# NISTRDSFilter

A processor that compares the checksums of files against NIST RDS hash sets, to filter out any files that originate from operating systems or common application software.

NOTE: The NIST RDS hash sets are several gigabytes in size. Ensure that you have sufficient free disk space before configuring the processor.

## Properties

Micro Focus recommends that you configure this processor using the advanced configuration interface.

To configure the NIST RDS Filter processor

1. Right-click the processor and click Configure.
2. Click ADVANCED.
3. Choose the NIST RDS hash sets to download.
4. (Optional) Specify a proxy service to use for downloading the hash sets.

5. Click BUILD.

   The processor downloads the NIST RDS hash sets that you requested. The download might take several minutes.

6. Close the advanced configuration interface.

## Relationships

Name | Description
--- | ---
success | Processing was successful and the file does not appear in a NIST RDS hash set.
filtered | Processing was successful. The file appears in a NIST RDS hash set. The processor also adds the XML metadata element `<AUTN_NIST_RDS_LIST>1</AUTN_NIST_RDS_LIST>` to the document.
failure | Processing failed.

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