CN105389494A - Biometric identification password verification system and method based on brain wave - Google Patents
Biometric identification password verification system and method based on brain wave Download PDFInfo
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- CN105389494A CN105389494A CN201510739916.3A CN201510739916A CN105389494A CN 105389494 A CN105389494 A CN 105389494A CN 201510739916 A CN201510739916 A CN 201510739916A CN 105389494 A CN105389494 A CN 105389494A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/015—Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/011—Emotion or mood input determined on the basis of sensed human body parameters such as pulse, heart rate or beat, temperature of skin, facial expressions, iris, voice pitch, brain activity patterns
Abstract
The present invention relates to the technical field of information security verification, and particularly relates to a biometric identification password verification system and method based on a brain wave. The system comprises an adjustable head band, a visual evoked system, an auditory evoked system, a somatosensory evoked system, a forehead signal sensor, a signal receiving processor, a thinking signal matching checker and an ear clip. The biometric identification password verification system and method based on the brain wave, which are provided by the present invention, use an ERP signal as a thinking password for performing password verification, thereby solving a universal problem that currently, a conventional biometric identification technique excludes part of crowds due to an unobvious or damaged feature position, and also improving the security and reliability of the information verification, and are simple in operation, low in cost and high in universality.
Description
Technical field
The present invention relates to information security verification technique field, particularly biological identification technology, be specifically related to a kind of bio-identification password validation system based on brain wave and method.
Background technology
Password authentification is ubiquitous in actual life, as network account password, and bank card password, gate inhibition's password etc.Password authentification is set mainly for ensureing privacy and the property safety of people, the loss that will cause in various degree once password is decrypted.
At present, there is a root problem in traditional cryptographic technique, only have when password is very loaded down with trivial details and be often replaced, could protect user account most effectively, but this causes user to be difficult to memory cipher and easily forgets password.In addition, existing password combination generally uses numeral, letter, symbol etc., has monotonicity and is often easy to crack.Along with the development of science and technology, biological identification technology starts the information security checking field entering life.The existing information identifying method based on biological characteristic mainly contains fingerprint recognition, recognition of face, iris recognition, Application on Voiceprint Recognition etc.All there is deficiency to a certain extent in these methods: not significantly or carry the crowd damaged at biological characteristic position and can be left out, as finger wear possibly cannot carry out fingerprint recognition, blind person cannot carry out iris recognition etc. to (1) part biological feature.(2) security cannot ensure, as face characteristic is easily usurped by die sinking, and vocal print feature and easily imitated etc.
Therefore, in order to solve the problem, propose the thinking method of password authentication based on EEG signals.Brain electricity is spontaneity, the rhythmicity bioelectric of brain cell group, and meet following requirement as biological characteristic recognition information: the first, possess ubiquity, each live body can collect EEG signals.The second, have uniqueness, the make of everyone brain is all not identical with the mode of thinking.3rd, have stability, EEG signals can not change easily.4th, be convenient to gather, at present the existing wireless helmet of consumer level, and record brain electric information to human body without any injury, be easily accepted.From practical application angle, biometric information verification identification based on EEG signals can ensure the accuracy of height, and the human thinking coming from individual due to EEG signals is movable, each not identical per capita, be difficult to be decrypted or be forged, therefore avoid the possibility of subjective swindle.In addition, because EEG signals exists only in live body inside, external imitation is avoided, as " false fingerprint ", " falsetto line " etc.Event related potential (ERP) is a kind of special BEP, stimulating with special psychological meaning, utilizing the current potential of the brain caused by multiple or various stimulation by giving wittingly.Compared to the disorderly and unsystematic continuous change of spontaneous brain electricity, ERP has two key properties: latent period is constant and waveform is constant.Therefore it has the index that brain is processed automatically, and the reliability and stability as thinking password are better.Be different from the spontaneity of brain electricity, ERP just can must obtain by bringing out, and mode of bringing out generally has three kinds, vision induced, and brainstem auditory evoked and body sense are brought out.
Summary of the invention
For the defect that prior art exists, the object of the present invention is to provide a kind of bio-identification password validation system based on brain wave and method, solve current traditional biological feature identification technique due to characteristic portion is not obvious or damage and by excluded for part population Problem of Universality, improve the safety and reliability of Information Authentication simultaneously, a kind of simple to operate, with low cost, the password validation system that universality is high and method.
For achieving the above object, the technical solution used in the present invention is:
Based on a bio-identification password validation system for brain wave, comprise adjustable head hoop, vision induced system, brainstem auditory evoked system, system is brought out in body sense, forehead signal inductor, signal receiving processor, thinking Signal Matching verifier and ear clip; Described vision induced system is fixed on the front side of adjustable head hoop, described brainstem auditory evoked system is fixed on one end of adjustable head hoop, the described body sense system of bringing out connects the other end of adjustable head hoop, described forehead signal inductor is fixed on adjustable head hoop, be positioned at the top of vision induced system, described signal receiving processor and thinking Signal Matching verifier are arranged on adjustable head hoop, and described ear clip is arranged on one end of adjustable head hoop; Described vision induced system brings out ERP signal by the display duration picture of 45 seconds, and described brainstem auditory evoked system brings out ERP signal by sending 45 seconds music, and described body sense system of bringing out brings out ERP signal by electric pulse stimulation; Described forehead signal inductor gathers EEG signals at forehead, and described ear clip, as with reference to electrode, is clipped on ear; The current potential that the current potential gathering EEG signals from forehead deducts reference electrode is exactly EEG signals actual on forehead, the EEG signals of reality is transferred in signal receiving processor, signal receiving processor carries out ERP constituent analysis to the EEG signals received, extract signal specific composition, be transferred in thinking Signal Matching verifier.
Described vision induced system adopts and stimulates contrast to be 78%, and mean flow rate is 29.98cd/m
2, background luminance is 3.98cd/m
2, non-target stimulation, for being inverted landscape figure, accounts for 75%, and target stimulation is forward landscape figure or the scenery picture flicker of random irregular appearance, accounts for 25%, superposes 100 times.
Described brainstem auditory evoked system adopts tone-pip stimulus, and intensity is 65dB; The minor lifting time gradient is 2.5ms, and plateau time is 25ms, and sensitivity is 150 μ V; Non-target stimulation is 600Hz, accounts for 75%, and target stimulation is irregular at random appears as 2.5kHz, accounts for 25%, superposes 100 times.
Described body sense is brought out system and is adopted the electric pulse stimulation that repeats continuously of stable state, and what be greater than that 20Hz continuous impulse brings out is non-target stimulation, accounts for 75%, target stimulation interrupts stimulating or the stimulation of transient state individual pulse, and intensity is large, accounts for 25%, stimulation location is Median Nerve At The Wrist, superposes 100 times.
Based on a bio-identification method of password authentication for brain wave, appraisal procedure is as follows:
A thinking cryptographic initialization, because the adaptability that everyone brings out mode to difference is different, allow subject attempt three kinds respectively and different bring out mode, by test, determine that subject is most suitable brings out mode, determine that subject's the best brings out N2-P3 waveform corresponding to mode as initial setting thinking password;
B carries out thinking password authentification, its ERP signal is brought out according to the best mode of bringing out that each subject selects, signal receiving processor carries out ERP constituent analysis to the EEG signals received, extract specific N2-P3 waveform transfer in thinking Signal Matching verifier, whether described thinking Signal Matching verifier checking signal specific composition information mates with initial setting thinking password.
Compared with prior art, the present invention has the following advantages and effect:
The present invention adopts and portablely wears brain wave acquisition equipment, with low cost, is applicable to various occasion.The present invention only gathers the EEG signals of a forehead point, simple and quick, avoids and gathers the loaded down with trivial details of full brain EEG signals.Easy to use, adaptability is good, and system stability is reliable.Use ERP signal with strong points as thinking password, be difficult to be forged and be responsible for, improve the reliable new and security of information security checking.There is general applicability, be applicable to group of handicapped or the not obvious crowd of part biological feature completely.
Accompanying drawing explanation
Fig. 1 is the primary structure schematic diagram of the thinking password validation system based on ERP signal analysis of the present invention.
Embodiment
Details are as follows by reference to the accompanying drawings for the preferred embodiments of the present invention:
As shown in Figure 1, a kind of bio-identification password validation system based on brain wave, comprises adjustable head hoop 1, vision induced system 2, brainstem auditory evoked system 3, system 4 is brought out in body sense, forehead signal inductor 5, signal receiving processor 6, thinking Signal Matching verifier 7 and ear clip 8; Described vision induced system 2 is fixed on the front side of adjustable head hoop 1, described brainstem auditory evoked system 3 is fixed on one end of adjustable head hoop 1, the other end that system 4 connects adjustable head hoop 1 is brought out in described body sense, described forehead signal inductor 5 is fixed on adjustable head hoop 1, be positioned at the top of vision induced system 2, described signal receiving processor 6 and thinking Signal Matching verifier 7 are arranged on adjustable head hoop 1, and described ear clip 8 is arranged on one end of adjustable head hoop 1; Described vision induced system 2 brings out ERP signal by the display duration picture of 45 seconds, and described brainstem auditory evoked system 3 brings out ERP signal by sending 45 seconds music, and described body sense is brought out system 4 and brought out ERP signal by electric pulse stimulation; Described forehead signal inductor 5 gathers EEG signals at forehead, and described ear clip 8, as with reference to electrode, is clipped on ear; The current potential that the current potential gathering EEG signals from forehead deducts reference electrode is exactly EEG signals actual on forehead, the EEG signals of reality is transferred in signal receiving processor 6, signal receiving processor 6 carries out ERP constituent analysis to the EEG signals received, extract signal specific composition, be transferred in thinking Signal Matching verifier 7.
Described vision induced system 2 adopts stimulates contrast to be 78%, and mean flow rate is 29.98cd/m
2, background luminance is 3.98cd/m
2, non-target stimulation, for being inverted landscape figure, accounts for 75%, and target stimulation is forward landscape figure or the scenery picture flicker of random irregular appearance, accounts for 25%, superposes 100 times.
Described brainstem auditory evoked system 3 adopts tone-pip stimulus, and intensity is 65dB; The minor lifting time gradient is 2.5ms, and plateau time is 25ms, and sensitivity is 150 μ V; Non-target stimulation is 600Hz, accounts for 75%, and target stimulation is irregular at random appears as 2.5kHz, accounts for 25%, superposes 100 times.
The electric pulse stimulation that system 4 adopts stable state to repeat continuously is brought out in described body sense, and what be greater than that 20Hz continuous impulse brings out is non-target stimulation, accounts for 75%, target stimulation interrupts stimulating or the stimulation of transient state individual pulse, and intensity is large, accounts for 25%, stimulation location is Median Nerve At The Wrist, superposes 100 times.
Based on a bio-identification method of password authentication for brain wave, appraisal procedure is as follows:
A thinking cryptographic initialization, because the adaptability that everyone brings out mode to difference is different, allow subject attempt three kinds respectively and different bring out mode, by test, determine that subject is most suitable brings out mode, determine that subject's the best brings out N2-P3 waveform corresponding to mode as initial setting thinking password;
B carries out thinking password authentification, its ERP signal is brought out according to the best mode of bringing out that each subject selects, signal receiving processor 6 carries out ERP constituent analysis to the EEG signals received, extract specific N2-P3 waveform transfer in thinking Signal Matching verifier 7, described thinking Signal Matching verifier 7 verifies whether signal specific composition information mates with initial setting thinking password.
Claims (5)
1. the bio-identification password validation system based on brain wave, it is characterized in that, comprise adjustable head hoop (1), vision induced system (2), brainstem auditory evoked system (3), system (4) is brought out in body sense, forehead signal inductor (5), signal receiving processor (6), thinking Signal Matching verifier (7) and ear clip (8); Described vision induced system (2) is fixed on the front side of adjustable head hoop (1), described brainstem auditory evoked system (3) is fixed on one end of adjustable head hoop (1), the other end that system (4) connects adjustable head hoop (1) is brought out in described body sense, described forehead signal inductor (5) is fixed on adjustable head hoop (1), be positioned at the top of vision induced system (2), described signal receiving processor (6) and thinking Signal Matching verifier (7) are arranged on adjustable head hoop (1), and described ear clip (8) is arranged on one end of adjustable head hoop (1); Described vision induced system (2) brings out ERP signal by the display duration picture of 45 seconds, and described brainstem auditory evoked system (3) brings out ERP signal by sending 45 seconds music, and described body sense is brought out system (4) and brought out ERP signal by electric pulse stimulation; Described forehead signal inductor (5) gathers EEG signals at forehead, and described ear clip (8), as with reference to electrode, is clipped on ear; The current potential that the current potential gathering EEG signals from forehead deducts reference electrode is exactly EEG signals actual on forehead, the EEG signals of reality is transferred in signal receiving processor (6), signal receiving processor (6) carries out ERP constituent analysis to the EEG signals received, extract signal specific composition, be transferred in thinking Signal Matching verifier (7).
2. the bio-identification password validation system based on brain wave according to claim 1, is characterized in that, the employing of described vision induced system (2) stimulates contrast to be 78%, and mean flow rate is 29.98cd/m
2, background luminance is 3.98cd/m
2, non-target stimulation, for being inverted landscape figure, accounts for 75%, and target stimulation is forward landscape figure or the scenery picture flicker of random irregular appearance, accounts for 25%, superposes 100 times.
3. the bio-identification password validation system based on brain wave according to claim 1, is characterized in that, described brainstem auditory evoked system (3) adopts tone-pip stimulus, and intensity is 65dB; The minor lifting time gradient is 2.5ms, and plateau time is 25ms, and sensitivity is 150 μ V; Non-target stimulation is 600Hz, accounts for 75%, and target stimulation is irregular at random appears as 2.5kHz, accounts for 25%, superposes 100 times.
4. the bio-identification password validation system based on brain wave according to claim 1, it is characterized in that, the electric pulse stimulation that system (4) adopts stable state to repeat continuously is brought out in described body sense, what be greater than that 20Hz continuous impulse brings out is non-target stimulation, accounts for 75%, and target stimulation interrupts stimulating or transient state individual pulse stimulates, intensity is large, account for 25%, stimulation location is Median Nerve At The Wrist, superposes 100 times.
5., based on a bio-identification method of password authentication for brain wave, it is characterized in that, appraisal procedure is as follows:
A thinking cryptographic initialization, because the adaptability that everyone brings out mode to difference is different, allow subject attempt three kinds respectively and different bring out mode, by test, determine that subject is most suitable brings out mode, determine that subject's the best brings out N2-P3 waveform corresponding to mode as initial setting thinking password;
B carries out thinking password authentification, its ERP signal is brought out according to the best mode of bringing out that each subject selects, signal receiving processor (6) carries out ERP constituent analysis to the EEG signals received, extract specific N2-P3 waveform transfer in thinking Signal Matching verifier (7), whether described thinking Signal Matching verifier (7) checking signal specific composition information mates with initial setting thinking password.
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| CN108681392A (en) * | 2018-03-30 | 2018-10-19 | 广东欧珀移动通信有限公司 | Information query method and Related product |
| CN109189229A (en) * | 2018-10-23 | 2019-01-11 | 南京林业大学 | A kind of brain wave drafting art pattern acquiring brain waves regulating system |
| CN109784027A (en) * | 2019-01-11 | 2019-05-21 | 西安电子科技大学 | Auth method based on dual EEG signals feature |
| CN110321691A (en) * | 2019-07-30 | 2019-10-11 | 东南大学 | A kind of subscription authentication device and its method for authenticating suitable for brain-computer interface |
| US11800998B2 (en) * | 2018-11-19 | 2023-10-31 | Electronics And Telecommunications Research Institute | Personal authentication device based on auditory brainstem response signal and method thereof |
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Application publication date: 20160309 |