<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: collapse; font-family: arial, sans-serif; font-size: 13px; ">Hello Vinod and Franck,</span><br><div><br></div><div><span class="Apple-style-span" style="font-family: Times; "><pre>> There is no support in GDAL/OGR for reading encrypted enc files (I assume
> S-63 is what is sometimes called S-ENC?). My understanding is that it would
> be hard to do this in open source software since the folks responsible are
> very particular about who they provide decryption keys to.</pre><div><font class="Apple-style-span" face="monospace"><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-style-span" style="font-family: arial, sans-serif; white-space: normal; border-collapse: collapse; font-size: 13px; ">Actually, SENC stands for System ENC.<br>SENC are the internal chart database proprietary formats created by the different developers of ECS (Electronic Chart System) or ECDIS (Electronic Chart Display and Information System) software applications 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.<br>It 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.<br>Regarding s-63 implementation, see :<br><a href="http://www.iho-ohi.net/english/about-encs/enc-data-protection/implementing-the-iho-security-scheme.html" target="_blank" style="color: rgb(42, 93, 176); ">http://www.iho-ohi.net/english/about-encs/enc-data-protection/implementing-the-iho-security-scheme.html</a><br><br>Best regards<br><br>--<br>Peio Elissalde</span></span></font></div></span></div></body></html>