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Secret key security device

A security device and key technology, applied in the field of communication, to achieve the effect of reducing the number of pins and saving chip resources

Active Publication Date: 2020-03-20
SHENZHEN EXCELSECU DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a key security device to solve the problem of communication between chips in the existing key security device Problems requiring multiple chip pins to implement

Method used

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  • Secret key security device

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Embodiment Construction

[0019] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0020] Such as figure 1 As shown, the key security device provided by the embodiment of the present invention includes a first chip 1 and a second chip 2, the first chip 1 includes a first input pin 11, the second chip 2 includes a first output pin 21, and the second chip 2 includes a first output pin 21. An input pin 11 is connected to the first output pin 21; when the input signal of the first input pin 11 includes the first preset wake-up signal, the first chip 1 enters the communication mode, and receives the first chip 1 through the first input pin 11. The data signal sent by the second chip 2. Both the first chip 1 and the second chip 2 store p...

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Abstract

The invention discloses a secret key safety device, which comprises a first chip and a second chip; the first chip comprises a first input pin, the second chip comprises a first output pin, and the first input pin is connected with the first output pin; when an input signal of the first input pin comprises a first preset wake-up signal, the first chip enters a communication mode and receives a data signal sent by the second chip through the first input pin. According to the secret key safety device provided by the invention, the first chip receives the awakening signal and the data signal through one pin, so that the number of pins on the chip is reduced, and chip resources are saved.

Description

technical field [0001] The invention relates to the communication field, in particular to a key security device. Background technique [0002] At present, the key security device is widely used in the communication between terminal devices, but the existing key security device has the following defects: the communication between the chips in the key security device needs to be connected with multiple pins, For example, it is usually necessary to set wake-up pins, receive data pins, and send data pins on each chip, that is, more chip pins need to be used, resulting in waste of chip resources. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a key security device to solve the problem that the communication between chips in the existing key security device needs multiple chip pins to realize. [0004] The purpose of the present invention adopts following technical scheme to realize: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0894H04L9/0816
Inventor 陈柳章
Owner SHENZHEN EXCELSECU DATA TECH