The purpose of trusted distribution is to ensure that the Trusted Computing Base is not tampered with during
shipment or installation.
Hostile attacks may occur on computer systems when they are in use, but it is also possible for computer
systems to be attacked even before they are installed at a customer site.
Trusted distribution is one link in a chain of assurances provided by trusted systems. It is helpful to take a look
at all of the other activities that take place to ensure that the system in operation is the one that the vendor and
customer agree upon.
The following is a summary of the assurances that are needed to ensure that the product delivered to a
customer site is operating under a correct implementation of the system’s security policy:
Assurance that the product evaluated is the one the manufacturer built
Assurance that the product built is the one that was sent
Assurance that the product sent is the one the customer site received.
Incorrect Answers:
A: It is not the purpose of trusted distribution to ensure that messages sent from a central office to remote
locations are free from tampering.
B: It is not the purpose of trusted distribution to prevent the sniffing of data as it travels through an untrusted
network enroute to a trusted network.
D: It is not the purpose of trusted distribution to ensure that messages received at the Trusted Computing Base
are not old messages being resent as part of a replay attack.

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