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Method of detecting processor, detection device and detection system

一种检测装置、处理器的技术，应用在电数字数据处理、计算机安全装置、仪器等方向，能够解决安全风险等问题，达到提升安全性的效果

Active Publication Date: 2018-09-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recent security researchers have discovered that these features of modern processor architectures pose security risks and may be exploited by attackers in specific situations

Method used

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  • Method of detecting processor, detection device and detection system
  • Method of detecting processor, detection device and detection system
  • Method of detecting processor, detection device and detection system

Examples

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Embodiment Construction

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be understood, however, that these descriptions are illustrative only and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention. In addition, the various embodiments provided below in the present invention and the technical features in the embodiments can be combined with each other in any manner.

[0021] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the invention. In addition, the terms "comprising", "comprising", etc. used herein indicate the existence of stated features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations o...

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Abstract

The invention provides a method of detecting a processor, a detection device and a detection system. The method includes: acquiring first access records of a processor on a memory in an running process, wherein the first access records include reading operation information; acquiring second access records of the detection device on the memory in a playback process, wherein the second access records include first reading operation information, and the first reading operation information is corresponding reading operation information at the time when a first access of the detection device on thesame address in the playback process is a reading operation; and according to the first access records and the second access records, determining whether the processor in the running process carriesout reading on a memory address other than addresses contained in the second access records. According to the embodiment of the invention, behaviors of reading data from the memory by the processor are detected and analyzed, and security of the processor can be improved on the premise of not impacting performance of highly efficient running of the processor.

Description

technical field [0001] The invention relates to a method for detecting a processor, a detection device and a detection system. Background technique [0002] Modern processors improve processing power by executing different tasks simultaneously at each stage of the pipeline. In order to make this pipeline mechanism more efficient, modern processors introduce branch prediction mechanisms and out-of-order execution mechanisms to perform operations more efficiently. The branch prediction mechanism is mainly used to improve the execution efficiency by predicting the code of the execution target address before the jump branch is completely determined. If the prediction fails, the pipeline discards the mispredicted code and rolls back the state of the processor. The out-of-order execution mechanism improves parallel execution capabilities by disrupting the execution order of codes. These processor optimization techniques are of great help to the performance of modern processors. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/52G06F21/55
CPCG06F21/52G06F21/552G06F21/54G06F21/6281G06F9/542G06F9/3836G06F9/35
Inventor 刘雷波罗奥尹首一魏少军
Owner TSINGHUA UNIV
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