NSRL Downloads

The RDS, from RDS 2.20 onward, does not support the categorization used in previous releases. For example, you cannot use CD "B" for exclusion of known operating system applications, as was possible previously.

NOTE: the data format has not changed, merely the allocation of space across the media.

The discs contain the following ranges of SHA-1 hash values:
CD "A" 0000000000000000000000000000000000000000
- 3FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

CD "B" 4000000000000000000000000000000000000000
- 7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

CD "C" 8000000000000000000000000000000000000000
- BFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

CD "D" C000000000000000000000000000000000000000
- FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF

See the description of the RDS contents for details

RDS 2.35 , December 2011

signatures of the four ISO images

description of the RDS contents

If you wish to preview the contents, you may download three smaller files without the hash metadata. These files conform to the NSRL data format.

Product listing - 2MB text file

Manufacturer listing - 80KB text file

Operating systems listing - 40KB text file

Be aware that the converted ZIP files are each between 1.00 and 2.00 GB in size.
NIST has also converted the RDS format data into data files for some commercial products:

Hashes of the zip files

Encase

Hashkeeper

Vogon

Contact nsrl@nist.gov with questions about other formats.

It is your responsibility to verify the ISO image files with the signatures and file sizes once they are downloaded. After you have used the image to create a CD, it is your responsibility to verify the data files on that CD with the signatures provided on that CD.

Reduced Sets

A "minimal" hashset is available which contains only 22,502,930 file hashes. This set only lists one example of every file in the NSRL. It cannot be used to determine all possible sources of a file. Minimal set (1.4GB)
SHA1(RDS_235m.zip)= e31241ce5d9b78c4cdedce4c4cc7b64c0e6706ec
MD5(RDS_235m.zip)= ca2839a04311c13c79bacbadba12d882

A "unique" hashset is available which contains only 13,787,616 file hashes. This set lists the files that appear only once in the entire NSRL collection. Unique set (897MB)
SHA1(RDS_235u.zip)= 09039ba49c51662e82a97f2c1aef060d7cd419b4
MD5(RDS_235u.zip)= 37fe03a186c253db425d3b7871756f26

Converting RDS format to other formats

There is a Windows GUI tool HashConverter.zip that the NSRL is allowed redistribute.

You can pick up the NSRL Perl conversion code at rds2hk.zip
When you unpack the zip file, there is one file, "rds2hk.pl".
enter
      perl rds2hk.pl -h
and you will get the help output:

Usage : rds2hk.pl [-h] -f format [-d RDS_directory]
      [-l logfile] [-p product_id] [-u]
      -h : help with command line options
      -f format : one of hk , 1.5 , 2.0 (MANDATORY)
      -l logfile : print log info to a file
      -d dir : directory holding NSRLProd.txt, NSRLFile.txt
      NSRLOS.txt and NSRLMfg.txt
      -p integer : use one ProductCode from NSRLProd.txt
      -u : guarantee a unique product line in hk output

Enter the command
      perl rds2hk.pl -f hk -d SOME_DIR

and you'll get two files, "outfile.hke" and "outfile.hsh"
that you can rename and pull into Hashkeeper.

Mappings of File SHA-1s to Path/File names

The project was not initially collecting the full path information for all of the files on all of the media in the NSRL collection, but we have some of that data, and it is available here.

You can download a zipped text file, NSRLLocn.txt, which contains the SHA-1, AppID, MediaID, and full path string for 28,569,382 files as of Jan. 7, 2004.

The SHA-1 of the zip file is 7E0B63CDFDBAC7D4664057F15FC7AC66ABE0E2EB and the MD5 is 59C2AB12EBB966C7F984B63D4C057B20 . The size is 460 MB.