= Chrome Browser Extension: Photo Metadata Privacy =

A Chrome browser extension that visualizes privacy-relevant image metadata
to users. Based on libexiv2 and Google Native Client the extension reads
Exif, IPTC and XMP metadata from files and visualizes the data according
to different groups of personal data. Complex metadata as person tags 
or location are specially visualized. Technical metadata is blinded 
by default, but can also be visualized.

As a proof of concept the extension allows for modifying metadata 
on-the-fly while uploading a photo via a basic HTML form.

The base version of this extension was implemented within the bachelor 
thesis of Maximilian Koch at the Distributed Computing & Security Group 
at the Leibniz Universität Hannover, Germany. The topic was outlined
and the thesis was advised by Benjamin Henne. The base version was
extended by Maximilian Koch advised by Benjamin Henne within a 
master studies project.

Technical details of the base version can be found in 
 Maximilian Koch: "A browser extension to increase photo metadata
 transparency and security on the Web", bachelor thesis (German).

The extension has been published in Henne et al.: "On the Awareness, 
 Control and Privacy of Photo Metadata", Financial Cryptography and 
 Data Security 2014, volume 8437 of LNCS, Springer.

Contact:
 http://www.dcsec.uni-hannover.de/
 henne@dcsec.uni-hannover.de


Copyright (C) 2012-2014  Benjamin Henne and Maximilian Koch
                         
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License 
along with this program. If not, see <http://www.gnu.org/licenses/>.


External resources. 
This Chrome extension uses following external resources:
* base64.cc (zlib License)
* jQuery (MIT License)
* OpenLayers (2-clause BSD license)
* exiv2 library (GPLv2)
* exiv2's generated documentation (descriptions in metatags.json)