CN111860016A - Information display method and device for Near Field Communication (NFC) and electronic equipment - Google Patents
Information display method and device for Near Field Communication (NFC) and electronic equipment Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10237—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
- G06K7/10475—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications arrangements to facilitate interaction with further interrogation devices, e.g. such that at least two interrogation devices may function and cooperate in a network of such devices
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Abstract
The application discloses an information display method and device of Near Field Communication (NFC) and electronic equipment, and belongs to the technical field of communication. The method comprises the following steps: receiving a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card; and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal. The method and the device can avoid the increase of operation time and operation steps caused by the fact that the user needs to repeatedly carry out authentication operation for multiple times, and therefore operation efficiency is improved.
Description
Technical Field
The present application relates to the field of electronic product technologies, and in particular, to a method and an apparatus for displaying NFC information, and an electronic device.
Background
Along with the rapid development of intelligent electronic equipment, more and more electronic equipment integrated devices are used, and various sensors such as a camera, an infrared sensor, a Global Positioning System (GPS), Bluetooth, wireless internet (WIFI), a fingerprint, Near Field Communication (NFC), Bluetooth Low Energy (BLE) and the like are gradually added. The sensors greatly improve the use experience and the function richness of the electronic equipment. Under the condition that the NFC of the electronic equipment is integrated with the embedded security chip, the NFC can be used for simulating bus cards, access control cards, bank cards, identity cards and the like. For example: if the electronic equipment needs to have the function of simulating the access card, all simulated access cards need to be copied in advance, and the electronic equipment has the function of the access card after the access card is successfully copied, and can be used for swiping an access. When the authentication between the electronic device and the access card fails or the authentication between the electronic device and the card reader fails, the user may need to repeatedly perform authentication operations, which increases the operation time and operation steps of the user.
Disclosure of Invention
The embodiment of the application provides an information display method and device for Near Field Communication (NFC) and electronic equipment, and aims to solve the problem that when authentication between the electronic equipment and an access card or authentication between the electronic equipment and a card reader fails at present, a user may need to repeatedly perform authentication operation for many times, so that the operation time and operation steps of the user are increased.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an information display method for near field communication NFC, including:
receiving a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card;
and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal.
In a second aspect, an embodiment of the present application provides an information display device for near field communication NFC, including:
the receiving module is used for receiving a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card;
and the display module is used for displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the first aspect.
In a fourth aspect, embodiments of the present application provide a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
In the embodiment of the application, a first NFC signal sent by a target device is received; and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal. Therefore, the data interaction failure between the user and the target device such as an NFC card reader or an NFC card at present is informed through the mode of displaying the target prompt message, so that the situation that the user needs to repeatedly perform authentication operation for multiple times, the operation time and the operation steps are increased, and the operation efficiency is improved.
Drawings
Fig. 1 is a flowchart of an information display method of near field communication NFC according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for instruction detection according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a target prompt message according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating a data interaction process in the process of copying the access control card according to an embodiment of the present application;
FIG. 5 is a second schematic diagram of a target hint message according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a data interaction process in the access control swiping process according to an embodiment of the application;
FIG. 7 is a third schematic diagram of a target prompt message according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a data interaction process in the decryption process according to an embodiment of the present application;
FIG. 9 is a second schematic diagram illustrating a data interaction process in the decryption process according to the embodiment of the present application;
fig. 10 is a block diagram of an information display device of near field communication NFC according to an embodiment of the present application;
FIG. 11 is a block diagram of an electronic device of an embodiment of the application;
fig. 12 is a hardware configuration diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The information display method of NFC according to the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1, an embodiment of the present application provides an information display method for near field communication NFC. Optionally, the information display method of NFC in the embodiment of the present application may be applied to an information display device of NFC, and may also be applied to an electronic device, such as a mobile terminal.
The method comprises the following steps:
step 11: receiving a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card.
Optionally, the NFC card may include, but is not limited to: entrance guard's card, bus card, bank card etc. or the NFC card can also be other cards that adopt the NFC technique etc. and this application embodiment does not use this as the limit.
When the target device is an NFC card, the NFC information display device or the electronic device can perform data interaction with the NFC card, where the NFC card can actively or passively communicate with the device or the electronic device, and the device or the electronic device can read data of the NFC card, for example, the device or the electronic device can copy the data of the NFC card, or read data in the NFC card and perform a corresponding operation (for example, when the NFC card is an access card, the device or the electronic device can perform an operation of releasing the access after successfully reading the data in the NFC card).
Taking an NFC card as an access card, taking the example that the device or the electronic device copies data of the NFC card, the type of the access card may be an unencrypted access card or an encrypted access card.
The sector data of the non-encrypted access control card is non-encrypted. Generally, the access control card is copied, and only the ID information of the access control card needs to be copied; the sector data of the encrypted access control card is encrypted and can be read normally only after passing the verification of the secret key. The copying of the access card not only needs to copy the unique identification code information of the access card, but also needs to copy the data of the sector of the access card.
Optionally, the NFC reader may include, but is not limited to: entrance guard's card reader, bus card reader, bank card reader etc. perhaps the NFC card reader can also be other card readers that adopt NFC technique etc. and this application embodiment does not regard this as the limit.
When the target device is an NFC card reader, the NFC information display device or the electronic device can perform data interaction with the NFC card reader, where the device or the electronic device has data of an NFC card, that is, the device or the electronic device can simulate data interaction between the NFC card and the NFC card reader.
Step 12: and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal.
Optionally, the target prompt information may be used to indicate that the first NFC signal does not conform to the target response condition corresponding to the first NFC signal, and of course, the target prompt information may be used to indicate that the data interaction with the target device fails.
Optionally, the first NFC signal not meeting the target response condition corresponding to the first NFC signal may include, but is not limited to: the first NFC signal does not conform To the protocol condition, such as the condition of the ISO14443 protocol, and the information content carried by the first NFC signal does not conform To the instruction content of the TYPE a technology for making the presence response (Answer To Request TYPE a, ATQA), or does not conform To the instruction content of the TYPE B technology for making the presence response (Answer To Request TYPE B, ATQB); the key information carried by the first NFC signal does not conform to the key information obtained by decryption, and the like.
Wherein, the Type A technology is to transmit signals through a radio frequency carrier wave of 13.65 MHz. The adopted scheme is a synchronous and improved Miller (Miller) coding mode and is transmitted by a 100 percent Amplitude Shift Keying (ASK) signal; when the NFC card transmits a signal to the card reader, the signal is transmitted by modulating a carrier wave. Manchester (Manchester) encoding was transmitted using a sub-carrier of 847 kHz. In brief, when the information "1" is represented, the signal has a gap of 0.3 microseconds, and when the information "0" is represented, the signal may or may not have a gap, which relates to the preceding and following information.
The Type B technology is a scheme of transmitting signals by 10% ASK signals through a radio frequency carrier signal of 13.65MHz by adopting an asynchronous non-return-to-zero (NRZ) coding mode when a card reader transmits the signals to an NFC card; when the NFC card transmits a signal to the card reader, the signal is modulated by Binary Phase Shift Keying (BPSK) coding. That is, the information "1" and the information "0" are different in that the signal amplitude of the information "1" is large, that is, the signal is strong, and the signal amplitude of the information "0" is small, that is, the signal is weak.
Taking an NFC card as an access card, taking the example that the device or the electronic device copies data of the NFC card, the type of the access card may be an unencrypted access card or an encrypted access card.
The sector data of the non-encrypted access control card is non-encrypted. When the non-encrypted access card is adopted or a device or electronic equipment copying the non-encrypted access card is adopted to swipe an access, the access card or the device or the electronic equipment sends the unique identification code information to an access control machine (or called an access card reader), when the access control machine verifies that the unique identification code information is successful, the access control is successful, and if the unique identification code information is failed to be verified, the target response condition corresponding to the first NFC signal is not met.
The sector data of the encrypted access control card is encrypted and can be read normally only after passing through the key verification. When the encrypted access control card is adopted or a device or electronic equipment copying the encrypted access control card is adopted to swipe an access control, the access control can request corresponding sector data from the encrypted access control card or the device or the electronic equipment, the access control can be normally swiped if the request is successful, and if the request is failed, if no sector data or sector data is not in accordance with the condition, the target response condition corresponding to the first NFC signal is indicated to be not in accordance.
Optionally, the NFC information display device or the electronic device has an NFC module, configured to implement data interaction with a target device; the NFC module is provided with an instruction detection unit for realizing instruction detection. For example: in the process of copying access card data or adopting an access card or a device or electronic equipment copying the access card data to swipe an access, the instruction detection unit can detect the correctness of each interactive instruction between the device or electronic equipment and a target device in real time, and when detecting that the execution time of a plurality of instructions in the interactive process is not accordant with the target response condition, the abnormal report is triggered, if the execution time is reported to the processor, the processor controls the display module to display the target prompt information so as to inform the current interactive abnormity of a user.
As shown in fig. 2, a flowchart of a method for detecting a command is provided, which specifically includes:
step 21: sending out an instruction; for example: the command may be a near field approach command for sensing a target device within a predetermined distance, and a response command may be fed back when the target device receives the command.
Step 22: starting an instruction detection unit;
step 23: waiting for receiving an instruction fed back by the target device;
step 24: judging whether an instruction fed back by a target device is received within a preset time; if the instruction fed back by the target device is not received within the preset time, executing step 25; if an instruction fed back by the target device is received within the preset time, executing step 26;
step 25: reporting an abnormal event, and ending the process;
step 26: judging whether the instruction meets the protocol condition; if the condition of ending the process is met and not reached, executing step 27; if the conditions are met and the flow ending condition is reached, ending the flow; if not, go to step 25;
step 27: sending out an instruction; the instruction may be an instruction in a data interaction process with the target device, such as an instruction for a handshake connection, authentication of key information, and the like.
In the embodiment of the application, a first NFC signal sent by a target device is received; and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal. Therefore, the target prompt information is used for indicating that the first NFC signal does not conform to the target response condition corresponding to the first NFC signal, so that the user is informed of the failure of data interaction between the user and the target devices such as an NFC card reader or an NFC card, the increase of operation time and operation steps caused by the fact that the user needs to repeatedly perform authentication operation for multiple times is avoided, and the improvement of the operation efficiency is facilitated.
Optionally, when the target device is an NFC card, displaying a target prompt message when the first NFC signal does not meet the target response condition corresponding to the first NFC signal, where the displaying includes:
displaying first prompt information under the condition that a second NFC signal carrying target information content is not received within a preset time after the first NFC signal is received;
the first prompt message is used for indicating that the NFC card is the NFC card which does not conform to a first preset protocol condition.
For example: when the NFC card is an access card, and when the data of the access card is copied by the display device or the electronic device of the NFC card, if the access card is an access card of a non-ISO 14443 protocol or the access card is an access card belonging to an ISO14443 protocol, but data interaction is not completely performed according to the content of the protocol standard in the data interaction process, a copy failure may occur. In the scene, in the process of copying the access card, when any one of the data interaction instructions of the NFC display device or the electronic equipment and the access card is detected not to meet the conditions specified by the protocol, the report of the failure event of copying the access card is triggered. For example, a prompt message is interactively displayed on the application layer interface to notify the user that the access card copy fails, for example, the content of the prompt message may be "the copy operation of such access card is not supported", as shown in fig. 3.
The condition that any one of the data interaction instructions for detecting the NFC display device or the electronic equipment and the access control card does not conform to the specification of the protocol may be that: after receiving the first NFC signal, if the second NFC signal carrying the target information content is not received within the predetermined time specified by the protocol, the condition specified by the protocol is not met.
As shown in fig. 4, in the process of copying the access card, a data interaction process between the access card and the NFC display device or the electronic device is shown; the method specifically comprises the following steps:
the NFC display device or the electronic equipment can send a card searching instruction through the NFC antenna, and the card searching instruction is used for detecting whether an access control card exists and starting an instruction detecting unit of the device or the electronic equipment at the same time.
The entrance guard card responds after receiving a card searching command sent by the device or the electronic equipment, namely, a response command, namely a first NFC signal, is fed back to the device or the electronic equipment.
The instruction detection unit judges whether the content of the response instruction returned by the access control card meets the ATQA or ATQB instruction content, if not, the current access control card does not support the ISO14443 protocol, namely, the condition of the first preset protocol is not met, the operation of copying the access control card is stopped, and an abnormal event is reported. If the prompt message is interactively displayed on the application layer interface to inform the user that the NFC card is an NFC card that does not meet the first preset protocol condition, the access card copy fails, for example, the content of the prompt message may be "the copy operation of such an access card is not supported". If the ATQA or ATQB instruction fed back by the NFC slice is not received within the preset time after the NFC slice is detected to approach, namely the first NFC signal approaching the NFC card is received, the fact that the current entrance guard card does not support the ISO14443 protocol is represented, namely the condition of the first preset protocol is not met, the operation of copying the entrance guard card is stopped, and an abnormal event is reported. If the prompt message is interactively displayed on the application layer interface to inform the user that the NFC card is an NFC card that does not meet the first preset protocol condition, the access card copy fails, for example, the content of the prompt message may be "the copy operation of such an access card is not supported".
In this embodiment, in the interaction process with the NFC card near-field approach signal, when it is determined that the NFC card does not meet the protocol condition, or it may be understood that the NFC card is not an NFC card of a predetermined Type (e.g., Type a or Type B Type), the copy process may be directly terminated, and the user is notified of the copy failure by displaying the prompt information, which may reduce the user from repeatedly performing the copy operation many times, and may also notify the user of the reason of the copy failure by specifically displaying that the NFC card is an NFC card that does not meet the first preset protocol condition, so that the user may perform corresponding processing according to the reason of the failure.
Optionally, the above embodiment of the application may also be applied to a card swiping process, for example, the display device or the electronic device of the NFC may be a card reader, and the card reader may have a display module for displaying the prompt information, or the card reader may be connected to the display device for sending the instruction carrying the prompt information to the display device, and displaying the prompt information through the display device, and the like, which is not limited in this application.
Optionally, when the target device is an NFC card, the step of receiving the first NFC signal sent by the target device may specifically include: receiving a first handshake signal sent by the NFC card in an interactive process of handshake connection with the NFC card;
The step of displaying the target prompt information when the first NFC signal does not meet the target response condition corresponding to the first NFC signal may specifically include: displaying second prompt information under the condition that the first handshake signal does not accord with a first preset protocol condition; the second prompt message is used for indicating that the NFC card is the NFC card which does not conform to the first preset protocol condition.
For example: when the NFC card is an access card, and when the data of the access card is copied by the display device or the electronic device of the NFC card, if the access card is an access card of a non-ISO 14443 protocol or the access card is an access card belonging to an ISO14443 protocol, but data interaction is not completely performed according to the content of the protocol standard in the data interaction process, a copy failure may occur. In the scene, in the process of copying the access card, when any instruction in the data interaction instructions of the NFC display device or the electronic equipment and the access card is detected to be not in accordance with the condition specified by the protocol, the report of the failure event of copying the access card is triggered. For example, a prompt message is interactively displayed on the application layer interface to notify the user that the access card copy fails, for example, the content of the prompt message may be "the copy operation of such access card is not supported", as shown in fig. 3.
Referring to fig. 4, in the process of copying the access card, a data interaction process between the access card and the NFC display device or the electronic device is performed; the method specifically can also comprise the following steps:
during the handshake interaction process of the ISO14443 protocol between the access control card, there may be multiple handshake signals during the handshake interaction process, that is, there may be interaction of multiple instructions during the handshake interaction process. The instruction detection unit detects that any one handshake signal content fed back by the access control card does not meet the condition specified by the protocol in the handshake interaction process, if the content of the handshake signal is inconsistent with the content specified by the protocol, or the content of the handshake signal is not the content contained by the protocol specification, namely the handshake signal does not meet the condition of the first preset protocol, an abnormal event is triggered to be reported, which indicates that the copy operation of the access control card is not supported. For example, a prompt message is interactively displayed on the application layer interface to notify the user that the access card copy fails, for example, the content of the prompt message may be "the copy operation of such access card is not supported", as shown in fig. 3.
Optionally, before performing a handshake interaction process of the ISO14443 protocol between the access control card, the method may further include:
The NFC display device or the electronic equipment can send a card searching instruction through the NFC antenna, and the card searching instruction is used for detecting whether an access control card exists and starting an instruction detecting unit of the device or the electronic equipment at the same time.
The entrance guard card responds after receiving a card searching command sent by the device or the electronic equipment, namely, a response command, namely a first NFC signal, is fed back to the device or the electronic equipment. The instruction detection unit judges that the content of the response instruction returned by the access control card meets the content of the ATQA or ATQB instruction, and conducts a handshake interaction process of an ISO14443 protocol with the access control card.
In this embodiment, in the handshake interaction process with the NFC card, when it is determined that the NFC card does not meet the protocol condition, the copy process may be directly terminated, and the user is notified of the copy failure by displaying the prompt information, which may reduce the number of times that the user performs the copy operation repeatedly, and may also notify the user of the reason of the copy operation failure by specifically displaying that the NFC card does not meet the first preset protocol condition, so that the user may perform corresponding processing according to the reason of the failure.
Optionally, the above embodiment of the application may also be applied to a card swiping process, for example, the display device or the electronic device of the NFC may be a card reader, and the card reader may have a display module for displaying the prompt information, or the card reader may be connected to the display device for sending the instruction carrying the prompt information to the display device, and displaying the prompt information through the display device, and the like, which is not limited in this application.
Optionally, when the target device is an NFC card reader, the step of receiving the first NFC signal sent by the target device may specifically include: receiving a second handshake signal sent by the NFC card reader in an interaction process of performing handshake connection with the NFC card reader by using data of a second NFC card;
the step of displaying the target prompt information when the first NFC signal does not meet the target response condition corresponding to the first NFC signal may specifically include: displaying third prompt information under the condition that the second handshake signal does not accord with a second preset protocol condition; the third prompt message is used for indicating that the second NFC card is an NFC card which does not conform to the protocol condition corresponding to the NFC card reader.
Optionally, the NFC card reader may be an entrance guard type card reader, the display device or the electronic device of the NFC card reader has data of an entrance guard card, that is, has a function of simulating an entrance guard card, and receives a handshake signal fed back by the entrance guard card reader in a process that the entrance guard card reader and the device or the electronic device handshake establish a connection in an ISO14443-3 protocol layer, and if the handshake signal does not conform to a protocol standard specification in the ISO14443-3 layer and the handshake signal does not conform to a second preset protocol condition, triggers reporting of an event that the entrance guard swiping fails. If the application layer obtains the event, prompt information is interactively displayed to inform a user that the currently simulated access card of the NFC display device or the electronic device is an access card that does not conform to the protocol condition corresponding to the NFC card reader, for example, the content of the prompt information may be "non-standard access control, access control swiping failure", or the like, as shown in fig. 5.
As shown in fig. 6, in the access swiping process, a data interaction process between the NFC display device or the electronic device and the access card reader is given; the method specifically comprises the following steps:
the entrance guard card reader continuously sends a card searching instruction, and the card searching instruction is used for detecting whether an entrance guard card exists or a device or electronic equipment simulating the function of the entrance guard card.
The device or the electronic equipment responds after receiving a card searching command of the entrance guard card reader, namely feeds back a response command according to the card searching command and starts the command detection unit.
The entrance guard card reader and the terminal equipment perform a handshake interaction process of an ISO14443 protocol, and a plurality of handshake signals may exist in the handshake interaction process, that is, interaction of a plurality of instructions may exist in the handshake interaction process. The instruction detection unit detects that any handshake signal content fed back by the access card does not meet the condition specified by the protocol in the handshake interaction process, for example, the content of the handshake signal is not consistent with the content specified by the protocol, or the content of the handshake signal is not the content contained by the protocol specification, or after the access card reader receives a response instruction (such as an ATQA instruction) of the device or the electronic equipment, an anti-collision (anti collision) instruction is returned to the device or the electronic equipment within 40 us. For example, the prompt message is interactively displayed on the application layer interface to notify the user that the simulated access card function of the device or the electronic device does not conform to the ISO14443 protocol standard, which results in the failure of swiping the access door, for example, the content of the prompt message may be "non-standard access door, swiping the access door failure", as shown in fig. 5.
In the embodiment, in the handshake interaction process with the NFC card reader, when the simulated NFC card is determined to be an NFC card that does not conform to the protocol condition of the NFC card reader, the card swiping process may be directly terminated, and the user is informed of the failure of card swiping in a manner of displaying the prompt information, which may reduce the number of times that the user performs the copy operation repeatedly, and may inform the user of the reason of the failure of the card swiping operation in a manner of specifically displaying that the NFC card is an NFC card that does not conform to the protocol condition of the NFC card reader, so that the user may perform corresponding processing according to the reason of the failure.
Optionally, when the target device is a card reader, the step of receiving the first NFC signal sent by the target device may specifically include: after handshake connection is established between data of a second NFC card and the NFC card reader, receiving a first NFC signal sent by the NFC card reader, wherein the first NFC signal carries first key information;
the step of displaying the target prompt information when the first NFC signal does not meet the target response condition corresponding to the first NFC signal may specifically include: determining second key information according to the data of the second NFC card; under the condition that the first key information is not matched with the second key information, displaying fourth prompt information; and the fourth prompt message is used for indicating that key authentication by using the data of the second NFC card fails after handshake connection is established with the NFC card reader.
Optionally, when the NFC reader is an encryption type reader, that is, it is necessary to execute a corresponding function in a case that the read data of the NFC card satisfies a corresponding encryption protocol.
For example: the data interaction process between the card reader of the encryption type and the NFC card may be a process of decrypting a random number, for example, the NFC card, or a device or an electronic device simulating the NFC card function may attempt decryption by a built-in key to obtain second key information, and if the second key information matches with the first key information sent by the card reader, it is determined that the decryption is successful, and then the subsequent data interaction process may be continued. If the second key information is not matched with the first key information sent by the card reader, decryption fails, and it is indicated that the NFC card, or the device or the electronic device terminal device simulating the NFC card function does not have a correct key, and the NFC card reader can execute a corresponding function only by obtaining the key through authorization. When decryption fails, the application layer may display a prompt message to notify the user that the NFC display device or the currently simulated access card of the electronic device does not have a correct key, or notify the user that the NFC display device or the currently simulated access card of the electronic device is an unauthorized NFC card, and decryption fails, for example, the content of the prompt message may be "encrypt access, please authorize a key first", and the like, as shown in fig. 7.
As shown in fig. 8 and fig. 9, a data interaction process between the NFC display device or the electronic device and the access card reader during the decryption process is shown; the method specifically comprises the following steps:
the encrypted access control card reader continuously sends a card searching instruction, and the card searching instruction is used for detecting whether an access control card exists or simulating an access control card device or electronic equipment.
The device or the electronic equipment responds after receiving the card searching instruction of the encryption access control card reader, namely, a response instruction is fed back to the encryption access control card reader, and the instruction detecting unit is started.
Handshake interaction of an ISO14443 protocol layer is carried out between the device or the electronic equipment and the encryption access control card reader, and handshake connection is established through handshake interaction of the ISO14443 protocol layer; the encrypted access control card reader sends an encrypted random number, namely first key information.
The device or the electronic equipment decrypts the random number through the built-in key to obtain the second key information. If the instruction detecting unit detects that the decryption fails, if no key is available, or the decrypted second key information is not matched with the first key information, an abnormal event is reported, and a display prompt is displayed to inform a user that the NFC display device or the electronic device currently simulated access card is an unauthorized NFC card, and the decryption fails, for example, the content of the prompt information may be "encrypted access, please authorize a key first", and the like, as shown in fig. 7.
If the decryption is successful, namely the first key information is matched with the second key information, after the encrypted access control card reader receives successful data, sector data in the access control card data can be further read out from the device or the electronic equipment for checking the sector content, if the checking is successful, the access control is successfully checked, and at the moment, the encrypted access control card reader can control to release the access control.
In this embodiment, for the card reader of the encryption type, after the handshake connection is established with the NFC card reader, when the decryption process fails, the card swiping process may be directly terminated, and the user is informed of the card swiping failure by displaying the prompt information, which may reduce the number of times that the user repeatedly performs the copy operation, and may inform the user of the reason of the card swiping failure by specifically displaying that the current card reader is the card reader of the encryption type, and the current decryption failure needs an authorization key, so that the user may perform corresponding processing according to the reason of the failure.
It should be noted that, in the information display method of NFC provided in the embodiment of the present application, the execution main body may be an information display device of NFC, or a control module in the information display device of NFC, configured to execute the information display method of NFC. In the embodiment of the present application, a method for performing information display of NFC by an information display device of NFC is taken as an example, and the information display device of NFC provided in the embodiment of the present application is described.
As shown in fig. 10, an embodiment of the present application provides an information display apparatus 1000 for near field communication NFC, including:
a receiving module 1010, configured to receive a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card;
a display module 1020, configured to display a target prompt message when the first NFC signal does not meet the target response condition corresponding to the first NFC signal;
the target prompt information is used for indicating that the first NFC signal does not conform to a target response condition corresponding to the first NFC signal.
Optionally, in a case that the target device is an NFC card, the display module 1020 includes:
and the first display unit is used for displaying the first prompt message when the second NFC signal carrying the target information content is not received within a preset time after the first NFC signal is received.
Optionally, in a case that the target device is an NFC card, the receiving module 1010 includes:
the first receiving unit is used for receiving a first handshake signal sent by the NFC card in an interaction process of handshake connection with the NFC card;
the display module 1020 includes:
The second display unit is used for displaying second prompt information under the condition that the first handshake signal does not accord with a first preset protocol condition;
the second prompt message is used for indicating that the NFC card is the NFC card which does not conform to the first preset protocol condition.
Optionally, in a case that the target device is an NFC reader, the receiving module 1010 includes:
the second receiving unit is used for receiving a second handshake signal sent by the NFC card reader in the interaction process of performing handshake connection between the data of a second NFC card and the NFC card reader;
the display module 1020 includes:
the third receiving unit is used for displaying third prompt information under the condition that the second handshake signal does not accord with a second preset protocol condition;
the third prompt message is used for indicating that the second NFC card is an NFC card which does not conform to the protocol condition corresponding to the NFC card reader.
Optionally, in a case that the target device is a card reader, the receiving module 1010 includes:
the third receiving unit is used for receiving a first NFC signal sent by the NFC card reader after handshaking connection is established between data of a second NFC card and the NFC card reader, wherein the first NFC signal carries first key information;
The display module 1020 includes:
the determining unit is used for determining second key information according to the data of the second NFC card;
a fourth display unit, configured to display fourth prompt information when the first key information does not match the second key information;
and the fourth prompt message is used for indicating that key authentication by using the data of the second NFC card fails after handshake connection is established with the NFC card reader.
The information display device of the NFC in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The information display device of the NFC in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The information display device for near field communication NFC according to the embodiment of the present application can implement each process implemented by the method embodiments in fig. 1 to 9, and is not described here again to avoid repetition.
In the device 1000 in this embodiment of the present application, a first NFC signal sent by a target device is received; and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal. Therefore, the data interaction failure between the user and the target device such as an NFC card reader or an NFC card at present is informed through the mode of displaying the target prompt message, so that the situation that the user needs to repeatedly perform authentication operation for multiple times, the operation time and the operation steps are increased, and the operation efficiency is improved.
Optionally, as shown in fig. 11, an electronic device 1100 is further provided in this embodiment of the present application, and includes a processor 1101, a memory 1102, and a program or an instruction that is stored in the memory 1102 and is executable on the processor 1101, and when the program or the instruction is executed by the processor 1101, the processes of the embodiment of the information display method for NFC are implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Fig. 12 is a schematic hardware structure diagram of an electronic device implementing an embodiment of the present application.
The electronic device 1200 includes, but is not limited to: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensors 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, and processor 1210.
Those skilled in the art will appreciate that the electronic device 1200 may further comprise a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 1210 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system. The electronic device structure shown in fig. 12 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated here.
The radio frequency unit 1201 is configured to receive a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card;
The processor 1210 is configured to display, by the display unit 1206, target prompt information when the first NFC signal does not meet the target response condition corresponding to the first NFC signal.
When the target device is an NFC card, the processor 1210 is configured to display, through the display unit 1206, first prompt information when the radio frequency unit 1201 does not receive a second NFC signal carrying target information content within a predetermined time period after receiving the first NFC signal; the first prompt message is used for indicating that the NFC card is the NFC card which does not conform to a first preset protocol condition.
The radio frequency unit 1201 is configured to receive a first handshake signal sent by the NFC card in an interaction process of performing handshake connection with the NFC card, when the target device is the NFC card;
the processor 1210 is configured to display a second prompt message through the display unit 1206 when the first handshake signal does not meet a first preset protocol condition; the second prompt message is used for indicating that the NFC card is the NFC card which does not conform to the first preset protocol condition.
When the target device is an NFC card reader, the radio frequency unit 1201 is configured to receive a second handshake signal sent by the NFC card reader in an interaction process of performing handshake connection with the NFC card reader by using data of a second NFC card;
The processor 1210 is configured to display a third prompt message through the display unit 1206 when the second handshake signal does not meet a second preset protocol condition; the third prompt message is used for indicating that the second NFC card is an NFC card which does not conform to the protocol condition corresponding to the NFC card reader.
The radio frequency unit 1201 is configured to receive a first NFC signal sent by the NFC card reader after a handshake connection is established between data of a second NFC card and the NFC card reader, where the first NFC signal carries first key information, where the first NFC signal is a data of a second NFC card;
a processor 1210 configured to determine second key information according to data of the second NFC card; in the case that the first key information does not match the second key information, displaying fourth prompt information through the display unit 1206; and the fourth prompt message is used for indicating that key authentication by using the data of the second NFC card fails after handshake connection is established with the NFC card reader.
In the electronic apparatus 1100 in this embodiment of the present application, a first NFC signal transmitted by a target device is received; and displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal. Therefore, the data interaction failure between the user and the target device such as an NFC card reader or an NFC card at present is informed through the mode of displaying the target prompt message, so that the situation that the user needs to repeatedly perform authentication operation for multiple times, the operation time and the operation steps are increased, and the operation efficiency is improved.
It should be understood that, in the embodiment of the present application, the input Unit 1204 may include a Graphics Processing Unit (GPU) 12041 and a microphone 12042, and the graphics processing Unit 12041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1207 includes a touch panel 12071 and other input devices 12072. A touch panel 12071, also referred to as a touch screen. The touch panel 12071 may include two parts of a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 1209 may be used to store software programs as well as various data, including but not limited to application programs and an operating system. Processor 1210 may integrate an application processor, which handles primarily the operating system, user interface, applications, etc., and a modem processor, which handles primarily wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1210.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the information display method for NFC, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the embodiment of the information display method for NFC, and achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. An information display method of Near Field Communication (NFC), comprising:
receiving a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card;
and under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal, displaying target prompt information.
2. The method as claimed in claim 1, wherein when the target device is an NFC card, and when the first NFC signal does not meet the target response condition corresponding to the first NFC signal, displaying target prompt information includes:
displaying first prompt information under the condition that a second NFC signal carrying target information content is not received within a preset time after the first NFC signal is received;
The first prompt message is used for indicating that the NFC card is the NFC card which does not conform to a first preset protocol condition.
3. The information display method of near field communication NFC according to claim 1, wherein, in a case where the target device is an NFC card, the receiving a first NFC signal transmitted by the target device includes:
receiving a first handshake signal sent by the NFC card in an interactive process of handshake connection with the NFC card;
the displaying of the target prompt information under the condition that the first NFC signal does not conform to the target response condition corresponding to the first NFC signal includes:
displaying second prompt information under the condition that the first handshake signal does not accord with a first preset protocol condition;
the second prompt message is used for indicating that the NFC card is the NFC card which does not conform to the first preset protocol condition.
4. The information display method of Near Field Communication (NFC) according to claim 1, wherein, in the case that the target device is an NFC reader, the receiving a first NFC signal sent by the target device comprises:
receiving a second handshake signal sent by the NFC card reader in an interaction process of performing handshake connection with the NFC card reader by using data of a second NFC card;
The displaying of the target prompt information under the condition that the first NFC signal does not conform to the target response condition corresponding to the first NFC signal includes:
displaying third prompt information under the condition that the second handshake signal does not accord with a second preset protocol condition;
the third prompt message is used for indicating that the second NFC card is an NFC card which does not conform to the protocol condition corresponding to the NFC card reader.
5. The information display method of Near Field Communication (NFC) according to claim 1, wherein, in a case where the target device is a card reader, the receiving a first NFC signal transmitted by the target device includes:
after handshake connection is established between data of a second NFC card and the NFC card reader, receiving a first NFC signal sent by the NFC card reader, wherein the first NFC signal carries first key information;
the displaying of the target prompt information under the condition that the first NFC signal does not conform to the target response condition corresponding to the first NFC signal includes:
determining second key information according to the data of the second NFC card;
under the condition that the first key information is not matched with the second key information, displaying fourth prompt information;
And the fourth prompt message is used for indicating that key authentication by using the data of the second NFC card fails after handshake connection is established with the NFC card reader.
6. An information display device of Near Field Communication (NFC), comprising:
the receiving module is used for receiving a first NFC signal sent by a target device; wherein the target device comprises an NFC card reader or an NFC card;
and the display module is used for displaying target prompt information under the condition that the first NFC signal does not accord with the target response condition corresponding to the first NFC signal.
7. The information display device of Near Field Communication (NFC) according to claim 6, wherein, in the case where the target device is an NFC card, the display module includes:
the first display unit is used for displaying first prompt information when a second NFC signal carrying target information content is not received within a preset time length after the first NFC signal is received;
the first prompt message is used for indicating that the NFC card is the NFC card which does not conform to a first preset protocol condition.
8. The information display device of Near Field Communication (NFC) according to claim 6, wherein, in the case where the target device is an NFC card, the receiving module includes:
The first receiving unit is used for receiving a first handshake signal sent by the NFC card in an interaction process of handshake connection with the NFC card;
the display module includes:
the second display unit is used for displaying second prompt information under the condition that the first handshake signal does not accord with a first preset protocol condition;
the second prompt message is used for indicating that the NFC card is the NFC card which does not conform to the first preset protocol condition.
9. The information display device of Near Field Communication (NFC) according to claim 6, wherein, in the case where the target device is an NFC reader, the receiving module includes:
the second receiving unit is used for receiving a second handshake signal sent by the NFC card reader in the interaction process of performing handshake connection between the data of a second NFC card and the NFC card reader;
the display module includes:
the third receiving unit is used for displaying third prompt information under the condition that the second handshake signal does not accord with a second preset protocol condition;
the third prompt message is used for indicating that the second NFC card is an NFC card which does not conform to the protocol condition corresponding to the NFC card reader.
10. The NFC information display device of claim 6, wherein the receiving module comprises, in the case that the target device is a card reader:
The third receiving unit is used for receiving a first NFC signal sent by the NFC card reader after handshaking connection is established between data of a second NFC card and the NFC card reader, wherein the first NFC signal carries first key information;
the display module includes:
the determining unit is used for determining second key information according to the data of the second NFC card;
a fourth display unit, configured to display fourth prompt information when the first key information does not match the second key information;
and the fourth prompt message is used for indicating that key authentication by using the data of the second NFC card fails after handshake connection is established with the NFC card reader.
11. An electronic device, characterized in that it comprises a processor, a memory and a program or instructions stored on said memory and executable on said processor, said program or instructions, when executed by said processor, implementing the steps of the information display method of near field communication, NFC, according to any of claims 1 to 5.
12. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the information display method of near field communication, NFC, according to any of claims 1 to 5.
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| PCT/CN2021/106437 WO2022012616A1 (en) | 2020-07-15 | 2021-07-15 | Near-field communication (nfc) information display method and apparatus, and electronic device |
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| CN202010681292.5A CN111860016A (en) | 2020-07-15 | 2020-07-15 | Information display method and device for Near Field Communication (NFC) and electronic equipment |
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| CN112487838A (en) * | 2020-12-10 | 2021-03-12 | 深圳市欢太科技有限公司 | Information prompting method and device, electronic equipment and storage medium |
| CN113392661A (en) * | 2021-07-01 | 2021-09-14 | Oppo广东移动通信有限公司 | Card copying method and device, electronic equipment and readable storage medium |
| CN116243759A (en) * | 2021-12-08 | 2023-06-09 | 荣耀终端有限公司 | A kind of NFC communication method, electronic equipment, storage medium and program product |
| CN116243759B (en) * | 2021-12-08 | 2024-04-02 | 荣耀终端有限公司 | An NFC communication method, electronic device, storage medium and program product |
| CN118659803A (en) * | 2024-08-19 | 2024-09-17 | 华为技术有限公司 | Near field communication method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022012616A1 (en) | 2022-01-20 |
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