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Password input device and method

A password input and equipment technology, applied in the field of password input system, can solve the problems of easy password theft, etc., and achieve the effect of improving security, increasing security, and increasing difficulty

Inactive Publication Date: 2017-05-31
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a password input device and method for solving the problem in the prior art that the password is easily stolen when the actual password input operation is used to input the password

Method used

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  • Password input device and method

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Embodiment 1

[0042] Such as figure 1 and figure 2As shown, this embodiment discloses a password input device based on Steady-state visual evoked potential (SSVEP), including: brain electrical stimulation device 110, brain electrical signal acquisition device 120, input device 130 and control device 140. in,

[0043] The brain electrical stimulation device 110 is used to provide users with multiple visual stimuli with different fixed frequencies. Moreover, the brain electrical stimulation device 110 realizes the visual stimulation to the user by flashing light at different frequencies, that is, the brain electrical stimulation device 110 flashes at respective fixed frequencies through a plurality of light emitters, so as to achieve the visual stimulation to the user. In this embodiment, the brain electrical stimulation module 110 adopts an LED stimulation panel 111 composed of 4 LED lights, and each LED light flashes at its own fixed frequency. Specifically, as figure 2 and image 3...

Embodiment 2

[0066] This embodiment discloses a password input method based on Steady-state visual evoked potential (SSVEP), which is applied to the password input device of the password input device, and the password input device is also combined with EEG signal acquisition. The device is connected.

[0067] Before entering the password, a series of operations are required:

[0068] First, set the relevant parameters of the password input device:

[0069] First, set the signal filtering frequency band, sampling rate, leads, etc. of the EEG signal acquisition device. In this embodiment, the filter selection is 5-30Hz bandpass filter, the sampling rate is set to 256Hz, and the lead selection is POz, O1, Oz, O2;

[0070] Secondly, the relevant parameters of the brain electrical stimulation device and the brain electrical signal processing device are set. Relevant parameters include but are not limited to data processing time window, time sliding window, sequence detection decision thresho...

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Abstract

The invention provides a password input device and a method, comprising a device of the electrical brain stimulation which provides a plurality of the visual stimuli of the different fixed frequencies; an electroencephalographic signal acquisition device collecting the EEG signal of the user through a lead, wherein the EEG signal is generated by which the user choose a gaze from a plurality of the visual stimuli of the different fixed frequencies according to the password and the password strategy; an input device connected with the EEG signal acquisition device which the steady - state visual is extracted to evoke the potential characteristics from the EEG signal, then is converted into the password and is transmitted to the encryption device. And the password strategy comprises the relationship between the password and the visual stimuli of a plurality of the different fixed frequencies. The password input device and the method are the encrypted input method for with a new bio-metric feature compared with a conventional password input mode, which utilizes the SSVP as the encryption means to remove the actual cryptographic input operation. The password input device and the method improve the security of the password input and require no training with the high recognition correctness and the wide range of the applicable population.

Description

technical field [0001] The present invention relates to a password input system, in particular to a password input device and method based on steady-state visual evoked potential without actual password input operation. Background technique [0002] With the development of the Internet and information technology, people frequently use identity authentication operations in their daily lives. The most commonly used identity authentication method is manual input of password instructions. In addition, there are also identity authentication systems that use biometric features such as iris and fingerprints. Based on existing biometric feature authentication methods, expensive supporting devices are required, so in actual use Difficult to obtain widespread application. These traditional identity authentication methods are only done because of the actual password input, so when people perform password input operations, they can directly steal, clone or usurp passwords, courseware, ...

Claims

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Application Information

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IPC IPC(8): G06F3/01G06F21/83
CPCG06F3/015G06F21/83
Inventor 蒋昌俊闫春钢张亚英曹磊居征宇简荣军
Owner TONGJI UNIV
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