![]() ![]() British HMG IS5 (Enhanced) (3 passes) – This 3-pass approach is the more secure of two methods (Enhanced and Basic) defined in HMG IS5.US DoD 5220.22-M (8-306./E) (3 passes) – A 3-pass sanitization method specified by the United States Department of Defense. ![]() German VSITR (7 passes) – Developed for Germany’s Federal Office for Information Security, this 7-pass method is no longer used by that government for erasing classified information and documents but is more than sufficient for most civilian uses.Schneier 7 pass (7 passes) – Designed by Bruce Schneier, this method uses 7 passes and was originally laid out in Schneier’s book, “ Applied Cryptography: Protocols, Algorithms, and Source Code in C”.US DoD 5220.22-M (8-306./E, C & E) (7 passes) – A 7-pass sanitization method specified by the United States Department of Defense.Overwrites the data with 35 different patterns, some of which are irrelevant for modern disk drives. Gutmann (35 passes) – Designed in 1996 to erase drives when you don’t know the algorithm used to encode the data on the disk. ![]()
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