Monday, 15 December 2008

And off to India

I leave tomorrow for JNTU, Hyderabad, India. I am presenting a paper at the ICISS 2008 conference.

My presentation is on Thursday, December 18, 2008:
16:30 - 18:00 Session III: Biometrics, Forensics and Steganography

Overwriting Hard Drive Data: The Great Wiping Controversy
Craig Wright, Dave Kleiman and Shyaam Sundhar R.S..

More when I get back, the abstract follows:

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."

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