[Cryptography] Crptographic ticket tape (fake news)

[Alfie John]

On 3 Jun 2019, at 21:22, Danny Muizebelt <dannym at packetloss.at> wrote:
> 
> In securing original footage from tampering would a ticker tape in the background be viable? The tape would be timestamps encrypted with the producer's private key.

If a video can be played it can also be manipulated. This is the same reason why DRM for audio and video is futile - nothing is stopping anyone from manipulating the end product, stripping the DRM, optionally adding their own (in your example a modified ticker tape), and then redistributing.

Alfie

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Alfie John
https://www.alfie.wtf