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Re: List of Full Disc Encryption products
From: "Bora Dal" <boradal () gmail com>
Date: Fri, 7 Jul 2006 15:47:56 +0300

Hi all,

I have a some dark clouds related to the issue of partially encrypting
hard drives... Let say I am partially encrypting my drive; some folders
and files. When a encrypted file is opened, it is likely that it will be
copied to a temp folder. When I am done with it, the file will be left
there or hopefully deleted. This depends on the applicaition used to open
the file. If it is left there that is really a problem, unless I
specifiaclly find a way to encrypt all those temp areas used by my
applications. Even the application deletes the file that it is done with,
it is not wiped(meaning completeky deleted, overwritten from the hard disk
surface) Does any of the partial encrypting solutions take care of this

If not partial encryption wont be any good and it will leave many security
openings. Swap files are also an issue. As we know basically if the memory
goes low, OSes have the tendency to write to swap files. Even I set my
swap to be cleared with restart, its just deleted from the harddrive, can
be restored fully/partially with the file recovery solutions.

Does partial encryption solutions take cover these and all possible(lets
say known) issues. If not, I would automatically choose full drive
encryption. At least gives me the feeling that "all" is encrypted and
suprises(mentioned above) are mostly covered.


Bora Dal, CISSP

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