British HMG IS5 (Baseline) (1 pass)
Your data is overwritten with zeroes with verification
British HMG IS5 (Enhanced) (3 passes)
British HMG IS5 (Enhanced) is a three pass overwriting algorithm:
first pass - with zeroes,
second pass - with ones and the last pass with random bytes (last pass is verified).
Russian GOST P50739-95 (2 passes)
GOST P50739-95 wiping scheme calls for a single pass of zeroes followed by a single pass of random byte.
US Army AR380-19 (3 passes)
AR380-19 is data wiping scheme specified and published by the U.S. Army.
AR380-19 is three pass overwriting algorithm:
first pass - with random bytes,
second and third passes with certain bytes and with its compliment (with last pass verification) .
US Department of Defense DoD 5220.22-M (3 passes)
DoD 5220.22-M is three pass overwriting algorithm:
first pass - with zeroes,
second pass - with ones and the last pass with random bytes. With all passes verification.
US Department of Defense DoD 5220.22-M (E) (3 passes)
DoD 5220.22-M (E) is three pass overwriting algorithm:
first pass - with certain bytes,
second pass - with its complement and the last pass - with random bytes.
US Department of Defense DoD 5220.22-M(ECE) (7 passes)
DoD 5220.22-M(ECE) is seven pass overwriting algorithm:
first and second passes - with certain bytes and with its compliment,
then two passes with random character,
then two passes with character and its complement and the last pass -
with random character.
NAVSO P-5239-26 (RLL)
NAVSO P-5239-26 (RLL) is three pass overwriting algorithm with last pass verification.
NAVSO P-5239-26 (MFM)
NAVSO P-5239-26 (MFM) is three pass overwriting algorithm with last pass verification.
Canadian RCMP TSSIT OPS-II (7 passes)
RCMP TSSIT OPS-II is seven pass overwriting algorithm
with three alternating patterns of zeroes and ones and
the last pass - with random character (with last pass verification).
German VSITR (7 passes)
The German standard calls for each sector to be overwritten
with three alternating patterns of zeroes and ones and in the last pass with character.
Bruce Schneier (7 passes)
The Bruce Schneier wiping algorithm has seven passes:
first pass - with ones, the second pass - with zeroes and then five times with random characters.
Peter Gutmann (35 passes)
Peter Gutmann wiping algorithm has 35 passes.
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