METHOD FOR VERIFYING THE AUTHENTICITY OF A SENSITIVE PRODUCT

The invention relates to a method for verifying the authenticity of a sensitive product comprising an identifier which comprises: - acquiring (1100) a test image of said product, - optically recognizing (1110) the identifier, - extracting (1120) an optical print of the test image, - dispatching (1130) to a remote database comprising a set of original images at least one from among: o said characters of the identifier recognized, o the optical print of the test image, and o said test image, - identifying (1140) in the base at least one original image corresponding to said test image, - extracting (1000) an optical print of the corresponding original image, and - comparing (1050) the optical print of the test image and the optical print of the original image; the extraction (1000, 1120) comprising at least one of the steps from among: - a step (1020) of calculating local collisions, and - a step (1030) of metrology.