CN103345610B - The Apparatus and method for of fast verification intelligent card data integrality - Google Patents
The Apparatus and method for of fast verification intelligent card data integrality Download PDFInfo
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- CN103345610B CN103345610B CN201310245079.XA CN201310245079A CN103345610B CN 103345610 B CN103345610 B CN 103345610B CN 201310245079 A CN201310245079 A CN 201310245079A CN 103345610 B CN103345610 B CN 103345610B
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Abstract
The invention discloses a kind of Apparatus and method for of fast verification intelligent card data integrality, relate to field of intelligent cards, the method is: computer sends APDU instruction by instruction transceiver module, smart card is passed to by I/O module, instruction is sent completely, current sample module starts sampling according to the parameter pre-set, and compare via current comparing module, curent change in monitoring intelligent card power pins, when monitoring watt current change, just know that smart card is just at memory write, if do not reach default outage condition, then continue to sample, if reach default outage condition, then notify that power module carries out power-off to the power pins of smart card, then re-power, read the data in card, check whether complete.The present invention can detect the opportunity of smart card memory write exactly, give the power pins power-off of smart card in time, thus whether data integrity protection's function of fast verification smart card is correct.
Description
Technical field
The present invention relates to field of intelligent cards, particularly relate to a kind of Apparatus and method for of fast verification intelligent card data integrality.
Background technology
Smart card purposes is more and more extensive, main application divides 4 large classes: identification, the means of payment, encrypting and decrypting, information transmission, exchanges data and storage is all related in these purposes, therefore in smart card, the integrality of data seems especially important, must carry out data integrity test before program release.For smart card, with the external world mutual be APDU(ApplicationProtocol Data Unit, Application Protocol Data Unit) instruction stream, according to the complexity of application, relate to how many meetings upgrading the APDU instruction stream storing data different, for guaranteeing data integrity, all relevant APDU instructions just must be covered.Whether the object of intelligent card data integrity protection test, exactly in order to verify that smart card encounters abnormal power-down when upgrading memory data, can ensure that the value inside storer there will not be neither new value is not again the situation of old value.Testing tool is generally the card reader of design specialized, and such as, when smart card performs memory write instruction, card reader stops powering to smart card power pins, then re-powers, and whether the content of storer is read out inspection normal.
The design difficulty of card reader is that card reader does not know that smart card performs which in APDU instruction process at renewal memory content time period, cannot power-off within this time period exactly, conventional method is that circulation sends out APDU instruction to smart card, power-off test is done to each time period that APDU instruction performs, this time period is a step value determined, if step value is too large, likely just skip the processing time of more new memory; If step value is too little, then the at substantial time is needed to complete the test of an APDU instruction, to guarantee to capture the processing procedure of more new memory.When performing APDU instruction on smart cards, usually only less than being 10% of whole instruction time at more new memory, it is nonsensical that the time of residue 90% does power-off, therefore the greatest drawback of said method is that the test duration is very long, and most power-off is all nonsensical, and testing efficiency is lower.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology; a kind of Apparatus and method for of fast verification intelligent card data integrality is provided; the opportunity of smart card memory write can be detected exactly; give the power pins power-off of smart card in time, thus whether data integrity protection's function of fast verification smart card is correct.
The equipment of fast verification intelligent card data integrality provided by the invention, comprise instruction transceiver module, parameter setting module, input and output I/O module, current sample module, current comparing module and power module, parameter setting module respectively and instruction transceiver module, current sample module, current comparing module is connected, I/O module respectively and instruction transceiver module, current sample module is connected, power module is connected with current sample module, current comparing module respectively, wherein:
Instruction transceiver module, for: receive the instruction that computer is sent, special field is defined to distinguish the APDU instruction or parameter setting instruction of issuing smart card in instruction, response data is returned to computer, and parameter setting instruction is forwarded to parameter setting module, be forwarded to I/O module by sending to the APDU instruction of smart card;
Parameter setting module, for: preserve the parameter setting instruction that also processing instruction transceiver module is sent; During smart card memory write, power consumption becomes large, electric current in power pins also becomes large, curent change during smart card memory write is called that watt current changes, parameter setting module is for the storage characteristics of different kind of smart cards, current sample cycle and watt current variation range are set according to parameter setting instruction, the current sample cycle is sent to current sample module, watt current variation range is sent to current comparing module;
I/O module, for: use the communication protocol of intelligent card of ISO7816-3 to send APDU instruction to smart card, receive the data that smart card returns; I/O module, after sending APDU instruction, sends sampling control signal to current sample module, and notice current sample module starts sampling;
Current sample module, for: when receiving the sampling control signal that I/O module sends, in the current sample cycle of sending according to parameter setting module, periodically gather the electric current in the power pins of smart card, and the current value of output front and back double sampling is to current comparing module;
Current comparing module, for: two current values comparing the input of current sample module, according to the watt current variation range sent according to parameter setting module, judge whether the change of two current values meets the curent change feature of smart card memory write: the current value of increase is whether in watt current variation range, namely default outage condition whether is reached, if do not reach default outage condition, then notify that current sample module continues to sample; If reach default outage condition, when namely the change of two current values meets the curent change feature of smart card memory write, current comparing module sends power down control signal to power module;
Power module, for: power to the power pins of smart card; When receiving the power down control signal that current comparing module sends, to the power pins power-off of smart card.
On the basis of technique scheme, described equipment is also provided for connecting the I/O pin of outside intelligent card, reset RST pin, clock CLK pin, power supply VCC pin and ground GND pin according to ISO7816-3 specification.
On the basis of technique scheme, described I/O module is connected with the smart card of outside by I/O pin.
On the basis of technique scheme, described power module is connected with the power pins of smart card by VCC pin.
On the basis of technique scheme, described instruction transceiver module is connected with the computer of outside by wired mode.
On the basis of technique scheme, described instruction transceiver module is connected with the computer of outside by general-purpose serial bus USB, serial ports or parallel port mode.
On the basis of technique scheme, described equipment also comprises radio receiving transmitting module, and instruction transceiver module is connected with the computer of outside by radio receiving transmitting module.
On the basis of technique scheme, described instruction transceiver module adopts bluetooth, 2.4G or infrared mode to be connected with the computer of outside by radio receiving transmitting module.
The present invention also provides a kind of method of the fast verification intelligent card data integrality based on the said equipment, comprises the following steps:
A, instruction transceiver module receive the instruction that computer is sent, special field is defined to distinguish the APDU instruction or parameter setting instruction of issuing smart card in instruction, instruction transceiver module returns response data to computer, and parameter setting instruction is forwarded to parameter setting module, be forwarded to I/O module by sending to the APDU instruction of smart card; Parameter setting module preserves the parameter setting instruction that also processing instruction transceiver module is sent; During smart card memory write, power consumption becomes large, electric current in power pins also becomes large, curent change during smart card memory write is called that watt current changes, parameter setting module is for the storage characteristics of different kind of smart cards, current sample cycle and watt current variation range are set according to parameter setting instruction, the current sample cycle is sent to current sample module, watt current variation range is sent to current comparing module;
B, I/O module uses the communication protocol of intelligent card of ISO7816-3 to send APDU instruction to smart card, receives the data that smart card returns; I/O module, after sending APDU instruction, sends sampling control signal to current sample module, and notice current sample module starts sampling; When current sample module receives the sampling control signal that I/O module sends, in the current sample cycle of sending according to parameter setting module, periodically gather the electric current in the power pins of smart card, and before and after exporting the current value of double sampling to current comparing module;
C, current comparing module compares two current values of current sample module input, according to the watt current variation range that parameter setting module is sent, judge whether the change of two current values meets the curent change feature of smart card memory write: the current value of increase is whether in watt current variation range, namely default outage condition whether is reached, if do not reach default outage condition, then notify that current sample module continues to sample, if reach default outage condition, namely when the change of two current values meets the curent change feature of smart card memory write, then notify that power module carries out power-off to the power pins of smart card, then re-power, read the data in card, check whether complete.
On the basis of technique scheme, described I/O module is at t
1moment sends APDU instruction, and smart card starts processing instruction, t
2moment smart card starts memory write, t
2to t
3the rising time of electric current, t
3to t
4the smart card memory write time, t
4to t
5the electric current negative edge time after terminating memory write, i
1the electric current before smart card starts memory write in power pins, i
2the electric current of smart card just when memory write, t
3-t
2=Δ t
1, t
4-t
3=Δ t
2, i
1-i
2=Δ i, Δ i are watt current changes, according to the physical characteristics of smart card, and Δ t
1much smaller than Δ t
2.
Compared with prior art, advantage of the present invention is as follows:
The feature that the present invention becomes large according to power consumption during smart card memory write, ER effect is large in power pins; when equipment sends out APDU instruction to smart card; the opportunity of smart card memory write can be detected exactly; give the power pins power-off of smart card in time, thus whether data integrity protection's function of fast verification smart card is correct.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the equipment of fast verification intelligent card data integrality in the embodiment of the present invention.
Fig. 2 be in the embodiment of the present invention smart card power on after-current change sequential chart.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of equipment of fast verification intelligent card data integrality, comprise instruction transceiver module, parameter setting module, I/O(Input/Output, input and output) module, current sample module, current comparing module and power module, parameter setting module respectively and instruction transceiver module, current sample module, current comparing module is connected, I/O module respectively and instruction transceiver module, current sample module is connected, and power module is connected with current sample module, current comparing module respectively; This equipment is also provided for connecting the I/O pin of outside intelligent card according to ISO7816-3 specification, RST(resets) pin, CLK(clock) pin, VCC(power supply) pin and GND(ground) pin, I/O module is connected with the smart card of outside by I/O pin, and power module is connected with the power pins of smart card by VCC pin; Instruction transceiver module by USB(Universal Serial BUS, USB (universal serial bus)), serial ports, the wired mode such as parallel port be connected with the computer of outside; This equipment can also comprise radio receiving transmitting module, instruction transceiver module by radio receiving transmitting module, adopt bluetooth, 2.4G, the wireless radiofrequency connected mode such as infrared is connected with the computer of outside, wherein:
Instruction transceiver module, for: receive the instruction that computer is sent, special field is defined to distinguish the APDU instruction or parameter setting instruction of issuing smart card in instruction, response data is returned to computer, and parameter setting instruction is forwarded to parameter setting module, be forwarded to I/O module by sending to the APDU instruction of smart card;
Parameter setting module, for: preserve the parameter setting instruction that also processing instruction transceiver module is sent; During smart card memory write, power consumption can become large, electric current in power pins also can become large, hereinafter, curent change during smart card memory write is called that watt current changes, and parameter setting module, for the storage characteristics of different kind of smart cards, arranges current sample cycle and watt current variation range according to parameter setting instruction, the current sample cycle is sent to current sample module, watt current variation range is sent to current comparing module;
I/O module, for: use the communication protocol of intelligent card of ISO7816-3 to send APDU instruction to smart card, receive the data that smart card returns; Between the transmission period of APDU instruction, smart card can not memory write, so I/O module is after sending APDU instruction, sends sampling control signal to current sample module, and notice current sample module starts to sample;
Current sample module, for: when receiving the sampling control signal that I/O module sends, in the current sample cycle of sending according to parameter setting module, periodically gather the electric current in the power pins of smart card, and the current value of output front and back double sampling is to current comparing module;
Current comparing module, for: two current values comparing the input of current sample module, according to the watt current variation range sent according to parameter setting module, judge whether the change of two current values meets the curent change feature of smart card memory write: the current value of increase is whether in watt current variation range, namely default outage condition whether is reached, if do not reach default outage condition, then notify that current sample module continues to sample; If reach default outage condition, when namely the change of two current values meets the curent change feature of smart card memory write, current comparing module sends power down control signal to power module;
Power module, for: power to the power pins of smart card; When receiving the power down control signal that current comparing module sends, to the power pins power-off of smart card.
Based on the said equipment, the embodiment of the present invention also provides a kind of method of fast verification intelligent card data integrality, comprises the following steps:
A, instruction transceiver module receive the instruction that computer is sent, special field is defined to distinguish the APDU instruction or parameter setting instruction of issuing smart card in instruction, instruction transceiver module returns response data to computer, and parameter setting instruction is forwarded to parameter setting module, be forwarded to I/O module by sending to the APDU instruction of smart card; Parameter setting module preserves the parameter setting instruction that also processing instruction transceiver module is sent; During smart card memory write, power consumption can become large, electric current in power pins also can become large, curent change during smart card memory write is called that watt current changes, parameter setting module is for the storage characteristics of different kind of smart cards, current sample cycle and watt current variation range are set according to parameter setting instruction, the current sample cycle is sent to current sample module, watt current variation range is sent to current comparing module;
B, I/O module uses the communication protocol of intelligent card of ISO7816-3 to send APDU instruction to smart card, receives the data that smart card returns; Between the transmission period of APDU instruction, smart card can not memory write, so I/O module is after sending APDU instruction, sends sampling control signal to current sample module, and notice current sample module starts to sample; When current sample module receives the sampling control signal that I/O module sends, in the current sample cycle of sending according to parameter setting module, periodically gather the electric current in the power pins of smart card, and before and after exporting the current value of double sampling to current comparing module;
C, current comparing module compares two current values of current sample module input, according to the watt current variation range that parameter setting module is sent, judge whether the change of two current values meets the curent change feature of smart card memory write: the current value of increase is whether in watt current variation range, namely default outage condition whether is reached, if do not reach default outage condition, then notify that current sample module continues to sample, if reach default outage condition, namely when the change of two current values meets the curent change feature of smart card memory write, then notify that power module carries out power-off to the power pins of smart card, then re-power, read the data in card, check whether complete.
The principle of work of the embodiment of the present invention is as follows:
In the embodiment of the present invention, computer sends APDU instruction by instruction transceiver module, smart card is passed to by I/O module, instruction is sent completely, current sample module starts sampling according to the parameter pre-set, and compare via current comparing module, curent change in monitoring intelligent card power pins, when monitoring watt current change, just know that smart card is just at memory write, if do not reach default outage condition, then continue to sample, if reach default outage condition, then notify that power module carries out power-off to the power pins of smart card, then re-power, read the data in card, check whether complete, thus fast verification intelligent card data data when abnormal power-down whether can keep integrality.
Shown in Figure 2, I/O module is at t
1moment sends APDU instruction, and smart card starts processing instruction, t
2moment smart card starts memory write, t
2to t
3the rising time of electric current, t
3to t
4the smart card memory write time, t
4to t
5the electric current negative edge time after terminating memory write, i
1the electric current before smart card starts memory write in power pins, i
2be the electric current of smart card just when memory write, suppose t
3-t
2=Δ t
1, t
4-t
3=Δ t
2, i
1-i
2=Δ i, Δ i i.e. watt current change, according to the physical characteristics of smart card, Δ t
1much smaller than Δ t
2.
I/O module is at t
1moment sends sampling control signal after sending APDU instruction, notice current sample module starts periodic sampling, then current sample module starts periodic sampling, sampling period comes from parameter setting module, the sampled result of n-th time and n-1 time (n is the integer of >1) is ceaselessly exported to current comparing module by current sample module, two current values of input are done subtraction by current comparing module, obtain the curent change during double sampling of front and back, judge whether curent change is watt current change, the value of watt current change comes from parameter setting module equally, if be judged as that watt current changes, just send power down control signal to power module, control it to the power pins power-off of smart card.
Different smart cards, Δ t
1, Δ t
2can be different with Δ i, during use, user, according to the feature of smart card to be tested, arranges sampling period and the watt current variation range of current sample module by parameter setting module.
The embodiment of the present invention describes equipment and the method for verification of data integrity for typical smart card, but the checking of the module of other packing forms or safe unit can be converted to the verification mode of smart card, be therefore applicable to the checking of the intelligent cpu chip of other forms.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these amendments and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then these revise and modification also within protection scope of the present invention.
The prior art that the content do not described in detail in instructions is known to the skilled person.
Claims (10)
1. the equipment of a fast verification intelligent card data integrality, it is characterized in that: comprise instruction transceiver module, parameter setting module, input and output I/O module, current sample module, current comparing module and power module, parameter setting module respectively and instruction transceiver module, current sample module, current comparing module is connected, I/O module respectively and instruction transceiver module, current sample module is connected, power module is connected with current sample module, current comparing module respectively, wherein:
Instruction transceiver module, for: receive the instruction that computer is sent, special field is defined to distinguish the APDU instruction or parameter setting instruction of issuing smart card in instruction, response data is returned to computer, and parameter setting instruction is forwarded to parameter setting module, be forwarded to I/O module by sending to the APDU instruction of smart card;
Parameter setting module, for: preserve the parameter setting instruction that also processing instruction transceiver module is sent; During smart card memory write, power consumption becomes large, electric current in power pins also becomes large, curent change during smart card memory write is called that watt current changes, parameter setting module is for the storage characteristics of different kind of smart cards, current sample cycle and watt current variation range are set according to parameter setting instruction, the current sample cycle is sent to current sample module, watt current variation range is sent to current comparing module;
I/O module, for: use the communication protocol of intelligent card of ISO7816-3 to send APDU instruction to smart card, receive the data that smart card returns; I/O module, after sending APDU instruction, sends sampling control signal to current sample module, and notice current sample module starts sampling;
Current sample module, for: when receiving the sampling control signal that I/O module sends, in the current sample cycle of sending according to parameter setting module, periodically gather the electric current in the power pins of smart card, and the current value of output front and back double sampling is to current comparing module;
Current comparing module, for: two current values comparing the input of current sample module, according to the watt current variation range sent according to parameter setting module, judge whether the change of two current values meets the curent change feature of smart card memory write: two current values of input are done subtraction, obtain the curent change during double sampling of front and back, judge curent change whether in watt current variation range, namely default outage condition whether is reached, if do not reach default outage condition, then notify that current sample module continues to sample; If reach default outage condition, when namely the change of two current values meets the curent change feature of smart card memory write, current comparing module sends power down control signal to power module;
Power module, for: power to the power pins of smart card; When receiving the power down control signal that current comparing module sends, to the power pins power-off of smart card.
2. the equipment of fast verification intelligent card data integrality as claimed in claim 1, is characterized in that: described equipment is also provided for connecting the I/O pin of outside intelligent card, reset RST pin, clock CLK pin, power supply VCC pin and ground GND pin according to ISO7816-3 specification.
3. the equipment of fast verification intelligent card data integrality as claimed in claim 2, is characterized in that: described I/O module is connected with the smart card of outside by I/O pin.
4. the equipment of fast verification intelligent card data integrality as claimed in claim 2, is characterized in that: described power module is connected with the power pins of smart card by VCC pin.
5. the equipment of the fast verification intelligent card data integrality according to any one of Claims 1-4, is characterized in that: described instruction transceiver module is connected with the computer of outside by wired mode.
6. the equipment of fast verification intelligent card data integrality as claimed in claim 5, is characterized in that: described instruction transceiver module is connected with the computer of outside by general-purpose serial bus USB, serial ports or parallel port mode.
7. the equipment of the fast verification intelligent card data integrality according to any one of Claims 1-4, it is characterized in that: described equipment also comprises radio receiving transmitting module, instruction transceiver module is connected with the computer of outside by radio receiving transmitting module.
8. the equipment of fast verification intelligent card data integrality as claimed in claim 7, is characterized in that: described instruction transceiver module adopts bluetooth, 2.4G or infrared mode to be connected with the computer of outside by radio receiving transmitting module.
9., based on the method for the fast verification intelligent card data integrality of equipment according to any one of claim 1 to 8, it is characterized in that, comprise the following steps:
A, instruction transceiver module receive the instruction that computer is sent, special field is defined to distinguish the APDU instruction or parameter setting instruction of issuing smart card in instruction, instruction transceiver module returns response data to computer, and parameter setting instruction is forwarded to parameter setting module, be forwarded to I/O module by sending to the APDU instruction of smart card; Parameter setting module preserves the parameter setting instruction that also processing instruction transceiver module is sent; During smart card memory write, power consumption becomes large, electric current in power pins also becomes large, curent change during smart card memory write is called that watt current changes, parameter setting module is for the storage characteristics of different kind of smart cards, current sample cycle and watt current variation range are set according to parameter setting instruction, the current sample cycle is sent to current sample module, watt current variation range is sent to current comparing module;
B, I/O module uses the communication protocol of intelligent card of ISO7816-3 to send APDU instruction to smart card, receives the data that smart card returns; I/O module, after sending APDU instruction, sends sampling control signal to current sample module, and notice current sample module starts sampling; When current sample module receives the sampling control signal that I/O module sends, in the current sample cycle of sending according to parameter setting module, periodically gather the electric current in the power pins of smart card, and before and after exporting the current value of double sampling to current comparing module;
C, current comparing module compares two current values of current sample module input, according to the watt current variation range that parameter setting module is sent, judge whether the change of two current values meets the curent change feature of smart card memory write: two current values of input are done subtraction, obtain the curent change during double sampling of front and back, judge curent change whether in watt current variation range, namely default outage condition whether is reached, if do not reach default outage condition, then notify that current sample module continues to sample, if reach default outage condition, namely when the change of two current values meets the curent change feature of smart card memory write, then notify that power module carries out power-off to the power pins of smart card, then re-power, read the data in card, check whether complete.
10. the method for fast verification intelligent card data integrality as claimed in claim 9, is characterized in that: described I/O module is at t
1moment sends APDU instruction, and smart card starts processing instruction, t
2moment smart card starts memory write, t
2to t
3the rising time of electric current, t
3to t
4the smart card memory write time, t
4to t
5the electric current negative edge time after terminating memory write, i
1the electric current before smart card starts memory write in power pins, i
2the electric current of smart card just when memory write, t
3-t
2=Δ t
1, t
4-t
3=Δ t
2, i
1-i
2=Δ i, Δ i are watt current changes, according to the physical characteristics of smart card, and Δ t
1much smaller than Δ t
2.
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| CN103605947A (en) * | 2013-12-04 | 2014-02-26 | 东信和平科技股份有限公司 | Contact type power-off card reader |
| CN106528053B (en) * | 2017-01-04 | 2019-02-15 | 飞天诚信科技股份有限公司 | A kind of terminal device high efficiency data processing method and its terminal device |
| CN112445669B (en) * | 2019-09-05 | 2022-08-02 | 中车株洲电力机车研究所有限公司 | Storage performance testing method and device and electronic equipment |
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| CN101572963A (en) * | 2008-04-30 | 2009-11-04 | 中国移动通信集团公司 | Baseband communication functional device and communication method thereof |
| CN102411421A (en) * | 2011-11-15 | 2012-04-11 | 浪潮电子信息产业股份有限公司 | Automatic switching protection method for power supply of SAS-RAID (Serial Attached SCSI-Redundant Array of Independent Disks) card |
| CN102521094A (en) * | 2011-11-28 | 2012-06-27 | 飞天诚信科技股份有限公司 | Method for initializing java card and java card |
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| US6349056B1 (en) * | 2000-12-28 | 2002-02-19 | Sandisk Corporation | Method and structure for efficient data verification operation for non-volatile memories |
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| CN101572963A (en) * | 2008-04-30 | 2009-11-04 | 中国移动通信集团公司 | Baseband communication functional device and communication method thereof |
| CN102411421A (en) * | 2011-11-15 | 2012-04-11 | 浪潮电子信息产业股份有限公司 | Automatic switching protection method for power supply of SAS-RAID (Serial Attached SCSI-Redundant Array of Independent Disks) card |
| CN102521094A (en) * | 2011-11-28 | 2012-06-27 | 飞天诚信科技股份有限公司 | Method for initializing java card and java card |
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