Abstract

A security document with a first security element, which includes a first item of visually recognizable and in particular machine-readable information, and a second security element, which includes a second item of in particular machine-readable information which can be used to verify the first item of information. A method for the authentication thereof is also described.

IPC Classes  ?

• G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
• B42D 25/305 - Associated digital information
• B42D 25/309 - Photographs
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/373 - Metallic materials
• G07D 7/01 - Testing electronic circuits therein
• G07D 7/004 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
• G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
• B42D 25/387 - Special inks absorbing or reflecting ultraviolet light
• B42D 25/324 - Reliefs
• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials
• B42D 25/369 - Magnetised or magnetisable materials
• B42D 25/313 - Fingerprints
• B42D 25/382 - Special inks absorbing or reflecting infrared light
• G06K 19/02 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
• G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips