| name | SC-40(4)_signal-parameter-identification |
| description | Implement cryptographic mechanisms to prevent the identification of [organization-defined] by using the transmitter signal parameters. |
| category | configuration |
| version | 5.2.0 |
| author | cyberstrike-official |
| tags | ["nist","sp800-53","rev5","sc-40-4","sc","enhancement"] |
| tech_stack | ["aws","azure","gcp","linux","windows","network"] |
| cwe_ids | ["CWE-311"] |
| chains_with | ["SC-12","SC-13"] |
| prerequisites | ["SC-40"] |
| severity_boost | {"SC-12":"Chain with SC-12 for comprehensive security coverage","SC-13":"Chain with SC-13 for comprehensive security coverage"} |
SC-40(4) Signal Parameter Identification
Enhancement of: SC-40
High-Level Description
Family: System and Communications Protection (SC)
Framework: NIST SP 800-53 Rev 5
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.
What to Check
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for SC-40(4) implementation details. Verify the organization has documented how this control is satisfied.
Step 2: Validate Implementation
# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly
# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null
Step 3: Test Operating Effectiveness
Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.
Tools
| Tool | Purpose | Usage |
|---|
| cloud-audit-mcp | Check encryption and network controls | cloud_audit_encryption |
| nmap | Network scanning | nmap -sV --script ssl-enum-ciphers |
Remediation Guide
Control Statement
Implement cryptographic mechanisms to prevent the identification of [organization-defined] by using the transmitter signal parameters.
Implementation Guidance
