| Summary: | 博士 === 國立成功大學 === 工程科學系碩博士班 === 98 === The NICB (National Insurance Crime Bureau) of the United States has reported that more than one million cars were stolen in 2008. Besides being resold as a whole car, stolen cars are often disassembled for components to resell. The valuable parts, like the airbag, audio and video equipment are the most popular among thieves. How to prevent such electronic devices from being stolen and resold is the aim of this research.
A new idea is proposed in this work, that electronic devices should have the capability to check if their working environment is legal and thus to decide whether they will function or not. A security module is inside each electronic device and integrated with the power and functional units. The device can authenticate with a specific device to judge the security of the in-vehicle environment via the security module. Besides such anti-theft devices, the car and the user’s identity and an Authorized Center are added, which can complete the proposed in-vehicle anti-theft environment.
This research proposes a three-tier Trinitarian model that integrates the electronic devices, the car PC and the use’s identity and describes the relations between. We implemented an in-Vehicle Anti-Theft Environment (iVATE) to demonstrate the model. The environment provides device identification, self checking for anti-theft protection and the user authentication based. It can verify the Authorized Center (the Car PC) to check the in-vehicle environment, and then the center serves as the agent of the environment to verify the user’s identity. There are two authentication schemes: the Anti-Theft Device Authentication Scheme and the User Authentication Scheme. This research also defines the car management system for the key management and key distribution between the manufacturer, the dealer, the devices and the user. The proposed iVATE can protect against known key attacks, replay attacks and insider attacks. The performance of each process requires about 0.5 second.
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