Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Security-Basics
[Top] [All Lists]

Re: Flash Memory Wiping

Subject: Re: Flash Memory Wiping
Date: Wed, 24 Jan 2007 12:16:31 -0600
For some good discussions on the implications of writing to flash and
how the wear-leveling algorithms incorporated by them get in the way
of erasure and overwriting, I would recommend the following links:

http://forums.truecrypt.org/viewtopic.php?t=1702
http://bbs.heidi.ie/viewtopic.php?t=1568&sid=60ea6000a914dced82196c64783feacc

Lou Losee
atsec information security corp.

On 1/23/07, Dragos Ruiu <dr@eusecwest.com> wrote:
On Monday 22 January 2007 12:55, C Anctil wrote:
> I would encrypt the the files before deleting them. If they ever get
> recovered, they would at least be encrypted. I would use something
> like truecrypt.

This also would not work so well on flash, as you would likely wind up
with encrypted and unecrypted versions sitting on the flash simultaneously.
Overwriting works oddly with flash...

cheers,
--dr

--
World Security Pros. Cutting Edge Training, Tools, and Techniques
London, U.K.    Mar 1-2 - 2007    http://eusecwest.com
pgpkey http://dragos.com/ kyxpgp



--
Artificial Intelligence is no match for Natural Stupidity

<Prev in Thread] Current Thread [Next in Thread>