In the Internet of Things era, how to choose a gas meter safety chip?

In the era of gas meter IC cards, the ESAM security module has played an important role in ensuring transaction security and data information transmission. However, in the era of the Internet of Things, the information interaction mode has undergone fundamental changes. At the same time, the SE-SIM, which has security functions and communication functions, and is composed of SE and SIM, reflects more functions, costs, application scenarios and user needs. big advantage.

ESAM, the Embedded Security Control Module. In the era of gas meter IC cards, ESAM was built into the gas meter. Through security authentication, data transfer and transaction can be realized between IC card and ESAM, and between ESAM and gas meter. It can play a security control role for single-point devices and application systems that require identity authentication, data encryption/decryption, secure storage, and communication confidentiality.

Entering the era of the Internet of Things, when NB-IoT technology is rapidly applied in large-scale applications in gas meters, fundamental changes have taken place in the way of information interaction, storage and communication. Compared with the data transmission mode of the IC card gas meter as a single point device, the NB IoT gas meter directly transmits data to the “cloud” platform and business processing platform through the cellular network. Changes in interaction and transmission methods have put forward different requirements for data and transaction security. The SE-SIM, which has both security functions and communication functions at the same time, shows even greater advantages.

Compared with the ESAM solution, the CS18S SE-SIM, which is completely self-developed by China Mobile IoT, is not only a security chip that supports international/national encryption algorithms, but also a communication chip that supports NB/2G/4G multiple standards. It fits perfectly with the cellular communication 2G/4G/NB standard to ensure the security of the communication link. Compared with the ESAM+SIM solution, SE-SIM brings better security, higher integration, lower cost and smaller footprint.

In terms of cost, compared with purchasing ESAM and SIM separately, SE-SIM has obvious price advantages. At the same time, it can provide 3*3mm, 5*6mm two different sizes of SMD and standard plug-in packages, which improves the convenience of user application and reduces the user’s hardware transformation cost. Terminals without security functions can quickly integrate security capabilities by replacing SIM cards and upgrading software.

In terms of security, SE-SIM adopts mainstream international cryptographic algorithms and national secret algorithms, and has all the security functions of SE. EAL4+ certification, reaching telecom-level security protection capabilities. According to the characteristics of the Internet of Things network environment, a lightweight security design is also optimized to reduce the power consumption of the device and enable long-term safe and controllable operation.

In order to further meet the end-to-end security requirements of gas companies, China Mobile IoT has developed its own “end-to-end IoT security integrated protection system” by leveraging its overall security technology advantages of “end, management, cloud, and use”. The solution is mainly composed of SE-SIM on the terminal side and “Heyun Shield” of the cloud test. With SE-SIM as the hardware root of trust, and “Heyun Shield” as the platform authentication terminal, the slave device terminal is completely constructed. , communication, and all-round security support to the business platform side, which solves many pain points of operation security and data security in the gas industry.

Once the program was launched, it attracted much attention from the industry. At present, the solution has been implemented in the gas meter industry, and nearly one million devices and corresponding security platforms have been connected.

In the “Internet of Things Basic Security Technology Innovation Means Solicitation Activity” of the IoT Ecological Security Alliance, China Mobile IoT’s integrated security solution stood out from many projects and won the first prize, which was highly praised by the Ministry of Industry and Information Technology, the alliance and industry experts. Approved.