2022/07/15 by Andrew Critch, Critch, Andrew · 1 citation
Computer Science · Psychology · Social Sciences · #68P25 #68T01 #94A62 #Advanced Steganography and Watermarking Techniques #Artificial Intelligence (cs.AI) #Computers and Society (cs.CY) #Cryptography and Security (cs.CR) #E.3 #FOS: Computer and information sciences #I.2 #K.4 #Privacy, Security, and Data Protection #Sexuality, Behavior, and Technology
paper · pdf · doi:10.48550/arxiv.2207.10806
openalex publication_date 2022/07/15 · openalex created_date 2022/07/27 · openalex updated_date 2026/07/28
Deepfakes can degrade the fabric of society by limiting our ability to trust video content from leaders, authorities, and even friends. Cryptographically secure digital signatures may be used by video streaming platforms to endorse content, but these signatures are applied by the content distributor rather than the participants in the video. We introduce WordSig, a simple protocol allowing video participants to digitally sign the words they speak using a stream of QR codes, and allowing viewers to verify the consistency of signatures across videos. This allows establishing a trusted connection between the viewer and the participant that is not mediated by the content distributor. Given the widespread adoption of QR codes for distributing hyperlinks and vaccination records, and the increasing prevalence of celebrity deepfakes, 2022 or later may be a good time for public figures to begin using and promoting QR-based self-authentication tools.