CN107369022A

CN107369022A - A kind of recognition methods of legal chip and system

Info

Publication number: CN107369022A
Application number: CN201710060676.3A
Authority: CN
Inventors: 李东声
Original assignee: Tendyron Technology Co Ltd
Current assignee: Tendyron Corp; Tendyron Technology Co Ltd
Priority date: 2017-01-25
Filing date: 2017-01-25
Publication date: 2017-11-21
Anticipated expiration: 2037-01-25
Also published as: CN107369022B

Abstract

The invention discloses a kind of recognition methods of legal chip and system, methods described to include：Reading device sends the M comprising N number of preset instructions pending instructions successively to chip to be read；Chip to be read responds to each pending instruction respectively；Reading device obtains first element set, wherein, first element set includes：The level nature for the response message that chip to be read is responded to each preset instructions respectively, the level nature of each response message include at least one of following key element respectively：At the time of level value, the duration of level rising edge, pulse width, dutycycle, state value and differential signal crosspoint；Reading device carries out the first processing to first element set and obtains the level nature of chip to be read, the result that acquisition is compared with the level nature of legal chip corresponding to the mark of chip to be read with the level nature of chip to be read, in the case where comparing unanimously, it is legal chip to identify chip to be read.

Description

A kind of recognition methods of legal chip and system

Technical field

The present invention relates to recognition methods and the system of a kind of electronic technology field, more particularly to a kind of legal chip.

Background technology

At present, the device to be read of built-in chip, which is increasingly used in, is related to property safety, authentication Field, such as smart card, identity card etc., the chip built in these devices to be read often store identity or property of user etc. Secure data, therefore, the Information Security requirement to built-in chip also can be higher.

Although existing technology can prevent chip to be copied illegally, guarantee data security to a certain extent, It is difficult to very ensure that chip is not copied illegally, such as：Criminal can by key that chip manufacturer reveals, crack The modes such as AES are believed to obtain the user security data of legal device built-in chip storage to be read and chip identification etc. Breath, and by the chip of the data Cun Chudao illegally obtained the devices to be read forged, so, the device to be read of forgery is just deposited Contain with the information such as legal device identical user security data to be read and chip identification, in this case, read Device will be considered that the device to be read of the forgery is legal, and then perform corresponding operating, and the identity and property for endangering user are pacified Entirely.

The content of the invention

Present invention seek to address that above mentioned problem.

It is a primary object of the present invention to provide a kind of recognition methods of legal chip；

Another object of the present invention is to provide a kind of identifying system of legal chip.

To reach above-mentioned purpose, what technical scheme was specifically realized in：

One aspect of the present invention provides a kind of recognition methods of legal chip, including：Reading device to chip to be read according to Secondary transmission M pending instructions, the M pending instructions include N number of preset instructions, wherein, M >=N, M, N are positive integer； The chip to be read receives the M pending instructions successively, and each pending instruction is responded respectively；It is described Reading device obtains first element set, wherein, the first element set includes：The chip to be read is respectively to each institute The level nature for the response message that preset instructions are responded is stated, the level nature of each response message is respectively including following At least one of key element：Level value, the duration of level rising edge, pulse width, dutycycle, state value and differential signal are handed over At the time of crunode；The reading device obtains the level nature of the chip to be read, wherein, the level of the chip to be read The characteristic reading device carries out the first processing to the first element set and obtained；The reading device obtain with it is described The level nature of legal chip corresponding to the mark of chip to be read is compared with the level nature of the chip to be read As a result, in the case of it is determined that comparing unanimously, it is legal chip to identify the chip to be read, wherein, it is described to be treated with described Read the key element of the key element of the level nature of legal chip and the level nature of the chip to be read corresponding to the mark of chip It is identical.

In addition, the reading device obtain legal chip corresponding with the mark of the chip to be read level nature and Before the result that the level nature of the chip to be read is compared, methods described also includes：Level nature acquisition device to Legal chip sends N number of preset instructions successively；The legal chip receives N number of preset instructions successively, respectively to every The individual preset instructions are responded；The level nature acquisition device obtains the second elements combination, wherein, second key element Set includes：The level nature for the response message that the legal chip is responded to each preset instructions respectively, it is each The level nature of the response message includes at least one of following key element respectively：Level value, level rising edge duration, At the time of pulse width, dutycycle, state value and differential signal crosspoint；It is described legal that the level nature acquisition device obtains The level nature of chip, wherein, the level nature of the legal chip will to described second for the level nature acquisition device Element set carries out what second processing obtained, wherein, the second processing is identical with first processing；Server or the reading Take device to obtain and store the mark of the legal chip and the level nature of the legal chip.

In addition, the reading device obtain legal chip corresponding with the mark of the chip to be read level nature and The result that the level nature of the chip to be read is compared, in the case of it is determined that comparing unanimously, identify described continue Coring piece is that legal chip includes：The reading device is by the mark of the chip to be read and the electricity of the chip to be read Flat characteristic is sent to server；The server receives the mark of the chip to be read and the level spy of the chip to be read Property, and the level nature of the legal chip corresponding with the mark of the chip to be read prestored is obtained, by described in The level nature of legal chip is compared with the level nature of the chip to be read, will compare consistent result and sends to institute State reading device；The reading device identifies that the chip to be read is legal chip；Or the reading device obtains in advance The level nature of the legal chip corresponding with the mark of the chip to be read first stored, by the electricity of the legal chip Flat characteristic is compared with the level nature of the chip to be read, in the case of it is determined that comparing unanimously, identifies described treat Reading chip is legal chip；Or the reading device sends the mark of the chip to be read to server；The clothes Device of being engaged in receives the mark of the chip to be read, and obtain prestore it is corresponding with the mark of the chip to be read described The level nature of legal chip, by the level nature of the legal chip corresponding with the mark of the chip to be read send to The reading device；The reading device enters the level nature of the legal chip and the level nature of the chip to be read Row compares, and in the case of it is determined that comparing unanimously, it is legal chip to identify the chip to be read.

In addition, the level for obtaining the legal chip corresponding with the mark of the chip to be read prestored Characteristic includes：The mark of the chip to be read is compared with the mark of the legal chip；It is determined that comparing unanimously In the case of, the level nature of the acquisition legal chip.

In addition, first processing includes：Sort out, store and/or calibrate.

Another aspect of the present invention provides a kind of identifying system of legal chip, including：Reading device, for the coring that continues Piece sends M pending instructions successively, and the M pending instructions include N number of preset instructions, wherein, M >=N, M, N are just Integer；The chip to be read, for receiving the M pending instructions successively, respectively to it is each it is described it is pending instruct into Row response；The reading device, it is additionally operable to obtain first element set, wherein, the first element set includes：It is described to continue The level nature for the response message that coring piece is responded to each preset instructions respectively, the electricity of each response message Flat characteristic includes at least one of following key element respectively：Level value, the duration of level rising edge, pulse width, dutycycle, At the time of state value and differential signal crosspoint；The reading device, it is additionally operable to obtain the level nature of the chip to be read, Wherein, the level nature of the chip to be read is that the reading device obtains to the processing of first element set progress first 's；The reading device, it is additionally operable to obtain level nature and the institute of legal chip corresponding with the mark of the chip to be read The result that the level nature of chip to be read is compared is stated, in the case of it is determined that comparing unanimously, is identified described to be read Chip is legal chip, wherein, the key element of the level nature of the legal chip corresponding with the mark of the chip to be read It is identical with the key element of the level nature of the chip to be read.

In addition, the system also includes：Level nature acquisition device, continued for being obtained in the reading device with described The result that the level nature of legal chip corresponding to the mark of coring piece is compared with the level nature of the chip to be read Before, N number of preset instructions are sent successively to legal chip；The legal chip, it is additionally operable to receive successively described N number of default Each preset instructions are responded by instruction respectively；The level nature acquisition device, it is additionally operable to obtain the second key element collection Close, wherein, second elements combination includes：The response that the legal chip is responded to each preset instructions respectively The level nature of information, the level nature of each response message include at least one of following key element respectively：Level value, electricity At the time of duration of flat rising edge, pulse width, dutycycle, state value and differential signal crosspoint；The level nature Acquisition device, it is additionally operable to obtain the level nature of the legal chip, wherein, the level nature of the legal chip is the electricity Flat characteristic acquisition device carries out second processing to second elements combination and obtained, wherein, the second processing and described the One processing is identical；Server, for obtaining and storing the mark of the legal chip and the level nature of the legal chip；Or Reading device described in person, it is additionally operable to obtain and stores the mark and the level nature of the legal chip of the legal chip.

In addition, the reading device obtain one of in the following manner it is corresponding legal with the mark of the chip to be read The result that the level nature of chip is compared with the level nature of the chip to be read, it is determined that comparing consistent situation Under, it is legal chip to identify the chip to be read：The reading device, be additionally operable to by the mark of the chip to be read with And the level nature of the chip to be read is sent to server；The server, it is additionally operable to receive the chip to be read The level nature of mark and the chip to be read, and obtain the institute corresponding with the mark of the chip to be read prestored The level nature of legal chip is stated, the level nature of the legal chip and the level nature of the chip to be read are compared It is right, consistent result will be compared and sent to the reading device；The reading device, it is additionally operable to identify the chip to be read For legal chip；Or the reading device, be additionally operable to obtain prestore it is corresponding with the mark of the chip to be read The level nature of the legal chip, the level nature of the legal chip and the level nature of the chip to be read are carried out Compare, in the case of it is determined that comparing unanimously, it is legal chip to identify the chip to be read；Or the reading device, It is additionally operable to send the mark of the chip to be read to server；The server, it is additionally operable to receive the chip to be read Mark, and obtain the level nature of the legal chip corresponding with the mark of the chip to be read prestored, will The level nature of the legal chip corresponding with the mark of the chip to be read is sent to the reading device；The reading Device, be additionally operable to the level nature of the legal chip being compared with the level nature of the chip to be read, it is determined that In the case of comparing unanimously, it is legal chip to identify the chip to be read.

In addition, the server or the reading device obtain in the following manner prestore with it is described to be read The level nature of the legal chip corresponding to the mark of chip：Mark and the legal chip to the chip to be read Mark is compared；In the case of it is determined that comparing unanimously, the level nature of the legal chip is obtained.

In addition, first processing includes：Sort out, store and/or calibrate.

As seen from the above technical solution provided by the invention, the invention provides a kind of recognition methods of legal chip And system, the characteristic that the level nature that the instruction sent according to each chip to reading device is responded has differences, obtaining After the mark for taking chip to be read, by the level nature of legal chip corresponding with the mark of chip to be read and chip to be read Level nature be compared, if comparison result is consistent, it is legal chip to illustrate chip to be read, therefore, even if legal The device to be read that the mark of chip is illegally stolen and is stored in other chips to be forged, can also be according to the coring that continues Whether level nature between piece legal chip corresponding with mark unanimously the legitimacy of chip to be read is identified, can Effectively to judge whether the device to be read for being built-in with the chip to be read is legal, improve reading device and identify device to be read The accuracy rate of legitimacy.

Brief description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

Fig. 1 is the flow chart of the recognition methods for the legal chip that the embodiment of the present invention 1 provides；

Fig. 2 is the level nature that legal chip is obtained in the recognition methods for the legal chip that the embodiment of the present invention 1 provides Flow chart；

Fig. 3 is the legitimacy to the intelligent card chip to be read built in smart card to be read that the embodiment of the present invention 1 provides Recognition methods flow chart；

Fig. 4 to Fig. 6 is the acquisition legal intelligence corresponding with the mark of intelligent card chip to be read that the embodiment of the present invention 1 provides The flow chart of the level nature of energy the core of the card piece；

Fig. 7 is the identification for the legitimacy for treating the chip to be read built in reading identity card that the embodiment of the present invention 1 provides The flow chart of method；

Fig. 8, Fig. 9 are the structural representation of the identifying system for the legal chip that the embodiment of the present invention 2 provides.

Embodiment

With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this The embodiment of invention, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made Example, belongs to protection scope of the present invention.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right The limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint are relative Importance or quantity or position.

In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in invention.

The embodiment of the present invention is described in further detail below in conjunction with accompanying drawing.

Embodiment 1

A kind of recognition methods of legal chip is present embodiments provided, Fig. 1 is the knowledge for the legal chip that the present embodiment provides The flow chart of other method, this method mainly include the following steps that (step S101 to S105)：

Step S101, reading device send M pending instructions successively to chip to be read, and M pending instructions include N Individual preset instructions, wherein, M >=N, M, N are positive integer；

In the present embodiment, reading device can be POS, ATM, have NFC function mobile phone, mass transit card swipe the card Device, stored value card card reader, the combination of mobile phone and card reader, combination of PC and card reader etc., chip to be read is arranged on to be read In device, device to be read can be second-generation resident identification card, mass transit card, the smart card with chip, with chip and magnetic stripe Smart card, stored value card etc..By device to be read with the way of contact or cordless access reading device, wherein, contact Mode can be that cordless can include but is not limited to NFC, indigo plant in the default slot of device insertion reading device to be read The modes such as tooth.

In step S101, when device to be read to contact or during cordless access reading device, reading device is to treating Chip to be read built in reading device sends M pending instructions successively.Optionally, reading device is often sent completely one and treated Process instruction, wait for receiving the response message that chip to be read responds this pending instruction, only receiving After the response message that chip to be read is responded to this pending instruction, reading device could start to be sent out to chip to be read Send the operation of next pending instruction；Or reading device can after instruction pending to M is sent completely successively, etc. Chip to be read to be received is pending to this M to instruct the response message responded respectively；Or reading device can be with one While send M pending instructions successively to chip to be read, while receive chip to be read to received it is pending instruct into The response message of row response.

Step S102, chip to be read receive M pending instructions successively, and each pending instruction is rung respectively Should；

In step S102, chip to be read can be with one pending instruction of every reception, just to the pending finger of this reception Order is responded, and the response message responded to this pending instruction received is returned to reading device, and wait to be received Next pending instruction that reading device is sent；Or chip to be read can receive successively to M pending instructions Cheng Hou, restart the operation for instructing and being responded respectively pending to this M；Or chip to be read can on one side successively The M pending instructions that reading device is sent are received, while responded to the pending instruction received, and to reading device Return to the response message responded to the pending instruction received.

Step S103, reading device obtain first element set, wherein, first element set includes：Chip to be read point The level nature of the other response message that each preset instructions are responded, the level nature of each response message include respectively with At least one of lower key element：Level value, the duration of level rising edge, pulse width, dutycycle, state value and differential signal At the time of crosspoint；

In step S103, state value can be the state value of communication interface, and the communication interface includes but is not limited to USB and connect Mouth, NFC interface, COBBAIF and blue tooth interface, this present embodiment is not specifically limited.

In step S103, reading device can be in the sound for receiving chip to be read and being responded to n-th preset instructions After answering information, can also receive chip to be read to m-th it is pending instruct the response message that is responded after, obtain the One elements combination.Also, the key element that the level nature of each response message is included can be with identical, can also be different.

Step S104, reading device obtain the level nature of chip to be read, wherein, the level nature of chip to be read is Reading device carries out what the first processing obtained to first element set；

In step S104, the first processing can use but be not limited to one of following processing mode：

Mode 1：The sound that reading device is responded to the chip to be read in first element set to each preset instructions Each level nature of information is answered to carry out calibration process, and the electricity using the level nature after calibration as chip to be read respectively Flat characteristic；Such as：Can be with controllable scene in calibration range, reading device is to the chip to be read in first element set to each The each level nature for the response message that individual preset instructions are responded carries out correction calibration respectively.

Mode 2：Reading device is responded each to the chip to be read in first element set to each preset instructions The level nature of individual response message is stored, and the level nature using the level nature of storage as chip to be read.

Mode 3：The sound that reading device is responded to the chip to be read in first element set to each preset instructions Each level nature of information is answered to carry out classification processing, such as：Preset instructions are Card Reader instruction, signature command and encrypted instruction, The level nature for the response message that chip to be read is responded to signature command is carried out with chip to be read to encrypted instruction The level nature of the response message of response is classified as one kind, the electricity for the response message that chip to be read is responded to Card Reader instruction Flat characteristic is classified as one kind.

Certainly, the first processing can also be any two or three of combination in above-mentioned three kinds of processing modes, this implementation Example is not specifically limited.

Step S105, reading device obtain the level nature of legal chip corresponding with the mark of chip to be read with continuing The result that the level nature of coring piece is compared, in the case of it is determined that comparing unanimously, it is legal to identify chip to be read Chip, wherein, the key element of the level nature of legal chip corresponding with the mark of chip to be read and the level of chip to be read The key element of characteristic is identical.

In the present embodiment, the mark of chip to be read can be the unique identification information of chip to be read, can be sequence The information such as row number, production numbering, production time.

As a kind of optional embodiment of the present embodiment, reading device obtains close corresponding with the mark of chip to be read , it is necessary to obtain and chip to be read before the result that the level nature of method chip is compared with the level nature of chip to be read Mark corresponding to legal chip level nature, therefore, as shown in Fig. 2 further comprising the steps of (the step S201 of methods described To S205)：

Step S201, level nature acquisition device send N number of preset instructions successively to legal chip；

In this optional embodiment, level nature acquisition device can be exactly reading device, i.e., by reading device itself Obtain the level nature of legal chip corresponding with the mark of chip to be read；It can also be set as an external member of reading device Standby and reading device is integrated device, for example, POS, the outer sleeve of card reader, the containment vessel of mobile phone etc., in reading device During identifying whether chip to be read is legal chip, level nature acquisition device can be received as the data of reading device Module is sent out, reading device is sent to chip to be read by level nature acquisition device and instructs and receive what chip to be read returned Response message；The external monitoring devices independently of reading device are can also be, for realizing to the level nature of legal chip Monitoring.

In step S201, the device to be read for being built-in with legal chip is special with the way of contact or cordless access level Property acquisition device, the legal chip built in level nature acquisition device to device to be read send N number of preset instructions successively.It is optional , level nature acquisition device is often sent completely a preset instructions, waits for receiving legal chip and this preset instructions is entered The response message of row response, only after the response message that legal chip is responded to this preset instructions is received, level Characteristic acquisition device could start the operation that next preset instructions are sent to legal chip；Or level nature acquisition device After being sent completely successively to N number of preset instructions legal chip to be received can be waited to respond this N number of preset instructions respectively Response message；Or level nature acquisition device can while to legal chip send successively it is N number of treat preset instructions, one Side receives the response message that legal chip is responded to the preset instructions received.

In step S201, level nature acquisition device is to N number of preset instructions that legal chip is sent and reading device to treating It is identical to read N number of preset instructions that chip is sent.

Step S202, legal chip receive N number of preset instructions successively, and each preset instructions are responded respectively；

In step S202, legal chip can just be carried out with one preset instructions of every reception to the preset instructions of this reception Response, the response message responded to the preset instructions of this reception is returned to level nature acquisition device, and waited to be received Next preset instructions that level nature acquisition device is sent；Or legal chip can receive successively to N number of preset instructions After the completion of, restart the operation responded respectively to this N number of preset instructions；Or legal chip can connect successively on one side N number of preset instructions that level nature acquisition device is sent are received, while the preset instructions received are responded, and it is special to level Property acquisition device return to the response message responded to the preset instructions that have received.

Step S203, level nature acquisition device obtain the second elements combination, wherein, the second elements combination includes：It is legal The level nature for the response message that chip is responded to each preset instructions respectively, the level nature difference of each response message Including at least one of following key element：Level value, the duration of level rising edge, pulse width, dutycycle, state value and difference At the time of sub-signal crosspoint；

In step S203, state value can be the state value of communication interface, and the communication interface includes but is not limited to USB and connect Mouth, NFC interface, COBBAIF and blue tooth interface, this present embodiment is not specifically limited.

Step S204, level nature acquisition device obtain the level nature of legal chip, wherein, the level of legal chip is special Property second processing carried out to the second elements combination for level nature acquisition device obtained, wherein, second processing and the first processing It is identical；

In step S204, second processing can use but be not limited to one of following processing mode：

Mode 1：Level nature acquisition device rings to the legal chip in the second elements combination to each preset instructions The each level nature for the response message answered carries out calibration process respectively, and using the level nature after calibration as legal chip Level nature；Such as：Can be with controllable scene in calibration range, level nature acquisition device is to the conjunction in the second elements combination The each level nature for the response message that method chip is responded to each preset instructions carries out correction calibration respectively.

Mode 2：Level nature acquisition device rings to the legal chip in the second elements combination to each preset instructions The each level nature for the response message answered is stored, and the level nature using the level nature of storage as legal chip.

Mode 3：Level nature acquisition device rings to the legal chip in the second elements combination to each preset instructions The each level nature for the response message answered carries out classification processing, such as：Preset instructions are Card Reader instruction, signature command and encryption Instruction, the level nature for the response message that level nature acquisition device is responded legal chip to signature command and legal core The level nature for the response message that piece is responded to encrypted instruction is classified as one kind, and legal chip is responded to Card Reader instruction Response message level nature for one kind.

Certainly, second processing can also be any two or three of combination in above-mentioned three kinds of processing modes, this implementation Example is not specifically limited.

Step S205, server or reading device obtain and store the mark of legal chip and the level spy of legal chip Property.

In step S205, server is arranged on backstage, can be obtained by cable network or wireless network with level nature Device is communicated, wherein, cable network can be the networks such as private line network, internet, wireless network can be 3G, 4G, The networks such as WIFI.When level nature acquisition device is the external monitoring devices independently of reading device, reading device can lead to Cable network or wireless network is crossed to be communicated with level nature acquisition device, wherein, cable network can be private line network, mutually Network, the wireless networks such as networking can be the networks such as 3G, 4G, WIFI.

Above-mentioned steps S201 to S205 can perform when legal chip dispatches from the factory test, and therefore, level nature obtains The level nature of legal chip is stored in advance in server or reading device by device, when needing to the legal of chip to be read When property is identified, the level nature of legal chip is directly obtained from server or reading device.

In this optional embodiment, level nature acquisition device can obtain the level nature of multiple legal chips；Clothes Business device or reading device can obtain the level natures of multiple legal chips at a level nature acquisition device, can also be from Obtain the level nature of multiple legal chips at multiple level nature acquisition device, and by the mark and level of each legal chip Characteristic is stored.

In this optional embodiment, in order to prevent mark and its level nature because of legal chip not to be stored in advance in clothes Cause the level nature of legal chip corresponding with the mark of chip to be read and chip to be read in business device or reading device Level nature can not compare, therefore, server or reading device can be obtained by wired or wireless way to level nature Device sends renewal request, level nature acquisition device response renewal request, to the legal of server or reading device memory storage The mark and its level nature of chip are updated, and can improve the level of legal chip corresponding with the mark of chip to be read The accuracy that characteristic is compared with the level nature of chip to be read.

In this optional embodiment, if the key element number that includes of the level nature of N=1, response message for m (m >=1, And m is positive integer), then comparing the level nature of legal chip corresponding with the mark of chip to be read and chip to be read During whether level nature is consistent, response message that chip to be read and legal chip are responded to the preset instructions Each level nature be compared respectively, m comparison result is obtained, if comparison result is consistent in this m comparison result Quantity more than the first predetermined threshold value, then illustrate the level nature of legal chip corresponding with the mark of chip to be read with continuing The level nature of coring piece compares unanimously, otherwise compares inconsistent.Such as：Preset instructions for instruction 1, chip to be read with it is legal The key element for the level nature of response message that chip is responded to instruction 1 is level value, pulse width and dutycycle, then than Whether the level nature of pair legal chip corresponding with the mark of chip to be read and the level nature of chip to be read are consistent During, the level value for the response message that chip to be read is responded to instruction 1 responds with legal chip to instruction 1 The level value of response message be compared, obtain comparison result a1；The response that chip to be read is responded to instruction 1 is believed The pulse width for the response message that the pulse width of breath is responded with legal chip to instruction 1 is compared, and obtains comparing knot Fruit a2；And the dutycycle for the response message for being responded chip to be read to instruction 1 responds with legal chip to instruction 1 The dutycycle of response message be compared, obtain comparison result a3；Wherein, if level nature is identical or in certain error model In enclosing, then comparison result is consistent；When above-mentioned 3 comparison results be consistent or comparison result more than half for it is consistent when, Illustrate that the level nature of legal chip corresponding with the mark of chip to be read compares unanimously with the level nature of chip to be read； Preferably, when above-mentioned 3 comparison results are consistent, the electricity of legal chip corresponding with the mark of chip to be read is just illustrated Flat characteristic and the level nature of chip to be read compare unanimously.

In this optional embodiment, if N >=2, legal chip corresponding with the mark of chip to be read is being compared Level nature and chip to be read level nature it is whether consistent during, by chip to be read with legal chip to same Each level nature of response message for being responded of preset instructions be compared, obtain N number of comparison result, wherein, will treat What each level nature for the response message that reading chip is responded with legal chip to same preset instructions was compared Process is referred to comparison process during above-mentioned N=1；If comparison result is that consistent quantity exceedes in this N number of comparison result Second predetermined threshold value, then illustrate electricity of the level nature with chip to be read of legal chip corresponding with the mark of chip to be read Flat characteristic compares unanimously, otherwise compares inconsistent.Such as：Preset instructions are instruction 1, instruct 2 and instruction 3, then are comparing with treating During whether the level nature of legal chip corresponding to the mark of reading chip is consistent with the level nature of chip to be read, The sound that the level nature for the response message that chip to be read is responded to instruction 1 is responded with legal chip to instruction 1 Answer the level nature of information to be compared, obtain comparison result b1；The response message that chip to be read is responded to instruction 2 The level nature of response messages that is responded to instruction 2 of level nature and legal chip be compared, obtain comparison result b2；The level nature for the response message that chip to be read is responded to instruction 3 is responded with legal chip to instruction 3 The level nature of response message is compared, and obtains comparison result b3；Wherein, if level nature is identical or in certain error model In enclosing, then comparison result is consistent；When above-mentioned 3 comparison results be consistent or comparison result more than half for it is consistent when, Illustrate that the level nature of legal chip corresponding with the mark of chip to be read compares unanimously with the level nature of chip to be read； Preferably, when above-mentioned 3 comparison results are consistent, the electricity of legal chip corresponding with the mark of chip to be read is just illustrated Flat characteristic and the level nature of chip to be read compare unanimously.

As a kind of optional embodiment of the present embodiment, reading device obtains close corresponding with the mark of chip to be read The result that the level nature of method chip is compared with the level nature of chip to be read, in the case of it is determined that comparing unanimously, It is legal chip to identify chip to be read, can use but be not limited to one of following three kinds of modes：

Mode one：Reading device sends the level nature of the mark of chip to be read and chip to be read to service Device；Server receives the mark of chip to be read and the level nature of chip to be read, and obtain prestore with it is to be read The level nature of legal chip corresponding to the mark of chip, by the level nature of legal chip and the level nature of chip to be read It is compared, consistent result will be compared and sent to reading device；Reading device identifies that chip to be read is legal chip；

Optionally, if what the level nature of legal chip was compared server with the level nature of chip to be read As a result to be inconsistent, then server can store the mark of the chip to be read to risk storehouse, so as to follow-up reading device , can be directly from the risk storehouse of server when being read again to the device to be read for being built-in with the chip to be read Mark by inquiring about the chip to be read can recognize that whether the chip to be read is legal chip, without going acquisition to continue again The level nature of coring piece, and by the level nature of legal chip corresponding with the mark of the chip to be read and the coring that continues The level nature of piece is compared, and to identify whether the chip to be read is legal chip, can quickly identify chip to be read It is whether legal.

Mode two：The level that reading device obtains the legal chip corresponding with the mark of chip to be read prestored is special Property, the level nature of legal chip is compared with the level nature of chip to be read, in the case of it is determined that comparing unanimously, It is legal chip to identify chip to be read；

Optionally, if the level nature of legal chip is compared reading device with the level nature of chip to be read Result to be inconsistent, then reading device can store the mark of the chip to be read to risk storehouse, so as to follow-up reading , can be by being inquired about in risk storehouse when device is read to the device to be read for being built-in with the chip to be read again Whether it is legal chip that the mark of chip to be read carrys out the Direct Recognition chip to be read, without going to obtain chip to be read again Level nature, and by the level of the level nature of legal chip corresponding with the mark of the chip to be read and the chip to be read Characteristic is compared, and to identify whether the chip to be read is legal chip, can quickly identify whether chip to be read is legal.

Mode three：Reading device sends the mark of chip to be read to server；Server receives chip to be read Mark, and the level nature of the legal chip corresponding with the mark of chip to be read prestored is obtained, will be with the coring that continues The level nature of legal chip is sent to reading device corresponding to the mark of piece；Reading device by the level nature of legal chip with The level nature of chip to be read is compared, and in the case of it is determined that comparing unanimously, it is legal core to identify chip to be read Piece.

Optionally, if the level nature of legal chip is compared reading device with the level nature of chip to be read Result to be inconsistent, then reading device can notify server to store the mark of the chip to be read to risk storehouse, so as to , can be directly from clothes when follow-up reading device is read to the device to be read for being built-in with the chip to be read again It is engaged in the risk storehouse of device by inquiring about whether the i.e. recognizable chip to be read of the mark of the chip to be read is legal chip, nothing The level nature of chip to be read need to be gone to obtain again, and the level of legal chip corresponding with the mark of the chip to be read is special Property is compared with the level nature of the chip to be read, can be quick to identify whether the chip to be read is legal chip Identify whether chip to be read is legal.

In this optional embodiment, the electricity of the legal chip corresponding with the mark of chip to be read prestored is obtained Flat characteristic includes：Chip identification to be read is compared with the mark of legal chip；In the case of it is determined that comparing unanimously, Obtain the level nature of legal chip.

Optionally, if there are the device to be read of built-in legal chip contact and both non-contact accesses to read simultaneously The mode of device, the then same preset instructions sent for reading device, legal chip are pre- to being received by the way of contact If the level nature for the response message that instruction and the preset instructions received by cordless are responded is different, because This, want to accurately identify chip to be read whether be legal chip, it is necessary to make the device to be read of built-in legal chip respectively with Contact and cordless access level nature acquisition device, then above-mentioned steps S201 to S204 is performed respectively, make level nature Acquisition device obtains legal chip in the way of contact and the level nature of cordless respectively.Therefore, it is determined that prestoring Legal chip corresponding with the mark of chip to be read level nature compare it is consistent after, it is necessary to according to built-in chip to be read Device to be read and the connected mode of reading device obtain the level spy of corresponding with the mark of chip to be read legal chip Property, that is to say, that if the connected mode of reading device and the device to be read of built-in chip to be read is cordless, Reading device obtains level nature of the legal chip corresponding with the mark of chip to be read in cordless, if reading dress It is the way of contact to put with the connected mode of the device to be read of built-in chip to be read, then reading device obtains and chip to be read Mark corresponding to legal chip the way of contact level nature.

In the present embodiment, if the level nature of legal chip corresponding with the mark of chip to be read and the coring that continues The result that the level nature of piece is compared is inconsistent, then it is not legal chip to illustrate chip to be read, if reading device It is worked on risk being present between the chip to be read, therefore, reading device can generate prompt message and pass through language The modes such as sound report, text importing, light flash export the prompt message, for reminding the holder of reading device to continue Coring piece is not legal chip, and the device to be read has risk, or, it is corresponding to the device to be read of the built-in legal chip User send warning message, such as：Reading device passes through corresponding to server to the device to be read of the built-in legal chip The mobile phone of user sends alarming short message, mail etc..

The recognition methods for the legal chip for coming to provide the present embodiment by taking smart card and identity card as an example separately below is carried out Illustrate：

1st, the first example：Using smart card to be read be device to be read, POS as reading device, intelligence to be read sticks into Exemplified by row off line cCredit card payment：

First, the arm's length dealing flow between smart card to be read and POS is as follows：

Step S301, smart card to be read is with the way of contact or cordless access POS；

Step S302, the intelligent card chip to be read built in POS to smart card to be read send intelligent card chip mark Obtain instruction；

Step S303, intelligent card chip response intelligent card chip mark to be read obtain instruction, will include intelligence to be read The response message of the mark of the core of the card piece is sent to POS；

Step S304, POS receive the response message of the mark comprising intelligent card chip to be read；

Step S305, POS send the Transaction Information process instruction for including Transaction Information to intelligent card chip to be read；

Step S306, intelligent card chip response transaction message processing directives to be read, handles Transaction Information, obtains Merchandise data to be verified, and the response message comprising data to be verified of merchandising is sent to POS；

Step S307, POS receive the response message for including data to be verified of merchandising；

Step S308, POS is verified to data to be verified of merchandising, and after being verified, performs transaction；

Secondly, in order to identify whether the intelligent card chip to be read is legal intelligent card chip, as shown in figure 3, original Arm's length dealing flow in increase following steps：

Step S309, POS obtain first element set；

Step S310, POS obtain the level nature of intelligent card chip to be read, wherein, intelligent card chip to be read Level nature is that POS obtains to the processing of first element set progress first；

Step S311, POS obtain the level of legal intelligent card chip corresponding with the mark of intelligent card chip to be read The result that characteristic is compared with the level nature of intelligent card chip to be read, in the case of it is determined that comparing unanimously, identify Intelligent card chip to be read is legal intelligent card chip.

As long as above-mentioned steps S309 to step S311 is performed successively after step S304, can be in step S304 extremely Performed successively while step S308 either step, can also be after step S304 to step S308 either step successively Perform, have no effect on execution of the step S304 to step S308；Due to the arm's length dealing stream between smart card to be read and POS Cheng Zhong, POS include intelligent card chip mark to the pending instruction that smart card to be read is sent and obtain instruction and Transaction Information Process instruction, i.e. M=2, therefore, intelligent card chip can be identified and obtain instruction and/or Transaction Information process instruction as pre- If instruction, and the selection of preset instructions can influence first element set and above-mentioned steps S309 to step S311 execution are suitable Sequence, illustrated one by one below：

A1, preset instructions are that intelligent card chip mark obtains instruction, i.e. N=1：

First element set includes intelligent card chip to be read and the sound for obtaining instruction and being responded is identified to intelligent card chip Answer the level nature of information；Above-mentioned steps S309 to step S311 is performed successively after step S304；

A2, preset instructions are Transaction Information process instruction, i.e. N=1：

First element set includes the response message that intelligent card chip to be read is responded to Transaction Information process instruction Level nature；Above-mentioned steps S309 to step S311 is performed successively after step S307；

A3, preset instructions are that intelligent card chip mark obtains instruction and Transaction Information process instruction, i.e. N=2：

First element set includes intelligent card chip to be read and the sound for obtaining instruction and being responded is identified to intelligent card chip Answer the level nature of information and the level of response message that intelligent card chip to be read is responded to Transaction Information process instruction Characteristic；Above-mentioned steps S309 to step S311 is performed successively after step S304.

In addition, want to obtain the level nature of legal intelligent card chip corresponding with the mark of intelligent card chip to be read with It is that the level nature of intelligent card chip to be read is compared as a result, it is desirable to advance acquisition and the mark of intelligent card chip to be read The level nature of corresponding legal intelligent card chip, and legal intelligent card chip corresponding with the mark of intelligent card chip to be read The acquisition flow of level nature should use and be preset with the acquisition flow identical of the level nature of intelligent card chip to be read Instruction, the acquisition flow of the level nature of pair legal intelligent card chip corresponding with the mark of intelligent card chip to be read is entered below Row explanation：

If B1, preset instructions, which are intelligent card chip mark, obtains instruction, i.e. N=1, then obtain and intelligent card chip to be read Mark corresponding to legal intelligent card chip level nature flow it is following (as shown in Figure 4)：

Step S401a, legal smart card is with the way of contact or cordless access level nature acquisition device；

Step S402a, the legal intelligent card chip built in level nature acquisition device to legal smart card send smart card Chip identification obtains instruction；

Step S403a, legal intelligent card chip response intelligent card chip mark obtain instruction, will include legal intelligent the core of the card The response message of the mark of piece is sent to level nature acquisition device；

Step S404a, level nature acquisition device receive the response message of the mark comprising legal intelligent card chip；

Step S405a, level nature acquisition device obtain the second elements combination, wherein, the second elements combination includes continuing Intelligent card chip is taken to identify the level nature for obtaining the response message that instruction is responded to intelligent card chip；

Step S406a, level nature acquisition device obtain the level nature of legal intelligent card chip, wherein, legal intelligence The level nature of the core of the card piece is that level nature acquisition device carries out what second processing obtained to the second elements combination.

If B2, preset instructions are Transaction Information process instruction, i.e. N=1, then the mark with intelligent card chip to be read is obtained The flow of the level nature of corresponding legal intelligent card chip is following (as shown in Figure 5)：

Step S401b, legal smart card is with the way of contact or cordless access level nature acquisition device；

Step S402b, level nature acquisition device send the Transaction Information for including Transaction Information to legal intelligent card chip Process instruction；

Step S403b, legal intelligent card chip response transaction message processing directives, handles Transaction Information, obtains Merchandise data to be verified, and the response message comprising data to be verified of merchandising is sent to level nature acquisition device；

Step S404b, level nature acquisition device receive the response message for including data to be verified of merchandising；

Step S405b, level nature acquisition device obtain the second elements combination, wherein, the second elements combination includes continuing Take the level nature for the response message that intelligent card chip responded to Transaction Information process instruction；

Step S406b, level nature acquisition device obtain the level nature of legal intelligent card chip, wherein, legal intelligence The level nature of the core of the card piece is that level nature acquisition device carries out what second processing obtained to the second elements combination.

Wherein, the mark of legal intelligent card chip, which the mode such as can manually input and be input to level nature, obtains dress Put.

If B3, preset instructions be intelligent card chip mark obtain instruction and Transaction Information process instruction, N=2, then obtain with The flow of the level nature of legal intelligent card chip corresponding to the mark of intelligent card chip to be read is following (as shown in Figure 6)：

Step S401c, legal smart card is with the way of contact or cordless access level nature acquisition device；

Step S402c, the legal intelligent card chip built in level nature acquisition device to legal smart card send smart card Chip identification obtains instruction；

Step S403c, legal intelligent card chip response intelligent card chip mark obtain instruction, will include legal intelligent the core of the card The response message of the mark of piece is sent to level nature acquisition device；

Step S404c, level nature acquisition device receive the response message of the mark comprising legal intelligent card chip；

Step S405c, level nature acquisition device send the Transaction Information for including Transaction Information to legal intelligent card chip Process instruction；

Step S406c, legal intelligent card chip response transaction message processing directives, handles Transaction Information, obtains Merchandise data to be verified, and the response message comprising data to be verified of merchandising is sent to level nature acquisition device；

Step S407c, level nature acquisition device receive the response message for including data to be verified of merchandising；

Step S408c, level nature acquisition device obtain the second elements combination, wherein, the second elements combination includes continuing Intelligent card chip is taken to identify the level nature for obtaining the response message that instruction is responded and intelligence to be read to intelligent card chip The level nature for the response message that the core of the card piece is responded to Transaction Information process instruction；

Step S409c, level nature acquisition device obtain the level nature of legal intelligent card chip, wherein, legal intelligence The level nature of the core of the card piece is that level nature acquisition device carries out what second processing obtained to the second elements combination.

Wherein, above-mentioned steps S405c to step S407c can be performed successively before step S402c, can also be in step Performed successively after S404c.When above-mentioned steps S405c is performed successively to step S407c before step S402c, above-mentioned step Rapid S408c and step S409c is performed successively after step S404c；When above-mentioned steps S405c to step S407c is in step When being performed successively after S404c, above-mentioned steps S408c and step S409c are performed successively after step S407c.

It should be noted that second processing must be identical with the first processing；Also, with the mark of intelligent card chip to be read The key element of the level nature of corresponding legal intelligent card chip must phase with the key element of the level nature of intelligent card chip to be read Together.In addition, when preset instructions are one, level nature acquisition device only can send the default finger to legal intelligent card chip Order, such as situation described in above-mentioned B1 and B2；When preset instructions are multiple, level nature acquisition device can be only to legal intelligence The core of the card piece sends the preset instructions, and level nature acquisition device can be sent successively by the transmission order in arm's length dealing flow This multiple preset instructions, this multiple preset instructions, example can not also be sent successively by the transmission order in arm's length dealing flow The situation as described in above-mentioned B3.Certainly, level nature acquisition device can also obtain intelligent the core of the card to be read according to reading device The flow of the level nature of piece obtains to the level nature of legal intelligent card chip, and here is omitted.

2nd, the second example：It is device to be read, identity card reader as reading device using identity card to be read, utilizes body Part card reader is treated exemplified by reading identity card progress ID card information read operation：

First, the normal reading flow between identity card and identity card reader to be read is as follows：

Step S501, identity card reader send the instruction of identity card card seeking；

Step S502, the identity card chip response identity to be read card card seeking instruction built in identity card to be read, and return The response message of mark comprising identity card chip to be read；

Step S503, identity card reader receive the response message of the mark comprising identity card chip to be read；

Step S504, identity card reader send the instruction of identity card Card Reader to identity card chip to be read；

Step S505, identity card chip response identity card Card Reader instruction to be read, the response comprising ID card information is believed Breath is sent to identity card reader；

Step S506, identity card reader receive the response message for including ID card information；

Step S507, identity card reader output ID card information；

Secondly, in order to identify whether the identity card chip to be read is legal identity card chip, as shown in fig. 7, original ID card information read flow in increase following steps：

Step S508, identity card reader obtain first element set；

Step S509, identity card reader obtain the level nature of identity card chip to be read, wherein, identity card to be read The level nature of chip is that identity card reader obtains to the processing of first element set progress first；

Step S510, identity card reader obtain legal identity card chip corresponding with the mark of identity card chip to be read The result that is compared with the level nature of identity card chip to be read of level nature, it is determined that compare it is consistent in the case of, Identify that identity card chip to be read demonstrate,proves chip for legal identity.

As long as above-mentioned steps S508 to step S510 is performed successively after step S503, can be in step S503 extremely Performed successively while step S507 either step, can also be after step S503 to step S507 either step successively Perform, have no effect on execution of the step S503 to step S507, due between identity card to be read and identity card reader just Often read in flow, identity card reader includes the instruction of identity card card seeking and body to the pending instruction that identity card to be read is sent Part card Card Reader instruction, be i.e. M=2, therefore, identity card card seeking can be instructed and/or identity card Card Reader is instructed as preset instructions, And the selection of preset instructions can influence first element set and above-mentioned steps S508 to step S510 execution sequence, enter below Row illustrates one by one：

C1, preset instructions instruct for identity card card seeking, N=1：

First element set includes the response message that identity card chip to be read is responded to the instruction of identity card card seeking Level nature；Above-mentioned steps S508 to step S510 is performed successively after step S503；

C2, preset instructions instruct for identity card Card Reader, N=1：

First element set includes the response message that identity card chip to be read is responded to the instruction of identity card Card Reader Level nature；Above-mentioned steps S508 to step S510 is performed successively after step S506；

C3, preset instructions are that identity card card seeking instructs and identity card Card Reader instructs, N=2：

First element set includes the response message that identity card chip to be read is responded to the instruction of identity card card seeking The level nature for the response message that level nature and identity card chip to be read are responded to the instruction of identity card Card Reader；Above-mentioned step Rapid S508 to step S510 is performed successively after step S503.

In addition, the acquisition flow of the level nature of legal identity card chip corresponding with the mark of identity card chip to be read It is referred to above-mentioned first example to perform, here is omitted.

It can be illustrated by above-mentioned two example, the recognition methods of legal chip of the invention need not change existing reading Device only need to do small change to being built-in with the normal reading flow of the device to be read of chip to be read to the program of reading device It is dynamic, you can to identify whether chip to be read is legal chip.

By the recognition methods of legal chip of the present invention, entered according to the instruction that each chip is sent to reading device The characteristic that the level nature of row response has differences, after the mark of chip to be read is obtained, by the mark with chip to be read The level nature of corresponding legal chip is compared with the level nature of chip to be read, if comparison result is consistent, says Bright chip to be read is legal chip, therefore, even if the mark of legal chip is illegally stolen and is stored in other chips to obtain To the device to be read of forgery, can also according to the level nature between chip to be read legal chip corresponding with mark whether It is consistent that the legitimacy of chip to be read is identified, it can effectively judge to be built-in with the dress to be read of the chip to be read Whether legal, improve the accuracy rate that reading device identifies device legitimacy to be read if putting.

Embodiment 2

A kind of identifying system of legal chip is present embodiments provided, the identifying system of the legal chip of the present embodiment uses The recognition methods for the legal chip that above-described embodiment 1 provides is realized；Fig. 8 is the identifying system for the legal chip that the present embodiment provides Structural representation, as shown in figure 8, the system mainly includes：Reading device 601, for being sent successively to chip 602 to be read M pending instructions, M pending instructions include N number of preset instructions, wherein, M >=N, M, N are positive integer；Chip to be read 602, for receiving M pending instructions successively, each pending instruction is responded respectively；Reading device 601, is additionally operable to First element set is obtained, wherein, first element set includes：Chip 602 to be read rings to each preset instructions respectively The level nature for the response message answered, the level nature of each response message include at least one of following key element respectively：Level At the time of value, the duration of level rising edge, pulse width, dutycycle, state value and differential signal crosspoint；Reading device 601, it is additionally operable to obtain the level nature of chip 602 to be read, wherein, the level nature of chip 602 to be read is reading device 601 pairs of first element set carry out what the first processing obtained；Reading device 601, it is additionally operable to obtain the mark with chip 602 to be read The result that the level nature of legal chip 604 corresponding to knowledge is compared with the level nature of chip 602 to be read, it is determined that ratio In the case of consistent, it is legal chip 604 to identify chip 602 to be read, wherein, it is corresponding with the mark of chip to be read The key element of the level nature of legal chip is identical with the key element of the level nature of chip to be read.

In the present embodiment, reading device 601 can be POS, ATM, mobile phone, the mass transit card brush with NFC function Card device, stored value card card reader, the combination of mobile phone and card reader, combination of PC and card reader etc., chip 602 to be read, which is arranged on, to be treated In reading device, device to be read can be second-generation resident identification card, mass transit card, the smart card with chip, with chip and The smart card of magnetic stripe, stored value card etc..Device to be read is accessed into reading device 601 with the way of contact or cordless, its In, the way of contact can be in the default slot of device to be read insertion reading device 601, and cordless can be included but not It is limited to the modes such as NFC, bluetooth.

In the present embodiment, when device to be read with contact or cordless access reading device 601 when, reading device Chip to be read 602 built in 601 to device to be read sends M pending instructions successively, and chip 602 to be read receives successively M pending instructions, each pending instruction is responded respectively.Optionally, reading device 601 is often sent completely one and treated Process instruction, wait for receiving the response message that chip 602 to be read responds this pending instruction, only receiving To chip 602 to be read to this it is pending instruct the response message that is responded after, reading device 601 could start to continuing Coring piece 602 sends the operation of next pending instruction；Chip 602 to be read often receives a pending instruction, just to this The pending instruction of secondary reception is responded, and returns to response message to reading device 601, and wait reading device 601 to be received to send out The next pending instruction sent.Or reading device 601 can wait after being sent completely successively to M pending instructions Receive the response message that chip 602 to be read instruction pending to this M is responded respectively；Chip 602 to be read can be After instruction pending to M finishes receiving successively, restart the operation for instructing and being responded respectively pending to this M, and will It is pending to this M to instruct the response message responded respectively to send to reading device 601.Or reading device 601 can Pending instruction is sent with one side successively to chip 602 to be read, while it is pending to what is received to receive chip 602 to be read Instruct the response message responded.

In the present embodiment, state value can be the state value of communication interface, and the communication interface includes but is not limited to USB and connect Mouth, NFC interface, COBBAIF and blue tooth interface, this present embodiment is not specifically limited.

In the present embodiment, reading device 601 can be carried out receiving chip 602 to be read to n-th preset instructions After the response message of response, can also receive chip 602 to be read it is pending to m-th instruct responded response letter After breath, first element set is obtained.Also, the key element that the level nature of each response message is included can be identical, also may be used With difference.

In the present embodiment, the first processing can use but be not limited to one of following processing mode：

Mode 1：Reading device 601 rings to the chip to be read 602 in first element set to each preset instructions The each level nature for the response message answered carries out calibration process respectively, and using the level nature after calibration as the coring that continues The level nature of piece；Such as：Can be with controllable scene in calibration range, reading device 601 is to continuing in first element set The each level nature for the response message that coring piece 602 is responded to each preset instructions carries out correction calibration respectively.

Mode 2：Reading device 601 rings to the chip to be read 602 in first element set to each preset instructions The each level nature for the response message answered is stored, and the level nature of storage is special as the level of chip to be read Property.

Mode 3：Reading device 601 rings to the chip to be read 602 in first element set to each preset instructions The each level nature for the response message answered carries out classification processing, such as：Preset instructions are Card Reader instruction, signature command and encryption Instruction, the level nature for the response message that chip 602 to be read is responded to signature command add with 602 pairs of chip to be read The close level nature for instructing the response message responded is classified as one kind, and chip 602 to be read is responded to Card Reader instruction The level nature of response message be classified as one kind.

As a kind of optional embodiment of the present embodiment, as shown in figure 9, the system also includes：Level nature obtains dress Put 603, for obtained in reading device 601 corresponding with the mark of chip 602 to be read legal chip 604 level nature and Before the result that the level nature of chip 602 to be read is compared, N number of preset instructions are sent successively to legal chip 604；Close Method chip 604, it is additionally operable to receive N number of preset instructions successively, each preset instructions is responded respectively；Level nature obtains dress 603 are put, is additionally operable to obtain the second elements combination, wherein, the second elements combination includes：Legal chip 604 is respectively to each default The level nature of the response message responded is instructed, the level nature of each response message includes following key element at least respectively One of：Level value, the duration of level rising edge, pulse width, dutycycle, state value and differential signal crosspoint when Carve；Level nature acquisition device 603, it is additionally operable to obtain the level nature of legal chip 604, wherein, the level of legal chip 604 Characteristic is that level nature acquisition device 603 carries out what second processing obtained to the second elements combination, wherein, second processing and first Handle identical；Server 605, for obtaining and storing the mark of legal chip 604 and the level nature of legal chip 604；Or Person's reading device 601, it is additionally operable to obtain and stores the mark and the level nature of legal chip 604 of legal chip 604.

In this optional embodiment, level nature acquisition device 603 can be exactly reading device 601, i.e., filled by reading Put 601 level natures for itself obtaining legal chip 604 corresponding with the mark of chip 602 to be read；It can also be used as and read One external member equipment of device 601 and reading device 601 are integrated device, for example, POS, the outer sleeve of card reader, hand Containment vessel of machine etc., during reading device 601 identifies whether chip 602 to be read is legal chip 604, level nature Acquisition device 603 can pass through level nature acquisition device as the data transmit-receive module of reading device 601, reading device 601 603 send the response message for instructing and receiving chip 602 to be read and return to chip 602 to be read；It can also be independently of reading The external monitoring devices of device 601 are taken, for realizing the monitoring of the level nature to legal chip 604.

In this optional embodiment, state value can be the state value of communication interface, and the communication interface includes but unlimited In USB interface, NFC interface, COBBAIF and blue tooth interface, this present embodiment is not specifically limited.

In this optional embodiment, the device to be read of legal chip 604 is built-in with the way of contact or non-contact side Formula access level nature acquisition device 603, legal chip 604 built in from level nature acquisition device 603 to device to be read according to Secondary to send N number of preset instructions, legal chip 604 receives this N number of preset instructions successively, and each preset instructions are rung respectively Should.Optionally, level nature acquisition device 603 is often sent completely a preset instructions, waits for receiving legal chip 604 to this The response message that secondary preset instructions are responded, only receiving what legal chip 604 was responded to this preset instructions After response message, level nature acquisition device 603 could start the operation that next preset instructions are sent to legal chip 604. Legal chip 604 often receives a preset instructions, and just the preset instructions of this reception are responded, returned to reading device 601 Response message is returned, and the next preset instructions for waiting level nature acquisition device 603 to be received to send.Or level nature obtains Device 603 is taken to wait legal chip 604 to be received to this N number of preset instructions after being sent completely successively to N number of preset instructions The response message responded respectively；Legal chip 604 can be restarted pair after being finished receiving successively to N number of preset instructions The operation that this N number of preset instructions is responded respectively, and the response message responded respectively to this N number of preset instructions is sent To level nature acquisition device 603.Or level nature acquisition device 603 can be while send successively to legal chip 604 Preset instructions, while receiving the response message that legal chip 604 is responded to the preset instructions received.

In this optional embodiment, N number of preset instructions that level nature acquisition device 603 is sent to legal chip 604 The N number of preset instructions sent with reading device 601 to chip 602 to be read are identicals.

In this optional embodiment, second processing can use but be not limited to one of following processing mode：

Mode 1：Level nature acquisition device 603 is to the legal chip 604 in the second elements combination to each preset instructions Each level nature of the response message responded carries out calibration process respectively, and using the level nature after calibration as conjunction The level nature of method chip；Such as：Can be with controllable scene in calibration range, level nature acquisition device 603 is to the second key element The each level nature for the response message that legal chip 604 in set is responded to each preset instructions is rectified a deviation respectively Calibration.

Mode 2：Level nature acquisition device 603 is to the legal chip 604 in the second elements combination to each preset instructions Each level nature of the response message responded is stored, and the level using the level nature of storage as legal chip Characteristic.

Mode 3：Level nature acquisition device 603 is to the legal chip 604 in the second elements combination to each preset instructions Each level nature of the response message responded carries out classification processing, such as：Preset instructions are Card Reader instruction, signature command And encrypted instruction, the level for the response message that level nature acquisition device 603 is responded legal chip 604 to signature command The level nature for the response message that characteristic is responded with legal chip 604 to encrypted instruction is classified as one kind, by legal chip 604 The level nature of the response message responded to Card Reader instruction is one kind.

In this optional embodiment, server 605 is arranged on backstage, can pass through cable network or wireless network and electricity Flat characteristic acquisition device 603 is communicated, wherein, cable network can be the networks such as private line network, internet, and wireless network can To be the networks such as 3G, 4G, WIFI.When level nature acquisition device 603 is the external monitoring devices independently of reading device 601 When, reading device 601 can be communicated by cable network or wireless network with level nature acquisition device 603, wherein, have Gauze network can be the networks such as private line network, internet, and wireless network can be the networks such as 3G, 4G, WIFI.

Level nature acquisition device 603 can perform the electricity for obtaining legal chip 604 when legal chip 604 dispatches from the factory test The level nature of legal chip 604 is stored in advance in server by the flow of flat characteristic, therefore, level nature acquisition device 603 605 or reading device 601 in, when needing that the legitimacy of chip 602 to be read is identified, directly from server 605 or The level nature of legal chip 604 is obtained in reading device 601.

In this optional embodiment, level nature acquisition device 603 can obtain the level nature of multiple legal chips； The level that server 605 or reading device 601 can obtain multiple legal chips at a level nature acquisition device 603 is special Property, the level nature of multiple legal chips can also be obtained at multiple level nature acquisition device 603, and incite somebody to action each legal core The mark and level nature of piece are stored.

In this optional embodiment, in order to prevent mark and its level nature because of legal chip 604 from not prestoring Cause the level of legal chip 604 corresponding with the mark of chip 602 to be read in server 605 or reading device 601 Characteristic and the level nature of chip 602 to be read can not compare, and therefore, server 605 or reading device 601 can be by wired Or wireless mode sends renewal request to level nature acquisition device 603, the response of level nature acquisition device 603 updates request, The mark and its level nature of server 605 or the legal chip of the memory storage of reading device 601 are updated, can improve with The level nature of legal chip 604 corresponding to the mark of chip 602 to be read and the level nature of chip 602 to be read are compared To accuracy.

In this optional embodiment, if the key element number that includes of the level nature of N=1, response message for m (m >=1, And m is positive integer), then compare the level nature of corresponding with the mark of chip 602 to be read legal chip 604 with it is to be read During whether the level nature of chip 602 is consistent, chip 602 to be read and legal chip 604 are entered to the preset instructions Each level nature of the response message of row response is compared respectively, m comparison result is obtained, if this m comparison result Middle comparison result be consistent quantity more than the first predetermined threshold value, then it is corresponding legal with the mark of chip 602 to be read to illustrate The level nature of chip 604 and the level nature of chip 602 to be read compare unanimously, otherwise compare inconsistent.Such as：It is default to refer to Make the key element of the level nature of the response message responded for instruction 1, chip 602 to be read with legal chip 604 to instruction 1 For level value, pulse width and dutycycle, then the electricity of legal chip 604 corresponding with the mark of chip 602 to be read is being compared During whether flat characteristic is consistent with the level nature of chip 602 to be read, by chip 602 to be read to instructing 1 sound The level value for the response message that the level value for the response message answered is responded with legal chip 604 to instruction 1 is compared, and obtains To comparison result a1；The pulse width for the response message that chip 602 to be read is responded to instruction 1 and legal chip 604 The pulse width of the response message responded to instruction 1 is compared, and obtains comparison result a2；And by chip 602 to be read The duty for the response message that the dutycycle of the response message responded to instruction 1 is responded with legal chip 604 to instruction 1 Than being compared, comparison result a3 is obtained；Wherein, if level nature is identical or within a certain error range, comparison result To be consistent；When above-mentioned 3 comparison results be consistent or comparison result more than half for it is consistent when, illustrate and chip to be read The level nature of legal chip 604 corresponding to 602 mark and the level nature of chip 602 to be read compare unanimously；Preferably, When above-mentioned 3 comparison results are consistent, just illustrate the electricity of legal chip 604 corresponding with the mark of chip 602 to be read Flat characteristic and the level nature of chip 602 to be read compare unanimously.

In this optional embodiment, if N >=2, legal core corresponding with the mark of chip 602 to be read is being compared During whether the level nature of piece 604 is consistent with the level nature of chip 602 to be read, by chip 602 to be read with closing The each level nature for the response message that method chip 604 is responded to same preset instructions is compared, and obtains N number of comparison As a result, wherein, the response message that chip 602 to be read is responded with legal chip 604 to same preset instructions it is each The process that individual level nature is compared is referred to comparison process during above-mentioned N=1；If compared in this N number of comparison result As a result it is consistent quantity more than the second predetermined threshold value, then illustrates legal chip 604 corresponding with the mark of chip 602 to be read The level nature of level nature and chip 602 to be read compare unanimously, otherwise compare inconsistent.Such as：Preset instructions are finger 1, instruction 2 and instruction 3 are made, then is comparing the level nature of legal chip 604 corresponding with the mark of chip 602 to be read with treating During whether the level nature of reading chip 602 is consistent, the response that chip 602 to be read is responded to instruction 1 is believed The level nature for the response message that the level nature of breath is responded with legal chip 604 to instruction 1 is compared, and is compared As a result b1；The level nature for the response message that chip 602 to be read is responded to instruction 2 is with legal chip 604 to instruction 2 The level nature of the response message responded is compared, and obtains comparison result b2；Chip 602 to be read is entered to instruction 3 The level nature for the response message that the level nature of the response message of row response is responded with legal chip 604 to instruction 3 is entered Row compares, and obtains comparison result b3；Wherein, if level nature is identical or within a certain error range, comparison result one Cause；When above-mentioned 3 comparison results be consistent or comparison result more than half for it is consistent when, illustrate and chip 602 to be read Mark corresponding to the level nature of legal chip 604 and the level nature of chip 602 to be read compare unanimously；Preferably, when When above-mentioned 3 comparison results are consistent, just illustrate the level of legal chip 604 corresponding with the mark of chip 602 to be read Characteristic and the level nature of chip 602 to be read compare unanimously.

As a kind of optional embodiment of the present embodiment, reading device 601 is obtained with continuing one of in the following manner What the level nature of legal chip 604 corresponding to the mark of coring piece 602 was compared with the level nature of chip 602 to be read As a result, in the case of it is determined that comparing unanimously, it is legal chip 604 to identify chip 602 to be read：

Mode one：As shown in figure 9, reading device 601, is additionally operable to the mark of chip 602 to be read and the coring that continues The level nature of piece 602 is sent to server 605；Server 605, it is additionally operable to receive the mark of chip 602 to be read and continues The level nature of coring piece 602, and obtain the legal chip 604 corresponding with the mark of chip 602 to be read prestored Level nature, the level nature of legal chip 604 is compared with the level nature of chip 602 to be read, it is consistent by comparing Result send to reading device 601；Reading device 601, it is additionally operable to identify that chip 602 to be read is legal chip 604；

Optionally, if server 605 is to the level nature of legal chip 604 and the level nature of chip 602 to be read The result being compared is inconsistent, then server 605 can store the mark of the chip 602 to be read to risk storehouse, with , can be with when continuous reading device 601 is read to the device to be read for being built-in with the chip 602 to be read again after an action of the bowels Directly from the risk storehouse of server 605 chip 602 to be read is can recognize that by inquiring about the mark of the chip 602 to be read Whether be legal chip 604, without going to obtain the level nature of chip 602 to be read again, and by with the chip 602 to be read The level nature of legal chip 604 is compared with the level nature of the chip 602 to be read corresponding to mark, to identify that this is treated Read whether chip 602 is legal chip 604, can quickly identify whether chip 602 to be read is legal.

Mode two：Reading device 601, it is additionally operable to obtain the conjunction corresponding with the mark of chip 602 to be read prestored The level nature of method chip 604, the level nature of legal chip 604 is compared with the level nature of chip 602 to be read, In the case of it is determined that comparing unanimously, it is legal chip 604 to identify chip 602 to be read；

Optionally, if reading device 601 is special to the level nature of legal chip 604 and the level of chip 602 to be read Property the result that is compared be inconsistent, then reading device 601 can store the mark of the chip 602 to be read to risk Storehouse, so that follow-up reading device 601 is read to the device to be read for being built-in with the chip 602 to be read again When, can come Direct Recognition, whether the chip 602 to be read be conjunction by inquiring about the mark of chip 602 to be read in risk storehouse Method chip 604, without going to obtain the level nature of chip 602 to be read again, and will be corresponding with the mark of the chip 602 to be read The level nature of legal chip 604 be compared with the level nature of the chip 602 to be read, to identify the chip to be read Whether 602 be legal chip 604, can quickly identify whether chip 602 to be read is legal.

Mode three：As shown in figure 9, reading device 601, is additionally operable to send the mark of chip 602 to be read to server 605；Server 605, is additionally operable to receive the mark of chip 602 to be read, and obtain prestore with chip 602 to be read The level nature of legal chip 604 corresponding to mark, by the electricity of legal chip 604 corresponding with the mark of chip 602 to be read Flat characteristic is sent to reading device 601；Reading device 601, it is additionally operable to the level nature of legal chip 604 and chip to be read 602 level nature is compared, and in the case of it is determined that comparing unanimously, it is legal chip to identify chip 602 to be read 604。

Optionally, if reading device 601 is special to the level nature of legal chip 604 and the level of chip 602 to be read Property the result that is compared be inconsistent, then reading device 601 can notify server 605 by the mark of the chip 602 to be read Knowledge is stored to risk storehouse, so that follow-up reading device 601 enters to the device to be read for being built-in with the chip 602 to be read again During row read operation, it can directly can be known by inquiring about the mark of the chip 602 to be read from the risk storehouse of server 605 Whether the chip 602 to be read is not legal chip 604, without going to obtain the level nature of chip 602 to be read again, and will be with The level nature of legal chip 604 corresponding to the mark of the chip 602 to be read and the level nature of the chip 602 to be read are entered Row compares, and to identify whether the chip 602 to be read is legal chip 604, can quickly identify whether chip 602 to be read closes Method.

In this optional embodiment, reading device 601 or server 605 obtain what is prestored in the following manner The level nature of legal chip 604 corresponding with the mark of chip 602 to be read：To the mark of chip 602 to be read with it is legal The mark of chip 604 is compared；In the case of it is determined that comparing unanimously, the level nature of legal chip 604 is obtained.

Optionally, if the device to be read of built-in legal chip 604 has contact and both non-contact accesses simultaneously The mode of reading device 601, then the same preset instructions sent for reading device 601, legal chip 604 is in the way of contact Level nature with cordless is different, therefore, wants to accurately identify whether chip 602 to be read is legal chip 604, it is necessary to make the device to be read of built-in legal chip 604 obtain dress respectively with contact and cordless access level nature 603 are put, level nature acquisition device 603 is obtained legal chip 604 respectively special in the level of the way of contact and cordless Property.Therefore, it is determined that the level nature of the legal chip 604 corresponding with the mark of chip 602 to be read prestored compares , it is necessary to be obtained according to the connected mode of the device to be read of built-in chip 602 to be read and reading device 601 with continuing after consistent The level nature of legal chip 604 corresponding to the mark of coring piece 602, that is to say, that if reading device 601 continues with built-in The connected mode of the device to be read of coring piece 602 is cordless, then reading device 601 obtains and chip 602 to be read Mark corresponding to legal chip 604 cordless level nature, if reading device 601 and built-in chip to be read The connected mode of 602 device to be read is the way of contact, then reading device 601 obtains the mark pair with chip 602 to be read Level nature of the legal chip 604 answered in the way of contact.

In the present embodiment, the mark of chip 602 to be read can be the unique identification information of chip 602 to be read, can To be sequence number, produce the information such as numbering, production time.

In the present embodiment, if the level nature of legal chip 604 corresponding with the mark of chip 602 to be read is with treating The result that the level nature of reading chip 602 is compared is inconsistent, then it is not legal chip to illustrate chip 602 to be read 604, if being worked on risk being present between reading device 601 and the chip 602 to be read, therefore, reading device 601 Prompt message can be generated and the prompt message is exported by modes such as voice broadcast, text importing, light flash, for carrying The awake holder of reading device 601 chip 602 to be read is not legal chip 604, and the device to be read has risk, or Person, warning message is sent to user corresponding to the device to be read of the built-in legal chip 604, such as：Reading device 601 passes through The mobile phone of user corresponding to from server 605 to the device to be read of the built-in legal chip 604 sends alarming short message, mail etc..

By the identifying system of legal chip of the present invention, the finger sent according to each chip to reading device 601 The characteristic for making the level nature responded have differences, will after the mark that reading device 601 obtains chip 602 to be read The level nature of legal chip 604 corresponding with the mark of chip 602 to be read is carried out with the level nature of chip 602 to be read Compare, if comparison result is consistent, it is legal chip 604 to illustrate chip 602 to be read, therefore, even if legal chip 604 The device to be read illegally stolen and be stored in other chips to be forged is identified, can also be according to chip 602 to be read Whether level nature between legal chip 604 corresponding with mark is unanimously known to the legitimacy of chip 602 to be read Not, it can effectively judge whether the device to be read for being built-in with the chip 602 to be read is legal, improve reading device 601 and know The accuracy rate of device legitimacy not to be read.

Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.

It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..

Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer In read/write memory medium.

Storage medium mentioned above can be read-only storage, disk or CD etc..

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any One or more embodiments or example in combine in an appropriate manner.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.The scope of the present invention By appended claims and its equivalent limit.

Claims

A kind of 1. recognition methods of legal chip, it is characterised in that including：

Reading device sends M pending instructions successively to chip to be read, and the M pending instructions include N number of default finger Order, wherein, M >=N, M, N are positive integer；

The chip to be read receives the M pending instructions successively, and each pending instruction is responded respectively；

The reading device obtains first element set, wherein, the first element set includes：The chip difference to be read The level nature for the response message that each preset instructions are responded, the level nature difference of each response message Including at least one of following key element：Level value, the duration of level rising edge, pulse width, dutycycle, state value and difference At the time of sub-signal crosspoint；

The reading device obtains the level nature of the chip to be read, wherein, the level nature of the chip to be read is The reading device carries out what the first processing obtained to the first element set；

The level nature that the reading device obtains legal chip corresponding with the mark of the chip to be read continues with described The result that the level nature of coring piece is compared, in the case of it is determined that comparing unanimously, identify that the chip to be read is Legal chip, wherein, the key element of the level nature of the legal chip corresponding with the mark of the chip to be read with it is described The key element of the level nature of chip to be read is identical.
2. according to the method for claim 1, it is characterised in that the reading device obtains the mark with the chip to be read Before the result that the level nature of legal chip corresponding to knowledge is compared with the level nature of the chip to be read, the side Method also includes：

Level nature acquisition device sends N number of preset instructions successively to legal chip；

The legal chip receives N number of preset instructions successively, and each preset instructions are responded respectively；

The level nature acquisition device obtains the second elements combination, wherein, second elements combination includes：The legal core The level nature for the response message that piece is responded to each preset instructions respectively, the level of each response message are special Property include at least one of following key element respectively：Level value, the duration of level rising edge, pulse width, dutycycle, state At the time of value and differential signal crosspoint；

The level nature acquisition device obtains the level nature of the legal chip, wherein, the level of the legal chip is special Property the level nature acquisition device to second elements combination carry out second processing obtain, wherein, at described second Reason is identical with first processing；

Server or the reading device obtain and store the mark of the legal chip and the level spy of the legal chip Property.
3. method according to claim 1 or 2, it is characterised in that the reading device obtains and the chip to be read Mark corresponding to legal chip the result that is compared with the level nature of the chip to be read of level nature, it is determined that In the case of comparing unanimously, identify that the chip to be read includes for legal chip：

The reading device sends the level nature of the mark of the chip to be read and the chip to be read to service Device；

The server receives the mark of the chip to be read and the level nature of the chip to be read, and obtains and deposit in advance The level nature of the legal chip corresponding with the mark of the chip to be read of storage, the level of the legal chip is special Property is compared with the level nature of the chip to be read, will compare consistent result and sends to the reading device；

The reading device identifies that the chip to be read is legal chip；

Or

The reading device obtains the level of the legal chip corresponding with the mark of the chip to be read prestored Characteristic, the level nature of the legal chip is compared with the level nature of the chip to be read, it is determined that comparing one In the case of cause, it is legal chip to identify the chip to be read；

Or

The reading device sends the mark of the chip to be read to server；

The server receives the mark of the chip to be read, and obtains the mark with the chip to be read prestored The level nature of the corresponding legal chip, by the level of the legal chip corresponding with the mark of the chip to be read Characteristic is sent to the reading device；

The level nature of the legal chip is compared the reading device with the level nature of the chip to be read, It is determined that in the case of comparing unanimously, it is legal chip to identify the chip to be read.
4. according to the method for claim 3, it is characterised in that it is described obtain prestore with the chip to be read The level nature of the legal chip includes corresponding to mark：

The mark of the chip to be read is compared with the mark of the legal chip；

In the case of it is determined that comparing unanimously, the level nature of the legal chip is obtained.
5. according to the method described in any one of Claims 1-4, it is characterised in that first processing includes：Sort out, storage And/or calibration.
A kind of 6. identifying system of legal chip, it is characterised in that including：

Reading device, for sending M pending instructions successively to chip to be read, the M pending instructions are comprising N number of pre- If instruction, wherein, M >=N, M, N are positive integer；

The chip to be read, for receiving the M pending instructions successively, each pending instruction is carried out respectively Response；

The reading device, it is additionally operable to obtain first element set, wherein, the first element set includes：It is described to be read The level nature for the response message that chip is responded to each preset instructions respectively, the level of each response message Characteristic includes at least one of following key element respectively：Level value, the duration of level rising edge, pulse width, dutycycle, shape At the time of state value and differential signal crosspoint；

The reading device, it is additionally operable to obtain the level nature of the chip to be read, wherein, the level of the chip to be read The characteristic reading device carries out the first processing to the first element set and obtained；

The reading device, it is additionally operable to obtain level nature and the institute of legal chip corresponding with the mark of the chip to be read The result that the level nature of chip to be read is compared is stated, in the case of it is determined that comparing unanimously, is identified described to be read Chip is legal chip, wherein, the key element of the level nature of the legal chip corresponding with the mark of the chip to be read It is identical with the key element of the level nature of the chip to be read.
7. system according to claim 6, it is characterised in that the system also includes：

Level nature acquisition device, for obtaining legal core corresponding with the mark of the chip to be read in the reading device Before the result that the level nature of piece is compared with the level nature of the chip to be read, institute is sent successively to legal chip State N number of preset instructions；

The legal chip, it is additionally operable to receive N number of preset instructions successively, each preset instructions is rung respectively Should；

The level nature acquisition device, it is additionally operable to obtain the second elements combination, wherein, second elements combination includes：Institute State the level nature for the response message that legal chip is responded to each preset instructions respectively, each response message Level nature include at least one of following key element respectively：Level value, the duration of level rising edge, pulse width, account for At the time of sky ratio, state value and differential signal crosspoint；

The level nature acquisition device, it is additionally operable to obtain the level nature of the legal chip, wherein, the legal chip The level nature level nature acquisition device carries out second processing to second elements combination and obtained, wherein, it is described Second processing is identical with first processing；

Server, for obtaining and storing the mark of the legal chip and the level nature of the legal chip；Or

The reading device, it is additionally operable to obtain and stores the mark and the level nature of the legal chip of the legal chip.
8. the system according to claim 6 or 7, it is characterised in that the reading device obtains one of in the following manner The level nature of legal chip corresponding with the mark of the chip to be read is carried out with the level nature of the chip to be read The result of comparison, in the case of it is determined that comparing unanimously, it is legal chip to identify the chip to be read：

The reading device, it is additionally operable to the mark of the chip to be read and the transmission of the level nature of the chip to be read To server；

The server, it is additionally operable to receive the mark of the chip to be read and the level nature of the chip to be read, and obtains The level nature of the legal chip corresponding with the mark of the chip to be read prestored is taken, by the legal chip Level nature be compared with the level nature of the chip to be read, will compare consistent result send to it is described read dress Put；

The reading device, it is additionally operable to identify that the chip to be read is legal chip；

Or

The reading device, it is additionally operable to obtain the legal chip corresponding with the mark of the chip to be read prestored Level nature, the level nature of the legal chip is compared with the level nature of the chip to be read, it is determined that In the case of comparing unanimously, it is legal chip to identify the chip to be read；

Or

The reading device, it is additionally operable to send the mark of the chip to be read to server；

The server, is additionally operable to receive the mark of the chip to be read, and obtains prestoring with the coring that continues The level nature of the legal chip corresponding to the mark of piece, by the legal core corresponding with the mark of the chip to be read The level nature of piece is sent to the reading device；

The reading device, it is additionally operable to carry out the level nature of the legal chip and the level nature of the chip to be read Compare, in the case of it is determined that comparing unanimously, it is legal chip to identify the chip to be read.
9. system according to claim 8, it is characterised in that the server or the reading device pass through with lower section Formula obtains the level nature of the legal chip corresponding with the mark of the chip to be read prestored：

The mark of the chip to be read is compared with the mark of the legal chip；

In the case of it is determined that comparing unanimously, the level nature of the legal chip is obtained.
10. according to the system described in any one of claim 6 to 9, it is characterised in that first processing includes：Sort out, storage And/or calibration.