Acronis power utilities User Manual
NN
Algorithm
(writing
method)
Passes Record
5.
Russian: GOST
P50739-95
P50739-95
1
Logical zeros (0x00 numbers) to
each byte of each sector for 6
each byte of each sector for 6
th
to
4
th
security level systems.
Randomly selected symbols
(numbers) to each byte of each
sector for 3
(numbers) to each byte of each
sector for 3
rd
to 1
st
security level
systems.
6.
P. Gutmann’s
algorithm
algorithm
35
Peter Gutmann’s algorithm is very
sophisticated. It’s based on his
theory of hard disk information
wiping (see
sophisticated. It’s based on his
theory of hard disk information
wiping (see
7.
B. Schneier’s
algorithm
algorithm
7
Bruce Schneier offers seven pass
overwriting algorithm in his Applied
Cryptography book. 1
overwriting algorithm in his Applied
Cryptography book. 1
st
pass – 0xFF,
2
st
pass – 0x00, and then five times
with a cryptographically secure
pseudo-random sequence.
pseudo-random sequence.
8.
Fast
1
Logical zeros (0x00 numbers) to all
sectors to wipe.
sectors to wipe.
Acronis PowerUtilities
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