Service-oriented trusted execution module and communication method

Abstract

According to the service-oriented trusted execution module and the communication method, the technical problems that the functions of an existing security chip and an SIM card have no intersection andthe use efficiency is low can be solved. The system comprises a security chip SOTEM module and a communication module, and the security chip SOTEM module comprises an eSIM application module and an eSAM application module, wherein the SOTEM module is connected with the communication module, the communication module calls an eSIM application function in the SOTEM to achieve an operator network access function, and meanwhile, a processor in the communication module calls a security management function of an eSAM application module in the SOTEM module. According to the service-oriented trusted execution module, the size of the terminal is reduced to the maximum extent, meanwhile, the situations that an SIM card is poor in contact and cannot communicate due to severe deployment scene environment or vibration and the like can be avoided, and the stability of a chip is further improved. Therefore, the production process is simplified, the eSIM chip manufacturer and the security chip manufacturer do not need to be docked respectively, the product research and development period is greatly shortened, and the communication information security can be ensured more efficiently.

Description

technical field [0001] The invention relates to the technical field of security chips, in particular to a service-oriented trusted execution module and a communication method. Background technique [0002] The security chip is a device that can independently generate keys, encrypt and decrypt, and has an independent processor and storage unit inside, which can safely store keys and feature data. Security chip-related technologies are very mature and have been applied in many fields including finance and certificates. The security chip has built-in different cryptographic algorithms, provides data security protection, identity authentication and other functions, and provides a strong guarantee for solving security problems. [0003] ESIM card, namely Embedded-SIM, embedded SIM card. The concept of the eSIM card is to embed the traditional SIM card directly on the device chip, rather than adding it to the device as an independent removable part. Users do not need to insert a...

AI Technical Summary

Problems solved by technology

[0005] A service-oriented trusted execution module and a communication method proposed by the present invention can solve the technical problem that the functions of the existing security chip and the SIM card do not overlap, and the use efficiency is low

Images