full-disclosure - Re: Disk wiping -- An alternate approach?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <4B5F34E6.4090304@csuohio.edu>
Date: Tue, 26 Jan 2010 13:31:02 -0500
From: Michael Holstein <michael.holstein@...ohio.edu>
To: Stefan Weimar <sw@...is.toppoint.de>
Cc: full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Disk wiping -- An alternate approach?

> Yes, but what if I overwrite the device with random data from the very
> first to the very last byte? Suppose the size of the device hasn't
> decreased I'd think that wear-levelling has no chance to spare blocks in
> this case.
>
>   

Research paper on forensics for flash media :

http://www.ssddfj.org/papers/SSDDFJ_V1_1_Breeuwsma_et_al.pdf

In any case, provided you take a factory-new drive and immediately
install an encrypted filesystem on it, any such "orphan" data would be
essentially random.

Regards,

Michael Holstein
Cleveland State University

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/