Abstract: A module for authenticating a person is characterized in that it comprises: a processing circuit (102) comprising an authentication memory (104), a sensor (106) of a physiological parameter of the wearer, a means (108) for inactivating the circuit (202) responsive to the sensor (106) and capable of inactivating the circuit (102) when said sensor (106) does not receive an expected physiological signal, a circuit (110) for wireless nearfield communications with a base (20), capable of communicating with said base (20) according to a protocol involving biometric data distinct from said physiological parameter and intended to be received by the module (10), and means (112) for transmitting presence validation signals for said base (20) and or for receiving presence validation signals, distinct from said communications circuit (110).

Abstract: A module for authenticating a person is characterized in that it comprises: a processing circuit (102) comprising an authentication memory (104), a sensor (106) of a physiological parameter of the wearer, a means (108) for inactivating the circuit (202) responsive to the sensor (106) and capable of inactivating the circuit (102) when said sensor (106) does not receive an expected physiological signal, a circuit (110) for wireless nearfield communications with a base (20), capable of communicating with said base (20) according to a protocol involving biometric data distinct from said physiological parameter and intended to be received by the module (10), and means (112) for transmitting presence validation signals for said base (20) and or for receiving presence validation signals, distinct from said communications circuit (110).