Method and system for behavior-based authentication of a user

A system for behaviour-based authentication of a current user to a mobile, portable communication system, which has at least one sensor for capturing gross-motor measurement data, a gross-motor classification module, a processor and in internal memory,

• wherein the sensor is designed to capture the gross-motor measurement data of a gross-motor movement of the current user of the mobile portable communication system,
• wherein the gross-motor classification module is trained for classification of the gross-motor measurement data and is trained for recognition of the gross-motor movement of a registered user, wherein the gross-motor classification module is executed by the processor of the mobile portable communication system,
• wherein the system for behaviour-based authentication of the current user to the mobile, portable communication system performs the following method steps:
• repeated execution of the steps:
• capture of the gross-motor measurement data by the at least one sensor of the mobile, portable communication system,
• input of the gross-motor measurement data into the gross-motor classification module,
• generation of a first classification result by the gross-motor classification module, detailing whether the current user is a user registered in the mobile, portable communication system,
• storage of the first classification result in the memory of the mobile, portable communication system, and
• access to the memory of the mobile, portable communication system of in order to read out at least one of the stored first classification results from the memory,
• evaluation of the at least one read-out classification result in accordance with a specified checking criterion,
• generation of an authentication signal if the checking criterion is met, wherein the authentication signal signals a successful authentication of the user.