← Back to Microsoft Windows 11 Security Technical Implementation Guide

V-253466

CAT II (Medium)

The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.

Rule ID

SV-253466r1210303_rule

STIG

Microsoft Windows 11 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-002450

Discussion

This setting ensures the system uses algorithms that are FIPS compliant for encryption, hashing, and signing. FIPS-compliant algorithms meet specific standards established by the U.S. Government and must be the algorithms used for all OS encryption functions. Note: A different registry location is needed when systems are managed by Intune versus GPO.

Check Content

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\  (For GPO-managed systems)
Or
Registry Path: \SOFTWARE\Microsoft\PolicyManager\current\device\Cryptography!AllowFipsAlgorithmPolicy_ProviderSet  (For Intune-managed systems)

Value Name: Enabled

Value Type: REG_DWORD
Value: 1
 
Warning: Clients with this setting enabled will not be able to communicate via digitally encrypted or signed protocols with servers that do not support these algorithms.

Fix Text

For GPO-managed systems:

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing" to "Enabled".

For Intune-managed systems:

Set the Intune System Cryptography Policy to use FIPS-compliant algorithms for encryption, hashing, and signing.