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

A technology of execution interruption and Internet of Things, which is applied in computer security devices, program/content distribution protection, instruments, etc., to achieve the effects of improving security, high versatility, and preventing plagiarism

Active Publication Date: 2017-01-04
HANGZHOU SYNOCHIP DATA SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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;

Method used

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

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these specific implementations. Those skilled in the art will realize that the present invention covers all alternatives, modifications and equivalents as may be included within the scope of the claims.

[0050] refer to image 3 , Figure 4 , a method for improving the security of IoT products by using non-executable interrupts, including general applications / operations and security applications / operations, characterized in that: all security applications / operations are executed in NMI, and the specific steps are as follows:

[0051] (1) System call security application / operation N;

[0052] (2) Configure the invocation flag of the security application / operation N;

[0053] (3) Trigger NMI, and the NMI processing function judges the flag set in step (2) to know the called security application / operation and obtain parameters;

[0054...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/12
CPCG06F21/128
Inventor 苗欣夏军虎钱志恒洪竞志
Owner HANGZHOU SYNOCHIP DATA SECURITY TECH CO LTD
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