Encryption type for password protected Office 97-2003 files

Information

This policy setting enables you to specify an encryption type for password-protected Office 97-2003 files.

If you enable this policy setting, you can specify the type of encryption that Office applications will use to encrypt password-protected files in the older Office 97-2003 file formats. The chosen encryption type must have a corresponding cryptographic service provider (CSP) installed on the computer that encrypts the file. See the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Defaults\Provider\ registry key for a list of CSPs installed on the local computer. Specify the encryption type to use by entering it in the provided text box in the following form:
<Encryption Provider>,<Encryption Algorithm>,<Encryption Key Length>.
For example, Microsoft Enhanced Cryptographic Provider v1.0,RC4,128
If you do not configure this policy setting, Excel, PowerPoint, and Word use Office 97/2000 Compatible encryption, a proprietary encryption method, to encrypt password-protected Office 97-2003 files.

Solution

Policy Path: Microsoft Office 2016\Security Settings
Policy Setting Name: Encryption type for password protected Office 97-2003 files

See Also

https://techcommunity.microsoft.com/t5/microsoft-security-baselines/security-baseline-for-microsoft-365-apps-for-enterprise-v2112/ba-p/3038172

Item Details

Category: SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|SC-13

Plugin: Windows

Control ID: 73d76550dc6c358ef90b12ad348215e476900225d4c58daafc217c719411b36b