VEHICLE SECURITY SYSTEM
First Claim
1. A vehicle security system comprising:
- a reception device that is mounted on a vehicle; and
a transmission device that remotely operates the vehicle, whereinthe transmission device includesan encryption section that encrypts identification information that identifies the transmission device with a first encryption key, anda transmission section that transmits to the reception device instruction information that includes the identification information encrypted and gives an operation instruction to the reception device, andthe reception device includesa FeRAM that stores a second encryption key to pair with the first encryption key, wherein the second encryption key is erased from the FeRAM when the second encryption key is read out from the FeRAM,a reception section that receives the instruction information transmitted from the transmission device,a decoding section that decodes the identification information received, which is encrypted with the first encryption key and included in the instruction information received, with the second encryption key that is supposed to be stored in the FeRAM, anda judgment section that judges based on the decoded identification information as to whether the transmission device matches with the reception device.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle security system includes a reception device that is mounted on a vehicle, and a transmission device that remotely operates the vehicle. The transmission device includes an encryption section that encrypts identification information that identifies the transmission device with a first encryption key, and a transmission section that transmits to the reception device instruction information that includes the identification information encrypted and gives an operation instruction to the reception device. The reception device includes a FeRAM that stores a second encryption key to pair with the first encryption key, wherein the second encryption key is erased from the FeRAM when the second encryption key is read out from the FeRAM, a reception section that receives the instruction information transmitted from the transmission device, a decoding section that decodes the identification information received, which is encrypted with the first encryption key and included in the received instruction information, with the second encryption key that is supposed to be stored in the FeRAM, and a judgment section that judges based on the decoded identification information as to whether the transmission device matches with the reception device.
-
Citations
5 Claims
-
1. A vehicle security system comprising:
-
a reception device that is mounted on a vehicle; and a transmission device that remotely operates the vehicle, wherein the transmission device includes an encryption section that encrypts identification information that identifies the transmission device with a first encryption key, and a transmission section that transmits to the reception device instruction information that includes the identification information encrypted and gives an operation instruction to the reception device, and the reception device includes a FeRAM that stores a second encryption key to pair with the first encryption key, wherein the second encryption key is erased from the FeRAM when the second encryption key is read out from the FeRAM, a reception section that receives the instruction information transmitted from the transmission device, a decoding section that decodes the identification information received, which is encrypted with the first encryption key and included in the instruction information received, with the second encryption key that is supposed to be stored in the FeRAM, and a judgment section that judges based on the decoded identification information as to whether the transmission device matches with the reception device. - View Dependent Claims (2, 3, 4)
-
-
5. A vehicle security system comprising:
-
a reception device that is mounted on a vehicle; and an immobilizer key to be inserted in the vehicle, wherein the immobilizer key includes a storage section that stores encrypted identification information for identifying the immobilizer key, and the reception device includes a FeRAM that stores an encryption key, wherein the encryption key is erased from the FeRAM when the encryption key is read out from the FeRAM, an acquiring section that acquires the encrypted identification information from the storage section of the immobilizer key, a decoding section that decodes the encrypted identification information acquired by using the encryption key that is supposed to be stored in the FeRAM, and a judgment section that judges based on the decoded identification information as to whether the immobilizer key matches with the reception device.
-
Specification