Videos

USENIX Security ’24 – Landscape More Secure Than Portrait?

Landscape More Secure Than Portrait? Zooming Into the Directionality of Digital Images With Security Implications Benedikt Lorch and Rainer Böhme, University of Innsbruck The orientation in which a source image is captured can affect the resulting security in downstream applications. One reason for this is that many state-of-the-art methods in media security assume that image statistics are similar in the horizontal and vertical directions, allowing them to reduce the number of features (or trainable weights) by…

Progressive JPEGs in the Wild (by Nora Hofer, University of Innsbruck)

IH&MMSec '23 presentation Link to paper  Full reference: Hofer, N. and Böhme, R. Progressive JPEGs in the Wild: Implications for Information Hiding and Forensics. In Proceedings of the 11th ACM Workshop on Information Hiding and Multimedia Security (IH&MMSEC). ACM, Chicago, IL, 2023, pp. 47–58. This paper won the workshop's Best Student Paper Award! Recording & video editing: Judith Senn

The Effect of the JPEG Implementation on the Cover- Source Mismatch Error in Image Steganalysis

(presented by Martin Beneš, University of Innsbruck) EUSIPCO '22 conference talk Link to a preprint of the paper here Full reference: Beneš, M., Hofer, N., and Böhme, R. The Effect of the JPEG Implementation on the Cover-Source Mismatch Error in Image Steganalysis. In Proceedings of the 30th European Signal Processing Conference (EUSIPCO). EURASIP, Belgrade, Serbia, 2022. Recording & video editing: Gloria Dzida