Bundesdruckerei Gmbh

Martin Schroeder

Frank Morgner

The disclosure relates to a method for authenticating a user to a machine: generating a challenge by the machine, generating a first pattern, in which the challenge is coded, by the machine, displaying the first pattern on a display device of the machine, optically recording the first pattern by a user device, decoding the first pattern to receive the challenge by the user device, generating a response to the challenge by the user device, generating a second pattern, in which the response is coded, by the user device, displaying the second pattern on a display device of the user device, optically recording the second pattern by the machine, decoding the second pattern to receive the response by the machine, checking the correctness of the response by the machine, and, on the condition that the response is correct, fulfilling a function by the machine.

Growing community of inventors

Berlin, Germany

Martin Schroeder