SV-253466r1210303: The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing. | Microsoft Windows 11 STIG SCAP Benchmark

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Assessment Title

Rule Text

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

Description

Discussion Text

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.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-002450

References

DPMS Target Microsoft Windows 11 DISA DPMS Target Microsoft Windows 11 5471

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

# Windows PowerShell
# Reconstructed from oval:mil.disa.stig.windows11:def:253466
# The system must be configured to use FIPS-compliant algorithms for encryption, hashing, and signing.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# FIPS-compliant algorithms are enabled
# registry_object (registry_test)
function test_1 {
  return ((((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy').GetValueKind('Enabled').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy' -Name 'Enabled' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'Enabled') -eq 1)) -or (((@{String='reg_sz';ExpandString='reg_expand_sz';Binary='reg_binary';DWord='reg_dword';MultiString='reg_multi_sz';QWord='reg_qword';None='reg_none'}[(Get-Item -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\current\device\Cryptography').GetValueKind('AllowFipsAlgorithmPolicy_ProviderSet').ToString()]) -eq 'reg_dword') -and (((Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PolicyManager\current\device\Cryptography' -Name 'AllowFipsAlgorithmPolicy_ProviderSet' -ErrorAction SilentlyContinue) | Select-Object -ExpandProperty 'AllowFipsAlgorithmPolicy_ProviderSet') -eq 1)))
}

if (test_1) {
  Write-Output "PASS"
} else {
  Write-Output "FAIL"
}

Assessment Script Powered by AISyntax-verified

A standalone PowerShell script to assess this control automatically. Review before running it in your environment.

Syntax-checked as valid PowerShell. Not executed here — running it for real needs the actual ms_windows_11 target this check assesses.

# OVAL Definition: oval:mil.disa.stig.windows11:def:253466
if ((Test-Path "HKLM:\SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\Enabled" -and (Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\Lsa\FIPSAlgorithmPolicy\Enabled").Enabled -eq 1) -and (Test-Path "HKLM:\SOFTWARE\Microsoft\PolicyManager\current\device\Cryptography\AllowFipsAlgorithmPolicy_ProviderSet" -and (Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\PolicyManager\current\device\Cryptography").AllowFipsAlgorithmPolicy_ProviderSet -eq 1)) { Write-Output "PASS"; Exit 0 } else { Write-Output "FAIL"; Exit 1 }

Remediation

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.