A drive activation control unit in a control apparatus of a motorcycle controls a drive apparatus. An identification signal transmission unit intermittently transmits an identification signal without any operation by an operator who carries a portable terminal. A response signal reception unit receives a response signal transmitted from the portable terminal in response to the identification signal. In response to reception of the response signal, a request signal transmission unit makes a request of the portable terminal for key information. The key-information signal reception unit receives a key information signal including the key information. A drive-activation permission determination unit determines whether or not to permit activation of a drive control unit based on the key information. When the drive-activation permission determination unit permits activation of a drive control unit, the drive activation control unit activates the drive control unit without any operation by an operator who carries the portable terminal.

A terminal performs communication with an in-vehicle device to control a vehicle. The terminal includes a controller configured to switch and control an operation mode of the terminal to at least a predetermined first mode or a predetermined second mode, a reception unit configured to receive a first signal including a switching request of the operation mode from the in-vehicle device, a generation unit configured to update a predetermined value with the reception of the first signal and generate a second signal based on the updated predetermined value, and a transmission unit configured to transmit the second signal to the in-vehicle device. When a third signal including a command for instructing switching of the operation mode received by the reception unit is a response to the second signal, the controller switches the operation mode from the first to the second mode or from the second to the first mode.

A method is provided for authenticating a transceiver in a keyless entry system for a vehicle. The method uses a collision avoidance radar system on the vehicle for authenticating a key fob radar transceiver. A lower power radar signal is transmitted from the vehicle. The lower power radar signal is transmitted below an ambient noise level to make the radar signal difficult for an attacker to detect. The key fob transceiver is then authenticated as being a legitimate transceiver for accessing the vehicle using the low power radar signal. A distance bounding scheme may be used to determine if the key fob is within a predetermined distance. Challenge/response communications may be used to authenticate that the key fob is the legitimate key fob.

A passive keyless entry (PKE) system is disclosed. The PKE includes an in-vehicle apparatus. The in-vehicle apparatus includes a control unit that is configured to measure magnetic field and compute at least one angle between two projections of the magnetic field. When the measured angle is lower than a threshold value, an authorization signal is prevented.

A vehicle may include: a conductive coil; and an authenticator configured to be turned on in response to receiving a current and to request an encryption key from a remote control apparatus. An induction current may be induced in the coil when a magnetic body approaches the coil, and the authenticator may be further configured to be activated in response to receiving the induction current from the coil.

Disclosed are a communication method for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related services, and the like) on the basis of 5G communication technology and IoT-related technologies. According to various embodiments of the disclosure, a method for authenticating a smart key of an electronic device comprises the steps of: transmitting an authentication request in a predetermined cycle; receiving authentication responses from a smart key device; determining whether there is a relay attack on the basis of the interval of the received authentication responses; and authenticating the smart key device when it is determined that there is no relay attack. However, the disclosure is not delimited to the embodiment above, and other embodiments are possible.

A transit request is initiated, which requests dispatch of a vehicle to a location of the electronic device. Information, including authentication information, is received and a communication channel is established with the vehicle.

A non-transitory computer readable storage medium storing a program for causing a computer to function as following units of a communication apparatus which includes a communication device that communicates with an on-board apparatus installed in a vehicle: an obtaining unit configured to obtain a predetermined operation performed by a user; and a control unit configured to control the communication device to transmit an unlock signal for unlocking a door of the vehicle to the on-board apparatus, wherein when the predetermined operation is obtained before communication between the communication device and the on-board apparatus becomes possible, the control unit causes the communication device to transmit the unlock signal in response to an occurrence in which communication between the communication device and the on-board apparatus has become possible.

A transmitter of an on-vehicle device transmits a request signal from a first antenna, and transmits first measurement signals at different timings from the first antenna and a second antenna. The receiver receives a first response signal including information on transmission intensities of a second measurement signals to be transmitted from the first and second antennas. The transmitter further transmits the second measurement signals at different timings from the first and second antennas. The second measurement signals have transmission intensities respectively set based on the information on transmission intensities included in the first response signal. The receiver receives a second response signal transmitted when a relationship between the reception intensities of the second measurement signals transmitted from the first and second antennas agrees with the information on the transmission intensities included in the first response signal.

A vehicle security system and an operating method thereof are provided. The operating method includes the following steps: A account binding procedure between a first mobile device and the vehicle is performed, such that a vehicle processing device of the vehicle obtains a main access token for the first mobile device to perform a first electronic unlocking procedure and a sub access token for a second mobile device to perform a second electronic unlocking procedure. The second mobile device performs the second electronic unlocking procedure according to the sub access token.