Set CNG cipher algorithm

UserNeeds changes for IntuneL_SetCNGCipherAlgorithm

Supported on SUPPORTED_Windows7 (defined in the Windows templates)

5568.1000

What it does

This policy setting allows you to configure the CNG cipher algorithm that is used. If you enable this policy setting, then the cipher provided will be used if it is a supported algorithm. If you disable or do not configure this policy setting, AES will be used.

What it writes

Hive: HKEY_CURRENT_USER
Registry key: software\policies\microsoft\office\16.0\excel\security\crypto

Why it needs changes for Intune

Policy references a Windows supportedOn definition.
ADMX-INTUNE-WINDOWS-SUPPORTEDON-REFERENCE

Options

Option	Type	Registry value	Allowed values
CNG cipher algorithmRequired	Text	`cipheralgorithm`	Up to 255 characters

Configure and deploy

Choose a state and the option values; the output below is generated from the template for exactly that.

Fix the highlighted options to generate output.

History 1 retained release

5568.100010 Aug 2026
- Already present in the first release ChangeIntel keeps.

Template

Internal name: L_SetCNGCipherAlgorithm
Namespace: excel16.Office.Microsoft.Policies.Windows
Template file: excel16.admx
Release: Microsoft 365 Apps 5568.1000 · file set 8be05d876aae137d…

Definition, editor controls and support

Definition

<policy class="User" displayName="$(string.L_SetCNGCipherAlgorithm)" explainText="$(string.L_SetCNGCipherAlgorithmExplain)" key="software\policies\microsoft\office\16.0\excel\security\crypto" name="L_SetCNGCipherAlgorithm" presentation="$(presentation.L_SetCNGCipherAlgorithm)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_Cryptography" />
      <supportedOn ref="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
      <elements>
        <text id="L_SetCNGCipherAlgorithmID" required="true" valueName="cipheralgorithm" />
      </elements>
    </policy>

Editor controls

<presentation id="L_SetCNGCipherAlgorithm" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <textBox refId="L_SetCNGCipherAlgorithmID">
          <label>CNG cipher algorithm:</label>
        </textBox>
      </presentation>

Supported platforms and category

excel16.Office.Microsoft.Policies.Windows:category:L_Cryptography
<category displayName="$(string.L_Cryptography)" name="L_Cryptography" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_Security" />
    </category>
excel16.Office.Microsoft.Policies.Windows:category:L_ExcelOptions
<category displayName="$(string.L_ExcelOptions)" name="L_ExcelOptions" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeExcel" />
    </category>
excel16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeExcel
<category displayName="$(string.L_MicrosoftOfficeExcel)" name="L_MicrosoftOfficeExcel" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
excel16.Office.Microsoft.Policies.Windows:category:L_Security
<category displayName="$(string.L_Security)" name="L_Security" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_ExcelOptions" />
    </category>
excel16.Office.Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Windows:SUPPORTED_Windows7
<unresolved reference="Microsoft.Policies.Windows:SUPPORTED_Windows7" />
excel16.Office.Microsoft.Policies.Windows:category:L_Cryptography
<category displayName="$(string.L_Cryptography)" name="L_Cryptography" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_Security" />
    </category>
<strings><string id="excel16.Office.Microsoft.Policies.Windows:L_Cryptography">Cryptography</string></strings>
excel16.Office.Microsoft.Policies.Windows:category:L_ExcelOptions
<category displayName="$(string.L_ExcelOptions)" name="L_ExcelOptions" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeExcel" />
    </category>
<strings><string id="excel16.Office.Microsoft.Policies.Windows:L_ExcelOptions">Excel Options</string></strings>
excel16.Office.Microsoft.Policies.Windows:category:L_MicrosoftOfficeExcel
<category displayName="$(string.L_MicrosoftOfficeExcel)" name="L_MicrosoftOfficeExcel" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="excel16.Office.Microsoft.Policies.Windows:L_MicrosoftOfficeExcel">Microsoft Excel 2016</string></strings>
excel16.Office.Microsoft.Policies.Windows:category:L_Security
<category displayName="$(string.L_Security)" name="L_Security" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="excel16.Office.Microsoft.Policies.Windows:L_ExcelOptions" />
    </category>
<strings><string id="excel16.Office.Microsoft.Policies.Windows:L_Security">Security</string></strings>