OpenGIS Web Map Service (WMS) implementation specification does not currently cover
security aspect to control access to data based on layers, attribute or geometry
criteria. Due to political aspect regarding geodata, such features are often required
in europe. Some vendors have implemented access control but it doesn't usually work
with plain WMS client.

This conference will present a simple solution to control access to WMS data, which
works transparently with any existing WMS compliant client, with a SSL tunneling
system between server and client.

Current OGC  work to extend secured OGC services will also be discussed and compared
with this approach.