Intelligent traffic light safety dynamic regulating and controlling method based on alliance block chain technology
A technology for intelligent traffic and traffic signals, applied in the field of ElGamal encryption and data security verification, which can solve the problems of redundancy, private key network congestion data, etc.
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Embodiment 1
[0096] Embodiment 1: The vehicle-mounted unit sends information related to road conditions for the traffic department to safely regulate and control signal lights. which is Figure 5 The corresponding steps are as follows:
[0097] (1) On-board unit OBU i Request to join group, OBU i to RSU i send join request
[0098] (2)RSU i Verify the OBU first i Identity, if OBU i As a legal vehicle-mounted unit, OBU is allowed i Join the group and become a group member, submit to OBU i send Otherwise the agreement is terminated. RSU i Use the received public keys of s group members to calculate using the Chinese remainder theorem where Q i Q' i ≡1(modq i ), i=1, 2,..., s, publish D.
[0099] (3) On-board unit OBU i Using the encryption parameters of the TS of the transportation department (g TS ,λ TS ) encrypted traffic information Including the location of the vehicle, whether the road is congested, and the type of vehicle. Encrypted traffic ciphertext On-boa...
Embodiment 2
[0111] Embodiment 2: The specific implementation process of obtaining real-time road conditions by the vehicle-mounted unit. which is Image 6 The corresponding steps are as follows:
[0112] (1)OBU i The process of joining a group and becoming a group member is the same as steps (1)-(2) in Embodiment 1.
[0113] (2) On-board unit OBU i Want to know more about Roadside Units (RSUs) j Road condition information of a road section within the range, OBU i Use RSUs j encryption parameters for Encrypt service request information, including road congestion, traffic accidents, etc. After encryption, the service request ciphertext is obtained On-board unit OBU i Use group member private key calculate
[0114] (3) On-board unit OBU i to RSU i Send service request message Where T represents the current time, which can be used to prevent replay attacks.
[0115] (4) On-board unit OBU i Pay the reputation value to the smart contract to prevent false requests. If the v...
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