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Computing in Geographic Information Systems
book

Computing in Geographic Information Systems

by Narayan Panigrahi
July 2014
Intermediate to advanced content levelIntermediate to advanced
303 pages
8h 34m
English
CRC Press
Content preview from Computing in Geographic Information Systems
190 Computing in Geographic Information Systems
10.4.1.3 S-63
S-63 is an IHO standard for encrypting and securing ENC data. The standard
was adopted as the official IHO standard by the IHO member states in De-
cember 2002. The S-63 standard secures data by encrypting the basic transfer
database using the Blowfish algorithm, SHA-1-hashing the data based on a
random key and adding a CRC32 check. It also defines the use of DSA format
signatures to authenticate the data originator.
10.4.1.4 S-100
S-100 came into use on 1 January 2010. It explains how the IHO will use
and extend the ISO 1900 series of geographic standards for hydrographic,
maritime and related ...
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Publisher Resources

ISBN: 9781482223149