Is there a way to protect read-only files from copying/theft?

Is there a way to protect read-only files from copying/theft?
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Subject Author Date
Is there a way to protect read-only files from copying/theft? Raymond Lee 06-04-2004
Posted by Raymond Lee on June 4, 2004, 8:18 pm
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We have a set of files stored on a remote system that we need to protect
from copying/theft. The application software requires read access from all
users at that location. Is there any form of an encryption system that
requires a physical "key" to access the data? What other solutions might
exist? Thanks in advance

RL




Posted by Walter Roberson on June 4, 2004, 8:58 pm
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:We have a set of files stored on a remote system that we need to protect
:from copying/theft. The application software requires read access from all
:users at that location. Is there any form of an encryption system that
:requires a physical "key" to access the data? What other solutions might
:exist?

You don't mention a platform. You also don't mention how you are
going to prevent users at that location from copying off the files
that they have clear access to. And you don't mention how you are
going to prevent the physical key from being duplicated. And since you
don't seem concerned about local users subverting the security, by
implication you have some sort of remote access to that system: you
don't mention how you are going to prevent those remote access programs
from being subverted to allow remote users clear access.

There are filesystem encryption programs for Windows which do
"two factors encryption", using a filesystem encryption layer and
[amongst other choices] a floppy with the second part of the key, so
that if someone manages to make a copy of the physical disk but doesn't
get the floppy while they are at it, then they would have a hard time
doing anything with the data.

One of the ways that secure installations deal with this issue is by
physically locking the disks in a vault every night and putting guards
impeding access to the vaults.
--
Come to think of it, there are already a million monkeys on a million
typewriters, and Usenet is NOTHING like Shakespeare. -- Blair Houghton.


Posted by Bill Unruh on June 4, 2004, 11:24 pm
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]We have a set of files stored on a remote system that we need to protect
]from copying/theft. The application software requires read access from all
]users at that location. Is there any form of an encryption system that
]requires a physical "key" to access the data? What other solutions might
]exist? Thanks in advance


The on off switch?
Most encryption keys are data, not physical. You could convert a physical
action to data-- eg plug a dongle into the port and have the program read
it. But I think you need to be more specific about your needs. Remember
that once one of those users has pulled out the data, they can copy that
data and take it away with them. Is this a worry? Is the worry about
insiders or outsiders? Is the worry about physical access? Is the system
connected to the net or not? ...




Posted by Thor Kottelin on June 5, 2004, 7:06 am
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Raymond Lee wrote:
>
> We have a set of files stored on a remote system that we need to protect
> from copying/theft. The application software requires read access from all
> users at that location. Is there any form of an encryption system that
> requires a physical "key" to access the data?

If they can see the information, they can copy it. This has been covered
many times already.

Thor

--
http://www.anta.net/                IRCnet #areena


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