4 ms·
Reverse of the logic presented could be used to inject typos into a document per distributed copy of it to help identify anyone sharing documents online; basica
by nxzero 10y ago
Reverse of the logic presented could be used to inject typos into a document per distributed copy of it to help identify anyone sharing documents online; basically each copy is unique to allow for attribution. Hash of each document could even be given to a third party and archived to provide if needed independent verification of the claim that the document and the document itself could be encrypted, loaded to another third party to log the IP and finger print of the download provide another independent verification of the exchange.
- ksk 10y agoWhat is the application where typos in a document are acceptable?
- jacalata 10y agoPre-publish review copies of a novel
- dsr_ 10y agoClassified reports. This technique is called the Canary Trap, with the name (but not the technique) coined by Tom Clancy. https://en.wikipedia.org/wiki/Canary_trap https://en.wikipedia.org/wiki/Canary_trap
- ksk 10y agoOkay, If you broaden it enough I'm sure you can find some use for almost everything. I was thinking of more of a mainstream application.
- deleted 10y ago[deleted]
- robryk 10y agoFor that purpose you'd want to add typos that would be "corrected" into the wrong word by a typical spellchecker or that are actually correct, but atypical in context, words. Otherwise passing the document through a spellchecker would remove the watermark.
- ksk 10y agoHeh, perhaps an easier way would be to have unique phrases in each document. Typos risk exposing you because they will stand out to the person who is reading the document - assuming such a person is more discerning than most, given that they're accessing classified docs.