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Mobile phone battery protection board security authentication method and device based on encryption chip

A mobile phone battery and encryption chip technology, applied in the field of security authentication, can solve problems such as cracking the verification method of the mobile phone battery protection board, and achieve the effect of ensuring security and strengthening security verification.

Active Publication Date: 2021-03-26
ZHEJIANG GEOFORCECHIP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to solve the problem of cracking the verification method of the existing mobile phone battery protection board by analyzing the serial number of the cracker, and then implanting the serial number in the counterfeit mobile phone charger.

Method used

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  • Mobile phone battery protection board security authentication method and device based on encryption chip
  • Mobile phone battery protection board security authentication method and device based on encryption chip
  • Mobile phone battery protection board security authentication method and device based on encryption chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The mobile phone battery protection board sets a random number, encodes the random number, and generates a first signal;

[0085] Assuming that the width of the initial signal is 2M, the time slot signal a and the preset time slot threshold a s Compare;

[0086] If the time slot signal is less than the time slot threshold, the first signal is defined as A 1 , the empty transmission width of the first signal is defined as M / 2, the width of the high-level signal is 3M / 2, the interval between the first signal and the time slot signal is aM, and the first signal is transmitted to mobile phone charger;

[0087] When the transmission of the initial signal is completed, send an interval signal to the mobile phone charger to detect whether the interval signal has been sent, if the interval signal has not been sent, continue to send the interval signal until the interval signal send completed;

[0088] The mobile phone charger collects the DC pulse signal, and judges whether...

Embodiment 2

[0093] The mobile phone battery protection board sets a random number, encodes the random number, and generates a first signal;

[0094] Assuming that the width of the initial signal is 2M, the time slot signal a and the preset time slot threshold a s Compare;

[0095] If the time slot signal is greater than the time slot threshold, the first signal is defined as A 2 , the empty transmission width of the first signal is defined as 3M / 2, the width of the high-level signal is M / 2, and the interval between the first signal and the time slot signal is (a s -a), transmitting the first signal to the mobile phone charger;

[0096] When the transmission of the initial signal is completed, send an interval signal to the mobile phone charger to detect whether the interval signal has been sent, if the interval signal has not been sent, continue to send the interval signal until the interval signal send completed;

[0097] The mobile phone charger collects the DC pulse signal, judges ...

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Abstract

The invention discloses a mobile phone battery protection board security authentication method and device based on an encryption chip, and the method comprises the steps: setting a random number for amobile phone battery protection plate, and modulating a DC pulse interval through the random number; allowing a mobile phone charger to collect the modulated direct-current pulse interval in a presettime window and demodulate the modulated direct-current pulse interval to generate the random number; and performing matching verification on the private key of the mobile phone charger and the public key of the mobile phone battery protection plate by utilizing the random number, and performing charging connection on the mobile phone charger and the corresponding mobile phone battery protectionplate according to a matching verification result. According to the method, the safety verification of the mobile phone battery protection plate can be enhanced, and the charging safety of mobile phone equipment is guaranteed.

Description

technical field [0001] The invention relates to the technical field of security authentication, in particular to a security authentication method and device for a cell phone battery protection board based on an encryption chip. Background technique [0002] In order to ensure the safety of charging mobile devices and avoid the negative impact of charging with third-party non-standard chargers, encryption chips are now installed on the battery protection boards of some mobile phones. In addition to conventional charging protection functions such as preventing overcharging, the battery protection board also authenticates the mobile phone charger through the encryption chip when the mobile phone interface is electrically connected to the mobile phone charger. For charging the battery, if the verification fails, the charging circuit will not be connected, and the battery cannot be charged, and the mobile phone will display a prompt that the charger verification fails. In this wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H04L9/08H04L9/30H01M10/44
CPCH01M10/44H04L9/0861H04L9/30H02J7/00045Y02E60/10
Inventor 不公告发明人
Owner ZHEJIANG GEOFORCECHIP TECH CO LTD
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