Data exchange system with a check of the apparatus for its authentication status
AssigneeGAO Gesellschaft fur Automation und Organisation mbH
InventorsAlbert Pichlmaier, Gisela Meister
Life of this patent
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Abstract
The invention relates to a data exchange system wherein the entitlement of a user is detected by a check of a personal feature inputted by the user, comprising a data carrier associated with the user, an apparatus communicating with the data carrier and a display unit. The data of the data carrier contain a data word known only to the user that, before he is asked to input his personal feature, is transmitted to the apparatus in an encoded form and displayed to the user for comparison after being decoded by a cryptographic unit contained in the apparatus and characterizing the authenticity of the apparatus.
Claims10
A data exchange system wherein the entitlement of an entitled user is detected by a check of a personal feature inputted by the entitled user, comprising a data carrier associated with the entitled user, an apparatus communicating with the data carrier and a display unit, characterized in that a data word is stored on the data carrier in encoded form, said data word is assigned and known to the entitled user and is transmitted to the apparatus in an encoded form and displayed to the entitled user for comparison after being decoded by a cryptographic unit contained in the apparatus and characterizing the authenticity of the apparatus.
Dependencies are inferred from the claim text.