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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | Re: GISList: data scrambling techniques/ methods/ tools |
| Date: |
09/15/2002 01:09:01 PM |
| From: |
Quantitative Decisions |
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At 04:55 PM 9/10/02 +0300, Mehdi-ul-Hasnain Bokhari wrote:
>Do any of you know of any spatial data scrambling (all GPS, Imagery,
>Vector data) techniques that can be shared? We do not want to share some
>spatial data as it is with the development group.
>
>Does ESRI tool provide any of such built tools, procedures?
Please see the articles that appeared recently in Directions Magazine on
the Web about "vector steganography." They include ArcView and MapInfo
based tools for various kinds of data "scrambling."
http://www.directionsmag.com/article.php?article_id=189
http://www.directionsmag.com/article.php?article_id=192
http://www.directionsmag.com/article.php?article_id=195
As far as I know, ESRI does not support data encryption, protection,
validation, or authentication "out of the box," but to some extent such
capabilities can be added on. ArcView 3.x, for example, lets users write
their own image readers, so it would be possible to encrypt raster
images. ArcGIS 8.x offers a richer environment that can exploit
capabilities in many other databases, so it certainly could support the
development of data encryption methods.
--Bill Huber
Quantitative Decisions
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