Policy

Configure invalid hashing algorithm

Microsoft Office 5532.1000

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Policy overview

Key metadata and intent for this policy.

ClassUser
CategoryMicrosoft Office 2016 > Security Settings > Digital Signatures
Supported onWindows7

This policy setting allows you to configure whether Office displays a digital signature as invalid when it contains specific hash algorithms. If you enable this policy setting, you can specify the weakest hash algorithm that Office treats as invalid. If you enable this policy setting, you can specify any of the following algorithms: - MD5 - SHA1 - SHA256 - SHA384 If you don’t configure this policy setting, Office won’t treat digital signatures as invalid because of the hashing algorithm. For example, if you set MD5 as the invalid hashing algorithm Office treats MD5 signatures as invalid.

Internal name
L_SelectDigitalSignatureInvalidHashingAlgorithm
Policy ID
313df3e335a2
Elements
1

Registry values

How enabled and disabled states update the registry.

No explicit registry values are set for enabled or disabled states.

Policy elements

Inputs and configuration options exposed by this policy.

ElementTypeRegistry mappingConstraints & behavior
L_SelectDigitalSignatureHashingAlgorithmDropID
ID L_SelectDigitalSignatureHashingAlgorithmDropID
enum
HKCU\software\policies\microsoft\office\16.0\common\signatures\invalidhashalg
Type REG_SZ
Options: MD5 (md5), SHA1 (sha1), SHA256 (sha256), SHA384 (sha384)

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