German researchers defeat printers' doc-tracking dots

www.theregister.co.uk | 6/26/2018 | Staff
Fubu_chik (Posted by) Level 3
Click For Photo: https://regmedia.co.uk/2018/06/27/dots_teaser_648.jpg?x=1200&y=794

Beating the unique identifiers that printers can add to documents for security purposes is possible: you just need to add extra dots beyond those that security tools already add. The trick is knowing where to add them.

Many printers can add extra dots to help identify which device printed a document, as it's handy to know that when they fall into the wrong hands. The technique works: it helped to sink NSA leaker Reality Winner, among others, and has also helped in its original purpose of defeating counterfeiters.

Technique - Potency - Thanks - Quartet - Researchers

But the technique's potency may be waning, thanks to a quartet of researchers from the Technical University of Dresden.

Timo Richter, Stephan Escher, Dagmar Schönfeld, and Thorsten Strufe reckon they've cracked the challenge of knowing how to anonymise printed documents, and presented their work to the Association of Computer Machinery's 6th ACM Workshop on Information Hiding and Multimedia Security in Innsbruck, Austria last week.

Paper - TU - Dresden - Researchers

In this paper, the TU Dresden researchers explain that...
(Excerpt) Read more at: www.theregister.co.uk
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