[gdal-dev] Problem In reading S-63 Chart

peio Elissalde peio at justmagic.com
Fri Sep 4 05:20:42 EDT 2009

Hello Vinod and Franck,

Actually, SENC stands for System ENC.
SENC are the internal chart database proprietary formats specific to  
the different developers of ECS (Electronic Chart System) or ECDIS  
(Electronic Chart Display and Information System) software  
applications, created from decrypted ENC files which can be in non  
protected s-57 open exchange format (used by NOAA) or in s-63  
encrypted format, IHO (International Hydrographic Organization) Data  
Protection Scheme for the protection of ENC information by most of the  
other Hydrographic Services and distributed by Primar and IC-ENC.
s-63 defines security constructs and operating procedures that must be  
followed to ensure that the data protection scheme is operated  
correctly and to provide specifications that allow participants to  
build compliant systems.
Regarding s-63 implementation, see :

Best regards

Peio Elissalde
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