... by the nice people at OSA and put them together properly so you can instantly unpack and use them in Calligra Flow.
As a result, we finally have a great open source diagramming program with sharp looking stencils to make sharp looking professional diagrams!
Very big thanks to OSA for providing their icon library free under the Creative Commons. Visit them at http://www.opensecurityarchitecture.org/cms/library/icon-library
Calligra Flow home: http://www.calligra.org/flow/