Encryption type for password protected Office 97-2003 files

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:

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.

Supported on: At least Windows 7

Encryption type:

Registry Pathsoftware\policies\microsoft\office\16.0\common\security
Value Namedefaultencryption12
Value TypeREG_SZ
Default Value


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