[OPLIN 4cast] OPLIN 4cast #450: A new effort to stop child porn

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OPLIN 4cast #450: A new effort to stop child porn
August 12th, 2015

[image: hand stop signal]As we all know, the Internet contains a lot of
bleak and nasty stuff, and some of the bleakest and nastiest is child
pornography. For almost two decades, the Internet Watch Foundation, an
English charity, has worked to combat criminal material on the Internet,
and most recently has focused on minimizing the availability of images of
child sexual abuse. Now Google, Facebook, and Twitter have agreed to use
the IWF database of images identified as child pornography and block those
images from their web services. The IMF has sometimes been criticized for
being too aggressive in its policing efforts, and while no one is naive
enough to believe that this new partnership will end child pornography, it
seems like it might have the potential to help.

   - Google, Facebook, and Twitter have a new strategy to ban images of
   child abuse
   <http://motherboard.vice.com/en_ca/read/google-facebook-and-twitter-have-a-new-strategy-to-ban-images-of-child-abuse>
   (Motherboard | Kari Paul) "The companies are tapping into a database
   <http://www.bbc.com/news/uk-33844124> created by the Internet Watch
   Foundation (IWF) that uses hashing technology to identify and block child
   sex abuse images. The system works by running an illicit photo
   <http://www.telegraph.co.uk/technology/internet-security/11794180/Facebook-Google-and-Twitter-to-block-hash-list-of-child-porn-images.html>
   through an algorithm that creates a unique digital fingerprint for it. The
   hash is then added to the database that can identify the image if it is
   uploaded by another user, allowing the companies to detect and remove it
   without viewing the image itself."
   - Hash List "could be game-changer" in the global fight against child
   sexual abuse images online
   <https://www.iwf.org.uk/about-iwf/news/post/416-hash-list-could-be-game-changer-in-the-global-fight-against-child-sexual-abuse-images-online>
   (Internet Watch Foundation) "Not to be confused with a 'hash tag', a hash
   is a digital fingerprint of an image. There are billions of images on the
   internet and by creating a digital fingerprint of a single image, you can
   pluck it out, like finding a needle in a haystack. IWF will automatically
   begin creating three types of hashes to meet the needs of the online
   industry. It will create PhotoDNA (technology developed by Microsoft), MD5
   and SHA-1 hashes."
   - Facebook, Google and Twitter block 'hash list' of child porn images
   <http://www.telegraph.co.uk/technology/internet-security/11794180/Facebook-Google-and-Twitter-to-block-hash-list-of-child-porn-images.html>
   (The Telegraph | Sophie Curtis) "The IWF said many internet companies can
   make use of the hash list, including those that provide services such as
   the upload, storage or search of images, filtering services, hosting
   services, social media and chat services, data centres and connectivity
   services. The hash list is constantly growing, and has the potential to
   reach millions of hashes of images. The IWF claims to remove around 500 web
   addresses containing child sexual abuse material every day, with one web
   address containing up to thousands of images."
   - Cambridgeshire's Internet Watch Foundation launches 'hash list' in bid
   to rid web of abuse images
   <http://www.cambridge-news.co.uk/Cambridgeshire-8217-s-Internet-Watch-Foundation/story-27580353-detail/story.html>
   (Cambridge News | Florence Snead) "All five companies involved in the
   scheme's first stage, which started last week, were already IWF members but
   if all goes well it could be rolled out to other members within a matter of
   months. The next step would be to approach organisations worldwide, who do
   not currently work with the IWF. The charity is keen to work with more
   image hosting companies which are at particular risk of being targeted by
   people putting such media online."

*Articles from Ohio Web Library <http://ohioweblibrary.org>:*

   - The politics of Internet filtering: The United Kingdom and Germany in
   a comparative perspective.
   <http://search.ebscohost.com.proxy.oplin.org/login.aspx?direct=true&db=aph&AN=93468565&site=ehost-live>
   (*Politics*, Feb. 2014, p.58-71 | Ben Wagner)
   - Robust image hashing via colour vector angles and discrete wavelet
   transform.
   <http://search.ebscohost.com.proxy.oplin.org/login.aspx?direct=true&db=buh&AN=101625945&site=ehost-live>
   (*IET Image Processing*, March 2014, p.142-149 | Zhenjun Tang, Yumin
   Dai, Xianquan Zhang, Liyan Huang, and Fan Yang)
   - Perceptual image hashing using local entropies and DWT.
   <http://search.ebscohost.com.proxy.oplin.org/login.aspx?direct=true&db=aph&AN=85846527&site=ehost-live>
   (*Imaging Science Journal*, Feb. 2013, p.241-251 | Z.J. Tang, X.Q.
   Zhang, Y.M. Dai, and W.W. Lan)

------------------------------
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