![]() ![]() The software “encrypts” e-books by mixing each byte of the text with a constant byte. “The $197 Ebook Pro e-book protection software is advertised as 100% burglarproof and claims a list of Fortune 500 companies as its customers. Surprisingly, many of it’s users seem to be scientific and technical journals.” FileOpen software, puts key information in the encrypted document, which is sort of like leaving your car with the keys in the ignition. “ FileOpen was chosen as an Adobe ‘security partner’, which leads me to wonder how closely Adobe examines the cryptography used by its partners. Dimitry Sklyarov, a cryptanalyst from Elcomsoft says: Some companies even provide FREE on-line PDF password removal programs – see FreeMyPDF.ĭon’t be fooled by companies that have been around for a while or are affiliated with big names. So if you are protecting a $6k bucks file and the crack costs $80 then you figure it out for yourself. Basically it means that they have found a way in, and for a small fee, so can anyone else. Go and check that password recovery expert companies like Elcomsoft (don’t list the program you are rendering in their ‘password recovery’ list. Are there published cracks for it, or is the implementation insecure? Think carefully about the tool that is used to render your PDF to the screen.
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