Now that we have a good understanding of computers, we know the importance of protecting connected devices from potential intrusions. In recent years, connected cars have evolved from providing reversing imaging systems and navigation systems to providing complex in-vehicle networks. Almost every important in-vehicle system is managed or controlled by a complex network of semiconductor chips, software and sensors, all of which work in unison to make our vehicles run smoothly, efficiently and comfortably. In addition, semiconductor chips are also the core of the increasingly popular infotainment system, which is also moving out of luxury cars and gradually entering the ranks of many entry-level models. Undoubtedly, the arrival of this technology is exciting. But it also sounded the alarm for futurists and technologists: they have realized that computers, smartphones, and other connected systems have reached critical mass levels, making them ideal targets for hackers. These devices open the in-vehicle system with mobile Wi-Fi networks, Bluetooth, USB and Near Field Communication (NFC) sensors, posing a risk of hacking and have become a hot topic in recent news. Analysts predict that by 2025, all new cars that were shipped out of the year will be fully networked, so it is not surprising that the automotive industry attaches great importance to the thorough implementation of various strict safety features in the car. Figure 1: Automotive semiconductors are booming. According to analysts, the number of chips used per car by 20,201 will be close to 1,000, compared to less than 100 in 2005. Ethernet is at the right time For the past 10 years, Ethernet has been the most popular and reliable network technology in the world, and has been successfully and safely deployed in a dynamic and ever-changing enterprise environment. Now, the inherent security features of Ethernet and the advent of a number of other technical standards can further enhance its security, which has spurred car manufacturers' strong interest in Ethernet. Ethernet is being increasingly deployed in in-vehicle networks due to its high bandwidth, cost-effectiveness, and ubiquitous use, as well as various specialized versions for automotive applications. Although the main use case of Ethernet in IT is a plug-and-play dynamic network, the in-vehicle network is generally static, so careful network design and configuration can be implemented to further secure network security. Ethernet uses a standard packet format that includes source and destination addresses, which provides the foundation for verification, isolation, and data integration. Since in-vehicle networks are known and predictable, their work can be strictly configured and constrained. Whether through static configuration or dynamic learning, Ethernet switches can use packet addresses for traffic isolation and filtering. In other words, Ethernet technology can be used to isolate different types of traffic on a shared physical network, ensuring that devices can only communicate with other devices within the domain name, fundamentally integrating infotainment systems with braking systems, steering systems, and engine controls. Mission-critical applications such as units (ECUs) are isolated. Automotive Ethernet is fully optimized for automotive applications, transforming the vehicle into a centralized, secure data center on wheels with proven compliance, performance and protection standards. Figure 2: As the backbone of a car's network, the inherent security features of a wired Ethernet connection help protect the in-vehicle network from malicious attacks, eavesdropping, and installation of unlicensed devices. Automotive Ethernet as the industry standard The OPEN Alliance Special Interest Group (SIG) is a non-profit, open industry consortium formed by automotive industry and technology providers at the end of 2011 to bring Ethernet-based network standards to in-vehicle network applications. Widely promoted. Since its inception, the membership of the Open Alliance has grown to more than 300. The Open Alliance has been working closely with the IEEE to drive further innovation and standards development. The IEEE standard compatible with the BroadR-Reach specification will be finalized as IEEE 100BASE-T1, and the new generation IEEE 1000 BASE-T1 technology is expected to be released in early 2016. According to analyst firm Strategy AnalyTIcs, standards-based solutions such as single-line automotive Ethernet not only speed time to market, but also ensure availability, lifecycle, scalability, and interoperability. The company expects to deploy as many as 500 million Ethernet ports in the car by 2020. Many of the world's leading automakers have adopted in-vehicle Ethernet technology as their first choice for many vehicle connectivity solutions, including BMW, Jaguar and Volkswagen. Industry standardization is expected to further extend the technology to a wider range of automotive applications, such as mid-range and economic models.
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