Overwriting Hard Drive Data: The Great Wiping Controversy
Often we hear controversial opinions in digital forensics on the required or desired number of passes to utilize for properly overwriting, sometimes referred to as wiping or erasing, a modern hard drive. The controversy has caused much misconception, with persons commonly quoting that data can be recovered if it has only been overwritten once or twice. Moreover, referencing that it actually takes up to ten, and even as many as 35 (referred to as the Gutmann scheme because of the 1996 Secure Deletion of Data from Magnetic and Solid-State Memory published paper by Peter Gutmann) passes to securely overwrite the previous data. One of the chief controversies is that if a head positioning system is not exact enough, new data written to a drive may not be written back to the precise location of the original data. We demonstrate that the controversy surrounding this topic is unfounded.
KeywordsDigital Forensics Data Wipe Secure Wipe Format
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- 2.Amit, D.J.: Field Theory. In: The Renormalization Group and Critical Phenomena. World Scientific, Singapore (1984)Google Scholar
- 5.Bulsara, A., Chillemi, S., Kiss, L., McClintock, P.V.E., Mannella, R., Marchesoni, F., Nicolis, G., Wiesenfeld, K. (eds.): International Workshop on Fluctuations in Physics and Biology: Stochastic Resonance, Signal Processing and Related Phenomena, p. 653. Nuovo Cimento 17D (1995)Google Scholar
- 6.Carroll, T.L., Pecora, L.M.: Phys. Rev. Lett. 70, 576 (1993a)Google Scholar
- 7.Carroll, T.L., Pecora, L.M.: Phys. Rev. E 47, 3941 (1993b)Google Scholar
- 9.Gammaitoni, L., Hänggi, P., Jung, P., Marchesoni, F.: Stochastic resonance. Reviews of Modern Physics 70(1) (January 1998)Google Scholar
- 12.Gutmann, P.: Secure Deletion of Data from Magnetic and Solid-State Memory. In: Proceedings of the Sixth USENIX Security Symposium, San Jose, CA, July 22-25, pp. 77–90 (1996), http://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html
- 14.Liu, D.: Topics in the Analysis and Computation of Stochastic Differential Equations, Ph. D. thesis, Princeton University (2003)Google Scholar
- 15.Mayergoyza, I.D., Tse, C., Krafft, C., Gomez, R.D.: Spin-stand imaging of overwritten data and its comparison with magnetic force microscopy. Journal Of Applied Physics 89(11) (2001)Google Scholar
- 16.Moss, F.: In: Weiss, G.H. (ed.) Contemporary Problems in Statistical Physics, pp. 205–253. SIAM, Philadelphia (1994)Google Scholar
- 18.Reznikoff, M.G.: Rare Events in Finite and Infinite Dimensions, Ph. D. thesis, New York University (2004)Google Scholar
- 20.Tesla, N.: The Great Radio Controversy, http://en.wikipedia.org/wiki/Invention_of_radio
- 21.Jiles, David: Introduction to magnetism and magnetic materials, 2nd edn. Chapman & Hall, Boca Raton (1998)Google Scholar