Techniques to lock and unlock displays of vehicle entertainment systems for commercial passenger vehicles

A method for securing an in-vehicle entertainment (IVE) display, implemented by one or more processors coupled to the IVE display, the method comprising:

• receiving, from a mobile device, a first message comprising a first digitally signed payload and a lock command to instruct the IVE display to lock itself;
• and
• transmitting, to the IVE display, the lock command,
• wherein the first digitally signed payload is a first output of a first mathematical computation performed on a payload with a secret key, and
• wherein the IVE display is configured to lock in response to a reception of the lock command.

A method of securing an in-vehicle entertainment (IVE) display, implemented by one or more processors coupled to the IVE display, the method comprising:

• receiving, from a near field communication (NFC) device, a first message comprising a first digitally signed payload and a lock command to instruct the IVE display to lock itself;
• transmitting a first instruction to cause the IVE display to lock in response to a reception of the lock command;
• receiving, from the NFC device and after the IVE display is locked, a second message comprising a second digitally signed payload and an unlock command to instruct the IVE display to unlock itself;
• and
• transmitting a second instruction to cause the IVE display to unlock in response to (a) a reception of an unlock command and (b) a determination that the second digitally signed payload in the second message matches the first digitally signed payload in the first message.