Giesecke & Devrient Gmbh

Gao Gesellschaft Fur Automation Und Organisation Mbh

Michael Lamla

Michael Baldischweiler

Franz Weikmann

Wolfgang Rankl

Wolfgang Effing

Hermann Drexler

Harald Vater

Martin Seysen

Jurgen Moll

Torsten Karch

Nikola Mamuzic

Klaus Butz

Arvid Wirén

Sabine Weicker

The invention relates to a method for testing the authenticity of a data carrier () and/or an external device () which enters into data exchange with the data carrier (). According to the invention, the data carrier () and the external device () are each equipped with a special additional apparatus () for generating and/or testing authenticity data. Data transmission between the data carrier () and the external device () as required for authenticity testing is performed at least partly via a special transmission channel (B). The transmission channel (B) for transmitting authenticity data is separated physically or logically from a transmission channel (A) for transmitting standard data so that there is no mutual interference of data transmission via the two transmission channels (A, B). In authenticity testing, the additional apparatuses for generating and/or testing authenticity data () of the data carrier () and external device () and optionally also the transmission channel (B) for authenticity data must meet special demands which cannot be met by conventional designs. The transmission channel (B) for transmitting authenticity data is activable during the total time period between activation and deactivation of the data carrier () so that authenticity testing can be performed anytime.

Data medium authentication method

The invention relates to a method for testing the authenticity of a data carrier with an integrated circuit and is characterized in that a material is provided in an area of the integrated circuit which is excited to luminesce for example by an electromagnetic radiation or by an electric field, the electromagnetic radiation emitted by the material being measured and evaluated for determining the authenticity of the data carrier.

Method of checking authenticity of a data carrier

System for testing the authenticity of a data carrier

Method for testing the authenticity of a data carrier

Data carrier having an electronic module

Growing community of inventors

Munich, Germany

Michael Lamla