METHODS FOR REDACTING AN ORIGINAL DOCUMENT OR VERIFYING THE AUTHENTICITY OF A FINAL DOCUMENT

摘要

The present invention concerns a method for redacting an original document consisting of a matrix of pixels each defined by a vector having at least one numerical value, the method comprising implementation by data processing means (11) of equipment (1), of steps of:(a) Determining a set of pixels of said matrix corresponding to one or more areas to be blacked-out from the original document;(b) Generating a final document corresponding to the original document in which the vectors defining the pixels of said selected set are replaced by an arbitrary vector;(c) Generating a zero-knowledge proof of the fact that the pixel matrixes of the original document and of the final document only differ via pixels belonging to said selected set.;The present invention also concerns a method for verifying the authenticity of a final document.