CN103324976B - A kind of non-contact IC card of anti-relay attack of two-way excitation - Google Patents
A kind of non-contact IC card of anti-relay attack of two-way excitation Download PDFInfo
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- CN103324976B CN103324976B CN201310291942.5A CN201310291942A CN103324976B CN 103324976 B CN103324976 B CN 103324976B CN 201310291942 A CN201310291942 A CN 201310291942A CN 103324976 B CN103324976 B CN 103324976B
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Abstract
The non-contact IC card that a kind of anti-relay of two-way excitation is attacked comprises plastic envelope, metal intermediate layer, the first directional antenna, a LC resonant circuit, an IC chip, the second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip; Metal intermediate layer is contained in plastic envelope; First directional antenna, a LC resonant circuit, an IC chip are electrically connected successively and are arranged in plastic envelope and are all positioned at the side of metal intermediate layer; Second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are electrically connected successively and are arranged in plastic envelope and are all positioned at the opposite side of metal intermediate layer; The directive gain direction of the first directional antenna and the second directional antenna is contrary, an IC chip and the 2nd IC chip separate responses separately; Data pre-storage is in an IC chip and the 2nd IC chip.The non-contact IC card of the anti-relay attack of the two-way excitation of the present invention effectively prevents the interests of relay attack, available protecting IC-card holder in due course.
Description
Technical field
The present invention relates to a kind of IC-card (IntegratedCircuitCard, integrated circuit card), particularly relate to a kind of non-contact IC card effectively can resisted relay and attack.
Background technology
Non-contact IC card (IntegratedCircuitCard, integrated circuit card), also known as radio-frequency card, contactless card, it is by IC (integratedcircuit, integrated circuit) chip, induction antenna composition, be encapsulated in the plastic cards of a standard, chip and antenna are without any exposed parts.IC-card sheet near read write line surface, completes the read-write operation of data in certain distance scope by the transmission of radiowave.
Existing non-contact IC card, often opens card outfit antenna, a LC resonant circuit and an IC chip.When the antenna of non-contact IC card receives read-write excitation, a part for excitation and the LC resonant circuit of itself are produced resonance by this IC-card, produce a transient energy and supply IC chip operation, another part combines the energy produced, IC chip is made to complete the amendment, storage etc. of data, and by antenna return data.
Existing non-contact IC card, launches once excitation to IC-card and just can produce complete response.
Existing non-contact IC card data are stored in IC chip unique in IC-card, an operating cycle read-write primary information.
Existing non-contact IC card, can produce response to the front of IC-card or back side emitter excitation, non-directional.
Disclosed in the communications protocol of existing non-contact IC card, anyone can make Contactless IC Card Reader.
Because existing IC-card card reader operation IC-card has above-mentioned shortcoming, the mode that therefore rogue attacks person can utilize relay to attack obtains unlawful interests, causes damage to legal holden.
Relay is attacked and is referred to: rogue attacks person does not need the technical manual understanding IC-card internal cryptographic just can implement to attack completely, assailant A holds IC-card card reader general on market near legal holden, at this moment behavior of once swiping the card normally can be produced, digital independent is to card reader, then assailant A data that card reader is read are by the 3G network of mobile phone, or other wireless communication mode is sent to assailant B, so assailant B data in the card that strange land just obtains legal holden, the IC-card that assailant B is just equivalent to hold on hand legal holden is the same, can carry out consuming or by gate inhibition etc.
Summary of the invention
The technical problem to be solved in the present invention is: overcoming existing non-contact IC card only needs to receive once the encouraging of front or the back side, easily suffers relay to attack the defect bringing loss to IC-card holder in due course, provides a kind of needs could obtain complete data after front and back twice excitation, effectively prevents the non-contact IC card of anti-relay attack of two-way excitation of relay attack, available protecting IC-card holder in due course interests.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: a kind of non-contact IC card of anti-relay attack of two-way excitation, and it comprises a plastic envelope, a metal intermediate layer, one first directional antenna, one the one LC resonant circuit, one the one IC chip, one second directional antenna, one the 2nd LC resonant circuit, one the 2nd IC chip;
This metal intermediate layer is contained in this plastic envelope;
This first directional antenna, a LC resonant circuit, an IC chip are electrically connected successively, and this first directional antenna, a LC resonant circuit, an IC chip to be arranged in this plastic envelope and to be all positioned at the side of this metal intermediate layer;
This second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are electrically connected successively, and this second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip to be arranged in this plastic envelope and to be all positioned at the opposite side of this metal intermediate layer;
The directive gain direction of this first directional antenna and the second directional antenna is contrary, an IC chip and the 2nd IC chip separate responses separately;
Data pre-storage in an IC chip and the 2nd IC chip, needs respectively to encourage first power can obtain complete data to an IC chip and the 2nd IC chip by the non-contact IC card of the anti-relay attack of this two-way excitation.
The further restriction of technique scheme is, this first directional antenna and this second directional antenna are all arrange along rectangular shape around ground, the point coincides of this first directional antenna and this second directional antenna, the length of this second directional antenna and width contrast length and the shortening of width equal proportion ground of this first directional antenna, and therefore this first directional antenna and this second directional antenna are arranged ringwise.
The further restriction of technique scheme is, this first directional antenna and this second directional antenna are all arrange along rectangular shape around ground, this first directional antenna is all identical with width with this second directional antenna length, and this first directional antenna is not overlapping with this second directional antenna.
The further restriction of technique scheme is, the non-contact IC card that the directive gain direction of this first directional antenna is attacked perpendicular to the anti-relay of this two-way excitation, and receives only the pumping signal coming from IC-card front; The non-contact IC card that the directive gain direction of this second directional antenna is attacked perpendicular to the anti-relay of this two-way excitation, and receive only the pumping signal coming from the IC-card back side.
The further restriction of technique scheme is, this plastic envelope is rectangular parallelepiped; This metal intermediate layer is rectangular parallelepiped, is made up of metal material.
The further restriction of technique scheme is, the surrounding of this plastic envelope is all encapsulated.
Compared with prior art; the present invention has following beneficial effect: the non-contact IC card of the anti-relay attack of the two-way excitation of the present invention; need could obtain complete data after front and back twice excitation; increase the difficulty that rogue attacks person carries out relay attack; attack therefore, it is possible to effectively resist relay; protect IC-card holder in due course, avoid incurring loss.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of non-contact IC card first embodiment that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 2 is the side view of non-contact IC card first embodiment that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 3 is the use schematic diagram of non-contact IC card first embodiment when receiving the pumping signal from IC-card front that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 4 is the use schematic diagram of non-contact IC card first embodiment when receiving the pumping signal from the IC-card back side that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 5 is the three-dimensional exploded view of non-contact IC card second embodiment that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 6 is the side view of non-contact IC card second embodiment that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 7 is the use schematic diagram of non-contact IC card second embodiment when receiving the pumping signal from IC-card front that the anti-relay of the two-way excitation of the present invention is attacked.
Fig. 8 is the use schematic diagram of non-contact IC card second embodiment when receiving the pumping signal from the IC-card back side that the anti-relay of the two-way excitation of the present invention is attacked.
Embodiment
As shown in Figures 1 to 4, for the first embodiment of the non-contact IC card that the anti-relay of a kind of two-way excitation of the present invention is attacked, it comprises plastic envelope 11, metal intermediate layer 12,1 first directional antenna 13, the one LC resonant circuit 14, the one IC chip 15,1 second directional antenna 16, the 2nd LC resonant circuit 17, a 2nd IC chip 18.
This plastic envelope 11 entirety is in rectangular parallelepiped.
This metal intermediate layer 12, in rectangular parallelepiped, is made up of metal material.
This metal intermediate layer 12 is contained in this plastic envelope 11.
This first directional antenna 13, a LC resonant circuit 14, an IC chip 15 are electrically connected successively.
This first directional antenna 13, a LC resonant circuit 14, an IC chip 15 to be arranged in this plastic envelope 11 and to be all positioned at the side of this metal intermediate layer 12.
This second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 are electrically connected successively.
This second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 to be arranged in this plastic envelope 11 and to be all positioned at the opposite side of this metal intermediate layer 12.
This first directional antenna 13 and this second directional antenna 16 are all arrange along rectangular shape around ground.The point coincides of this first directional antenna 13 and this second directional antenna 16, the length of this second directional antenna 16 and width contrast length and the shortening of width equal proportion ground of this first directional antenna 13, and therefore this first directional antenna 13 and this second directional antenna 16 are arranged ringwise.
After this metal intermediate layer 12, first directional antenna 13, a LC resonant circuit 14, IC chip 15, second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 are all loaded this plastic envelope 11, the surrounding of this plastic envelope 11 is all encapsulated, prevent inner assembly from dropping out, intraware does not expose.
This first directional antenna 13 and the second directional antenna 16 all present the characteristic of directional antenna, and to the reception of specific direction pumping signal and response gain much larger than other direction, being especially greater than with specific direction angle is the direction of 180 °.
This metal intermediate layer 12 be positioned at this first directional antenna 13, a LC resonant circuit 14, an IC chip 15 and this second directional antenna 16, the 2nd LC resonant circuit 17, the 2nd IC chip 18 centre they are spaced apart, first effect is: the excitation isolation from metal intermediate layer 12 front made it can not arrive the back side or the excitation isolation from metal intermediate layer 12 back side be made it to arrive front, another effect is: utilize principle of reflection that the excitation from certain one side of metal intermediate layer 12 is focused on this face.
Because above-mentioned metal intermediate layer 12 is to the buffer action of excitation, the directive gain direction of this first directional antenna 13 and the second directional antenna 16 is contrary, specifically, the directive gain direction of this first directional antenna 13 is perpendicular to IC-card of the present invention, and receive only and come from IC-card front (from saying direction, IC-card front and metal intermediate layer 12 front are in the same side) pumping signal, when after the pumping signal receiving front, one LC resonant circuit 14 generation current and energy, is supplied to an IC chip 15 and uses.The directive gain direction of this second directional antenna 16 is perpendicular to IC-card of the present invention, and receive only and come from the IC-card back side (from saying direction, the IC-card back side and metal intermediate layer 12 back side are in the same side) pumping signal, when after the pumping signal receiving the back side, 2nd LC resonant circuit 17 generation current and energy, is supplied to the 2nd IC chip 18 and uses.
Because above-mentioned metal intermediate layer 12 is to the buffer action of excitation, an IC chip 15 and the 2nd IC chip 18 separate responses and can not simultaneously working separately.When the first directional antenna 13 responsing excitation time, only have a LC resonant circuit 14 and an IC chip 15 to work, the 2nd LC resonant circuit 17 and the 2nd IC chip 18 do not work.When the second directional antenna 16 responsing excitation time, only have the 2nd LC resonant circuit 17 and the 2nd IC chip 18 to work, a LC resonant circuit 14 and an IC chip 15 do not work.
The non-contact IC card that the anti-relay of the two-way excitation of the present invention is attacked by data pre-storage in an IC chip 15 and the 2nd IC chip 18.
The non-contact IC calorie requirement that the anti-relay of the two-way excitation of the present invention is attacked respectively encourages once an IC chip 15 and the 2nd IC chip 18, also just says and altogether will encourage twice, can obtain complete data.
As shown in Figure 3 and Figure 4, when the non-contact IC card using the anti-relay of the two-way excitation of the present invention to attack, first excitation (being called positive incentive) is sent with an outside read-write equipment 100 facing to the front of this IC-card, only can carry out read-write operation to the IC chip 15 in IC-card, then excitation (being called reverse energization) is sent with an outside read-write equipment 100 facing to the back side of this IC-card, only can carry out read-write operation to the 2nd IC chip 18 in IC-card, the data obtained after twice operation are only complete effective information after combining according to specific mode.
The present invention has following effect: the non-contact IC card of the anti-relay attack of the two-way excitation of the present invention; need could obtain complete data after front and back respectively encourages once twice excitation altogether; increase the difficulty that rogue attacks person carries out relay attack; attack therefore, it is possible to effectively resist relay; protect IC-card holder in due course, avoid incurring loss.
As shown in Fig. 5 to Fig. 8, for the second embodiment of the non-contact IC card that the anti-relay of a kind of two-way excitation of the present invention is attacked, it comprises plastic envelope 21, metal intermediate layer 22,1 first directional antenna 23, the one LC resonant circuit 24, the one IC chip 25,1 second directional antenna 26, the 2nd LC resonant circuit 27, a 2nd IC chip 28.
This plastic envelope 21 entirety is in rectangular parallelepiped.
This metal intermediate layer 22, in rectangular parallelepiped, is made up of metal material.
This metal intermediate layer 22 is contained in this plastic envelope 21.
This first directional antenna 23, a LC resonant circuit 24, an IC chip 25 are electrically connected successively.
This first directional antenna 23, a LC resonant circuit 24, an IC chip 25 to be arranged in this plastic envelope 21 and to be all positioned at the side of this metal intermediate layer 22.
This second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 are electrically connected successively.
This second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 to be arranged in this plastic envelope 21 and to be all positioned at the opposite side of this metal intermediate layer 22.
This first directional antenna 23 and this second directional antenna 26 are all arrange along rectangular shape around ground.This first directional antenna 23 is all identical with width with this second directional antenna 26 length.This first directional antenna 23 and this second directional antenna 26 are arranged side by side and not overlapping.
After this metal intermediate layer 22, first directional antenna 23, a LC resonant circuit 24, IC chip 25, second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 are all loaded this plastic envelope 21, the surrounding of this plastic envelope 21 is all encapsulated, prevent inner assembly from dropping out, intraware does not expose.
This first directional antenna 23 and the second directional antenna 26 all present the characteristic of directional antenna, and to the reception of specific direction pumping signal and response gain much larger than other direction, being especially greater than with specific direction angle is the direction of 180 °.
This metal intermediate layer 22 be positioned at this first directional antenna 23, a LC resonant circuit 24, an IC chip 25 and this second directional antenna 26, the 2nd LC resonant circuit 27, the 2nd IC chip 28 centre they are spaced apart, first effect is: the excitation isolation from metal intermediate layer 22 front made it can not arrive the back side or the excitation isolation from metal intermediate layer 22 back side be made it to arrive front, another effect is: utilize principle of reflection that the excitation from certain one side of metal intermediate layer 22 is focused on this face.
Because above-mentioned metal intermediate layer 22 is to the buffer action of excitation, an IC chip 25 and the 2nd IC chip 28 separate responses and can not simultaneously working separately.When the first directional antenna 23 responsing excitation time, only have a LC resonant circuit 24 and an IC chip 25 to work, the 2nd LC resonant circuit 27 and the 2nd IC chip 28 do not work.When the second directional antenna 26 responsing excitation time, only have the 2nd LC resonant circuit 27 and the 2nd IC chip 28 to work, a LC resonant circuit 24 and an IC chip 25 do not work.
Because above-mentioned metal intermediate layer 22 is to the buffer action of excitation, the directive gain direction of this first directional antenna 23 and the second directional antenna 26 is contrary, specifically, the directive gain direction of this first directional antenna 23 is perpendicular to IC-card of the present invention, the pumping signal coming from IC-card front can only be received, when after the pumping signal receiving front, LC resonant circuit 24 generation current and an energy, is supplied to an IC chip 25 and uses.The directive gain direction of this second directional antenna 26 is perpendicular to IC-card of the present invention, the pumping signal coming from the IC-card back side can only be received, when after the pumping signal receiving the back side, the 2nd LC resonant circuit 27 generation current and energy, is supplied to the 2nd IC chip 28 and uses.
The non-contact IC card that the anti-relay of the two-way excitation of the present invention is attacked by data pre-storage in an IC chip 25 and the 2nd IC chip 28.
The non-contact IC calorie requirement that the anti-relay of the two-way excitation of the present invention is attacked respectively encourages once an IC chip 25 and the 2nd IC chip 28, that is altogether encourages twice, can obtain complete data.
As shown in Figure 7 and Figure 8, when the non-contact IC card using the anti-relay of the two-way excitation of the present invention to attack, first excitation (being called positive incentive) is sent with an outside read-write equipment 200 facing to the front of this IC-card, read-write operation is carried out to the IC chip 25 in IC-card, then with back side transmission excitation (be called reverse energization) of read-write equipment 200 facing to this IC-card, read-write operation is carried out to the 2nd IC chip 28 in IC-card, the data obtained after twice operation are only complete effective information after combining according to specific mode.
Second embodiment of the invention can obtain the technique effect identical with the first embodiment.
Claims (6)
1. the non-contact IC card of the anti-relay attack of a two-way excitation, it is characterized in that, it comprises a plastic envelope, a metal intermediate layer, one first directional antenna, one the one LC resonant circuit, one the one IC chip, one second directional antenna, one the 2nd LC resonant circuit, one the 2nd IC chip;
This metal intermediate layer is contained in this plastic envelope;
This first directional antenna, a LC resonant circuit, an IC chip are electrically connected successively, and this first directional antenna, a LC resonant circuit, an IC chip to be arranged in this plastic envelope and to be all positioned at the side of this metal intermediate layer;
This second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip are electrically connected successively, and this second directional antenna, the 2nd LC resonant circuit, the 2nd IC chip to be arranged in this plastic envelope and to be all positioned at the opposite side of this metal intermediate layer;
The directive gain direction of this first directional antenna and the second directional antenna is contrary, an IC chip and the 2nd IC chip separate responses separately;
The non-contact IC card that the anti-relay of this two-way excitation is attacked by data pre-storage in an IC chip and the 2nd IC chip, need respectively to encourage first power can obtain complete data to an IC chip and the 2nd IC chip, this metal intermediate layer isolates above-mentioned excitation.
2. the non-contact IC card of the anti-relay attack of a kind of two-way excitation according to claim 1, it is characterized in that, this first directional antenna and this second directional antenna are all arrange along rectangular shape around ground, the point coincides of this first directional antenna and this second directional antenna, the length of this second directional antenna and width contrast length and the shortening of width equal proportion ground of this first directional antenna, and therefore this first directional antenna and this second directional antenna are arranged ringwise.
3. the non-contact IC card of the anti-relay attack of a kind of two-way excitation according to claim 1, it is characterized in that, this first directional antenna and this second directional antenna are all arrange along rectangular shape around ground, this first directional antenna is all identical with width with this second directional antenna length, and this first directional antenna and this second directional antenna are arranged side by side and not overlapping.
4. the non-contact IC card of the anti-relay attack of a kind of two-way excitation according to claim 1,2 or 3, it is characterized in that, the non-contact IC card that the directive gain direction of this first directional antenna is attacked perpendicular to the anti-relay of this two-way excitation, and receive only the pumping signal coming from IC-card front; The non-contact IC card that the directive gain direction of this second directional antenna is attacked perpendicular to the anti-relay of this two-way excitation, and receive only the pumping signal coming from the IC-card back side.
5. the non-contact IC card of the anti-relay attack of a kind of two-way excitation according to claim 1, it is characterized in that, this plastic envelope is rectangular parallelepiped; This metal intermediate layer is rectangular parallelepiped, is made up of metal material.
6. the non-contact IC card of the anti-relay attack of a kind of two-way excitation according to claim 1 or 5, it is characterized in that, the surrounding of this plastic envelope is all encapsulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291942.5A CN103324976B (en) | 2013-07-12 | 2013-07-12 | A kind of non-contact IC card of anti-relay attack of two-way excitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291942.5A CN103324976B (en) | 2013-07-12 | 2013-07-12 | A kind of non-contact IC card of anti-relay attack of two-way excitation |
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| CN103324976A CN103324976A (en) | 2013-09-25 |
| CN103324976B true CN103324976B (en) | 2016-03-02 |
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| US20090145971A1 (en) * | 2007-12-07 | 2009-06-11 | Wen Cheng Yin | Printed wireless rf identification label structure |
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| WO2004074000A1 (en) * | 2003-02-24 | 2004-09-02 | Sdu Identification B.V. | Identity card and travel document |
| CN1855629A (en) * | 2005-04-25 | 2006-11-01 | 琳得科股份有限公司 | Antenna circuit, IC inlet, IC tag, and IC card, as well as manufacturing method of IC tag and manufacturing method of IC card |
| CN202183113U (en) * | 2011-08-19 | 2012-04-04 | 武汉市工程科学技术研究院 | Non-contact IC card having an electromagnetic signal protection function |
| CN203376770U (en) * | 2013-07-12 | 2014-01-01 | 武汉市工科院科技园孵化器有限公司 | Non-contact IC card with bidirectional excitation and relay attack resistance |
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Inventor after: Zhou Gang Inventor after: Li Guoqiang Inventor after: He Liang Inventor after: Song Dan Inventor after: Cai Gangshan Inventor before: Zhou Gang Inventor before: He Liang Inventor before: Song Dan Inventor before: Cai Gangshan Inventor before: Luo Hu |
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Effective date of registration: 20160825 Address after: 430000 Hubei city of Wuhan province Huaqiao Street Jiang'an District River Road No. 30 Patentee after: WUHAN SHENJIE TECH CORPORATION LIMITED Address before: 430000, No. 30, Jiang Da Road, Jiang'an District, Hubei, Wuhan Patentee before: Westi Science Park Incubator Co., Ltd. |