CN106919861B - Device and method for realizing anti-disassembly detection - Google Patents
Device and method for realizing anti-disassembly detection Download PDFInfo
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- CN106919861B CN106919861B CN201710047677.4A CN201710047677A CN106919861B CN 106919861 B CN106919861 B CN 106919861B CN 201710047677 A CN201710047677 A CN 201710047677A CN 106919861 B CN106919861 B CN 106919861B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/77—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in smart cards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
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Abstract
The invention discloses a device and a method for realizing anti-disassembly detection, wherein the device for realizing anti-disassembly detection comprises a Printed Circuit Board (PCB), a payment terminal chip, a rechargeable battery and an anti-disassembly circuit, wherein the payment terminal chip, the rechargeable battery and the anti-disassembly circuit are positioned on the PCB; the payment terminal chip is connected with the anti-dismantling circuit and used for erasing key information in the payment terminal chip when detecting that the anti-dismantling circuit is damaged. The embodiment of the invention adopts the rechargeable battery and the anti-disassembly circuit, so that the anti-disassembly detection is realized under the condition that the payment terminal chip does not have a special anti-disassembly pin, and the anti-disassembly requirement of a bank card detection center is met.
Description
Technical Field
The invention relates to the field of payment terminals, in particular to a device and a method for realizing anti-dismantling detection.
Background
At present, a bank card detection center puts forward an anti-disassembly requirement on a financial payment terminal chip, namely, the payment terminal chip has the functions of detecting physical damage and erasing key information.
However, for a part of payment terminal chips without special anti-tamper pins, under the condition of power failure, the key information cannot be erased at the first time, and the anti-tamper requirements of the bank check cannot be met.
Disclosure of Invention
In order to solve the technical problem, the invention provides a device and a method for realizing anti-disassembly detection, which can realize the anti-disassembly detection under the condition that a payment terminal chip does not have a special anti-disassembly pin.
In order to achieve the purpose of the invention, the invention provides a device for realizing the anti-disassembly detection, which comprises a Printed Circuit Board (PCB), a payment terminal chip, a rechargeable battery and an anti-disassembly circuit, wherein the payment terminal chip, the rechargeable battery and the anti-disassembly circuit are positioned on the PCB,
the rechargeable battery is connected with the payment terminal chip and used for supplying power to the payment terminal chip when the payment terminal chip is powered off;
the payment terminal chip is connected with the anti-dismantling circuit and used for erasing key information in the payment terminal chip when detecting that the anti-dismantling circuit is damaged.
Optionally, the rechargeable battery is a super capacitor.
Optionally, the super capacitor is soldered on the PCB board.
Optionally, the tamper circuit includes a first tamper circuit, the first tamper circuit includes one or more loops disposed around the payment terminal chip, and the first tamper circuit is connected to a general purpose input output GPIO port of the payment terminal chip;
and the payment terminal chip is further used for detecting that the voltage of the GPIO port changes, determining that the anti-dismantling circuit is damaged, and erasing key information in the payment terminal chip.
Optionally, the tamper circuit further includes a second tamper circuit, the second tamper circuit includes one or more loops disposed around the rechargeable battery, and the second tamper circuit is connected to a GPIO port of the payment terminal chip.
Optionally, a tamper point located on the surface of the PCB board is disposed on the tamper circuit.
Optionally, the key information in the payment terminal chip is key information.
The invention also provides a method for realizing the anti-dismantling detection, wherein a payment terminal chip is respectively connected with the rechargeable battery and the anti-dismantling circuit, and the method comprises the following steps:
and when the payment terminal chip detects that the anti-dismantling circuit is damaged, the key information in the payment terminal chip is erased.
Optionally, when the payment terminal chip detects that the tamper circuit is damaged, erasing the key information in the payment terminal chip includes:
and when the payment terminal chip detects that the voltage of the GPIO port changes, the anti-dismantling circuit is determined to be damaged, and key information in the payment terminal chip is erased.
Optionally, the key information in the payment terminal chip is key information.
The embodiment of the invention adopts the rechargeable battery and the anti-disassembly circuit, so that the anti-disassembly detection is realized under the condition that the payment terminal chip does not have a special anti-disassembly pin, and the anti-disassembly requirement of a bank card detection center is met.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic diagram of an implementation apparatus for tamper detection according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
For a part of payment terminal chips, due to the fact that no special anti-disassembly pin is arranged, key information cannot be erased at the first time under the condition of power failure. If the payment terminal chips adopt a button cell power supply mode, due to the fact that the button cells are limited in service life, replacement needs to be considered in the chip power supply process, the button cells cannot be welded on a circuit board, if hardware directly positions the button cells to be located and damaged, the batteries are damaged before the anti-dismantling circuit reacts, power supply is stopped, and anti-dismantling failure can be caused.
In the embodiment of the invention, the mode of combining the rechargeable battery and the anti-disassembly circuit is adopted, so that the anti-disassembly detection can be realized under the condition that the payment terminal chip does not have a special anti-disassembly pin.
As shown in fig. 1, the apparatus for implementing tamper-proof detection according to the embodiment of the present invention includes a PCB (Printed circuit board) (not shown in the figure), and a payment terminal chip 11, a rechargeable battery 12 and a tamper-proof circuit on the PCB, wherein,
the rechargeable battery 12 is connected with the payment terminal chip 11 and is used for supplying power to the payment terminal chip 11 when the payment terminal chip 11 is powered off;
the payment terminal chip 11 is connected with the anti-dismantling circuit and used for erasing key information in the payment terminal chip when detecting that the anti-dismantling circuit is damaged.
The embodiment of the invention adopts the rechargeable battery and the anti-disassembly circuit, so that the anti-disassembly detection is realized under the condition that the payment terminal chip does not have a special anti-disassembly pin, and the anti-disassembly requirement of a bank card detection center is met.
Optionally, the rechargeable battery 12 is a super capacitor, for example, a super capacitor using kaimei energy, SE-2R5 series, dynamically selecting super capacitors with different power consumptions in the series according to the standby time of the POS (point of sale terminal), the sleep power consumption of the selected payment terminal chip, and recommending to use the super capacitor with J205VY, the standby time of 1000 hours, the maximum current of 1.2A, the maximum power of 3.13W, and the standby time of 1000 hours. And the super capacitor is welded on the PCB.
Optionally, the tamper circuit includes a first tamper circuit 13, the first tamper circuit 13 includes one or more loops disposed around the payment terminal chip 11, and the first tamper circuit 13 is connected to a (General Purpose Input Output) port of the payment terminal chip 11;
the payment terminal chip 11 is further configured to detect that the voltage of the GPIO port changes, determine that the tamper circuit is damaged, and erase key information in the payment terminal chip 11.
Optionally, the key information in the payment terminal chip is key information.
Optionally, the tamper circuit further includes a second tamper circuit 14, the second tamper circuit 14 includes one or more loops disposed around the rechargeable battery 12, and the second tamper circuit 14 is connected to a general purpose input output GPIO port of the payment terminal chip 11.
Optionally, a tamper point 15 located on the surface of the PCB board is disposed on the tamper circuit.
Optionally, the loop in the first tamper-proof circuit 13 and/or the second tamper-proof circuit 14 is located inside the PCB board except for the tamper point 15 and the connection point with the GPIO port.
In the embodiment of the invention, the GPIO port of the payment terminal chip is used as the anti-disassembly pin. Under the power-on condition, a power supply supplies power to the payment terminal chip; in case of power failure, the rechargeable battery 12 discharges to supply power to the payment terminal chip, physical damage to the tamper circuit is sensed by the GPIO port of the payment terminal chip, and key information (usually key information) in the payment terminal chip is erased.
The embodiment of the invention also provides a method for realizing the anti-dismantling detection, wherein a payment terminal chip is respectively connected with the rechargeable battery and the anti-dismantling circuit, and the method comprises the following steps:
and when the payment terminal chip detects that the anti-dismantling circuit is damaged, the key information in the payment terminal chip is erased.
Optionally, when the payment terminal chip detects that the tamper circuit is damaged, erasing the key information in the payment terminal chip includes:
and when the payment terminal chip detects that the voltage of the GPIO port changes, the anti-dismantling circuit is determined to be damaged, and key information in the payment terminal chip is erased.
Optionally, the key information in the payment terminal chip is key information.
In the embodiment of the invention, the super capacitor can be used as a rechargeable battery, the super capacitor can be directly welded on the PCB, the anti-dismantling circuit is fully distributed around the super capacitor, and any physical damage to the power supply can trigger the hardware monitoring of the payment terminal chip, thereby ensuring the anti-dismantling detection effect. The super capacitor has a chargeable function, the situation that the button cell needs to be replaced frequently can not occur, the product is formed in one step, and a chip without a disassembly-preventing pin can also pass the silver detection test of the bank card detection center.
It will be apparent to those skilled in the art that the modules or steps of the embodiments of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different from that described herein, or they may be separately fabricated into integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An implementation device for anti-disassembly detection comprises a Printed Circuit Board (PCB), and is characterized by also comprising a payment terminal chip, a rechargeable battery and an anti-disassembly circuit which are arranged on the PCB, wherein,
the rechargeable battery is connected with the payment terminal chip and used for supplying power to the payment terminal chip when the payment terminal chip is powered off;
the payment terminal chip is connected with the anti-dismantling circuit and used for erasing key information in the payment terminal chip when the anti-dismantling circuit is detected to be damaged;
the anti-dismounting circuit comprises a first anti-dismounting circuit and a second anti-dismounting circuit, the first anti-dismounting circuit comprises one or more loops arranged around the payment terminal chip, and the first anti-dismounting circuit is connected with a general purpose input/output (GPIO) port of the payment terminal chip; the second anti-disassembly circuit comprises one or more loops arranged around the rechargeable battery, and is connected with a general purpose input/output (GPIO) port of the payment terminal chip;
and the payment terminal chip is further used for detecting that the voltage of the GPIO port changes, determining that the anti-dismantling circuit is damaged, and erasing key information in the payment terminal chip.
2. The implementation apparatus of claim 1,
the rechargeable battery is a super capacitor.
3. The implementation apparatus of claim 2,
and the super capacitor is welded on the PCB.
4. The implementation apparatus of claim 1,
the anti-disassembly circuit is provided with an anti-disassembly point positioned on the surface of the PCB, and the loop in the first anti-disassembly circuit and/or the second anti-disassembly circuit is positioned inside the PCB except the anti-disassembly point and a connection point with the GPIO port.
5. The implementation device as claimed in any one of claims 1 to 3,
and the key information in the payment terminal chip is key information.
6. A method for realizing anti-disassembly detection is characterized in that a payment terminal chip is respectively connected with a rechargeable battery and an anti-disassembly circuit, the anti-disassembly circuit comprises a first anti-disassembly circuit and a second anti-disassembly circuit, the first anti-disassembly circuit comprises one or more loops arranged around the payment terminal chip, and the first anti-disassembly circuit is connected with a general input/output (GPIO) port of the payment terminal chip; the second anti-tamper circuit comprises one or more loops arranged around the rechargeable battery, and is connected with a General Purpose Input and Output (GPIO) port of the payment terminal chip, and the implementation method comprises the following steps:
and when the payment terminal chip detects that the voltage of the GPIO port changes, the anti-dismantling circuit is determined to be damaged, and key information in the payment terminal chip is erased.
7. The implementation method of claim 6,
and the key information in the payment terminal chip is key information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047677.4A CN106919861B (en) | 2017-01-20 | 2017-01-20 | Device and method for realizing anti-disassembly detection |
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| CN201710047677.4A CN106919861B (en) | 2017-01-20 | 2017-01-20 | Device and method for realizing anti-disassembly detection |
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| CN106919861A CN106919861A (en) | 2017-07-04 |
| CN106919861B true CN106919861B (en) | 2020-04-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107451496A (en) * | 2017-08-23 | 2017-12-08 | 成都三零凯天通信实业有限公司 | A kind of device and system of terminal electronic Anti-dismantling |
| CN107908985B (en) * | 2017-10-24 | 2021-03-16 | 天津大学 | PCB (printed Circuit Board) level protection method and structure for ensuring communication of integrated circuit chip |
| CN109460982A (en) * | 2018-11-09 | 2019-03-12 | 中云信安（深圳）科技有限公司 | Digital asset wallet anti-dismantling device and method |
| CN109741578A (en) * | 2018-12-05 | 2019-05-10 | 大唐微电子技术有限公司 | A kind of the tamper detection device and method of security terminal |
| CN110850851A (en) * | 2019-12-04 | 2020-02-28 | 奇瑞汽车股份有限公司 | TBOX monitoring method of new energy vehicle |
| CN113407964B (en) * | 2021-06-17 | 2024-02-13 | 上海明略人工智能(集团)有限公司 | Method, system, device, electronic equipment and readable storage medium for information encryption |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101699461B (en) * | 2009-10-30 | 2012-07-25 | 曙光信息产业(北京)有限公司 | Protective device of data inside chips |
| CN103051640A (en) * | 2013-01-10 | 2013-04-17 | 昆山百润科技有限公司 | Bluetooth-based online banking safety equipment and data communication method thereof |
| EP3019996B1 (en) * | 2013-07-11 | 2019-03-13 | Cryptera A/S | Tamper responsive sensor |
| CN105989312A (en) * | 2015-08-20 | 2016-10-05 | 天地融科技股份有限公司 | Electronic device and control method therefor |
| CN106299499A (en) * | 2016-08-31 | 2017-01-04 | 张家港市华扬冶金机械有限公司 | A kind of tamper set of cells |
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