Signal Parameter Identification
LOW MODERATE HIGHRequirements NIST SOURCE
Implement cryptographic mechanisms to prevent the identification of [wireless transmitters] by using the transmitter signal parameters.
Discussion (NIST Supplemental Guidance)
The implementation of cryptographic mechanisms to prevent the identification of wireless transmitters protects against the unique identification of wireless transmitters for the purposes of intelligence exploitation by ensuring that anti-fingerprinting alterations to signal parameters are not predictable by unauthorized individuals. It also provides anonymity when required. Radio fingerprinting techniques identify the unique signal parameters of transmitters to fingerprint such transmitters for purposes of tracking and mission or user identification.
Implementation Guidance
Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.
No engineering interpretation has been authored for SC-40(4) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.
Assessment
Assessment Objectives
- wireless transmitters for which cryptographic mechanisms are to be implemented are defined;
- cryptographic mechanisms are implemented to prevent the identification of <SC-40(04)_ODP wireless transmitters> by using the transmitter signal parameters.
Examine
[SELECT FROM: System and communications protection policy; access control policy and procedures; procedures addressing system design documentation; wireless network diagrams; system configuration settings and associated documentation; system architecture; system communications hardware and software; system audit records; system security plan; other relevant documents or records].
Interview
[SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; system developer; organizational personnel installing, configuring, and/or maintaining the system; organizational personnel authorizing, installing, configuring, and/or maintaining internal and external wireless links].
Test
[SELECT FROM: Cryptographic mechanisms preventing the identification of wireless transmitters].
STIGs & CCIs
No STIG checks or CCI mappings are currently loaded for SC-40(4). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.
Learn more about STIG/CCI integration →Evidence
Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.
Policy
- System and communications protection policy
- access control policy and procedures
- system security plan
Configuration
- procedures addressing system design documentation
- system configuration settings and associated documentation
- system architecture
Testing
- Cryptographic mechanisms preventing the identification of wireless transmitters
Other Records
- wireless network diagrams
- system communications hardware and software
- system audit records
- other relevant documents or records