| name | SA-9(6)_organization-controlled-cryptographic-keys |
| description | Maintain exclusive control of cryptographic keys for encrypted material stored or transmitted through an external system. |
| category | configuration |
| version | 5.2.0 |
| author | cyberstrike-official |
| tags | ["nist","sp800-53","rev5","sa-9-6","sa","enhancement"] |
| tech_stack | ["any"] |
| cwe_ids | ["CWE-16"] |
| chains_with | ["SC-12","SC-13","SI-4"] |
| prerequisites | ["SA-9"] |
| severity_boost | {"SC-12":"Chain with SC-12 for comprehensive security coverage","SC-13":"Chain with SC-13 for comprehensive security coverage","SI-4":"Chain with SI-4 for comprehensive security coverage"} |
SA-9(6) Organization-controlled Cryptographic Keys
Enhancement of: SA-9
High-Level Description
Family: System and Services Acquisition (SA)
Framework: NIST SP 800-53 Rev 5
Maintaining exclusive control of cryptographic keys in an external system prevents decryption of organizational data by external system staff. Organizational control of cryptographic keys can be implemented by encrypting and decrypting data inside the organization as data is sent to and received from the external system or by employing a component that permits encryption and decryption functions to be local to the external system but allows exclusive organizational access to the encryption keys.
What to Check
How to Test
Step 1: Review Documentation
Examine the System Security Plan (SSP) and related artifacts for SA-9(6) 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 |
|---|
| Manual Review | Documentation and interview-based | N/A |
Remediation Guide
Control Statement
Maintain exclusive control of cryptographic keys for encrypted material stored or transmitted through an external system.
Implementation Guidance
Maintaining exclusive control of cryptographic keys in an external system prevents decryption of organizational data by external system staff. Organizational control of cryptographic keys can be implemented by encrypting and decrypting data inside the organization as data is sent to and received from the external system or by employing a component that permits encryption and decryption functions to be local to the external system but allows exclusive organizational access to the encryption keys.
