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Processor detection method, apparatus and system

A technology for detection devices and processors, which can be used in electrical digital data processing, computer security devices, instruments, etc., and can solve problems such as safety risks

Active Publication Date: 2018-08-10
TSINGHUA UNIV
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  • Abstract
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  • Claims
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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

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  • Processor detection method, apparatus and system
  • Processor detection method, apparatus and system
  • Processor detection method, apparatus and system

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary 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.

[0029] 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 or c...

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Abstract

The invention provides a processor detection method, apparatus and system. The method comprises the steps of obtaining an access record of a processor to a memory in a running process, wherein the access record comprises reading operation information and corresponding time information; determining whether the reading operation information corresponding to a high access permission exists in the access record or not; and when the reading operation information corresponding to the high access permission exists, determining whether the reading operation information corresponding to the high accesspermission belongs to unauthorized operation or not. According to the processor detection method, apparatus and system, a behavior of reading data from the memory by the processor is detected and analyzed, so that the security problem caused by malicious use of unauthorized reading operation can be prevented.

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. Among them, the branch prediction mechanism is mainly used to solve the problem of improving 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 per...

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Application Information

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IPC IPC(8): G06F21/71G06F21/73
CPCG06F21/71G06F21/73G06F21/52G06F21/79G06F21/554G06F2221/034
Inventor 刘雷波罗奥尹首一魏少军
Owner TSINGHUA UNIV
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