Authentication pin collision prevention for autonomous vehicles

A vehicle authentication system, comprising:

• a Body Control Module (BCM);
• and
• an interface processor disposed in communication with the BCM;
• and
• an interface memory for storing executable instructions, the interface processor configured to execute the instructions to:
• receive a first input indicative of a user selection of a user identifier;
• send a PIN index associated with the user identifier to a vehicle body control module (BCM);
• receive, responsive to sending the PIN index, a salt value and a nonce associated with the PIN index;
• generate a first hash result by hashing a user PIN using the salt value and the nonce, and sending the first hash result to the BCM;
• and
• authenticate the user based on the first hash result.

A non-transitory computer-readable storage medium in a vehicle control system comprising a Door Access Panel (DAP) controller and a body control module (BCM), the computer-readable storage medium having instructions stored thereupon which, when executed by a processor, cause the processor to:

• receive a first input indicative of a user selection of a user identifier;
• send a PIN index associated with the user identifier to a vehicle body control module (BCM);
• receive, responsive to sending the PIN index, a salt value and a nonce associated with the PIN index;
• generate a first hash result by hashing a user PIN using the salt value and the nonce, and sending the first hash result to the BCM;
• and
• authenticate the user based on the first hash result.

A method for establishing a user account for authenticating a user in a vehicle comprising:

• receiving a user identifier via an interface device;
• receiving a user input comprising a user PIN;
• determining that the user PIN does not include two or more spatially orthogonally adjacent digits;
• and
• updating a PIN index, the updating comprising associating the user identifier with the user PIN.