How to Encode a Secret Message in a Fingerprint

IEEE Spectrum  November 2, 2018
Researchers in China have developed a sophisticated way to construct digital fingerprints that encode secret messages into the continuous lines that occasionally swirl into spiral points. The technique involves mapping the message to a polynomial and encode it into a set of points with different polarities, from which the spiral phase is computed and constructed. The continuous phase is constructed by decomposing a fingerprint image synthetically generated. The spiral phase and the continuous phase are combined to form the hologram phase to form a common from. They have demonstrated that the encoded message can be extracted accurately…read more. TECHNICAL ARTICLE

Illustration: Shutterstock

Posted in Sensors and tagged , .

Leave a Reply