Logging a hash value for attached files

This article applies to:

• Trustwave SEG 8.X and above

Question:

• How can I generate and log a hash value for attached files?

Procedure:

In SEG 8.0 and above you can enable MD5 hashing of attached files. The hash values are recorded in the Engine log.

1. On the Array Manager, edit the Registry (10.X: use Advanced Settings in the Management Console)
2. Navigate to the SEG Engine key:
   • In version 8.X: HKEY_LOCAL_MACHINE\SOFTWARE\Trustwave\Secure Email Gateway\Default\Engine
   • 10.X: value names have the prefix Engine. (Engine dot).
   • For full details of the location for each product version, see article Q10832.
3. Add a value as follows:
   • Data Type: DWORD (Integer)
   • Value Name: HashUnpackAttachments
   • Value Data: 1 
4. Commit configuration.

• To disable hashing, set the value to 0 or delete the value.
• For full details of the Registry location, see article Q10832.

Notes:

Calculation of the hash is processing intensive. Ensure adequate system resource.