Message authentication code, based on  <a href="https://en.wikipedia.org/wiki/Image:MAC.gif" class="extiw" title="wikipedia:Image:MAC.gif"> MAC.gif</a>
<a href="//commons.wikimedia.org/wiki/User:Twisp" title="User:Twisp">Twisp</a>, based on diagram by <a href="https://en.wikipedia.org/wiki/User:Smilerpt" class="extiw" title="w:User:Smilerpt">w:User:Smilerpt</a>
2008-01-17
This <i>W3C-unspecified</i> <a href="https://en.wikipedia.org/wiki/Vector_images" class="extiw" title="w:Vector images">vector image</a> was created with <a href="https://en.wikipedia.org/wiki/Inkscape" class="extiw" title="w:Inkscape">Inkscape</a> .