CN105025203A - Image encryption and decryption method combining physiological features and image capture device thereof - Google Patents
Image encryption and decryption method combining physiological features and image capture device thereof Download PDFInfo
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- CN105025203A CN105025203A CN201410175857.7A CN201410175857A CN105025203A CN 105025203 A CN105025203 A CN 105025203A CN 201410175857 A CN201410175857 A CN 201410175857A CN 105025203 A CN105025203 A CN 105025203A
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Abstract
The present invention provides an image encryption and decryption method combining physiological features and an image capture device thereof. The image encryption and decryption method executes an encryption program and a decryption program. The encryption program comprises capturing a plurality of first iris images by utilizing an image capturing module, generating a first secret key according to the first iris images by utilizing an encryption and decryption module, and when the image capture module generates pictures, encrypting the pictures by controlling the encryption and decryption module and utilizing the first secret key so as to produce encrypted pictures. The decryption program comprises decrypting the encrypted pictures by controlling the encryption and decryption module and utilizing the first secret key so as to restore the pictures.
Description
Technical field
The present invention has to relate to a kind of image encipher-decipher method, and particularly relating to one in conjunction with the method for physiological characteristic as image encryption and decryption, and can use the image capturing device of the method.
Background technology
At present, the pixel of the pick-up lens of consumption-orientation camera is mostly all more than 1,000 ten thousand, a lot of high-order mobile phone even possesses the pick-up lens of more than even 2,000 ten thousand pixels, add the portability of consumption-orientation camera and mobile phone, people are made to start the various information of custom camera or mobile phone record live and work, meanwhile, the possibility of camera or mobile phone interior storage height private data is also more and more higher.
Therefore, the photo and the problem causing privacy of user to be revealed is more serious because camera or mobile phone leak.When camera or mobile phone are lost, the normal worried secret photo in it of its owner has the risk of outflow, or by intentionally personage, camera is temporarily taken away the photo stolen wherein.
Although the setting that the mode of current useful setting code accesses the photo on camera or mobile phone, this kind of mode cannot avoid intentionally personage with steal the mode of password to access the photo in camera or mobile phone, another kind of mode is then the setting that application program can be utilized to carry out comparison film be encrypted, but once this mobile phone or camera fall into be familiar with this application program mode of user operation intentionally personage on hand time, then still have the possibility that privacy data leaks.
Therefore, at present in the urgent need to be a kind of can safely to the method that the photo in camera is encrypted.
Summary of the invention
Because the problem of above-mentioned existing skill, object of the present invention is exactly providing a kind of image encipher-decipher method in conjunction with physiological characteristic and using the image capturing device of the method, the iris of a plurality of user can be utilized as key, and using this key as the encryption of photo in camera or deciphering foundation, and then promote the personal secrets of photo.
Because the problem of above-mentioned existing skill, object of the present invention is exactly at the image capturing device providing a kind of image encipher-decipher method in conjunction with physiological characteristic and use the method, can utilize key effective time scope to control image acquisition function and the photo encryption and decryption functions of camera, be stolen to avoid camera and interior photo thereof and use.
According to object of the present invention, the image encipher-decipher method of one in conjunction with physiological characteristic is proposed, it is applicable to an image capturing device, image capturing device comprises an image acquisition module, an encryption/decryption module and a processing module, and image encipher-decipher method can comprise execution one encipheror and a decrypted program.Encipheror Bao Han ﹕ utilizes image acquisition module to capture a plurality of first iris image respectively.Encryption/decryption module is utilized to produce the first key according to a plurality of first iris image.And when image acquisition module produces photo, control encryption/decryption module and utilize the first double secret key photo to be encrypted to produce encryption photo.Decrypted program Bao Han ﹕ controls encryption/decryption module and utilizes the first key pair encryption photo to be decrypted to reduce photo.
Preferably, the first key had for the first effective time, when after the first key is produced within the first effective time time, by processing module allow image acquisition module produce photo.
Preferably, encryption/decryption module produces the second key according to a plurality of second iris image, when the second key equals the first key, controls encryption/decryption module utilize the second key pair encryption photo to be decrypted to reduce photo by processing module.
Preferably, the second key had for the second effective time, time after the second key is produced within the second effective time, allowed encryption/decryption module to utilize the second key pair encryption photo to be decrypted to reduce photo by processing module.
Preferably, image capturing device more comprises display module, and image encipher-decipher method more comprises: use display module to show order prompting message during a plurality of first iris image of acquisition.
According to object of the present invention, reoffer one and utilize physiological characteristic to make the image capturing device of image encryption and decryption, it comprises an image acquisition module, an encryption/decryption module and a processing module.Image acquisition module is in order to capture a plurality of first iris image or in order to produce photo.Encryption/decryption module can produce the first key according to a plurality of first iris image and utilize the first double secret key photo to be encrypted to produce encryption photo, or utilizes the first key pair encryption photo to be decrypted.Process module system controls encryption/decryption module and utilizes the first key to produce encryption photo, or control encryption/decryption module utilizes the first secret key decryption encryption photo to reduce photo.
Preferably, the first key had for the first effective time, when after the first key is produced within the first effective time time, by processing module allow image acquisition module produce photo.
Preferably, encryption/decryption module produces the second key according to a plurality of second iris image, when the second key equals the first key, controls encryption/decryption module utilize the second key pair encryption photo to be decrypted to reduce photo by processing module.
Preferably, the second key had for the second effective time, time after the second key is produced within the second effective time, allowed encryption/decryption module to utilize the second key pair encryption photo to be decrypted to reduce photo by processing module.
Preferably, the image capturing device of this creation more comprises display module to show order prompting message during a plurality of first iris image of acquisition.
Accompanying drawing explanation
Fig. 1 is for the physiological characteristic that utilizes of the embodiment of the present invention makes the calcspar of the image capturing device of image encryption and decryption.
Fig. 2 is for the physiological characteristic that utilizes of the embodiment of the present invention makes the schematic diagram of the image capturing device of image encryption and decryption.
Fig. 3 is the flow chart of steps of the encipheror of the image encipher-decipher method in conjunction with physiological characteristic for second embodiment of the invention.
Fig. 4 is the flow chart of steps of the decrypted program of the image encipher-decipher method in conjunction with physiological characteristic for third embodiment of the invention.
Embodiment
Please refer to Fig. 1, is for the physiological characteristic that utilizes of the embodiment of the present invention makes the calcspar of the image capturing device of image encryption and decryption.This image capturing device 10 utilizing physiological characteristic to make image encryption and decryption comprises image acquisition module 25, encryption/decryption module 26 and processing module 27.Image acquisition module 25 can be a camera lens, it can in order to capture the image of a plurality of first iris images 22 of a plurality of first user (not being shown in figure), a plurality of second iris image 24 capturing a plurality of second user (not being shown in figure) or acquisition context to produce a photo 32, and wherein this image capturing device 10 utilizing physiological characteristic to make image encryption and decryption can be a camera or an intelligent mobile phone.
Encryption/decryption module 26 can be an application software, it can produce the first key 29 according to a plurality of first iris image 22, and this first key 29 comparison film 32 can be utilized to be encrypted to produce an encryption photo 31, or at different time points, the second key 30 is produced to be decrypted encryption photo 31 according to a plurality of second iris image 24, wherein the first key 29 and the second key 30 had for the first effective time 33 and the second effective time 34 respectively, and encryption/decryption module 26 can first utilize variance method (variance) or accumulation distribution function method (cumulative histogram) to carry out normalization to a plurality of first iris image 22 or a plurality of second iris image 24, and then produce the first key 29 or the second key 30.
Processing module 27 can comprise a processor, processing module 27 allows image acquisition module 25 to produce photo 32, control encryption/decryption module 26 enters encryption to produce encryption photo 31 with the first key 29 comparison film 32, and control encryption/decryption module 26 is entered to decipher to encryption photo 31 with the second key 30.When the generation time length of the first key 29 is not more than first effective time 33, processing module 27 can allow image acquisition module 25 to produce photo 32 and utilize encryption/decryption module 26 to produce encryption photo 31.When encrypting photo 31 and needing deciphering, if when the generation time of the first key 29 is not more than first effective time 33, it is the second key 30 that processing module 27 can set the first key 29, and controls encryption/decryption module 26 and enter deciphering to encryption photo 31.Or if when the generation time of the first key 29 is more than first effective time 33, processing module 27 can control encryption/decryption module 26 and enter deciphering according to the second key 30 to encryption photo 31.Wherein, the condition that can be decrypted be when the second key 30 equal the first key 29 and the generation time length of the second key 30 more than second effective time 34 time, processing module 27 can control encryption/decryption module 26 enabling decryption of encrypted photo 31 to reduce photo 32.
For example, the first effective time 33 that user can set the first key 29 is set to 3 hours, within these 3 hours, user can use this image capturing device 10 utilizing physiological characteristic to make image encryption and decryption to carry out the function of taking pictures and being encrypted by photo 32, once after more than 3 hours, just cannot take pictures again.On the other hand, within these 3 hours, user can utilize encryption/decryption module 26 and this first key 29 enabling decryption of encrypted photo 31, to inspect captured photo 32.Thus, just in case when this image capturing device 10 is lost, once more than after the first effective time 33 of the first key 29, this image capturing device 10 utilizing physiological characteristic to make image encryption and decryption just cannot carry out the function of image capture, and user also need not worry that the photo 32 in it has the problem leaked.After the generation time of the first key 29 is more than the first effective time 33, the iris image that user can take user again obtains the second key 30, with enabling decryption of encrypted photo 31, to browse photo 32.
Illustrate further, this camera 100 utilizing physiological characteristic to make image encryption and decryption of this invention more can comprise a display module 28, this display module 28 can be a screen, it can comprise an interface to show order prompting message when a plurality of first iris images 22 of acquisition or a plurality of second iris image 24, how carry out collection iris image order to point out user.
Please refer to Fig. 2, is for the physiological characteristic that utilizes of the embodiment of the present invention makes the schematic diagram of the image capturing device of image encryption and decryption.Be enforcement of illustrating using camera 100 as the image capturing device carrying out encryption and decryption in the present embodiment, but not as limit.When using this to utilize camera 100 to take pictures, first the action of image capture must be carried out to the first iris image 22 of a plurality of first user 21, one first key 29 is produced according to this plurality of first iris image 22 again by the encryption/decryption module 26 in camera 100, then be an encryption photo 31 through this camera 100 produced photo that carries out taking pictures, its cipher mode is then through the first key 29 to be encrypted.
When encryption photo 31 content that user produces for this camera 100 of viewing, if now encryption/decryption module 26 has one second key 30 and this second key 30 equals the first key 29, user just can pass through encryption/decryption module 26 and is decrypted, to reduce photo 32 captured originally encryption photo 31 to use the second key 30.If but ageing out of date without the second key 30 or the second key 30, the action of image capture now just must be carried out to the second iris image 24 of a plurality of second user 23, wherein a plurality of second user 23 must equal a plurality of first user 21, because everyone iris all has uniqueness, therefore also can equal the first key 29 through the second key 30 that a plurality of second iris image 24 produces, encryption/decryption module 26 just can utilize this second key 30 to reduce to encryption photo 31.
Further instruction, this encryption/decryption module 26 can be a software application or an application program of mobile phone, therefore it also can be executed on a computer 36 or an intelligent mobile phone, when encryption photo 31 is positioned on computer 36 by user, as long as this computer 36 also has the second key 30 to exist, user just can use encryption/decryption module 26 to be decrypted to reduce originally captured photo 32 to this encryption photo 31.
Please refer to Fig. 3, is the flow chart of steps of the encipheror of the image encipher-decipher method in conjunction with physiological characteristic for second embodiment of the invention.This, in conjunction with the image encipher-decipher method of physiological characteristic, is applicable to a camera, and it is as follows that it comprises three steps.
Step S1 utilizes image acquisition module to capture a plurality of first iris images of a plurality of first user.Step S2 utilizes encryption/decryption module to produce one first key according to a plurality of first iris image, and wherein this first key had for one first effective time.Step S3 mean when the first key produced after and within the first effective time time, allow image acquisition module to capture the image of context to produce a photo by processing module, and control encryption/decryption module and utilize the first double secret key photo to be encrypted to produce an encryption photo.Its executive mode as the iris image utilizing camera 100 to capture first user 21 in Fig. 2, and then produces one first key 29 and utilizes this first key 29 to produce encryption photo 31.
Please refer to Fig. 3, is the flow chart of steps of the decrypted program of the image encipher-decipher method in conjunction with physiological characteristic for third embodiment of the invention.It is as follows that it comprises five steps, and first step S4 judges whether the first key exists, and if so, then performs step S5; If not, then step S6 ~ step S8 is performed.Step S5 system controls encryption/decryption module and utilizes the first key pair encryption photo to be decrypted to reduce photo, step S6 system utilizes image acquisition module to capture a plurality of second iris images of a plurality of second user, step S7 utilizes encryption/decryption module to produce one second key according to a plurality of second iris image, second key had for one second effective time, step S8 mean when after the second key equals the first key and the second key is produced within the second effective time time, controlling encryption/decryption module by processing module utilizes the second key pair encryption photo to be decrypted to reduce photo.The executive mode of step S6 ~ step S8 captures a plurality of second iris image 24 as utilized camera 100 in the 2nd figure, and then produces one second key 30 and utilize this second key 30 with enabling decryption of encrypted photo 31.
Comprehensive above-mentioned known, through the present invention the image encipher-decipher method in conjunction with physiological characteristic with utilize physiological characteristic to make the camera of image encryption and decryption, can using the iris of a plurality of user as a key, and using this key as the encryption of photo in camera or deciphering foundation, and then promote the personal secrets of photo.In addition, the present invention also to this cipher key setting one effective time, utilizes the image acquisition function and photo encryption and decryption functions that can control camera this effective time, is stolen to avoid camera and interior photo thereof and uses.
Although the present invention shows especially with reference to its exemplary embodiments and describes, usually know that the knowledgeable understands by for art tool, the various changes in form and details can be carried out it under the spirit not departing from following claim and the present invention that equivalent defined thereof and category.
Claims (10)
1. in conjunction with an image encipher-decipher method for physiological characteristic, be applicable to image capturing device, described image capturing device comprises image acquisition module, encryption/decryption module and processing module, and described image encipher-decipher method system bag is containing ﹕
Perform encipheror, described encipheror Bao Han ﹕
Described image acquisition module is utilized to capture a plurality of first iris image respectively;
Described encryption/decryption module is utilized to produce the first key according to described a plurality of first iris image; And
When described image acquisition module produces photo, control described encryption/decryption module and utilize photo described in described first double secret key to be encrypted to produce encryption photo; And
Perform decrypted program, described decrypted program Bao Han ﹕
Control described encryption/decryption module to utilize and encrypt photo described in described first double secret key and be decrypted to reduce described photo.
2. image encipher-decipher method as claimed in claim 1, wherein said first key had for the first effective time, when after described first key is produced within described first effective time time, allow described image acquisition module to produce described photo by described processing module.
3. image encipher-decipher method as claimed in claim 1, wherein said encryption/decryption module produces the second key according to a plurality of second iris image, when described second key equals described first key, control described encryption/decryption module by described processing module and utilize and encrypt photo described in described second double secret key and be decrypted to reduce described photo.
4. image encipher-decipher method as claimed in claim 3, wherein said second key had for the second effective time, time after described second key is produced within described second effective time, allowed described encryption/decryption module to utilize to encrypt photo described in described second double secret key to be decrypted to reduce described photo by described processing module.
5. image encipher-decipher method as claimed in claim 1, wherein said image capturing device more comprises display module, and described image encipher-decipher method more comprises: use described display module to show order prompting message during the described a plurality of first iris image of acquisition.
6. utilize physiological characteristic to make an image capturing device for image encryption and decryption, bag containing ﹕ image acquisition module, is capture a plurality of first iris image or in order to produce photo; Encryption/decryption module is produce the first key according to described a plurality of first iris image and utilize photo described in described first double secret key to be encrypted to produce encryption photo, or utilizes and encrypt photo described in described first double secret key and be decrypted; And processing module, be control described encryption/decryption module to utilize described first key to produce described encryption photo, or control described encryption/decryption module and utilize described in described first secret key decryption and encrypt photo to reduce described photo.
7. image capturing device as claimed in claim 6, wherein said first key had for the first effective time, when after described first key is produced within described first effective time time, allow described image acquisition module to produce described photo by described processing module.
8. image capturing device as claimed in claim 6, wherein said encryption/decryption module produces the second key according to a plurality of second iris image, when described second key equals described first key, control described encryption/decryption module by described processing module and utilize and encrypt photo described in described second double secret key and be decrypted to reduce described photo.
9. image capturing device as claimed in claim 8, wherein said second key had for the second effective time, time after described second key is produced within described second effective time, allowed described encryption/decryption module to utilize to encrypt photo described in described second double secret key to be decrypted to reduce described photo by described processing module.
10. image capturing device as claimed in claim 6, more comprises display module to show order prompting message during the described a plurality of first iris image of acquisition.
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| CN201410175857.7A CN105025203B (en) | 2014-04-29 | 2014-04-29 | With reference to the image encipher-decipher method and its image capturing device of physiological characteristic |
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| CN201410175857.7A CN105025203B (en) | 2014-04-29 | 2014-04-29 | With reference to the image encipher-decipher method and its image capturing device of physiological characteristic |
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| CN105025203B (en) | 2018-05-04 |
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