[Gdal-dev] Re: [FWTools] GDAL/ORG S-57 & S-63 encyption?

s duclos sylvain_duclos at yahoo.com
Mon Mar 7 10:05:33 EST 2005

Hi Frank,

The info is at http://www.iho.shom.fr/
under publication/downloadlist

Here is a cut&paste of the S-63 section of that

S-63 (Free)   	IHO Data Protection Scheme (Ed 1.0 Oct
Español 	240

(Appendix 1) Test Data
(Appendix2) Software Kernel
S-63 Data Server Agreement
S-63 OEM Agreement
S-63 SA Certificate
S-63 Guidance Notes

Its DRM for ENC more or less



--- Frank Warmerdam <fwarmerdam at gmail.com> wrote:
> On Mon, 07 Mar 2005 14:05:24 +0000, James Goodwin
> <James.Goodwin at sea.co.uk> wrote:
> > Dear All,
> > 
> > I note that GDAL can load S-57 files and they may
> be displayed using fwtools.  The majority of
> commercially available S-57 charts are encypted
> using the S-63 format.
> > 
> > Is it possible to access S-63 encrypted S-57 files
> using GDAL?
> James, 
> The short answer is no. 
> I haven't seen the S-63 name before.  I do have a
> whack of
> documents from Primar (dated 2000) on their
> encryption system.
> Would you happen to know if this is the same thing? 
> Is S-63 a
> form that Primar distributes data in? 
> I did investigate the possibility of licensing
> Primar's toolkit for
> accessing their datasets on behalf of a client;
> however, in the
> end we decided against it because it was
> complicated, not
> cross platform, and we were unlikely to be able to
> enforce the
> usage limitations they required. 
> Basically, if you receive encrypted data it is
> mainly because
> the provider wants to limit your use of that data to
> very specific
> situations.  Basically, to hardware navigation
> systems.  They don't
> want you to be able to translate the data into other
> formats 
> because then they lose control.  So, it is unlikely
> that I would be
> able to implement S-63 support. 
> That said, I would appreciate a few pointers to info
> on S-63.  Also,
> I would encourage you to complain to your data
> provider about 
> their efforts to make their data less useful to you.
> Best regards,
> -- 
> I set the clouds in motion - turn up   | Frank
> Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows |
> http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial
> Programmer for Rent
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