Data Wiper Pass, Speed and Security features Comparison

by William / Thu Nov 15 2018

Pass

Fill with zero (1-pass)

Fill with pseduo-random (1-pass)

Fill with zero and one (2-pass)

DoD 5220.22-M (3-pass)

DoD 5220.22-STD (7-pass)

Perter Gutmann's Algorithm (35-pass)

Fill with zero ( very fast )

Fill with pseduo-random ( very fast )

Fill with zero and one ( fast )

DoD 5220.22-M ( slow )

DoD 5220.22-STD ( very slow )

Gutmann ( super slow )

Fill with zero

Fill with pseduo-random

Fill with zero and one

DoD 5220.22-M

DoD 5220.22-STD

Perter Gutmann's Algorithm

That being listed, one pass overwrite is sufficient to achieve data sanitization