Abstract: A method for transmitting data, implemented within a secured execution environment of an electronic device, called a trusted component, which is coupled to a cash register. The method includes transmitting, by using a payment terminal, a piece of data intended for cash register. The method includes, prior to transmitting the data: receiving, from the cash register, a first request for setting up a first secured communications channel with the trusted component; setting up the first secured communications channel by using at least one piece of data contained in the first request; receiving, from the payment terminal, a second request for setting up a second secured communications channel with the trusted component; and setting up the second secured communications channel with the payment terminal by using at least one piece of data of the second request.

Abstract: A method for processing a product or service purchase order, which is implemented within a voice-based electronic processing device including a capturing component for capturing voice orders and a sound broadcast component. The method includes: obtaining, using the capturing component, at least one item of data representing a voice-based purchase order, the purchase order emanating from the voice of a user and relating to the purchase of at least one product or service; authenticating at least one voiceprint representing the user based on the item of data representative of the purchase order; and if the at least one voiceprint representative of the user corresponds to a user authorized to make purchases using the voice-controlled electronic device, transmitting, to an electronic processing device to which the voice-controlled electronic device is connected, a request to obtain purchase authorization, the request including at least one item of data representing the payment transaction.

Abstract: A method for securing entry of sensitive data, the method being implemented by a communications terminal having a processor, an entry touchpad screen on which the entry of sensitive data is carried out. Such a method includes: displaying a random keypad for the entry of a confidential code; receiving, by the processor, a reference pad display signal; and displaying the reference keypad, the reference keypad being inactive.

Abstract: A method for securing entry of sensitive data, the method being implemented by a communications terminal having a processor, an entry touchpad screen on which the entry of sensitive data is carried out. Such a method includes: displaying a random keypad for the entry of a confidential code; receiving, by the processor, a reference pad display signal; and displaying the reference keypad, the reference keypad being inactive.

Abstract: A method for transmitting data, implemented within a secured execution environment of an electronic device, called a trusted component, which is coupled to a cash register. The method includes transmitting, by using a payment terminal, a piece of data intended for cash register. The method includes, prior to transmitting the data: receiving, from the cash register, a first request for setting up a first secured communications channel with the trusted component; setting up the first secured communications channel by using at least one piece of data contained in the first request; receiving, from the payment terminal, a second request for setting up a second secured communications channel with the trusted component; and setting up the second secured communications channel with the payment terminal by using at least one piece of data of the second request.