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Earlier quoted context omitted.
There used to be - probably still are - cameras that would digitally sign all their images. Used in crime scenes? Maybe we will end up seeing wider adoption of this, despite the privacy implications. Hackers attention then will focus (once again) on the certificate supply chain and crypto hardware.
I worked for a company that made these. We sold expensive software to the FBI. Took about six months for someone to crack the hash.
Earlier quoted context omitted.
I worked for a company that made these. We sold expensive software to the FBI. Took about six months for someone to crack the hash.
What about a system that saves in some way the hash in a Blockchain, and if you, eg, XOR the hash of the video with the hash of the previous block you will "certainly" know that the video was created between the previous block and the block where the hash is saved in. That's a starting point.
i do wonder, that in the age where we have image and video creation out of the bag, whether or not this will result in whole classes of evidence becoming completely unreliable.
I wonder how many people have been unjustly imprisoned between planted evidence, made up evidence, and illegal parallel construction…
i do wonder, that in the age where we have image and video creation out of the bag, whether or not this will result in whole classes of evidence becoming completely unreliable.
You should see what people were capable of in the darkroom, let alone before all this. You could always manipulate imagery ever since there was imagery to manipulate.
Earlier quoted context omitted.
I worked for a company that made these. We sold expensive software to the FBI. Took about six months for someone to crack the hash.
What about a system that saves in some way the hash in a Blockchain, and if you, eg, XOR the hash of the video with the hash of the previous block you will "certainly" know that the video was created between the previous block and the block where the hash is saved in. That's a starting point.
I wonder how many people have been unjustly imprisoned between planted evidence, made up evidence, and illegal parallel construction…
Earlier quoted context omitted.
I worked for a company that made these. We sold expensive software to the FBI. Took about six months for someone to crack the hash.
What about a system that saves in some way the hash in a Blockchain, and if you, eg, XOR the hash of the video with the hash of the previous block you will "certainly" know that the video was created between the previous block and the block where the hash is saved in. That's a starting point.
i do wonder, that in the age where we have image and video creation out of the bag, whether or not this will result in whole classes of evidence becoming completely unreliable.
Surely it’s just a matter of time.
Earlier quoted context omitted.
I imagine in this age of blockchains you could embed into a media file a signature that proved it was no older than the timestamp of when it occurred, the digital equivalent of a hostage-proof-of-life photo with a recent newspaper But I don't know of a cryptographic mechanism to ensure that a digital image is not more recent than a particular time
Interesting, There aren't any newspapers left in my country, neither printed nor not printed. The closest you can find is the weekly advertising booklet here and there. Which is irrelevant now because a computer can either stich new content to an old picture, or entirely producing a custom picture. That would be a use case for a block chain. But I still don't understand how you are securing the integrity of the valid…
[0] https://csrc.nist.gov/projects/interoperable-randomness-beac...