CN103455743A - Method and device for fingerprint authentication - Google Patents
Method and device for fingerprint authentication Download PDFInfo
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- CN103455743A CN103455743A CN2013103522808A CN201310352280A CN103455743A CN 103455743 A CN103455743 A CN 103455743A CN 2013103522808 A CN2013103522808 A CN 2013103522808A CN 201310352280 A CN201310352280 A CN 201310352280A CN 103455743 A CN103455743 A CN 103455743A
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Abstract
The invention discloses a method and device for fingerprint authentication, and belongs to the technical field of communications. The method includes extracting users' fingerprint information, comparing the extracted users' fingerprint information to the prestored users' fingerprint information, and authenticating the users successfully if the similarity between the extracted users' fingerprint information and the prestored users' fingerprint information is lower than the preset first similarity threshold. The device comprises an extracting module, a comparing module and a first processing module. If the similarity between the extracted users' fingerprint information and the prestored users' fingerprint information is lower than the preset similarity threshold, then authentication of users is succeed, in other words, the low similarity marks the success of authentication of users. By the method for fingerprint authentication, security can be improved.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of fingerprint verification method and device.
Background technology
Along with the development of the communication technology, in order to protect user profile and the safety exchanged, the various authentication methods such as finger print identifying, cipher authentication have appearred, because fingerprint has uniqueness, security is higher, so finger print identifying has been subject to widespread use.
Existing fingerprint verification method is as follows: the finger print information that extracts the user, the user's of extraction finger print information and the user's who prestores finger print information are compared, if the user's who extracts finger print information consistent with the user's who prestores finger print information (user's who extracts finger print information approaches 100% with the similarity of the user's who prestores finger print information), to user's authentication success.
Yet, the imitation that easily is stolen of user's finger print information, illegal user can utilize the finger print information of stealing imitation to realize authentication, and the security of existing fingerprint verification method is low.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of fingerprint verification method and device.Described technical scheme is as follows:
On the one hand, provide a kind of fingerprint verification method, described method comprises:
Extract user's finger print information;
The user's of extraction finger print information and the user's who prestores finger print information are compared;
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, to user's authentication success.
On the other hand, provide a kind of fingerprint certification device, described device comprises:
Extraction module, for extracting user's finger print information;
Comparison module, compare for the finger print information of the user by extraction and the user's who prestores finger print information;
The first processing module, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, to user's authentication success.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than default similarity threshold, to user's authentication success, be that similarity is less, to user's authentication success, due to the user when pressing fingerprint, that dynamic random is pressed, the two similarity less of finger print information and the finger print information that prestores, the finger print information of stealing imitation is copying former finger print information, the two similarity of the finger print information of stealing imitation and the finger print information prestored is relatively large, therefore the possibility that the less user of similarity is validated user is larger, method of the present invention can improve security.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of fingerprint verification method process flow diagram that the embodiment of the present invention one provides;
Fig. 2 is a kind of fingerprint verification method process flow diagram that the embodiment of the present invention two provides;
Fig. 3 is a kind of fingerprint certification device structural representation that the embodiment of the present invention three provides;
Fig. 4 is the another kind of fingerprint certification device structural representation that the embodiment of the present invention three provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment mono-
The embodiment of the present invention provides a kind of fingerprint verification method, and referring to Fig. 1, the method comprises:
101: the finger print information that extracts the user.
102: the user's of extraction finger print information and the user's who prestores finger print information are compared.
103: if the two similarity of the user's who extracts finger print information and the user's who prestores finger print information is less than the first default similarity threshold, to user's authentication success.
Preferably, the method also comprises:
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be more than or equal to the first default similarity threshold, to user authentication failure.
Preferably, extraction user's finger print information comprises:
The prompting user presses fingerprint according to default method;
Finger print information when the extraction user presses fingerprint according to default method.
Preferably, if the two similarity of the user's who extracts finger print information and the user's who prestores finger print information is less than the first default similarity threshold, user's authentication success is comprised:
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success.
The described fingerprint verification method of the embodiment of the present invention, if the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than default similarity threshold, to user's authentication success, be that similarity is less, to user's authentication success, due to the user when pressing fingerprint, that dynamic random is pressed, the two similarity less of finger print information and the finger print information that prestores, the finger print information of stealing imitation is copying former finger print information, the two similarity of the finger print information of stealing imitation and the finger print information prestored is relatively large, therefore the possibility that the less user of similarity is validated user is larger, method of the present invention can improve security.The user can press fingerprint according to default method, and the two similarity of the user's who guarantee to extract finger print information and the user's who prestores finger print information, be less than default similarity threshold, and be not easy to be imitated by illegal user, further improves security.If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success, make user's finger print information and the user's that prestores the two the similarity of finger print information of extraction when certain limit, just, to user's authentication success, can guarantee that similarity can be ad infinitum not little, further improves security.
Embodiment bis-
The embodiment of the present invention provides a kind of fingerprint verification method, and referring to Fig. 2, the method comprises:
201: the finger print information that extracts the user.
Particularly, can be by the extraction users' such as fingerprint sensor finger print information.
And the user can press fingerprint according to default method, the two similarity of the user's who guarantee to extract finger print information and the user's who prestores finger print information, be less than default similarity threshold, and be not easy to be imitated by illegal user.
Wherein, default method can be to press with finger tip, by half of finger, is pressed etc., and this is not specifically limited, and can arrange flexibly according to practical situations.
And, before the user presses fingerprint according to default method, can point out the user to press fingerprint according to default method, as " method of please setting according to you is pressed fingerprint ".
202: the user's of extraction finger print information and the user's who prestores finger print information are compared.
Particularly, can extract in advance user's complete finger print information and be stored in default space, obtaining from default space when needs are used.
203: the two similarity of the user's that judgement is extracted finger print information and the user's who prestores finger print information, whether be less than the first default similarity threshold, if be less than, carry out 204; If be more than or equal to, carry out 205.
Wherein, the first default similarity threshold can be 90%, 80%, 60% etc.
Particularly, in order to guarantee that similarity can be ad infinitum not little, the second default similarity threshold can be set, if the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success; If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be more than or equal to the first default similarity threshold or be less than or equal to the second default similarity threshold, to user authentication failure.
Wherein, the second default similarity threshold can be 40%, 30%, 20% etc.
204: to user's authentication success, then finish.
205: to user authentication failure, then finish.
The described fingerprint verification method of the embodiment of the present invention, if the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than default similarity threshold, to user's authentication success, be that similarity is less, to user's authentication success, due to the user when pressing fingerprint, that dynamic random is pressed, the two similarity less of finger print information and the finger print information that prestores, the finger print information of stealing imitation is copying former finger print information, the two similarity of the finger print information of stealing imitation and the finger print information prestored is relatively large, therefore the possibility that the less user of similarity is validated user is larger, method of the present invention can improve security.The user can press fingerprint according to default method, and the two similarity of the user's who guarantee to extract finger print information and the user's who prestores finger print information, be less than default similarity threshold, and be not easy to be imitated by illegal user, further improves security.If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success, make user's finger print information and the user's that prestores the two the similarity of finger print information of extraction when certain limit, just, to user's authentication success, can guarantee that similarity can be ad infinitum not little, further improves security.
Embodiment tri-
Referring to Fig. 3, the embodiment of the present invention provides a kind of fingerprint certification device, and this device comprises:
The first processing module 303, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, to user's authentication success.
Preferably, referring to Fig. 4, this device also comprises:
The second processing module 304, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be more than or equal to the first default similarity threshold, to user authentication failure.
Preferably, extraction module 301 comprises:
Tip element, press fingerprint for pointing out the user according to default device;
Extraction unit, for extracting the finger print information of user while according to default device, pressing fingerprint.
Preferably, the first processing module 303 comprises:
The first processing unit, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success.
The described fingerprint certification device of the embodiment of the present invention, if the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than default similarity threshold, to user's authentication success, be that similarity is less, to user's authentication success, due to the user when pressing fingerprint, that dynamic random is pressed, the two similarity less of finger print information and the finger print information that prestores, the finger print information of stealing imitation is copying former finger print information, the two similarity of the finger print information of stealing imitation and the finger print information prestored is relatively large, therefore the possibility that the less user of similarity is validated user is larger, method of the present invention can improve security.The user can press fingerprint according to default method, and the two similarity of the user's who guarantee to extract finger print information and the user's who prestores finger print information, be less than default similarity threshold, and be not easy to be imitated by illegal user, further improves security.If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success, make user's finger print information and the user's that prestores the two the similarity of finger print information of extraction when certain limit, just, to user's authentication success, can guarantee that similarity can be ad infinitum not little, further improves security.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a fingerprint verification method, is characterized in that, described method comprises:
Extract user's finger print information;
The user's of extraction finger print information and the user's who prestores finger print information are compared;
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, to user's authentication success.
2. method according to claim 1, is characterized in that, described method also comprises:
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be more than or equal to the first default similarity threshold, to user authentication failure.
3. method according to claim 1, is characterized in that, described extraction user's finger print information comprises:
The prompting user presses fingerprint according to default method;
Finger print information when the extraction user presses fingerprint according to default method.
4. according to the described method of the arbitrary claim of claim 1-3, it is characterized in that, if the two similarity of the user's of described extraction finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, user's authentication success is comprised:
If the two similarity of the user's who extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success.
5. a fingerprint certification device, is characterized in that, described device comprises:
Extraction module, for extracting user's finger print information;
Comparison module, compare for the finger print information of the user by extraction and the user's who prestores finger print information;
The first processing module, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, to user's authentication success.
6. device according to claim 5, is characterized in that, described device also comprises:
The second processing module, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be more than or equal to the first default similarity threshold, to user authentication failure.
7. device according to claim 5, is characterized in that, described extraction module comprises:
Tip element, press fingerprint for pointing out the user according to default device;
Extraction unit, for extracting the finger print information of user while according to default device, pressing fingerprint.
8. according to the described device of the arbitrary claim of claim 5-7, it is characterized in that, described the first processing module comprises:
The first processing unit, if, for the two similarity of the user's that extracts finger print information and the user's who prestores finger print information, be less than the first default similarity threshold, be greater than the second default similarity threshold, to user's authentication success.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103522808A CN103455743A (en) | 2013-08-13 | 2013-08-13 | Method and device for fingerprint authentication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103522808A CN103455743A (en) | 2013-08-13 | 2013-08-13 | Method and device for fingerprint authentication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106060231A (en) * | 2016-04-27 | 2016-10-26 | 努比亚技术有限公司 | Information processing method and information processing device |
| CN106407870A (en) * | 2015-07-28 | 2017-02-15 | 宇龙计算机通信科技(深圳)有限公司 | Fingerprint identification method and user equipment |
| CN110990815A (en) * | 2019-11-11 | 2020-04-10 | 珠海格力电器股份有限公司 | Identity verification method and device |
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| US20040165755A1 (en) * | 2003-02-25 | 2004-08-26 | Hillhouse Robert D. | Method and apparatus for biometric verification with data packet transmission prioritization |
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| US20050220327A1 (en) * | 2004-03-30 | 2005-10-06 | Yasufumi Itoh | Image collation device, image collation method, image collation program, and computer-readable recording medium with image collation program recorded thereon |
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