[ExI] Deep Fakes

[Ben Zaiboc]

On 04/10/2025 04:00, John K Clark wrote:
>
>
>   Bottom line
>
> Yes, you can make video files that are *cryptographically 
> provably* the exact bytes a camera produced at a claimed time and 
> place — provided the camera’s hardware, firmware, and the ecosystem 
> (PKI, witnesses, anti-spoofing) are trustworthy. That system raises 
> the bar substantially against deepfakes and post-capture edits, but it 
> is *not* a perfect silver bullet: attackers who compromise keys, 
> firmware, or the capture process itself (staging, spoofing) can still 
> produce convincing fakes. Strong system design (secure hardware, 
> external witnesses, anti-spoofing, and audited procedures) is required 
> to make such proofs robust in practice.
>
> ------------------------------------------------------------------------


So would it be fair to say that it's possible, but not really practical 
for most purposes, but would actually be extremely useful to certain 
regimes interested in 'proving' that their propaganda is in fact true, 
and in plausibly discrediting services like BBC Verify, etc.?

-- 
Ben
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