|
|
| GeoCommunity Mailing List |
| |
| Mailing List Archives |
| Subject: | GISList: Protecting GIS data (cross-posted) |
| Date: |
05/06/2002 09:53:07 AM |
| From: |
Bill Huber |
|
|
Dear GISers,
Questions like "how do I protect my data sets from being used by
competitors" have been appearing with increasing frequency lately.
Most GIS software does not include any kind of dataset encryption
capability. (There's a nice add-on for somebody to write, perhaps).
However, there still are things you can do to protect your rights to GIS
data. You can copyright them and you can "sign" them digitally. This
makes it possible to prove ownership of digital data, even if a competitor
reprocesses them.
Copyrights and signatures require being able to "hide" messages in the data
in a way that's invisible to the user's eye and to the computer's
processing. Hiding messages in data is called "steganography".
Raster steganography has been with us a long time but vector steganography
is new.
Bill Thoen of GISNet (http://www.gisnet.com) and I write about vector
steganography in a series of articles and sidebars recently published on
the Web at www.directionsmag.com. We include software (working prototypes)
with source code in MapBasic and Avenue.
(If you have any trouble finding the articles, link directly to
http://www.directionsmag.com/article.php?article_id=189
and http://www.directionsmag.com/article.php?article_id=195).
--Bill Huber
Quantitative Decisions
www.quantdec.com
Posted to:
ArcView-L
ArcView
MapInfo-L
GisList
To unsubscribe, write to gislist-unsubscribe@geocomm.com
________________________________________________________________________
Setup a GeoCommunity Account and have access to FAST DataDownloads
and Premium Career Posting at a discounted rate!
https://www.geocomm.com/cgi-bin/accounts/login
On-line Archives available at
http://spatialnews.geocomm.com/community/lists/
|
|
Sponsored by:
For information
regarding
advertising rates
Click Here!
|
