SA-08(18) Trusted Communications Channels
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Title
Trusted Communications Channels
Control
Implement the security design principle of trusted communications channels in [Assignment: systems or system components].
Discussion
The principle of trusted communication channels states that when composing a system where there is a potential threat to communications between components (i.e., the interconnections between components), each communication channel is trustworthy to a level commensurate with the security dependencies it supports (i.e., how much it is trusted by other components to perform its security functions). Trusted communication channels are achieved by a combination of restricting access to the communication channel (to ensure an acceptable match in the trustworthiness of the endpoints involved in the communication) and employing end-to-end protections for the data transmitted over the communication channel (to protect against interception and modification and to further increase the assurance of proper end-to-end communication).
Parameters
sa-08.18_odp: systems or system components
Related controls
sc-12, sc-13, sc-8
Assessment objective
SA-08(18) [Assignment: systems or system components] implement the security design principle of trusted communications channels.
STIG rules that implement this control 0
No followed STIG rule cites a CCI indexed to this control (CCI list 2026-07-14).