DeepSec 2025 Talk: Fake News, Fake Pics: Securing Image Provenance in a Post-Quantum World – Maksim Iavich
With quantum computers on the horizon, today’s cryptographic defenses are running out of time. Fake news, deepfakes, and manipulated media already threaten digital trust, and quantum attacks will soon break the few remaining verification systems. Post-Quantum VerITAS is designed to secure digital content in both classical and post-quantum worlds, ensuring that image provenance remains verifiable even against adversaries with quantum capabilities. Our system combines lattice-based hash functions, post-quantum zk-SNARKs, and quantum-resistant digital signatures such as CRYSTALS-Dilithium. Unlike C2PA, which fails when images are modified or quantum attacks render its cryptography obsolete, Post-Quantum VerITAS provides a trustless, scalable, and quantum-secure solution. It enables real-time verification of images even after edits like cropping, resizing, or blurring, without requiring reliance on centralized authorities. In this talk, we will break down the cryptographic foundations of Post-Quantum VerITAS, demonstrate