A camera that authenticates the timestamp and contents of an image is great. But it’s still limited. If I take that camera, mount it on a tripod, and take a perfect photograph of a poster of Van Gogh’s Starry Night, the resulting image will be yet another one of millions of similar copies, only with a digital signature proving that it was a newly created image today, in 2024.
Authenticating what the camera sensor sees is only part of the problem, when the camera can be shown fake stuff, too. Special effects have been around for decades, and practical effects are even older.
You can’t just use an audio file by itself. It has to come from somewhere.
The courts already have a system in place that if someone seeks to introduce a screenshot of a text message, or a printout of a webpage, or a VHS tape with video, or just a plain audio file, needs to be able to introduce that as evidence, with someone who testifies that it is real and that it is accurate, with an opportunity for others to question and even investigate where it came from and how it was made/stored/copied.
If I just show up to a car accident case with an audio recording that I claim is the other driver admitting that he forgot to look before turning, that audio is gonna do basically nothing unless and until I show that I had a reason to be making that recording while talking to him, why I didn’t give it to the police who wrote the accident report that day, etc. And even then, the other driver can say “that’s not me and I don’t know what you think that recording is” and we’re still back to a credibility problem.
We didn’t need AI to do impressions of people. This has always been a problem, or a non-problem, in evidence.