CN107918752A - Single chip secure fingerprint recognition system - Google Patents
Single chip secure fingerprint recognition system Download PDFInfo
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- CN107918752A CN107918752A CN201610877231.XA CN201610877231A CN107918752A CN 107918752 A CN107918752 A CN 107918752A CN 201610877231 A CN201610877231 A CN 201610877231A CN 107918752 A CN107918752 A CN 107918752A
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- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003993 interaction Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000007474 system interaction Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Collating Specific Patterns (AREA)
- Image Input (AREA)
Abstract
A kind of single chip secure fingerprint recognition system, including：Finger print acquisition module, Finger print characteristic abstract module, encryption/decryption module, memory module, fingerprint identification module and communication module.The present invention is by traditional finger print acquisition module and Finger print characteristic abstract module, encryption/decryption module, memory module, fingerprint identification module, communication module, the security fingerprint identifying system for being integrated into one, whole Finger print characteristic abstract, fingerprint register, fingerprint comparison and template storage are completed in internal system, again by information such as finger prints processing results, host is fed back to by encrypted scheme, then result is decrypted by host prompting is carried out to user by human-computer interaction and operated.The present invention compares conventional fingerprint identifying system, improves security, saves the development time, reduce manpower expenditure, reduce development difficulty and development cost, saves memory space, realize the miniaturization of fingerprint recognition system.
Description
Technical field
The present invention relates to fingerprint recognition field, more particularly to a kind of single chip secure fingerprint recognition system.
Background technology
Existing fingerprinting scheme is generally by fingerprint sensor, fingerprint algorithm processor or fingerprint sensor, mobile phone
Baseband chip forms a set of fingerprint recognition system.But current fingerprint sensor is the plaintext fingerprint image of output, so
Under the pattern of traditional mcu- fingerprint sensors, it is necessary to which fingerprint image can just be got by obtaining equipment, but be adopted on mobile phone
Just it is easy to steal the fingerprint image of user by cell phone system with this structure, since the fingerprint characteristic of people has and can not replace
It is transsexual, once leakage can cause heavy losses to user.
At present applied to mobile phone fingerprinting scheme be by fingerprint sensor by spi interfaces directly with mobile phone baseband core
Piece is connected, and fingerprint sensor uploads to baseband chip after completing the collection of finger-image, and baseband chip is carried by software mode
Print feature, is matched by the fingerprint template information with registration to realize.Fingerprint sensor applies to finger print mobile phones and needs
Complete transplanting work of the fingerprint sensor in mobile phone kernel, fingerprint algorithm is transplanted in Android system, it is necessary to
Safe memory space is found in Android system to store fingerprint feature information.Since android is one open
System, to avoid finger print information from maliciously being intercepted, existing implementation is by the way that finger print information is encrypted and in origin operation system
Isolate a TEE system and individually complete finger prints processing, development difficulty is big, it is necessary to specific secure memory space.
Furthermore traditional finger print information will obtain safeguard protection, the access of fingerprint algorithm and masterplate need to pass through Trustzone
Technology runs fingerprint relevant treatment in TEE environment.But Trustzone technologies are subject to security, development difficulty, secrecy
Property etc. composite factor influence, cause to develop that threshold is high, and technical difficulty is big, the construction cycle is long and exploitation input is big, it is necessary to special
Development company support.
So realize that existing fingerprinting scheme introduces technical difficulty, development time and the exploitation input of safety measure all
It is huge, it is also necessary to independent safety zone, the secure operating system of exploitation complexity are built on chip, to fingerprint and template
Information carries out encryption and decryption, transplanting algorithm for recognizing fingerprint etc..Secondly as the opening of Android system, there are finger print information quilt
The security risk of malice interception.
The content of the invention
Present invention aim to address safety issue existing in the prior art, the complexity problem of system, exploitation threshold
The problems such as high and development cost is high, there is provided a kind of simple, safety and the fingerprint recognition system of miniaturization.
To achieve these goals, the single chip secure fingerprint recognition system that the present invention proposes, including：Fingerprint collecting mould
Block, Finger print characteristic abstract module, encryption/decryption module, memory module, fingerprint identification module and communication module.
The finger print acquisition module, is made of traditional fingerprint sensor, for gathering fingerprint, generation fingerprint image, simultaneously
Fingerprint image is pre-processed, pretreated fingerprint image data is transferred to the fingerprint spy by the finger print acquisition module
Levy extraction module.
The Finger print characteristic abstract module, the fingerprint image data for finger print acquisition module transmission to be come are referred to
Line feature extraction；Go out required finger print information one further according to the feature extraction of fingerprint algorithm, using finger print information one as fingerprint
Template, and be stored in memory RAM.
The encryption/decryption module, for the fingerprint template in memory RAM to be encrypted according to specific Encryption Algorithm, obtains
To encrypted fingerprint template, while encryption and decryption secret key is produced, be stored in the memory module；The encryption/decryption module, is also used
Encrypted fingerprint feature information in the reading memory module, and according to specific decipherment algorithm encryption and decryption secret key pair
Fingerprint template is decrypted, and obtains finger print information two.
The memory module, is the internal storage device of chip, for transmitting the encrypted finger come to encryption/decryption module
Line characteristic information is stored and read, to ensure the safety of finger print information.
The fingerprint identification module, for carrying out fingerprint matching computing, obtains the result of fingerprint recognition.
The communication module, is responsible for being encrypted between main control computer communicating, to the finger of fingerprint identification module processing
Line recognition result is encrypted, and encrypted fingerprint recognition result is fed back to main control computer.
Further, the Finger print characteristic abstract mode is Digital Image Processing, the number such as includes but not limited to draw high, filters
Word image procossing.
Further, the specific Encryption Algorithm and decipherment algorithm are one kind in AES or SM4 algorithms.
Further, the fingerprint feature information includes but not limited to fingerprint masterplate and encryption and decryption secret key.
Further, the fingerprint matching computing of the fingerprint identification module is：By the finger print acquisition module and the finger
The finger print information one of line characteristic extracting module generation is used as fingerprint template, believes with the cryptographic fingerprint being stored in the memory module
Breath is decrypted to obtain finger print information two by encryption/decryption module, is compared, draws the result of fingerprint recognition.
Further, the main control computer is master control mcu or cpu.
The single chip secure fingerprint recognition system that this patent provides, fingerprint recognition is exported by traditional fingerprint image and is improved
For simply export encrypted fingerprint recognition as a result, by the feature information processing of fingerprint, encrypting, being stored in a chips
Complete in portion.Its advantage is：
1st, security is improved：It is of the invention independently to realize fingerprint collecting in fingerprint recognition module with identification, baseband chip
And the specific processing of fingerprint image is not involved in, it is merely responsible for simple recognition result and judges fundamentally solve at baseband chip
User fingerprints information leakage security risk problem caused by managing fingerprint recognition.
2nd, development time and exploitation manpower is greatly saved, reduces development difficulty and cost：Using the present invention program, only
App developer is needed to carry out brief encrypted instruction by general spi or usart interfaces and finger print safety identifying system
Interaction can complete finger print mobile phones access, substantially reduce manpower costs and time overhead.
3rd, fingerprint algorithm need not be transplanted and is transplanted to Android system, without independent secure storage section, it is empty to save storage
Between, realize the miniaturization of fingerprint recognition system.
Brief description of the drawings
The system framework figure of the single chip secure fingerprint recognition system of Fig. 1 preferred embodiment of the present invention；
The work flow diagram of the single chip secure fingerprint recognition system of Fig. 2 preferred embodiment of the present invention.
Embodiment
Illustrate the preferred embodiment of the present invention below in conjunction with the accompanying drawings, specific embodiment described herein is only solving
The present invention is released, is not intended to limit the present invention.
As shown in Figure 1, single chip secure fingerprint recognition system provided by the invention, including：Finger print acquisition module 100, refer to
Line characteristic extracting module 200, encryption/decryption module 300, memory module 400, fingerprint identification module 500 and communication module 600.Fingerprint
Acquisition module 100, is made of traditional fingerprint sensor.Memory module 400, is the internal storage device of chip.Communication module
600, it is responsible for being encrypted between main control computer communicating.
As shown in Fig. 2, the workflow of the single chip secure fingerprint recognition system of the preferred embodiment of the present invention is：
Step 1, finger print acquisition module 100 gathers user fingerprints；
Step 2, finger print acquisition module 100 generates fingerprint image, and fingerprint image is pre-processed, will be pretreated
Fingerprint image data is transferred to Finger print characteristic abstract module 200；
Step 3, finger print acquisition module 100 is transmitted the fingerprint image data come and is referred to by Finger print characteristic abstract module 200
Line feature extraction, Finger print characteristic abstract mode are Digital Image Processing, include but not limited to draw high, filter etc. at digital picture
Reason；Go out required finger print information one further according to the feature extraction of fingerprint algorithm, using finger print information one as fingerprint template, and deposit
Enter in memory RAM；
Step 4, the fingerprint template in memory RAM is encrypted encryption/decryption module 300 according to specific Encryption Algorithm, obtains
To encrypted fingerprint template, while encryption and decryption secret key is produced, be stored in the memory module；
Step 5, the encrypted fingerprint feature information that memory module 400 carrys out the transmission of encryption/decryption module 300 stores
And reading, to ensure the safety of finger print information；Fingerprint feature information includes but not limited to fingerprint masterplate and encryption and decryption secret key；
Step 6, encryption/decryption module 300 reads the encrypted fingerprint feature information in memory module 400, and according to specific
Decipherment algorithm be decrypted with encryption and decryption secret key pair fingerprint template, obtain finger print information two；Spy described in the present embodiment
It can be a kind of in AES or SM4 algorithms to determine Encryption Algorithm and decipherment algorithm；
Step 7, fingerprint identification module 500 carries out fingerprint matching computing；In the present embodiment, fingerprint matching computing is：It will refer to
The finger print information one that line acquisition module 100 and Finger print characteristic abstract module 200 generate is used as fingerprint template, with being stored in storage mould
Cryptographic fingerprint information in block 400 is decrypted to obtain finger print information two by encryption/decryption module, is compared, and draws finger
The result of line identification；In the present embodiment, the result of fingerprint recognition passes through or does not pass through for comparison；
Step 8, the fingerprint recognition result that communication module 600 handles fingerprint identification module 500 is encrypted, and will encryption
Fingerprint recognition result afterwards feeds back to main control computer；Herein, main control computer is master control mcu or cpu.
The detailed description and the accompanying drawings of the embodiment of the present invention are only intended to the explanation present invention, rather than limitation by claim and
The scope of the present invention that its equivalent defines.
Claims (6)
- A kind of 1. single chip secure fingerprint recognition system, it is characterised in that including：Finger print acquisition module, Finger print characteristic abstract mould Block, encryption/decryption module, memory module, fingerprint identification module and communication module；The finger print acquisition module, is made of traditional fingerprint sensor, for gathering fingerprint, generating fingerprint image and to referring to Print image is pre-processed, and pretreated fingerprint image data is transferred to the fingerprint characteristic and carried by the finger print acquisition module Modulus block；The Finger print characteristic abstract module, it is special that the fingerprint image data for finger print acquisition module transmission to be come carries out fingerprint Sign extraction；Go out required finger print information one further according to the feature extraction of fingerprint algorithm, using finger print information one as fingerprint template, And it is stored in memory RAM；The encryption/decryption module, for the fingerprint template in memory RAM to be encrypted according to specific Encryption Algorithm, is added Close fingerprint template, while encryption and decryption secret key is produced, it is stored in the memory module；The encryption/decryption module, is additionally operable to read The encrypted fingerprint feature information in the memory module is taken, and according to specific decipherment algorithm encryption and decryption secret key pair fingerprint Template is decrypted, and obtains finger print information two；The memory module, is the internal storage device of chip, special for transmitting the encrypted fingerprint come to encryption/decryption module Reference breath is stored and read, to ensure the safety of finger print information；The fingerprint identification module, for carrying out fingerprint matching computing, obtains the result of fingerprint recognition；The communication module, is responsible for being encrypted between main control computer communicating, and the fingerprint of fingerprint identification module processing is known Other result is encrypted, and encrypted fingerprint recognition result is fed back to main control computer.
- 2. single chip secure fingerprint recognition system as claimed in claim 1, it is characterised in that the Finger print characteristic abstract mode For Digital Image Processing.
- 3. single chip secure fingerprint recognition system as claimed in claim 1, it is characterised in that the specific Encryption Algorithm and Decipherment algorithm is one kind in AES or SM4 algorithms.
- 4. single chip secure fingerprint recognition system as claimed in claim 1, it is characterised in that the fingerprint feature information includes Fingerprint masterplate and encryption and decryption secret key.
- 5. single chip secure fingerprint recognition system as claimed in claim 1, it is characterised in that the finger of the fingerprint identification module Line matching operation is：The finger print information one that the finger print acquisition module and the Finger print characteristic abstract module are generated is as fingerprint Template, is decrypted to obtain fingerprint and believes with the cryptographic fingerprint information that is stored in the memory module by encryption/decryption module Breath two, is compared, draws the result of fingerprint recognition.
- 6. single chip secure fingerprint recognition system as claimed in claim 1, it is characterised in that the main control computer is master control mcu Or cpu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877231.XA CN107918752A (en) | 2016-10-08 | 2016-10-08 | Single chip secure fingerprint recognition system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877231.XA CN107918752A (en) | 2016-10-08 | 2016-10-08 | Single chip secure fingerprint recognition system |
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| CN107918752A true CN107918752A (en) | 2018-04-17 |
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Citations (6)
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| CN1885315A (en) * | 2006-05-26 | 2006-12-27 | 上海一维科技有限公司 | Embedded single secure chip biological fingerprint recognition system and method thereof |
| CN101271513A (en) * | 2007-03-21 | 2008-09-24 | 成都方程式电子有限公司 | Fingerprint recognition system chip and implementing method thereof |
| CN101470783A (en) * | 2007-12-25 | 2009-07-01 | 中国长城计算机深圳股份有限公司 | Identity recognition method and device based on trusted platform module |
| US20130094724A1 (en) * | 2011-10-18 | 2013-04-18 | King Fahd University Of Petroleum And Minerals | Method of performing fingerprint matching |
| CN105913109A (en) * | 2015-11-16 | 2016-08-31 | 孙立民 | Fingerprint encrypted EID financial card and realization method |
| CN105975837A (en) * | 2016-06-12 | 2016-09-28 | 北京集创北方科技股份有限公司 | Biological feature recognition device and method and biological feature template registration method |
-
2016
- 2016-10-08 CN CN201610877231.XA patent/CN107918752A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1885315A (en) * | 2006-05-26 | 2006-12-27 | 上海一维科技有限公司 | Embedded single secure chip biological fingerprint recognition system and method thereof |
| CN101271513A (en) * | 2007-03-21 | 2008-09-24 | 成都方程式电子有限公司 | Fingerprint recognition system chip and implementing method thereof |
| CN101470783A (en) * | 2007-12-25 | 2009-07-01 | 中国长城计算机深圳股份有限公司 | Identity recognition method and device based on trusted platform module |
| US20130094724A1 (en) * | 2011-10-18 | 2013-04-18 | King Fahd University Of Petroleum And Minerals | Method of performing fingerprint matching |
| CN105913109A (en) * | 2015-11-16 | 2016-08-31 | 孙立民 | Fingerprint encrypted EID financial card and realization method |
| CN105975837A (en) * | 2016-06-12 | 2016-09-28 | 北京集创北方科技股份有限公司 | Biological feature recognition device and method and biological feature template registration method |
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