a. Provide a [Selection: physically; logically] isolated trusted communications path for communications between the user and the trusted components of the system; and b. Permit users to invoke the trusted communications path for communications between the user and the following security functions of the system, including at a minimum, authentication and re-authentication: [Assignment: organization-defined security functions].
| ID | Name | Description | D3FEND | |
| ID | Description | |
| SPARTA ID | Requirement | Rationale/Additional Guidance/Notes |
|---|---|---|
| SPR-541 | The [spacecraft] shall provide a trusted path for sensitive actions (e.g., key management, image activation) with strengthened authentication/integrity checks, narrow interfaces, and explicit telemetry cues (trusted‑path active, preconditions satisfied); operations shall confirm trusted‑path use before proceeding.{SV-AC-1,SV-SP-9}{SA-8(13),SC-11,SC-12} | Narrow interfaces reduce attack vectors. Explicit trusted-path indicators prevent misuse. Strengthened authentication protects critical operations. Procedural confirmation ensures compliance. |
| ID | Name | Description | |
|---|---|---|---|