Abstract: Acquisition of a biometric template from a biometric device wherein a biometric image information is captured from said biometric device, wherein when an anti-spoofing detection method is successful, extracting said biometric template from the captured biometric image information and computing a digital integrity at least over a part of a predefined message, receiving by a biometric matching system said biometric template and said digital integrity, and setting up an authentication mechanism of the biometric device through the received digital integrity and that said biometric template by said biometric matching system only when the output of the authentication mechanism is successful.

Abstract: The invention relates to a method for authorizing a communication with a portable electronic device, such as access to at least one memory area. The portable electronic device has a display for presenting an item of information visible to the outside and an interface for communication with the outside of the portable electronic device. The item of information is at least in part taken into account by the portable electronic device to authorize the communication. The method includes optically reading of the item of information outside the portable electronic device. The method also includes a step of varying the item of information, the step of varying causing the item of information, termed the variable item of information, to vary at least in part. The invention also relates to the portable electronic device, and the system comprising the portable electronic device and an electronic communication or reading device.

Abstract: The invention relates to a method for authorizing a communication with a portable electronic device, such as access to at least one memory area. The portable electronic device has a display for presenting an item of information visible to the outside and an interface for communication with the outside of the portable electronic device. The item of information is at least in part taken into account by the portable electronic device in order to authorize the communication. The method includes a step of optical reading of the item of information outside the portable electronic device. The method is distinguished in that it also includes a step of varying the item of information, the step of varying causing the item of information, termed the variable item of information, to vary at least in part. The invention also relates to the portable electronic device, and the system comprising the portable electronic device and an electronic communication or reading device.