Policy

Configure legacy 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 legacy when it contains specific hash algorithms. If you enable this policy setting, you can specify the weakest hash algorithm that Office treats as legacy. You can specify any of the following algorithms: - MD5 - SHA1 - SHA256 - SHA384 If you don’t configure this policy setting, Office treats digital signatures containing SHA1 or better as valid. For example, if you set SHA256 as the legacy hashing algorithm, Office treats SHA384 signatures as valid.

Internal name
L_SelectDigitalSignatureLegacyHashingAlgorithm
Policy ID
47b4ebc062b7
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\legacyhashalg
Type REG_SZ
Options: MD5 (md5), SHA1 (sha1), SHA256 (sha256), SHA384 (sha384)

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