Method for improving product safety of Internet of Things through non-maskable interrupt

Abstract

The invention discloses a method for improving product safety of Internet of Things through non-maskable interrupt. All safety applications / operations are executed in NMI (non-maskable interrupt). The method includes (1), calling a safety application / operation N by a system; (2), configuring a calling mark of the safety application / operation N; (3), triggering the NMI, and by judging the mark set in the step (2) via an NMI processing function, learning the called safety application / operation and acquiring parameters; (4), acquiring various secret keys needed for the safety application / operation N from OTP (one time programmable), and storing the secret keys into an applied resource; (5), acquiring plaintext data and codes through the secret keys; (6), executing logic, including data processing and result encrypting and signing, of the safety application / operation N; (7), deleting encrypted data and code plaintexts; (8), cleaning and releasing the applied resource, and quitting the NMI; (9), sending result data of the safety application / operation N; (10), ending calling of the safety application / operation N.

Description

technical field [0001] The invention relates to a method for improving the security of Internet of Things products by using non-executable interrupts. Background technique [0002] The Internet of Things will be the next "important productivity" to promote the rapid development of the world, and it will be another trillion-level market after the communication network. Industry experts believe that, on the one hand, the Internet of Things can improve economic efficiency and greatly save costs; on the other hand, it can provide technical impetus for the recovery of the global economy. The United States and the European Union are investing huge sums of money in in-depth research and exploration of the Internet of Things. my country is also paying close attention to and attaching great importance to the research of the Internet of Things. The Ministry of Industry and Information Technology, together with relevant departments, is conducting research on the new generation of info...

AI Technical Summary

Problems solved by technology

[0017] 1. The encryption and decryption operation itself is exposed to the attacker, and the attacker can easily invade the encryption and decryption operation;

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