Vulnerabilities in Car Key Fobs

 Car Key fobs transmit a one-time use code (known as a rolling code) to authenticate the unlock/lock commands of a car, but how secure are these protocols? We analyzed the packets sent out by car key fobs to decipher the commands being sent and their security. We discovered patterns in consecutive signals, and a noticeable difference between the unlock and lock command, along with the potential of encrypted information likely being stored within the signal's payload.