C2PA 'Verified Camera' Authenticity Scheme Falls Apart Under Scrutiny
C2PA is the industry standard meant to let cameras cryptographically sign photos at the moment of capture, so viewers can later verify an image hasn't been faked or manipulated. It's being pitched as a defense against AI-generated fakery by proving a photo came from a real device pointed at a real scene.
A researcher digging into Android implementations found that this 'hardware root of trust' is far shakier than advertised. By intercepting and manipulating data before it gets signed, or extracting keys from the software layer, it's possible to produce images that carry a valid C2PA signature despite being tampered with or entirely synthetic. The blog post walks through practical attacks that undermine the core promise of the standard on at least some real-world devices.
The findings don't kill C2PA outright, but they highlight the gap between marketing claims of 'unforgeable proof' and what current implementations actually deliver.