Secrets Hidden in PDF Pages

In this episode, we explore a novel method for distributed steganography using PDF files. The technique involves splitting a secret message using secret sharing algorithms and embedding the parts into PDFs by manipulating their internal structure—specifically through hidden pages. We discuss how this approach makes the embedded data virtually invisible to standard PDF readers, the challenges of detecting such hidden content, and the method’s resilience to common attacks. Visit our website here: https://sites.google.com/view/connected-components/home