Photometrix (TM): A Digital Seal for Offline Identity Picture Authentication
Marc Michel Pic, Amine Ouddan · 2017
Picture falsification on identity documents is a recurring problem. Text falsification can be mitigated on printed documents thanks to digital signature, but for picture the only safe strategy was to integrate an expensive electronic chip in the document. This paper proposes a low-cost alternative, allowing to check offline the authenticity of the image thanks to digitally signed characteristics extracted from the picture.