CN107516215B - Intelligent POS terminal and method capable of safely inputting PIN code - Google Patents
Intelligent POS terminal and method capable of safely inputting PIN code Download PDFInfo
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- CN107516215B CN107516215B CN201710612456.7A CN201710612456A CN107516215B CN 107516215 B CN107516215 B CN 107516215B CN 201710612456 A CN201710612456 A CN 201710612456A CN 107516215 B CN107516215 B CN 107516215B
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- touch screen
- signal port
- pin code
- pos terminal
- over switch
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
- G06Q20/4012—Verifying personal identification numbers [PIN]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/20—Point-of-sale [POS] network systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/12—Cash registers electronically operated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
Abstract
The invention discloses an intelligent POS terminal and a method capable of safely inputting PIN codes, and relates to the field of POS terminals. The invention can ensure that the user can safely input the PIN code information.
Description
Technical Field
The invention relates to the field of POS terminals, in particular to an intelligent POS terminal and a method capable of safely inputting PIN codes.
Background
In modern society, card swiping consumption is already popular, and the application Of a pos (point Of sale) terminal is very common, so that the image Of the pos terminal can be seen in places such as shopping malls, restaurants, hotels, hospitals and the like. The traditional POS adopts an operating system special for each manufacturer, and a user cannot install the application on the POS at will, so that the safety of the POS is ensured.
With the development of POS terminal technology, an intelligent POS based on an intelligent operating system, such as Android (Android is a Linux-based free and open source code operating system, and is mainly used for mobile devices, such as smart phones and tablet computers, and is led and developed by Google corporation and open mobile alliance), for operation, appears in the market. The intelligent operating systems are open operating systems, users can install applications at will, the intelligent operating systems are also easy to be attacked by various computer viruses, and the intelligent operating systems are an unsafe environment. The intelligent POS has no special password keyboard, and the input of the user PIN (bank card password) is directly carried out on a touch screen of the terminal. This may cause the user's password to be stolen by malicious software hidden in the smart os, which may compromise the security of the user's PIN. Even by means of randomly arranging keyboard numbers and the like, the threat cannot be solved, because essentially, the input coordinate information of the user is acquired by the intelligent operating system, and the user PIN still exists in the intelligent operating system, so that the user PIN still has the risk of being stolen.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the intelligent POS terminal capable of safely inputting the PIN code, which can ensure the safety of the PIN code input of the user.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the intelligent POS terminal comprises a touch screen, an application processor and a safety processor, wherein the application processor is connected with the safety processor, the intelligent POS terminal further comprises a touch screen change-over switch, the touch screen change-over switch comprises a first state and a second state, the safety processor is used for controlling the touch screen change-over switch to be switched between the first state and the second state, when the touch screen change-over switch is in the first state, the touch screen is isolated from the application processor, and when the touch screen change-over switch is in the second state, the touch screen is communicated with the application processor.
On the basis of the technical scheme, the touch screen change-over switch comprises a first signal port, a second signal port, a third signal port and a control port, the first signal port is connected with the touch screen, the second signal port is connected with the application processor, the third signal port and the control port are both connected with the safety processor, the safety processor is used for controlling the first signal port to be electrically connected with the second signal port and controlling the first signal port to be electrically connected with the third signal port through the control port, when the touch screen change-over switch is in a first state, the first signal port is electrically connected with the third signal port, the touch screen is isolated from the application processor, when the touch screen change-over switch is in a second state, the first signal port is electrically connected with the second signal port, and the touch screen is communicated with the application processor.
On the basis of the technical scheme, the intelligent POS terminal further comprises an anti-dismantling module, the anti-dismantling module is connected with the safety processor, and the anti-dismantling module is used for generating signals to the safety processor when the intelligent POS terminal is dismantled.
On the basis of the technical scheme, the intelligent POS terminal further comprises a card reading module.
On the basis of the technical scheme, the card reading module comprises a contact type card reading unit, a non-contact type card reading unit and a magnetic stripe card reading unit.
On the basis of the technical scheme, the contact type card reading unit comprises a contact card seat and a contact card slot.
On the basis of the technical scheme, the non-contact card reading unit comprises a non-contact card reading chip and a coil.
On the basis of the technical scheme, the magnetic stripe card reading unit comprises a magnetic head and a magnetic stripe card reading slot.
Meanwhile, the invention also aims to provide a method for ensuring the safety of the input of the PIN code of the user.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a method for safely inputting a PIN code by an intelligent POS terminal comprises the following steps:
when the PIN code needs to be input, the safety processor controls the touch screen change-over switch, and the touch screen is isolated from the application processor through the touch screen change-over switch;
after the PIN code is input, the safety processor acquires the input PIN code information through the touch screen;
the safety processor encrypts PIN code information and sends the encrypted PIN code information to the application processor; and
the safety processor controls the touch screen change-over switch, and the touch screen is communicated with the application processor through the touch screen change-over switch.
On the basis of the technical scheme, the touch screen change-over switch comprises a first signal port, a second signal port, a third signal port and a control port, the first signal port is connected with the touch screen, the second signal port is connected with the application processor, the third signal port and the control port are both connected with the safety processor, and when a PIN code needs to be input, the safety processor enables the first signal port and the third signal port to be electrically connected through the control port, so that the touch screen is isolated from the application processor.
Compared with the prior art, the invention has the advantages that:
according to the method for safely inputting the PIN code by the intelligent POS terminal, before the PIN code of the user is input, the safety processor sends a control signal to the touch screen change-over switch, and a data signal of the touch screen is switched to the safety processor. At this time, the application processor cannot acquire the click coordinates of the user on the touch screen, so that a malicious program on the application processor is prevented from stealing the PIN code of the user. After the user inputs the PIN codes, the safety processor encrypts the PIN codes of the user through an encryption algorithm and then sends the encrypted PIN codes to the application processor, and the safety of the PIN codes of the user is guaranteed.
Drawings
FIG. 1 is a block diagram of an intelligent POS terminal capable of securely inputting a PIN code according to the present invention;
fig. 2 is a schematic diagram of the internal connection between the touch screen and the display screen according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides an intelligent POS terminal capable of securely inputting a PIN code, which includes a touch screen, an application processor, a security processor, and a touch screen switch.
The application processor is connected with the safety processor, and data transmission and information transmission are carried out between the application processor and the safety processor. In the business processing of the POS, the business process is controlled by an application processor. The intelligent POS terminal also comprises a display screen, a communication module, a camera, a printer, a loudspeaker and an external interface module which are connected with the application processor. The application processor controls the operation of the display screen, the communication module, the camera, the printer, the loudspeaker and the external interface module by operating the general intelligent operating system.
The communication module is usually a wireless communication module such as gprs (general Packet Radio service) or WiFi. The external interface module is a wired interface provided on the housing, and generally includes a Universal Serial Bus (USB) or the like. The speaker is used for playing sound. The printer is used for printing the transaction purchase order. The camera is used for scanning one-dimensional codes, two-dimensional codes and the like, and the display screen is used for displaying information.
The intelligent POS terminal also comprises an anti-dismantling module and a card reading module which are connected with the security processor, and the security processor controls the anti-dismantling module and the card reading module to operate and acquire sensitive information (such as bank card numbers, bank card passwords and the like) in encryption services and maintains the security state of equipment by operating the security system.
When the intelligent POS terminal is disassembled, the anti-disassembling module can generate a signal to the safety processor, and the safety processor locks the equipment and clears the secret key stored in the equipment to play a protection role.
The card reading module comprises a contact type card reading unit, a non-contact type card reading unit and a magnetic stripe card reading unit. The contact type card reading unit comprises a contact card holder and a contact card slot and is used for reading information of the contact type financial card. The non-contact card reading unit comprises a non-contact card reading chip and a coil, and the information of the non-contact card is read by sending a wireless signal through the coil. The magnetic stripe card reading unit comprises a magnetic head and a magnetic stripe card reading slot and is used for reading magnetic track information of the magnetic stripe card.
The touch screen change-over switch comprises a first state and a second state, the safety processor is used for controlling the touch screen change-over switch to be switched between the first state and the second state, when the touch screen change-over switch is in the first state, the touch screen is isolated from the application processor, and when the touch screen change-over switch is in the second state, the touch screen is communicated with the application processor.
Specifically, referring to fig. 2, the touch screen switch is an electronic switch, and includes a first signal port, a second signal port, a third signal port and a control port. The first, second, third and control ports are labeled S1, S2, S3 and C, respectively. The first signal port S1 is connected with the touch screen, the second signal port S2 is connected with the application processor, the third signal port S3 and the control port C are both connected with the safety processor, the safety processor is used for controlling the first signal port S1 to be electrically connected with the second signal port S2 and controlling the first signal port S1 to be electrically connected with the third signal port S3 through the control port, when the touch screen change-over switch is in a first state, the first signal port S1 is electrically connected with the third signal port S3, the touch screen is isolated from the application processor, when the touch screen change-over switch is in a second state, the first signal port S1 is electrically connected with the second signal port S2, and the touch screen is communicated with the application processor.
The touch screen can acquire click coordinate information of a user on the screen. Structurally, the touch screen is usually placed right above the display screen, and the size and the resolution are the same. On the physical circuit, the touch screen signal is switched to the safety processor through the touch screen change-over switch, and the touch screen and the application processor are isolated from each other through electric signals, so that the application processor can not acquire the touch screen signal at all, and the safety of inputting PIN by a user is ensured.
The intelligent POS terminal also comprises a power supply module, and the power supply module is connected with the application processor and the safety processor and supplies required electric energy for the intelligent POS terminal.
The invention provides a method for safely inputting a PIN code by an intelligent POS terminal, which comprises the following steps:
s1, when a PIN code needs to be input, a safety processor controls a touch screen change-over switch, and the touch screen is isolated from an application processor through the touch screen change-over switch;
specifically, the touch screen change-over switch comprises a first signal port, a second signal port, a third signal port and a control port, the first signal port is connected with the touch screen, the second signal port is connected with the application processor, the third signal port and the control port are both connected with the safety processor, and when a PIN code needs to be input, the safety processor enables the first signal port and the third signal port to be electrically connected through the control port, so that the touch screen is isolated from the application processor.
S2, after the PIN code is input, the safety processor acquires input PIN code information through the touch screen;
before entering the PIN code, the application processor generates a keyboard layout comprising the coordinates and width and height of each key of the keyboard.
The application processor sends the coordinates, width and height of each key of the keyboard layout to the security processor, and displays the keyboard on the display screen according to the keyboard layout.
And after the touch screen is isolated from the application processor, the safety processor acquires the input coordinates of the user on the touch screen and obtains the input key values according to the coordinates and the keyboard layout.
Taking the "1" button as an example, when the user clicks the touch screen, the touch screen acquires the click coordinates (x0, y 0). Then, the safety processor can judge whether (x0, y0) falls in the area of the key "1" according to the coordinate (x, y), the width w and the height h of the key "1", and if so, the safety processor indicates that the user clicks the key "1"; the other keys are similar. In this way, the security processor is enabled to acquire the input PIN information through the touch screen.
S3, encrypting the PIN information by the security processor, and sending the encrypted PIN information to the application processor;
and S4, the safety processor controls a touch screen change-over switch, and the touch screen is communicated with the application processor through the touch screen change-over switch.
According to the method for safely inputting the PIN code by the intelligent POS terminal, before the PIN code of the user is input, the safety processor sends a control signal to the touch screen change-over switch, and a data signal of the touch screen is switched to the safety processor. At this time, the application processor cannot acquire the click coordinates of the user on the touch screen, so that a malicious program on the application processor is prevented from stealing the PIN code of the user. After the user inputs the PIN codes, the safety processor encrypts the PIN codes of the user through an encryption algorithm and then sends the encrypted PIN codes to the application processor, and the safety of the PIN codes of the user is guaranteed.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. The utility model provides a but intelligent POS terminal of safe input PIN code, includes touch-sensitive screen, application processor and safety processor link to each other its characterized in that: the intelligent POS terminal further comprises a touch screen change-over switch, the touch screen change-over switch comprises a first state and a second state, the safety processor is used for controlling the touch screen change-over switch to be switched between the first state and the second state, when the PIN code is input, the touch screen change-over switch is in the first state, the touch screen is isolated from the application processor, and after the PIN code is input, the touch screen change-over switch is in the second state and communicated with the application processor.
2. The smart POS terminal capable of securely inputting a PIN code according to claim 1, wherein: the touch screen change-over switch comprises a first signal port, a second signal port, a third signal port and a control port, wherein the first signal port is connected with the touch screen, the second signal port is connected with the application processor, the third signal port and the control port are both connected with the safety processor, the safety processor is used for controlling the first signal port to be electrically connected with the second signal port and controlling the first signal port to be electrically connected with the third signal port through the control port, when the touch screen change-over switch is in a first state, the first signal port is electrically connected with the third signal port, the touch screen is isolated from the application processor, when the touch screen change-over switch is in a second state, the first signal port is electrically connected with the second signal port, and the touch screen is communicated with the application processor.
3. The smart POS terminal capable of securely inputting a PIN code according to claim 1, wherein: the intelligent POS terminal further comprises an anti-dismantling module, the anti-dismantling module is connected with the safety processor, and the anti-dismantling module is used for generating signals to the safety processor when the intelligent POS terminal is dismantled.
4. The smart POS terminal capable of securely inputting a PIN code according to claim 1, wherein: the intelligent POS terminal also comprises a card reading module.
5. The intelligent POS terminal capable of securely inputting a PIN code according to claim 4, wherein: the card reading module comprises a contact type card reading unit, a non-contact type card reading unit and a magnetic stripe card reading unit.
6. The intelligent POS terminal capable of securely inputting a PIN code according to claim 5, wherein: the contact type card reading unit comprises a contact card holder and a contact card slot.
7. The intelligent POS terminal capable of securely inputting a PIN code according to claim 5, wherein: the non-contact type card reading unit comprises a non-contact type card reading chip and a coil.
8. The intelligent POS terminal capable of securely inputting a PIN code according to claim 5, wherein: the magnetic stripe card reading unit comprises a magnetic head and a magnetic stripe card reading slot.
9. A method for securely inputting a PIN code, which is implemented by using the smart POS terminal capable of securely inputting a PIN code according to claim 1, wherein the method comprises the steps of:
when the PIN code needs to be input, the safety processor controls the touch screen change-over switch, and the touch screen is isolated from the application processor through the touch screen change-over switch;
after the PIN code is input, the safety processor acquires the input PIN code information through the touch screen;
the safety processor encrypts PIN code information and sends the encrypted PIN code information to the application processor; and
the safety processor controls the touch screen change-over switch, and the touch screen is communicated with the application processor through the touch screen change-over switch.
10. The method of claim 9, wherein: the touch screen change-over switch comprises a first signal port, a second signal port, a third signal port and a control port, wherein the first signal port is connected with the touch screen, the second signal port is connected with the application processor, the third signal port and the control port are both connected with the safety processor, and when a PIN code needs to be input, the safety processor enables the first signal port and the third signal port to be electrically connected through the control port, so that the touch screen is isolated from the application processor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710612456.7A CN107516215B (en) | 2017-07-25 | 2017-07-25 | Intelligent POS terminal and method capable of safely inputting PIN code |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710612456.7A CN107516215B (en) | 2017-07-25 | 2017-07-25 | Intelligent POS terminal and method capable of safely inputting PIN code |
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| CN107516215A CN107516215A (en) | 2017-12-26 |
| CN107516215B true CN107516215B (en) | 2020-12-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112462980B (en) * | 2020-12-15 | 2021-07-20 | 深圳市捷诚技术服务有限公司 | Password interception preventing method and device and POS machine |
| CN114296860B (en) * | 2021-12-31 | 2024-04-16 | 飞天诚信科技股份有限公司 | Method and apparatus for preventing disruption of processing by a secure processor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205540909U (en) * | 2016-02-05 | 2016-08-31 | 北京微智全景信息技术有限公司 | Intelligence POS machine security module |
| CN106600854A (en) * | 2016-12-14 | 2017-04-26 | 艾体威尔电子技术(北京)有限公司 | System and method for SE terminal of POS to take over password keyboard of Android screen |
| CN106651379A (en) * | 2016-11-17 | 2017-05-10 | 北京小米移动软件有限公司 | Payment method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2517775B (en) * | 2013-08-30 | 2016-04-06 | Cylon Global Technology Inc | Apparatus and methods for identity verification |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205540909U (en) * | 2016-02-05 | 2016-08-31 | 北京微智全景信息技术有限公司 | Intelligence POS machine security module |
| CN106651379A (en) * | 2016-11-17 | 2017-05-10 | 北京小米移动软件有限公司 | Payment method and device |
| CN106600854A (en) * | 2016-12-14 | 2017-04-26 | 艾体威尔电子技术(北京)有限公司 | System and method for SE terminal of POS to take over password keyboard of Android screen |
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