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NN
Algorithm
(writing
method)
Passes Record
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.
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