Remote video source authentication protocol

A portable device-to-vehicle interface system comprising:

• a portable device including executable slave software applications;
• a vehicle interface system including a human machine interface for displaying video having a graphical user interface for execution and control of slave software applications stored on the portable device, the video displayed on the human machine interface being transmitted from the portable device;
• a first communication channel for exchanging data communications between the portable device and the vehicle interface system;
• and
• a second communication channel configured to transmit video from the portable device to the vehicle interface system;
• wherein a mutual authentication between the portable device and the vehicle interface system is performed over the first communication channel, wherein the portable device is identified as an entity authorized to execute slave software applications via the vehicle interface system, wherein communication over the second communication channel for transmitting video over the second communication channel is initiated by one of the portable communication device or vehicle interface system, wherein the portable device is authenticated over the second communication channel for verifying that the portable device is the authorized entity transmitting the video over the second communication channel, wherein the portable device transmits video of an approved slave software application to the vehicle interface system over the second communication channel conditioned upon a successful authentication of the portable device over the second communication channel, and wherein after initiating video transmission over the second communication channel, authentication is initiated at various time intervals for re-authenticating that the portable device transmitting the video is authorized to transmit video over the second communication channel.