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Chip data protection circuit, chip and electronic device

A data protection and circuit technology, applied in digital data protection, electrical digital data processing, internal/peripheral computer component protection, etc., can solve the problem of low chip security

Active Publication Date: 2021-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a chip data protection circuit, chip and electronic equipment to solve the problem of low chip security in the prior art

Method used

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  • Chip data protection circuit, chip and electronic device
  • Chip data protection circuit, chip and electronic device
  • Chip data protection circuit, chip and electronic device

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Embodiment Construction

[0051] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

[0052] The technical solution of the present invention will b...

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Abstract

Embodiments of the present invention provide a chip data protection circuit, chip and electronic equipment. Wherein, the data protection circuit performs bit width expansion and scrambling processing on the first alarm signal through the working module to obtain the second alarm signal, and outputs the second alarm signal to the processing unit, and the processing unit performs descrambling processing on the second alarm signal, The descrambling result is obtained. When the second alarm signal is attacked, the descrambling fails and the descrambling result is an active level. The processing unit outputs the descrambling result to the reset request unit, and the reset request unit generates a reset request signal according to the descrambling result. Therefore, even if the second alarm signal is attacked, the reset request unit can be made to output a reset request signal, so as to protect the data of the working module from being stolen and improve the security of the chip.

Description

technical field [0001] The embodiments of the present invention relate to chip technology, and in particular to a chip data protection circuit, chip and electronic equipment. Background technique [0002] As an important part of mobile terminals, computers or other electronic devices, chips undertake functions such as computing and storage. The chip will generate and store data in the working state, and some or all of the data has high confidentiality requirements, such as the data generated and stored by the security chip in the working state. Therefore, it is particularly important to protect the data of the chip from being stolen. [0003] In the prior art, the chip includes a working module and a clock reset module, and the working module is connected to the clock reset module. When the working module is attacked by the outside, an alarm signal with an effective level is generated, and the clock reset module generates a reset request signal with an effective level accor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/60G06F11/10
CPCG06F11/1004G06F11/1032G06F21/602G06F11/10G06F21/72G06F21/75G06F21/78G06F21/60
Inventor 丁强刘宇鹿甲寅檀珠峰
Owner HUAWEI TECH CO LTD
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