CN102222389A - Realization method and device of fingerprint comparison in financial IC (integrated circuit) card - Google Patents
Realization method and device of fingerprint comparison in financial IC (integrated circuit) card Download PDFInfo
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Abstract
The invention relates to a realization method and a device of fingerprint comparison in a financial IC (integrated circuit) card. The device for the fingerprint comparison in the financial IC card comprises a fingerprint and IC card reading and writing integration device (hereinafter referred to as integration device), a PC machine or terminal, and a bank background, wherein the integration device and the PC machine or the terminal are connected by a Rs232 or a USB interface of a switching board; the PC machine or the terminal communicates with the bank background by a TCP/IP (transmission control protocol/internet protocol) mode; and the realization process comprises three parts, such as fingerprint template registration, comparison in a fingerprint character IC card and secondary authentication of a background server. The invention has the beneficial effects that the problems that the data exchange is inconvenient and the data transmission can be not standardized in the existing bank fingerprint payment service are solved; fingerprint data extraction and the authenticity, the integration and the identifiability in the transformation process are guaranteed by the digital signing technology; dual-factor authentication based on the biological character recognition is formed by body authentication of an IC medium and the fingerprint comparison of a card holder; and the promotion and use difficulties of the fingerprint recognition technology in a bank service system is reduced, and the security is enhanced.
Description
Technical field
The invention belongs to field of information security technology, be specifically related to the implementation method and the device of fingerprint comparison in a kind of financial IC card.
Background technology
In traditional consumption and payment means, we have gone through the change from the cash to the bank card, in this changes, we realize swipe the card more more convenient than cash, also safer.But the case that credit card is stolen, the deposit card password is cracked occurs repeatedly, in case this modes of payments does not thoroughly change embezzlement of bank card or loses inconvenience and the fund loss problem of being brought.
Along with the maturation of fingerprint technique, and the widespread use in bank's built-in system safety precaution, for fingerprint technique externally applying in the behavior of client's consumption and payment established good basis.Use the fingerprint payment in banking system, need set up fingerprint identification system on the bank backstage usually, be used for the registration and the authentication of client's fingerprint, need insert the fingerprint fetch equipment, on technology realizes, do not have problems at the various transaction channels of front end, feasible fully.
But, promote the fingerprint payment according to above-mentioned pattern, can run into some problems, be subjected to the restriction of some factors, the retrofit work amount that mainly shows banking system is bigger, especially do not have the swapace and the transmission standard of finger print data by the inter-bank transaction of Unionpay, make fingerprint payment transaction be confined to one's own profession and part, influence carrying out of fingerprint payment transaction.Simultaneously, under this pattern, the finger print data safety of transmission also is subjected to the threat of various attack, has potential safety hazards such as data playback, hijack attack, network fraud.
On March 15th, 2011, People's Bank of China's issue " People's Bank of China is about advancing the suggestion of financial IC card application work ", decision formally starts bank card chip migration work in China, to push forward financial IC card during " 12 " comprehensively and use, to promote the industrial upgrading and the sustainable development of Chinese Bank Card.
Financial IC card widely popularize application, the condition that provides of carrying out for the fingerprint payment, at first, bank card becomes IC-card by magnetic stripe card, has not only increased card safety, also provides the space for the finger print information storage, simultaneously, IC-card has stronger processing power, can realize fully that in card the comparison of fingerprint is handled, for local authentication provides condition.In bank card chip migration work, realize the IC-card read-write operation, must relate to the transformation of financial machine and tool, thus, the integrated opportunity of having created for the fingerprint read module, along with going deep into of bank card chip migration work, the realization that transform the fingerprint payment as of banking system front and back end provides condition.
Summary of the invention
The implementation method and the device that the purpose of this invention is to provide fingerprint comparison in a kind of financial IC card, solving the exchanges data inconvenience that exists in the present bank fingerprint payment transaction and data transmission can't standardized problem; Guarantee authenticity, integrality and the identifiability of data in finger print data extraction, the transmission course; Reduce fingerprint identification technology and in banking system, promote the use of difficulty, strengthen the security that fingerprint technique is used.
The objective of the invention is to be achieved through the following technical solutions:
Fingerprint comparison device in a kind of financial IC card, comprise integrating device, PC or terminal, bank backstage, described integrating device is made up of fingerprint read module, IC-card module for reading and writing and card extender, between fingerprint read module and the card extender, all be connected between IC-card module for reading and writing and the card extender by the Rs232 interface, integrating device and PC or terminal are connected by the Rs232 or the USB interface of card extender, PC or terminal communicate by TCP/IP mode and bank backstage, and the bank backstage comprises background server and database.
The implementation method of fingerprint comparison in a kind of financial IC card may further comprise the steps:
1) fingerprint template registration
The client opens an account in a bank, handle IC-card after, by fingerprint read module registered fingerprint template, system is kept at fingerprint template and corresponding finger sequence number in bank of deposit's background data base, simultaneously, data are write in the IC-card, and data encryption is preserved, and the finger sequence number is according to certain priority arrangement;
2) comparison in the fingerprint characteristic IC-card
The client is when handling bank transaction, if this transaction needs identity validation, so just can carry out identity validation by fingerprint authentication, specific operation process: IC-card is inserted or close IC-card read write line, the client restrains the finger of having gathered on the collection head of fingerprint read module, fingerprint is gathered by the fingerprint read module by system, and the feature that takes the fingerprint, directly send the IC-card module for reading and writing then to, the IC-card module for reading and writing sends to IC-card by contact (ISO7816) or noncontact (ISO14443) agreement with fingerprint characteristic, in IC-card, finish the comparison of fingerprint characteristic and fingerprint template, during the 1:N comparison, the order of comparison carries out according to finger priority, 1:1 when comparison, number finds corresponding templates to compare according to finger;
3) re-authentication of bank's background server
After fingerprint comparison passes through in IC-card, by IC-card fingerprint template and finger sequence number by comparison are carried out the SHA-1 computing, generate the HASH value, by client's IC-card private key the HASH value is signed then, system sends to the credit card issuer background server with the HASH signed data by network, above-mentioned signature is tested label, test sign pass through after, the fingerprint template of this client's correspondence in the background server is carried out the SHA-1 computing, if two ends HASH value is identical, show that then IC-card is consistent with the fingerprint template of background server, prove in the IC-card of this authentication result from the client to compare, and fingerprint template is consistent with the background server end in the card.
Beneficial effect of the present invention is: 1, solved the finger print data exchange that exists in bank's fingerprint payment transaction and the bottleneck problem of data transmission by fingerprint comparison mode in the financial IC card, will play the effect actively pushed forward to fingerprint technique applying in industry; 2, in a single day the fingerprint template that produces by the fingerprint read module writes in the IC-card, will adopt cipher mode and according to the storage of finger priority, fingerprint template is card release never, the fingerprint comparison of realization 1:1 and 1:N in card; 3, in the fingerprint comparison process, be connected by fingerprint read module and IC-card module for reading and writing are inner, and the dynamic encryption technology between IC-card read write line and the IC-card, strengthen fingerprint characteristic data transmission safety confidentiality, guarantee that the outside can't obtain and duplicate; 4, pass through the re-authentication of interior fingerprint comparison of local IC-card and server end, both realized the fingerprint identification, guaranteed the consistance of IC-card and database fingerprint template again, realize uniqueness, authenticity, integrality and identifiability that client identity is confirmed, stopped potential safety hazards such as data tampering, data playback, hijack attack, network fraud; 5, by the authentication of IC medium itself and holder's fingerprint comparison, constitute genuine double factor authentication, meet the relevant regulations of the People's Bank fully.
Description of drawings
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the implementation method of fingerprint comparison in the described a kind of financial IC card of the embodiment of the invention and the apparatus structure synoptic diagram of device;
Fig. 2 is the implementation method of fingerprint comparison in the described a kind of financial IC card of the embodiment of the invention and the fingerprint template registration schematic diagram of device;
Fig. 3 is the implementation method of fingerprint comparison in the described a kind of financial IC card of the embodiment of the invention and the finger print identifying schematic diagram of device;
Fig. 4 is the implementation method of fingerprint comparison in the described a kind of financial IC card of the embodiment of the invention and the interior fingerprint comparison process flow diagram of IC-card of device;
Fig. 5 is the implementation method of fingerprint comparison in the described a kind of financial IC card of the embodiment of the invention and the background server re-authentication process flow diagram of device.
Among the figure:
1, integrating device; 1.1, the fingerprint read module; 1.2, the IC-card module for reading and writing; 1.3, card extender; 1.4, the fingerprint read head; 1.5, IC-card; 2, PC or terminal; 3, bank backstage; 3.1, background server; 3.2, database.
Embodiment
As shown in Figure 1, fingerprint comparison device in the described a kind of financial IC card of the embodiment of the invention, comprise integrating device 1, PC or terminal 2, bank backstage 3, described integrating device 1 is by fingerprint read module 1.1, IC-card module for reading and writing 1.2 and card extender 1.3 are formed, between fingerprint read module 1.1 and the card extender 1.3, all be connected between IC-card module for reading and writing 1.2 and the card extender 1.3 by the Rs232 interface, integrating device 1 and PC or terminal 2 are connected by the Rs232 or the USB interface of card extender 1.3, PC or terminal 2 communicate by TCP/IP mode and bank backstage 3, and bank backstage 3 comprises background server 3.1 and database 3.2.
Fingerprint read module 1.1 obtains fingerprint image by fingerprint read head 1.4, also have functions such as fingerprint image processing, feature extraction and fingerprint template synthesize simultaneously, client's fingerprint template and fingerprint characteristic that it generated are binary data, and every piece of fingerprint template or feature sizes are in 256 bytes.
The main effect of card extender 1.3 is to connect tie between each module, comprise that fingerprint template and feature that fingerprint read module 1.1 is produced are transferred to IC-card module for reading and writing 1.2 by card extender 1.3, instruct to issue by card extender 1.3 between integrating device 1 and PC or the terminal 2 and respond with data, in the finger print identifying process, fingerprint characteristic is only in integrating device 1 internal transmission, and the probability that data are intercepted reduces greatly.
IC-card module for reading and writing 1.2 is used for the read-write operation and the communication data encryption and decryption of IC-card 1.5.The communication mode of IC-card 1.5 is divided into two kinds; contact ISO7816 agreement and contactless ISO14443 agreement; which kind of mode no matter; communication between the module and card all needs dynamic encryption, and the communication encryption mode adopts symmetric cryptography between the module and card, the session key difference of each communication; session key is produced at random by IC-card 1.5; master key by module and card both sides agreement is protected, and after the session key of master key protection passes to IC-card 1.5 modules, is untied and can be used by master key.Through the data transmission of dynamic encryption, strengthened the safety of communicating by letter between IC-card module for reading and writing 1.2 and the IC-card 1.5 greatly.
IC-card 1.5 adopts intelligent card chip, supports the application standard of PKI standard and the PBOC of bank.In the fingerprint payment, in IC-card, preserve client's fingerprint template, fingerprint template quantity mostly is 10 pieces of fingers most, and according to application habit, stores with the ciphertext form by finger priority.It is in order to find matching template as early as possible when 1:N compares, to point priority and arrange from high to low according to the order of thumb, forefinger, middle finger, the third finger, little finger of toe that finger priority purpose is set.
PC or terminal 2 play the effect of forming a connecting link, and to being responsible for the control to integrating device 1 down, are responsible for the higher level to the data communication of bank's background server 3.1.During client's fingerprint register,, also fingerprint template to be transferred to bank backstage 3 and preserve except fingerprint template being write the IC-card 1.5; During the client identity authentication, after fingerprint comparison passes through in card, carry out re-authentication with the signature form on the backstage.
The implementation method of fingerprint comparison in the described a kind of financial IC card of the embodiment of the invention comprises re-authentication three parts of comparison in fingerprint template registration, the fingerprint characteristic IC-card, background server.Wherein, comparison belongs to local finger print identifying in the IC-card of fingerprint characteristic, and the re-authentication of background server is fingerprint template HASH value checking afterwards, and purpose is the consistance of verification IC-card and server fingerprint template.
As shown in Figure 2, be the described client's fingerprint template registration of the embodiment of the invention, the client is after bank has opened the IC-card account, if the needs of fingerprint payment are arranged, so just can add and do this business, add when doing fingerprint payment transaction, finish client's fingerprint template registration process.
Fingerprint template registration implementation procedure is described as follows:
1) client adds at site cabinet face and does fingerprint payment transaction, at first reads IC-card 1.5 operations, by the IC-card read write line IC-card 1.5 is carried out the authentication of off line card, by PIN code checking client identity, checking by after just can carry out next step fingerprint template registration;
2) client gathers fingerprint by fingerprint read module 1.1 and handles, form fingerprint characteristic, this process need triplicate carries out algorithm with three fingerprint characteristics then and synthesizes, forms fingerprint template, and the synthetic template purpose of feature is to enrich true feature, removal pseudo-characteristic;
3) after the fingerprint template of each finger forms, deliver to PC or terminal 2 through on the card extender 1.3, by the latter data set is wrapped and delivered to bank backstage 3, the existing safety encipher mechanism of banking system that still adopts is encrypted in the network service in this process;
4) data sent of bank's background server 3.1 receiving front-ends are carried out message and are handled, and fingerprint template information is corresponding with customer information, be saved in client's fingerprint template database 3.2, and modification client identity authentication mode are the fingerprint mode;
5) after the success of backstage transaction processing, the IC-card process of writing of beginning front end, the fingerprint template data send to IC-card module for reading and writing 1.2 through card extender, after IC-card module for reading and writing 1.2 is received instruction, do the exchange of dynamic session earlier, finger sequence number and fingerprint template after will encrypting then send to IC-card 1.5;
6) IC-card 1.5 receives the fingerprint template data, with the session key deciphering, encrypts fingerprint template with storage key then, data is write in the fingerprint repository of card FLASH, if corresponding finger is gathered, then covers processing.
It more than is the registration process of one piece of fingerprint template, bank can carry out the registration of many pieces of fingers as required, generally register 2 pieces at least, registration is 10 pieces at most, in the practical operation, select the measured finger registration of priority height and matter, finger priority is arranged from high to low according to the order of thumb, forefinger, middle finger, the third finger, little finger of toe.
Shown in Fig. 3-5, be the described client's fingerprint identity validation of the embodiment of the invention, client's finger print identifying is divided into the two large divisions, at first will then the fingerprint comparison result be sent to the backstage and carry out re-authentication by fingerprint comparison in the IC-card.
The implementation procedure of fingerprint comparison is described as follows in the IC-card:
1) before transaction, banking system will be carried out the authentication of off line card and whether enable the fingerprint mode IC-card 1.5, has only IC-card 1.5 legal, that state satisfies, just can carry out next step the interior fingerprint comparison of card;
2) client gathers fingerprint by fingerprint read module 1.1 and handles, and forms fingerprint characteristic, and this process does not need the building-up process of fingerprint template.The fingerprint characteristic that is generated directly sends to IC-card module for reading and writing 1.2 by internal forwarding;
3) after IC-card module for reading and writing 1.2 is received information, do the exchange of dynamic session earlier, to send to IC-card 1.5 through the fingerprint characteristic of encrypting then, if 1:1 fingerprint comparison mode, so also the finger sequence number that upper layer application will be sent together sends to IC-card 1.5;
4) after IC-card 1.5 is received data, by session key deciphering fingerprint characteristic, according to the fingerprint comparison mode, carry out 1:N comparison or 1:1 comparison between fingerprint characteristic and the template, if 1:N comparison mode, IC-card can pursue piece comparison according to the priority orders of finger so, up to the fingerprint template that finds coupling;
5) after fingerprint comparison passes through in the IC-card, to carry out the SHA-1 computing to matching template, form cryptographic hash HASH1, with client private key in the IC-card HASH1 is signed then, certificate serial number, finger sequence number, signed data and IC-card relevant information are returned IC-card module for reading and writing 1.2, and the latter is again giving PC or terminal 2 on the data;
6) at PC or terminal 2 places, application program is wrapped certificate serial number, finger sequence number, signed data, IC-card groups of related information to deliver to the bank backstage, and the network service in this process is encrypted and still prolonged with the existing safety encipher mechanism of banking system.
Bank's background server is decrypted dissection process after receiving the front end message, finds corresponding customer information, and IC-card information is carried out routine checking, for example certificate whether expired, revoke etc., begin to carry out the processing procedure of re-authentication then.
The implementation procedure of re-authentication is described as follows:
1) 3 verification systems signature that IC-card 1.5 is sent in bank backstage is tested label, utilizes client's PKI to solve the cryptographic hash HASH1 of fingerprint template;
2) the fingerprint sequence number of passing through according to coupling in this IC-card is extracted corresponding fingerprint template from database 3.2, carry out the SHA-1 computing, forms cryptographic hash HASH2;
3) judge whether HASH1 is identical with HASH2,, show that then fingerprint template is consistent with database 3.2 in the IC-card if the two is identical.
In whole authentication process, the present invention abides by the PKI system and carries out, and is characterized in utilizing the interior fingerprint comparison of IC-card to replace the proof procedure of client's PIN code, and IC-card and holder are bound together, and has really realized double factor authentication.Simultaneously, test by the digital signature on bank backstage and to sign and the consistency desired result of fingerprint template HASH value, realized authenticity, integrality and the identifiability of client identity affirmation, stop potential safety hazards such as data tampering, data playback, hijack attack, network fraud.
The implementation procedure of the IC-card transaction among the present invention, abide by PBOC standard and bank card networking United Technologies standard fully, the re-authentication that the relates to network service message territory 57 " additional transactions information " that self-defined message transmissions is used " bank card networking United Technologies standard 2.0 second portion message interface standards " of concluding the business, this territory is totally 100 bytes, can be used for CardHolder Informixtion(holder identity information).Therefore, no matter whether credit card issuer belongs to same bank with the receipts single file, as long as according to standard message interface specification design system, can realize going fingerprint payment transaction interior and inter-bank so.
Claims (2)
1. fingerprint comparison device in the financial IC card, comprise integrating device (1), PC or terminal (2), bank backstage (3), it is characterized in that: described integrating device (1) is by fingerprint read module (1.1), IC-card module for reading and writing (1.2) and card extender (1.3) are formed, between fingerprint read module (1.1) and the card extender (1.3), all be connected between IC-card module for reading and writing (1.2) and the card extender (1.3) by the Rs232 interface, integrating device (1) and PC or terminal (2) are connected by the Rs232 or the USB interface of card extender (1.3), PC or terminal (2) communicate by TCP/IP mode and bank backstage (3), and the bank backstage comprises background server (3.1) and database (3.2).
2. the implementation method of the interior fingerprint comparison of financial IC card is characterized in that, may further comprise the steps:
1) fingerprint template registration
After the client opens an account in a bank, handles IC-card (1.5), by fingerprint read module (1.1) registered fingerprint template, system is kept at fingerprint template and corresponding finger sequence number in bank of deposit's background data base (3.2), simultaneously, data are write in the IC-card (1.5), data encryption is preserved, and the finger sequence number is according to certain priority arrangement;
2) comparison in the fingerprint characteristic IC-card
The client is when handling bank transaction, if this transaction needs identity validation, so just can carry out identity validation by fingerprint authentication, specific operation process: IC-card (1.5) is inserted or close IC-card read write line, the client restrains the finger of having gathered on the collection head of fingerprint read module (1.1), fingerprint is gathered by fingerprint read module (1.1) by system, and the feature that takes the fingerprint, directly send IC-card module for reading and writing (1.2) then to, IC-card module for reading and writing (1.2) sends to IC-card (1.5) by contact (ISO7816) or noncontact (ISO14443) agreement with fingerprint characteristic, in IC-card (1.5), finish the comparison of fingerprint characteristic and fingerprint template, during the 1:N comparison, the order of comparison carries out according to finger priority, 1:1 when comparison, number finds corresponding templates to compare according to finger;
3) re-authentication of bank's background server
After fingerprint comparison passes through in IC-card, by IC-card fingerprint template and finger sequence number by comparison are carried out the SHA-1 computing, generate the HASH value, by client's IC-card private key the HASH value is signed then, system sends to credit card issuer background server (3.1) with the HASH signed data by network, above-mentioned signature is tested label, test sign pass through after, the fingerprint template of this client's correspondence in the background server (3.1) is carried out the SHA-1 computing, if two ends HASH value is identical, show that then IC-card is consistent with the fingerprint template of background server (3.1), proves in the IC-card of this authentication result from the client and compares, and fingerprint template is consistent with background server (3.1) end in the card.
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| CN201110182391XA CN102222389A (en) | 2011-06-30 | 2011-06-30 | Realization method and device of fingerprint comparison in financial IC (integrated circuit) card |
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| CN107038360B (en) * | 2016-06-01 | 2023-08-18 | 柳州梓博科技有限公司 | Fingerprint registration method and fingerprint identification method of mobile terminal |
| CN106096549A (en) * | 2016-06-07 | 2016-11-09 | 青岛海信移动通信技术股份有限公司 | A kind of finger print matching method and terminal |
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| CN106503518A (en) * | 2016-10-15 | 2017-03-15 | 成都育芽科技有限公司 | A kind of webserver telesecurity entering device and using method |
| CN106657137A (en) * | 2017-01-17 | 2017-05-10 | 腾讯科技（上海）有限公司 | Software product legitimacy verification method, apparatus and system |
| CN107133499A (en) * | 2017-05-10 | 2017-09-05 | 百望电子发票数据服务有限公司 | A kind of software copyright protecting method, client, service end and system |
| CN107133499B (en) * | 2017-05-10 | 2020-12-18 | 国信电子票据平台信息服务有限公司 | Software copyright protection method, client, server and system |
| CN107885990A (en) * | 2017-11-24 | 2018-04-06 | 天津中德应用技术大学 | Financial Compliance control terminal and its application method |
| CN112287320A (en) * | 2020-11-02 | 2021-01-29 | 刘高峰 | Identity verification method and device based on biological characteristics and client |
| CN115222379A (en) * | 2022-06-14 | 2022-10-21 | 卢东民 | A fast transmission method of mobile financial payment data |
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Application publication date: 20111019 |