Method for the processing by a processing entity (EnT) and a verification device, of an authorization for implementing a service and/or access an item, the method being characterized in that it comprises: - a step of reception, by the processing entity (EnT), from a requesting device, of a payment request (Rq) for implementing a service and/or accessing an item; - a step of searching, processing entity (EnT), for an indicator of dependency (InD) from at least one piece of data of said request (Rq) for implementing; - when an indicator of dependency (InD) is present, a step for obtaining an authorization from the verification device to implement said service and/or access said item comprising: - obtaining, by the processing entity, of a piece of data representing a verification device from which authorization must be requested; - a transmission, to the verification device, of a request for setting up a secured link; - a setting up of a secured link between the processing entity and a trusted execution environment of the verification device; - transmitting a notification (Notif) to the verification device, thru said secured link, accompanied by a request for entry of an identification code, - an implementation of a secured display module and a secured entry module; - an encryption of the entered identification code by the verification device; - a transmission, by said verification device, of the encrypted identification code to the processing entity; - a verification, by the processing entity, of the validity of the entered PIN code by the processing entity; and - a decision to issue an authorization (Aut) according to the validity of the entered identification code or an absence of data received from the verification device - a step of reception, by the processing entity (EnT), from a requesting device, of a payment request (Rq) for implementing a service and/or accessing an item; - a step of searching, processing entity (EnT), for an indicator of dependency (InD) from at least one piece of data of said request (Rq) for implementing; - when an indicator of dependency (InD) is present, a step for obtaining an authorization from the verification device to implement said service and/or access said item comprising: - obtaining, by the processing entity, of a piece of data representing a verification device from which authorization must be requested; - a transmission, to the verification device, of a request for setting up a secured link; - a setting up of a secured link between the processing entity and a trusted execution environment of the verification device; - transmitting a notification (Notif) to the verification device, thru said secured link, accompanied by a request for entry of an identification code, - an implementation of a secured display module and a secured entry module; - an encryption of the entered identification code by the verification device; - a transmission, by said verification device, of the encrypted identification code to the processing entity; - a verification, by the processing entity, of the validity of the entered PIN code by the processing entity; and - a decision to issue an authorization (Aut) according to the validity of the entered identification code or an absence of data received from the verification device - obtaining, by the processing entity, of a piece of data representing a verification device from which authorization must be requested; - a transmission, to the verification device, of a request for setting up a secured link; - a setting up of a secured link between the processing entity and a trusted execution environment of the verification device; - transmitting a notification (Notif) to the verification device, thru said secured link, accompanied by a request for entry of an identification code, - an implementation of a secured display module and a secured entry module; - an encryption of the entered identification code by the verification device; - a transmission, by said verification device, of the encrypted identification code to the processing entity; - a verification, by the processing entity, of the validity of the entered PIN code by the processing entity; and - a decision to issue an authorization (Aut) according to the validity of the entered identification code or an absence of data received from the verification device