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submitted 3 months ago by iuvi@lemmy.ml to c/opensource@lemmy.ml

Hi!

Curious, if i there tool\site with wich i could verify for example 1 of 100 physically printed books?

Each one book - unique public key (100 books = 100 keys, printed on backside of it) wich could be verify by one private key

It just and idea in mind, but, maybe there any ready solution? Many public keys chain-linked with one master key - are just for example

Thank you

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[–] BorgDrone@feddit.nl 5 points 3 months ago

I don’t understand how you expect the verification of a physical book to work. You’d have to scan/OCR the entire book to verify the signature.

Alternatively you could do a hash/signature per page to make verification of a single page easier.

Many public keys chain-linked with one master key - are just for example

Have a look at Merkle trees.