Configure time stamping hashing algorithm

This policy setting allows you to configure the time stamping hashing algorithm used by Office 2016 applications to validate a message or document.

If you enable this policy setting, you can specify any of the following standard hashing algorithm (SHA) functions:
- SHA1
- SHA256
- SHA384
- SHA512

If you disable or do not configure this policy setting, SHA1 will be used.

Supported on: At least Windows 7




  1. SHA1
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\common\signatures
    Value Nametimestamphashalg
    Value TypeREG_SZ
    Valuesha1
  2. SHA256
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\common\signatures
    Value Nametimestamphashalg
    Value TypeREG_SZ
    Valuesha256
  3. SHA384
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\common\signatures
    Value Nametimestamphashalg
    Value TypeREG_SZ
    Valuesha384
  4. SHA512
    Registry HiveHKEY_CURRENT_USER
    Registry Pathsoftware\policies\microsoft\office\16.0\common\signatures
    Value Nametimestamphashalg
    Value TypeREG_SZ
    Valuesha512


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