Any document nowadays is born digitally on a computer, in order to ensure integrity and authenticity it is sufficient to digitally sign it. As long as the document remains digital assurance of integrity and authenticity remains the same, but if it should be printed SecurePaper™ allows to embed / save the digital document, digitally signed, in a paper document / printed, making it possible to extend the concept of digital trust of a digitally signed document to a paper document.
The SecurePaper™documents are produced by a dedicated server that performs all the steps of preparing the document, compression, signature, and glyphs application to the page. The securised documents can be sent via email, posted on a website, stored on a USB flash drive or, simply, printed on paper.
SecurePaper™ is a software that permits to compare automatically any document (both in paper or digital format), showing if there are any potential changes in the data therefore showing their integrity.
It is made up of two applications:
1: Writer which allows to produce the SecurePaper document
2: Viewer which is the reader for the documents which also allows the automatic comparison and shows the discrepancies
PDF document
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Glyphs (nowadays DataMatrix)
At the moment, SecurePaper™ uses the DataMatrix bar codes, which have been chosen after a long series of tests for being the most resistant and have the highest capacity in term of bytes that can be stored.
This software (which is the “core” of SecurePaper™) allows to verify and compare any digital or paper document made with the SecurePaper™ technology.
The Viewer, after being installed, lets you verify automatically the file or the scanned paper document, checking first of all the authenticity of the digital signature and then showing all the possible differences found between the original document and the support one.
The information contained in the Glyphs allow the verification, with respect to original document, without internet access.
In this case the Glyphs contain all the elements that make possible the verification by secure on line accessing to original document.
In this case, we add to the " Controlled Copy" one QR Code. The QR Code is decoded by special SecurePaper App (for iPhone, iPad and Android).
