The encryption and key mechanism are important means to ensure the safety of RFID data

RFID technology has the important characteristics of automatic information collection and traceability, and its application is one of the important auxiliary means to improve product quality and safety production level. As far as the RFID industry chain itself is concerned, there is no essential difference between RFID and other IT products, from the development of chips, encapsulation to card manufacturing, and the development of read-write tools and system software to system integration and industrial applications. RFID has the characteristics of wide application fields, new technologies, and unique requirements for its product quality and safety, mainly reflected in a wide range of applications and high reliability requirements.

RFID technology has a wide application field. Low-frequency and high-frequency applications are relatively mature, but ultra-high frequency applications that represent the direction of technological development are still rare in large-scale industrial applications. The development of readers and other devices is mostly customized, and it is difficult to establish standardization. Product and intensive production model. UHF reader development and industrial application solutions are the key points for the development of Jiuzhou in the near future. In terms of quality assurance, the company upholds the tradition of Jiuzhou Military Enterprise's quality strategy and applies the concept of TQC (Total Quality Management) throughout the entire life cycle of products. In particular, it must pay attention to design quality because design is the source of quality assurance.

In terms of quality building, Jiuzhou has focused on three aspects: First, it attaches great importance to design quality, develops highly integrated products based on the world's first UHF reader-specific chip, and ensures high reliability of products. At the same time, we focus on the manufacturability of the product in terms of design. Second, we must pay attention to the selection of components and the assurance of production links. We must ensure the high reliability and consistency of products through standardized procurement quality assurance and management as well as high production technology and technological level. The third is to resolutely implement the CMMI comprehensive management standards in management, especially to regulate the software development process. The company expects to pass CMMI's three-level qualification assessment in October.

The level of cost is a relative concept. It must be based on satisfying the demand, otherwise it loses the meaning of low cost. The RFID industry is still in its early stages of development. Many promising industrial applications still need to be perfected in technology and products, and tested in practice. At the present stage, the appeal to RFID is all-encompassing, including technology, function, performance index parameters, encryption authentication, standardization, quality, and information security. With the development of the application, information security issues will become more and more prominent. Resolving problems will become a bottleneck restricting the development of the RFID industry. It will even kill the RFID industry in the early stages of growth. Its importance is much higher than that of low-cost. Appeal.

RFID's information security issues cover the three dimensions of label, network, and data. The network security in the back-end system belongs to the category of traditional information security. The security of the data in the label and the security of communication between the label and the reader are the focus of RFID information security research and development. The threats faced by the labels can be classified into three types: interception, cracking, and replication. They can implement refactoring, deletion, modification, and interference attacks. The corresponding solutions include limiting the communication distance between the label and the reader, using a proprietary communication protocol, Authentication and encryption and selective locking and other protective measures.

Currently, attacks against RFID systems mainly focus on the interception of tag information and the cracking of such information. The encryption and key management mechanism is one of the important means of ensuring data security between the tag and the reader. Before the reader sends a password to unlock the data, the tag's data must be locked.

Encrypting tags will inevitably greatly reduce the processing power of tags and increase the cost of tags. This is the main bottleneck for implementing key management mechanisms. Due to the limitations of passive tag chip performance, computing power, and cost, some mature and advanced encryption algorithms such as AES, RSA, and elliptic curve cryptography cannot be applied to RFID tag encryption in the near future.

At present, many RFID system security protocols and solutions are single measures aimed at a single problem. There is no single means to ensure the security of RFID applications. In practice, comprehensive solutions are also required. Of course, security is relative, there is no absolute security label, the level of security measures (degree of difficulty of cracking, changes with time, etc.) will vary depending on the application.

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