CN214475130U - Fingerprint card system based on digital currency payment - Google Patents
Fingerprint card system based on digital currency payment Download PDFInfo
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- CN214475130U CN214475130U CN202022775624.4U CN202022775624U CN214475130U CN 214475130 U CN214475130 U CN 214475130U CN 202022775624 U CN202022775624 U CN 202022775624U CN 214475130 U CN214475130 U CN 214475130U
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Abstract
The utility model discloses a fingerprint card system based on digital currency payment, include: the transaction equipment end is used for sending transaction data; a hardware medium, wherein the hardware medium is a fingerprint card, and the fingerprint card comprises a fingerprint sensor; the system comprises a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module; the algorithm module is used for generating a public and private key pair to complete encryption and decryption of data and message authentication code MAC signature operation, and the storage module is used for carrying out secondary encryption storage on transaction data; the fingerprint identification unit is used for verifying the identity of the user through fingerprint comparison. The security of the digital currency assets is improved by implementing technical means such as information transmission encryption and MAC verification, information storage encryption, adoption of a strong encryption signature algorithm, fingerprint identification and the like on the digital currency hardware media.
Description
Technical Field
The utility model relates to a digital currency payment technical field especially relates to a fingerprint card system based on digital currency payment.
Background
In recent years, with the large-scale construction of 4G/5G networks and the popularization of smart phones, mobile payment is increasingly widely used, and a mobile payment system is very perfect. However, mobile payment and electronic payment are both associated with bank accounts and require transactions with at least one party connected to a network, so that the payment is limited. Digital Currency (DCEP), which is currently positioned to be used as substitute cash, can pay both parties for offline transactions under a network-free condition, and effectively supplements the existing Electronic Payment system and mobile Payment system in terms of Payment means.
DCEP is intrinsically based on cryptographically secure electronic money, so how to secure the use and storage of digital money is a crucial issue. In the use process of the digital currency, security threats from a transmission layer, security threats from an application layer, security threats of user identities and the like need to be considered, and security attacks such as non-invasive, semi-invasive and invasive methods need to be considered for the storage of the digital currency. For example, a man-in-the-middle attack, i.e., stealing or tampering the transport layer data, is used to carry out security threat on the transport layer of the digital currency hardware media; the security threat on the application layer of the digital currency hardware media is carried out by utilizing malicious codes, illegally obtaining key data and the like; it is also possible to obtain user sensitive identity information and the like using illegal identities.
The fingerprint is used as a biological identification characteristic, has the typical characteristics of uniqueness, stability and continuity, is used for the identity identification of an owner, and has wide applicability. The sensor structure is suitable for being integrated on the intelligent card, so that the aim of verifying the identity authentication of the card holder can be achieved by utilizing the fingerprint instead of the PIN code, the problem of falsely using the card is effectively avoided, and the transaction safety can be improved.
Based on the above, the present document proposes a fingerprint card and system scheme based on digital currency payment, which ensure the security of digital currency assets by implementing technical means of information transmission encryption and message Authentication code (mac) verification, information storage encryption, strong encryption signature algorithm, biological feature identification, etc. on digital currency hardware media.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fingerprint card system based on digital currency payment for realize biological feature identification, guarantee the safety of digital currency asset.
To achieve the purpose, the utility model adopts the following technical proposal: a digital currency payment based fingerprint card system comprising:
the transaction equipment terminal is used for sending transaction data, and the transaction data comprises transaction amount;
a hardware medium, wherein the hardware medium is a fingerprint card, and the fingerprint card comprises a fingerprint sensor;
the fingerprint card system is integrated in the fingerprint card and comprises a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module; the core processing unit is respectively connected with the fingerprint identification unit, the algorithm module, the storage module and the exception handling module; the protocol processing module is connected with the input port of the core processing unit and is used for transmitting data to the core processing unit; the output port of the core processing unit is connected with the data preparation module, and the data preparation module is used for sending response data to the equipment end; the receiving module is connected with the protocol processing module, and the sending module is connected with the data preparation module; the algorithm module is used for generating a public and private key pair to complete encryption and decryption of data and message authentication code MAC signature operation, and the storage module is used for carrying out secondary encryption storage on transaction data; the fingerprint identification unit is used for verifying the identity of the user through fingerprint comparison.
Further, the fingerprint identification unit comprises a fingerprint registration module and a fingerprint comparison module; the fingerprint identification unit is connected with the fingerprint sensor, and the fingerprint registration module is used for collecting user fingerprint data by the fingerprint identification unit through the fingerprint sensor, extracting a fingerprint characteristic template and storing the fingerprint characteristic template in a system; the fingerprint comparison module is used for comparing the fingerprint data acquired by the fingerprint sensor with a fingerprint characteristic template stored by the system by the fingerprint identification unit.
Furthermore, the output end of the fingerprint identification unit is connected with the indication module, the indication module comprises an LED lamp or a display screen, the indication module is used for prompting the result of fingerprint verification of the user, and the result is displayed through a green lamp or a red lamp or the display screen.
Further, the core processing unit includes a module for scheduling the receiving module, the protocol processing module, the indicating module, the algorithm module, the storage module, the data preparation module, the sending module, and the exception handling module, and manages the power consumption of the random access memory RAM, the FLASH memory FLASH resource, and the fingerprint card.
Further, the interface mode of the receiving module and the sending module includes ISO7816, near field communication NFC, low power consumption bluetooth BLE, or universal serial bus USB.
Further, the protocol processing module is configured to perform protocol analysis on the data received by the receiving module, recover original transaction data, and submit the original transaction data to the core processing unit for processing.
Further, the algorithm applied by the algorithm module comprises the following types: data encryption standard DES algorithm, triple data encryption algorithm 3DE, RSA algorithm, SM1 algorithm, SM2 algorithm, SM3 algorithm, and SM4 algorithm.
Further, the data preparation module prepares data according to the response data returned by the core processing unit and a protocol of an interface mode, and the data is provided to the transaction equipment end through the sending module.
A transaction method of a fingerprint card system based on digital currency payment, the transaction method comprising the steps of:
starting a fingerprint verification program in the fingerprint card to perform fingerprint verification;
after the fingerprint verification is successful, entering a digital currency transaction process, if the fingerprint verification fails, not executing any instruction, and ending the process;
the steps of the digital currency transaction flow include:
the receiving module receives an instruction sent by the transaction equipment end, and the instruction is processed by the protocol processing module to obtain original data;
the core processing unit calls the algorithm module to perform decryption and signature verification calculation according to the transaction instruction type and the data, and extracts transaction data;
the core processing unit completes transaction processing, calls the storage module to store transaction data, and prepares to return response data to the transaction equipment end through the data preparation module.
Further, the starting of the fingerprint verification program in the fingerprint card comprises self-starting fingerprint verification and digital currency application selection instruction activation verification;
the self-starting fingerprint verification program is an authentication program activated by a user pressing a finger on the fingerprint sensor;
the digital currency application selection instruction activation verification is a digital currency application selection instruction activation verification program received by a fingerprint card when a user conducts card swiping transaction;
the fingerprint verification comprises the following steps:
after the fingerprint verification program is started, the fingerprint identification unit detects that the user presses the fingerprint sensor, and the fingerprint sensor collects user fingerprint data information;
the fingerprint identification unit extracts fingerprint characteristic items from the acquired fingerprint data information and compares the fingerprint characteristic items with a fingerprint template stored in the system;
the fingerprint identification unit feeds back the comparison result to the core processing unit;
the core processing unit sends the comparison result to the indicating module;
and the indicating module prompts the result through a red light or a green light or a display screen.
The utility model has the advantages that: the embodiment of the utility model provides a fingerprint card system based on digital currency payment, include: the transaction equipment terminal is used for sending transaction data, and the transaction data comprises transaction amount; a hardware medium, wherein the hardware medium is a fingerprint card, and the fingerprint card comprises a fingerprint sensor; the system comprises a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module; the algorithm module is used for generating a public and private key pair to complete encryption and decryption of data and message authentication code MAC signature operation, and the storage module is used for carrying out secondary encryption storage on transaction data; the fingerprint identification unit is used for verifying the identity of the user through fingerprint comparison. The security of the digital currency assets is improved by implementing technical means such as information transmission encryption and MAC verification, information storage encryption, adoption of a strong encryption signature algorithm, fingerprint identification and the like on the digital currency hardware media.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic block diagram of a digital currency payment-based fingerprint card system according to an embodiment of the present invention;
fig. 2 is a block diagram of a fingerprint identification unit of a digital currency payment-based fingerprint card system according to an embodiment of the present invention;
fig. 3 is a block diagram of a core processing unit of a digital currency payment-based fingerprint card system according to an embodiment of the present invention.
Detailed Description
The embodiment of the utility model provides a fingerprint card system based on payment of digital currency improves the security of digital currency asset through implementing technical means such as information transmission encryption and MAC check-up, information storage encryption, adoption strong encryption signature algorithm, fingerprint identification to digital currency hardware media.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in fig. 1, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, fig. 1 is a schematic block diagram of a digital currency payment-based fingerprint card system according to an embodiment of the present invention; as shown in fig. 1, an embodiment of the present invention provides a fingerprint card system based on digital currency payment, including:
the transaction equipment terminal is used for sending transaction data, and the transaction data comprises transaction amount; specifically, the transaction device end may be a POS device, a mobile phone, a computer device, or the like.
A hardware medium, wherein the hardware medium is a fingerprint card, and the fingerprint card comprises a fingerprint sensor; specifically, the hardware medium is a fingerprint card with a fingerprint identification verification function, and the identity authentication of the card holder is verified by utilizing the uniqueness and the stability of the biological identification characteristics of the fingerprint, so that the problem of falsifying the card is effectively solved, and the transaction safety can be improved.
The fingerprint card system is integrated in the fingerprint card and comprises a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module; the core processing unit is respectively connected with the fingerprint identification unit, the algorithm module, the storage module and the exception handling module; the protocol processing module is connected with the input port of the core processing unit and is used for transmitting data to the core processing unit; the output port of the core processing unit is connected with the data preparation module, and the data preparation module is used for sending response data to the equipment end; the receiving module is connected with the protocol processing module, and the sending module is connected with the data preparation module;
specifically, a chip is arranged in the fingerprint card, and a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module are arranged in the chip; the core processing unit is a master control module and performs unified task scheduling on other sub-modules to realize the whole transaction flow.
The system comprises an algorithm module, a storage module and a processing module, wherein the algorithm module is used for generating a public and private key pair to finish encryption and decryption of data and Message Authentication Code (MAC) signature operation, and the storage module is used for carrying out secondary encryption storage on transaction data;
as shown in fig. 2, the fingerprint identification unit is used for verifying the identity of the user through fingerprint comparison.
Specifically, the fingerprint is used as a biological identification feature, has the typical characteristics of uniqueness, stability and continuity, is used for identity identification of an owner, and has wide applicability. The sensor structure is suitable for being integrated on the intelligent card, so that the aim of verifying the identity authentication of the card holder can be achieved by utilizing the fingerprint instead of the PIN code, the problem of falsely using the card is effectively avoided, and the transaction safety can be improved. The security of the digital currency assets is ensured by technical means of carrying out information transmission encryption and MAC (message Authentication code) verification on digital currency hardware media, storing and encrypting information, adopting a strong encryption signature algorithm, biological characteristic identification and the like.
Firstly, starting a fingerprint verification program, entering a digital currency transaction flow only after the fingerprint verification is successful, if the fingerprint comparison is unsuccessful, not executing any operation related to the application of the digital currency, entering the digital currency transaction flow after the fingerprint comparison is successful, receiving an instruction sent by a transaction equipment end by a receiving module, and processing the instruction by a protocol processing module to obtain original data; the core processing unit calls an algorithm module to carry out calculation such as decryption, signature verification and the like according to the transaction instruction type and the data, and extracts transaction related data; the core processing unit completes transaction processing, calls the storage module to store transaction related data, and prepares response data through the data preparation module to return to the transaction equipment terminal.
According to the digital currency transaction type, the fingerprint card completes the digital currency transaction processing flow through the processing of the one or more transaction instructions.
In a specific embodiment, the fingerprint identification unit comprises a fingerprint registration module and a fingerprint comparison module; the fingerprint identification unit is connected with the fingerprint sensor, and the fingerprint registration module is used for collecting user fingerprint data by the fingerprint identification unit through the fingerprint sensor, extracting a fingerprint characteristic template and storing the fingerprint characteristic template in a system; the fingerprint comparison module is used for comparing the fingerprint data acquired by the fingerprint sensor with a fingerprint characteristic template stored by the system by the fingerprint identification unit.
Firstly, before a fingerprint verification program is carried out, fingerprint registration is carried out in a system, wherein fingerprint identification unit collects user fingerprint data information by using a fingerprint sensor and carries out quality judgment, and fingerprint characteristic items are extracted and stored as fingerprint characteristic templates so as to facilitate fingerprint comparison in the later period.
And the fingerprint identification unit acquires user fingerprint data information by using a fingerprint sensor, judges the quality, extracts fingerprint characteristic items, compares the fingerprint characteristic items with a user fingerprint characteristic template stored in a self system, feeds back the comparison result to the core processing unit, and sends the comparison result to the indication module.
In a further specific embodiment, the output end of the fingerprint identification unit is connected to the indication module, the indication module includes an LED lamp or a display screen, and the indication module is configured to prompt a user of a result of fingerprint verification, and the result is displayed by a green light or a red light or the display screen.
After the fingerprint verification program is executed, the core processing unit sends the verification result to an indication module, and the indication module indicates the module mode including but not limited to an LED lamp or a display screen. Taking the LED lamp as an example, the following method can be used to prompt the relevant state of the user's fingerprint:
green light flashing: prompting user to put finger for fingerprint collection
And (3) turning on a green light: the fingerprint collection/comparison is successful
And (3) the red light is on: failure of fingerprint collection/comparison
Alternately flashing red light and green light: prompting user to change finger
In another specific embodiment, the core processing unit includes a module for scheduling the receiving module, the protocol processing module, the indicating module, the algorithm module, the storage module, the data preparing module, the sending module, and the exception handling module, and managing power consumption of a random access memory RAM, a FLASH resource, and the fingerprint card.
Specifically, the core processing unit is responsible for the core processing unit to realize the transaction function of the digital currency, perform task scheduling of each module, manage RAM, FLASH resources and power consumption of the fingerprint card, and ensure the safety of the digital currency while realizing the specific transaction service function and logic of the digital currency.
In another specific embodiment, the interface between the receiving module and the transmitting module includes ISO7816, NFC, Bluetooth Low Energy (BLE), or Universal Serial Bus (USB).
Specifically, different interface modes can be selected according to the transaction type, and offline transactions of both parties of payment under the condition of no network are realized.
In another specific embodiment, the protocol processing module is configured to perform protocol analysis on the data received by the receiving module, recover original transaction data, and submit the original transaction data to the core processing unit for processing.
Specifically, the protocol processing module is configured to perform protocol analysis on the data received by the receiving module, recover the original transaction data, and submit the recovered original transaction data to the core processing unit for subsequent operations.
In yet another specific embodiment, the algorithm applied by the algorithm module comprises the following types: data encryption standard DES algorithm, triple data encryption algorithm 3DE, RSA algorithm, SM1 algorithm, SM2 algorithm, SM3 algorithm, and SM4 algorithm.
Specifically, DES is a Data Encryption Standard, which is a symmetric Encryption algorithm; 3DES, Triple DES and Triple data encryption algorithm; RSA is an asymmetric public key encryption algorithm; the SM 1-SM 4 algorithms are compiled by the national Bureau of cryptography. SM1 is a packet standard symmetric algorithm; SM2 is an elliptic curve public key cryptographic algorithm; SM3 is a hash algorithm; SM4 is a packet encryption algorithm.
In another specific embodiment, the data preparation module prepares data according to the response data returned by the core processing unit and according to the protocol of the interface mode, and the data is provided to the transaction device side via the sending module.
Specifically, the data preparation module prepares response data according to the transaction processing flow, prepares the data according to the protocol of the interface mode, and provides the data to the equipment through the sending module.
A transaction method of a fingerprint card system based on digital currency payment, the transaction method comprising the steps of:
step 10: starting a fingerprint verification program in the fingerprint card to perform fingerprint verification;
specifically, there are two ways to start the fingerprint verification program, one is a self-starting way, and the second is a way to activate verification according to a selection instruction during card-swiping transaction
Step 20: after the fingerprint verification is successful, entering a digital currency transaction process;
specifically, the fingerprint verification is successful, and the digital currency transaction process can be entered only after the fingerprint verification is proved to be operated by the user, so that the transaction safety is improved.
Step 30: if the fingerprint verification fails, no instruction is executed, and the process is terminated.
Specifically, if the fingerprint verification fails or is abnormal, the digital currency transaction process cannot be entered.
The steps of the digital currency transaction flow include:
step 101: the receiving module receives an instruction sent by the transaction equipment end, and the instruction is processed by the protocol processing module to obtain original data;
specifically, the protocol processing module is configured to perform protocol analysis on the data received by the receiving module, recover the original transaction data, and send the recovered original transaction data to the core processing unit for subsequent operations.
Step 201: the core processing unit calls the algorithm module to perform decryption and signature verification calculation according to the transaction instruction type and the data, and extracts transaction data;
specifically, the algorithm module generates a public and private key pair, completes operations such as encryption and decryption of data, signature verification of MAC signature and the like, is used for safe data transmission and transaction authorization, and resists external attacks.
Step 301: the core processing unit completes transaction processing, calls the storage module to store transaction data, and prepares to return response data to the transaction equipment end through the data preparation module.
Specifically, the storage module has the characteristic of encrypting and scrambling storage data, a security area is set when the transaction related sensitive data are stored, and the transaction data are encrypted and stored again, so that the key data are prevented from being leaked, and the method is used for resisting non-invasive, semi-invasive, invasive and other security attacks.
Specifically, the data preparation module prepares response data according to a transaction processing flow and prepares the data according to a protocol of an interface mode. Data is provided to the device via the sending module.
The core processing unit realizes the DCEP transaction function, performs task scheduling of each module, manages the RAM, FLASH resources and the power consumption of the fingerprint card, and ensures the safety of digital currency assets while realizing the specific transaction service function and logic of the digital currency.
Further, the starting of the fingerprint verification program in the fingerprint card comprises self-starting fingerprint verification and digital currency application selection instruction activation verification;
the self-starting fingerprint verification program is an authentication program activated by a user pressing a finger on the fingerprint sensor;
the digital currency application selection instruction activation verification is a digital currency application selection instruction activation verification program received by a fingerprint card when a user conducts card swiping transaction;
the fingerprint verification comprises the following steps:
step 110: after the fingerprint verification program is started, the fingerprint identification unit detects that the user presses the fingerprint sensor, and the fingerprint sensor collects user fingerprint data information;
step 210: the fingerprint identification unit extracts fingerprint characteristic items from the acquired fingerprint data information and compares the fingerprint characteristic items with a fingerprint template stored in the system;
step 310: the fingerprint identification unit feeds back the comparison result to the core processing unit;
step 410: the core processing unit sends the comparison result to the indicating module; and the indicating module prompts the result through a red light or a green light or a display screen.
Specifically, the fingerprint identification unit collects user fingerprint data information by using a fingerprint sensor, carries out quality judgment, extracts fingerprint characteristic items, compares the fingerprint characteristic items with a user fingerprint characteristic template stored by the fingerprint identification unit, feeds a comparison result back to the core processing unit and provides the comparison result for the indication module.
The process of storing the user fingerprint characteristic template is called fingerprint registration, and the implementation process is that the fingerprint identification unit utilizes the fingerprint sensor to collect user fingerprint data information and carry out quality judgment, extracts fingerprint characteristic items and stores the fingerprint characteristic items as the fingerprint characteristic template for fingerprint comparison. The indication module includes but is not limited to an LED lamp or a display screen. Taking the LED lamp as an example, the following method can be used to prompt the relevant state of the user's fingerprint:
green light flashing: prompting user to put finger for fingerprint collection
And (3) turning on a green light: the fingerprint collection/comparison is successful
And (3) the red light is on: failure of fingerprint collection/comparison
Alternately flashing red light and green light: and prompting the user to change fingers.
To sum up, the embodiment of the utility model provides a fingerprint card system based on digital currency payment, include: the transaction equipment terminal is used for sending transaction data, and the transaction data comprises transaction amount; a hardware medium, wherein the hardware medium is a fingerprint card, and the fingerprint card comprises a fingerprint sensor; the system comprises a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module; the algorithm module is used for generating a public and private key pair to complete encryption and decryption of data and message authentication code MAC signature operation, and the storage module is used for carrying out secondary encryption storage on transaction data; the fingerprint identification unit is used for verifying the identity of the user through fingerprint comparison. The security of the digital currency assets is improved by implementing technical means such as information transmission encryption and MAC verification, information storage encryption, adoption of a strong encryption signature algorithm, fingerprint identification and the like on the digital currency hardware media.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. A fingerprint card system for payment based on digital currency, comprising:
the transaction equipment terminal is used for sending transaction data, and the transaction data comprises transaction amount;
a hardware medium, wherein the hardware medium is a fingerprint card, and the fingerprint card comprises a fingerprint sensor;
the fingerprint card system is integrated in the fingerprint card and comprises a core processing unit, a fingerprint identification unit, an algorithm module, a storage module, an exception handling module, a protocol processing module, a data preparation module, an indication module, a receiving module and a sending module;
the core processing unit is respectively connected with the fingerprint identification unit, the algorithm module, the storage module and the exception handling module; the protocol processing module is connected with the input port of the core processing unit and is used for transmitting data to the core processing unit; the output port of the core processing unit is connected with the data preparation module, and the data preparation module is used for sending response data to the equipment end; the receiving module is connected with the protocol processing module, and the sending module is connected with the data preparation module;
the fingerprint identification unit is used for verifying the identity of the user through fingerprint comparison.
2. The digital currency payment based fingerprint card system of claim 1, wherein said fingerprint recognition unit comprises a fingerprint enrollment module and a fingerprint comparison module; the fingerprint identification unit is connected with the fingerprint sensor.
3. The digital currency payment based fingerprint card system of claim 1, wherein the output end of the fingerprint identification unit is connected with the indication module, the indication module comprises an LED lamp or a display screen, the indication module is used for prompting the result of fingerprint verification of the user, and the result is displayed through a green lamp or a red lamp or the display screen.
4. The digital currency payment based fingerprint card system of claim 1, wherein the core processing unit comprises a module for scheduling the receiving module, the protocol processing module, the indicating module, the algorithm module, the storage module, the data preparation module, the sending module and the exception handling module, managing Random Access Memory (RAM), FLASH memory (FLASH) resources and power consumption of the fingerprint card.
5. The digital currency payment-based fingerprint card system according to claim 1, wherein the interface mode of the receiving module and the sending module comprises ISO7816, NFC, BLE or USB.
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