03-01-2012 - RDS Version 2.36 Version 2.36 of the RDS is contained on four CDs. The RDS is divided into four portions according to the SHA-1 hash value of file contents. 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 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. CD "A" 20,844,007 files, 6,475,415 unique SHA-1 values CD "B" 20,945,642 files, 6,474,531 unique SHA-1 values CD "C" 20,801,803 files, 6,475,208 unique SHA-1 values CD "D" 21,020,330 files, 6,467,770 unique SHA-1 values ------------------------------------------------- TOTAL 83,611,782 files, 25,892,924 unique SHA-1 values The four files named "NSRLFile.txt" on the four CDs should be concatenated into one file and used as a whole. When concatenated, you will have a hashset with a total of 83,611,782 files. Due to duplication across the CDs, this can be reduced to 25,892,924 unique SHA-1 values. If you have questions regarding the use of the NIST National Software Reference Library Reference Data Set, you will find current contact information given below and at http://www.nsrl.nist.gov . Hash values of the files in the NSRL RDS are available on the website to provide traceability, as the RDS may be freely copied to any media. The RDS is digitally signed to allow NIST to be able to verify that no changes have been made to its contents. As long as no modifications to the contents have been made, a notice that NIST is the originator of the contents must accompany each copy made. If modifications are made, references to NIST as the producer must be removed. National Institute of Standards and Technology ATTN: NSRL Project 100 Bureau Drive, Stop 8970 Gaithersburg, MD 20899-8970 USA E-mail: nsrl@nist.gov Phone: 301-975-3262 FAX: 301-948-6213