This type of product has been developed by a Western Australian company called Secure Systems, from what i understand its a device that sits between the drive and the controller and only allows autherised access to the device, it also uses some form of encryption. I haven't seen the device so im not sure how well it works bit take a look at: http://www.securesystems.com.au/SiliconDataVault.html Adam On Mon, 28 May 2001, Wouter Slegers wrote: > On Thu, May 24, 2001 at 04:03:15PM +0200, Jochen Kaiser wrote: > > There is a group of similar products available which do far more: > [SNIP] > > There are at least 3 product which handle this. the one we test at the moment > > is http://www.daten-airbag.de/textvers/index.html > If I understand the information on this device correctly, this is a > modified BIOS disabling writes to the disk. This only works when all > disk access is via the BIOS, so this will not work with anything > directly accessing the IDE/ATA-controllers (e.g. OSes like *BSD, > SMART-disk-managementsoftware, maybe even the newer NT ATAPI-drivers?) > with writes to 0x01f0-8. > To block these attacks, one still needs to have something physically > interposed somewhere in the path from PCI-bus via controller to the > disk(s), preferbly just before the disks. > If there are ready-to-run chips or sourcecode for simple processors that > can interpreted the diskside of the ATA-commands, one could make an > "ATA-firewall" that would allow this kind of write-protection in a more > generic way. Building this yourself should be possible, but is > non-trivial to get right. > > With kind regards, > Wouter Slegers > Your Creative Solutions >
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