Visual Authentication of Digital Documents
Integrity and authentication of digital documents is assured, if the complete route from input to output, i. e. from Alice to Bob is safe. To assure this safety a digital document is watermarked, with the shape of the watermark known to the transmitter. This guarantees that between creation and encryption no manipulation stays undetected, because a changed final documents is recognizable by the wrong watermark. The document including the watermark is send to the receiver after successful visual verification. The receiver can check its authenticity with the two following criterions: On the one hand, directly via the embedded watermark, which a third party can not alter without detection.
– On the other hand, the duration of the transmission is used as a criterion for control. This duration is about a few seconds. This duration is too short for successful manipulation with today`s technology.
Further Information: PDF
Universität des Saarlandes Wissens- und Technologietransfer GmbH PatentVerwertungsAgentur der saarländischen Hochschulen
Phone: +49 (0)681/302-6340
Contact
Dr. Dipl. Chem. Anne Seifert, Dipl.-Kfm. Axel Koch (MBA), Dr. Hauke Studier (Dipl.-Phys.)
Media Contact
All latest news from the category: Technology Offerings
Newest articles
Sea slugs inspire highly stretchable biomedical sensor
USC Viterbi School of Engineering researcher Hangbo Zhao presents findings on highly stretchable and customizable microneedles for application in fields including neuroscience, tissue engineering, and wearable bioelectronics. The revolution in…
Twisting and binding matter waves with photons in a cavity
Precisely measuring the energy states of individual atoms has been a historical challenge for physicists due to atomic recoil. When an atom interacts with a photon, the atom “recoils” in…
Nanotubes, nanoparticles, and antibodies detect tiny amounts of fentanyl
New sensor is six orders of magnitude more sensitive than the next best thing. A research team at Pitt led by Alexander Star, a chemistry professor in the Kenneth P. Dietrich…
