Here are some of the standards by country that we have been able to find regarding the disk sanitization problem:
- ASCI 33: 5 pass wipe, 1 pass with character, 1 pass with inverse of character, repeat first two passes, 1 pass random.
- VSItR: 7 pass wipe followed by verification.
- GOST R 50739-95: Single pass with random data.
- BHMG Infosec Standard no.5: Three pass wipe followed by verification.
- AFSSI-5020 (pdf):USAF Data Sanitization Standard.
- NIST 800-88 (pdf): Guidelines for Data Sanitation, Sept 2006.
- DoD Destruction (pdf): Disposition of Unclassified DoD Computer Hard Drives, Assistant Secretary of Defence, June 4, 2001.
- DoD 5200.28-STD (pdf): Department of Defence Trusted Computer System Evaluation Criteria], December 26, 1985.
- DoD 5220.22-M (pdf): National Industrial Security Program Operating Manual], January 1995, incorporating Change One (July 1997) and Change Two (February 2001).
- NAVSO P-5239-26: US Navy standards for RLL and MFM encoded drives.
- Gutmann Wipe (pdf): Secure Deletion of Data from Magnetic and Solid-State Memory by Peter Gutmann. Overwrite process using a sequence of 35 consecutive writes. First published in the Sixth USENIX Security Symposium Proceedings, San Jose, Ca, July 22-25, 1996.
- Schneier Wipe: Two pass of specific characters followed by five passes of Pseudo Random Data. Published by Bruce Schneier in Applied Cryptography, 1996