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Posted by Daniel Rudy on August 6, 2005, 1:19 pm
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Hello,
I was wondering if anyone has even heard of this. I'm looking for a
USB thumb drive in which any information that is saved on the drive is
encrypted with a password. If the password is entered incorrectly a
preset number of times, then the information on the drive is
overwritten, multiple times, and then the actual FlashROM chip is blown,
destroying the device.
I know of one manufactuer that does the auto-erase if you enter the
wrong password, but I have yet to see a device that will self-destruct.
The reason that I'm looking for this is that I want to transport some
very sensitive data. I would rather have the data destroyed than to
fall into the wrong hands.
--
Daniel Rudy
Email address has been encoded to reduce spam.
Remove all numbers, then remove invalid, email, no, and spam to reply.
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Posted by Juergen Nieveler on August 8, 2005, 8:00 am
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> I was wondering if anyone has even heard of this. I'm looking
> for a USB thumb drive in which any information that is saved on the
> drive is encrypted with a password. If the password is entered
> incorrectly a preset number of times, then the information on the
> drive is overwritten, multiple times, and then the actual FlashROM
> chip is blown, destroying the device.
>
> I know of one manufactuer that does the auto-erase if you enter the
> wrong password, but I have yet to see a device that will
> self-destruct.
You aren't going to find this, at least not commercially. What you're
asking for could be seen as a small bomb, after all...
Besides, why bother destroying the chip? If the data is erased correctly
it's gone - there is no residual magnetism in a flash-chip, after all.
Juergen Nieveler
--
Actually, that IS a gun in my pocket
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Posted by John Veldhuis on September 1, 2005, 3:06 pm
If you were Registered and logged in, you could reply and use other advanced thread options
> Hello,
>
> I was wondering if anyone has even heard of this. I'm looking for a
> USB thumb drive in which any information that is saved on the drive is
> encrypted with a password. If the password is entered incorrectly a
> preset number of times, then the information on the drive is
> overwritten, multiple times, and then the actual FlashROM chip is blown,
> destroying the device.
>
> I know of one manufactuer that does the auto-erase if you enter the
> wrong password, but I have yet to see a device that will self-destruct.
> The reason that I'm looking for this is that I want to transport some
> very sensitive data. I would rather have the data destroyed than to
> fall into the wrong hands.
>
I do that with my pocketpc...
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Posted by Ulrich Boche on September 2, 2005, 10:43 am
If you were Registered and logged in, you could reply and use other advanced thread options
> Hello,
>
> I was wondering if anyone has even heard of this. I'm looking for a
> USB thumb drive in which any information that is saved on the drive is
> encrypted with a password. If the password is entered incorrectly a
> preset number of times, then the information on the drive is
> overwritten, multiple times, and then the actual FlashROM chip is blown,
> destroying the device.
>
> I know of one manufactuer that does the auto-erase if you enter the
> wrong password, but I have yet to see a device that will self-destruct.
> The reason that I'm looking for this is that I want to transport some
> very sensitive data. I would rather have the data destroyed than to
> fall into the wrong hands.
>
I'm not sure that looking for self-destruction of the memory chip would
be the right thing to do. If your data is really very sensitive, you
need to be concerned about any attack against the device once it left
the hands of the rightful owner. If the value of your data makes it
worthwhile, an attacker would probably not try to enter the password at
all but try to read the memory chips with laboratory level equipment. A
vast number of attacks is possible at that level and devices which are
protected against them at various levels can be rather complicated and
expensive.
Some smart cards are protected at a lower level, IBM crypto cards like
the PCIXCC card or the CryptoExpress 2 card are protected at the highest
level (FIPS 140-2 level 4). You would need to ask the provider of your
device (USB stick or whatever) for their FIPS 140-2 certification level.
--
Ulrich Boche
SVA GmbH, Germany
IBM Premier Business Partner
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