CN112712355A - Bluetooth type digital currency hardware wallet and implementation method thereof - Google Patents

Bluetooth type digital currency hardware wallet and implementation method thereof Download PDF

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Publication number
CN112712355A
CN112712355A CN202011422676.1A CN202011422676A CN112712355A CN 112712355 A CN112712355 A CN 112712355A CN 202011422676 A CN202011422676 A CN 202011422676A CN 112712355 A CN112712355 A CN 112712355A
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China
Prior art keywords
bluetooth
digital currency
wallet
type digital
upper computer
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CN202011422676.1A
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Chinese (zh)
Inventor
张渊
李勃
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Beijing Watchdata Co ltd
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Beijing Watchdata Co ltd
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Priority to CN202011422676.1A priority Critical patent/CN112712355A/en
Publication of CN112712355A publication Critical patent/CN112712355A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/04—Payment circuits
    • G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
    • G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/327—Short range or proximity payments by means of M-devices
    • G06Q20/3278—RFID or NFC payments by means of M-devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Abstract

The invention discloses a Bluetooth type digital currency hardware wallet and an implementation method thereof, wherein the Bluetooth type digital currency hardware wallet comprises the following steps: the safety chip comprises a safety chip control module, a communication interface and a power supply control module; the communication interface comprises an NFC module and a Bluetooth module, the NFC module is used for communicating with other digital currency hardware purses, and the Bluetooth module is used for communicating with an upper computer after being successfully paired with the upper computer through Bluetooth; the power control module comprises a power male port and a power female port, the power male port is used for being connected with an upper computer, and the power female port is used for being connected with an external power supply. The invention uses the mobile phone to supply power or uses an external power supply to supply power and charge the mobile phone at the same time; the design of protecting transaction authenticity and confirming user intention by using a physical key and a display screen; the Bluetooth module is communicated with an upper computer through Bluetooth or USB, the Bluetooth pairing needs physical key confirmation, and the Bluetooth module rejects the connection of unpaired external equipment.

Description

Bluetooth type digital currency hardware wallet and implementation method thereof
Technical Field
The invention relates to the technical field of digital currency, in particular to a Bluetooth type digital currency hardware wallet and an implementation method thereof.
Background
At present, digital money purses are mainly divided into two types, one is a software purse in the form of APP; the other is a hardware wallet based on SE (secure chip). The hardware wallet stores data such as digital currency assets (currency value, secret key, transaction certificate, transaction record) and the like in the SE, and digital currency operation, payment, synchronization and the like are completed in the SE.
In the prior art, a card-type hardware wallet with communication functions such as bluetooth, NFC, USB, etc. is provided. The portable electronic device is provided with a battery, a display screen, a password keyboard or a fingerprint input module. The functions of the digital currency hardware wallet are realized by utilizing SE through communication interfaces such as Bluetooth, USB and the like and communication with an upper computer. However, the following disadvantages are present at the same time:
1) the cost is high, and components such as a display screen, a keyboard, a battery and the like are needed;
2) the service life of the equipment is limited by the service life of the battery;
3) charging is needed, the use experience is influenced, and the convenience is poor;
4) the USB is used for communicating with the mobile terminal, so that a charging interface of the mobile terminal is occupied, and the use is inconvenient;
5) when Bluetooth is used, an effective means is not used in the Bluetooth pairing process to confirm the pairing intention of a user, and an attacker can connect maliciously;
6) in the transaction process, the actual transaction intention of the user is confirmed without using an effective means, and an attacker possibly initiates a false transaction;
7) it is only applicable to personal users and not to merchants.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a Bluetooth type digital currency hardware wallet and an implementation method thereof, wherein the Bluetooth or USB is communicated with an upper computer APP through Bluetooth or USB, and the Bluetooth or USB is communicated with other hardware wallets through NFC; the mobile intelligent terminal is plug-and-play, has no battery, and can supply power through the mobile intelligent terminal or the merchant terminal; safety and convenience are both considered.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a bluetooth-type digital currency hardware wallet, comprising: the safety chip comprises a safety chip control module, a communication interface and a power supply control module;
the communication interface comprises an NFC module and a Bluetooth module, the NFC module is used for communicating with other digital currency hardware purses, and the Bluetooth module is used for communicating with an upper computer after Bluetooth pairing with the upper computer is successful;
the power supply control module comprises a power supply male port and a power supply female port, the power supply male port is used for being connected with the upper computer, and the power supply female port is used for being connected with an external power supply;
the Bluetooth type digital currency hardware wallet also comprises a physical key connected with the security chip control module and used for confirming the operation intention of a user; when the Bluetooth module and the upper computer are subjected to Bluetooth pairing, the user is required to confirm through the physical key, and then the Bluetooth module communicates with the upper computer after confirmation, otherwise, the Bluetooth module refuses to communicate with the upper computer.
Further, the bluetooth-type digital currency hardware wallet as described above, the physical keys further for:
confirming user intention when the Bluetooth type digital currency hardware wallet performs payment operation in online or offline transaction; and
confirming user intent when the bluetooth type digital currency hardware wallet is redeemed, presented or transferred;
the Bluetooth type digital currency hardware wallet also comprises a display screen connected with the security chip control module and used for displaying key information of digital currency transactions of the Bluetooth type digital currency hardware wallet before a user confirms through the physical keys.
Further, as described above for the bluetooth-type digital currency hardware wallet, the NFC module is specifically configured to:
and APDU commands are sent to other digital currency hardware wallets in a card reader mode, or APDU commands from other digital currency hardware wallets are received in a card mode and sent to the security chip control module for processing.
Further, as above bluetooth type digital currency hardware wallet, after bluetooth module and host computer bluetooth pair successfully, bluetooth module and host computer communication include:
and receiving an APDU command sent by the digital currency wallet APP of the upper computer, and returning an APDU response.
Further, as for the bluetooth type digital currency hardware wallet, the communication interface further comprises a USB interface for communicating with the upper computer, and the power supply male port is multiplexed with the USB interface of the communication interface;
when the power supply female port is connected with the external power supply and the power supply male port is not connected with the upper computer, the external power supply is used for supplying power to the Bluetooth type digital currency hardware wallet;
when the power supply female port is not connected with the external power supply and the power supply male port is connected with the upper computer, the upper computer is used for supplying power to the Bluetooth type digital currency hardware wallet;
when the power supply female port is connected with the external power supply and the power supply male port is connected with the upper computer, the external power supply is used for supplying power to the upper computer and the Bluetooth type digital currency hardware wallet.
A method for realizing a Bluetooth type digital currency hardware wallet is applied to the Bluetooth type digital currency hardware wallet and comprises the following steps:
step A: the power supply connection between the Bluetooth type digital currency hardware wallet and an upper computer is realized through a power supply control module of the Bluetooth type digital currency hardware wallet;
and B: the Bluetooth pairing connection between the Bluetooth type digital money hardware wallet and the upper computer is realized through a Bluetooth module and a physical key of the Bluetooth type digital money hardware wallet;
and C: the balance inquiry of the Bluetooth type digital currency hardware wallet is realized through a security chip control module, a communication interface and the upper computer of the Bluetooth type digital currency hardware wallet;
step D: the operation that the Bluetooth type digital currency hardware wallet actively pays for other digital currency hardware wallets is realized through the security chip control module, the communication interface, the physical keys and the upper computer;
step E: the operation that the Bluetooth type digital currency hardware wallet passively pays for other digital currency hardware wallets is realized through the security chip control module, the communication interface and the physical keys.
Further, in the implementation method as described above, step B includes:
step B1: a user triggers and scans Bluetooth equipment through the upper computer and initiates Bluetooth pairing to the Bluetooth type digital currency hardware wallet;
step B2: the user confirms whether to accept Bluetooth pairing through the physical key, if so, the step B3 is executed, otherwise, the step B4 is executed;
step B3: the Bluetooth type digital currency hardware wallet is connected with the upper computer in a pairing way through Bluetooth;
step B4: the Bluetooth type digital currency hardware wallet refuses to establish Bluetooth pairing connection with the upper computer.
Further, in the implementation method as described above, step C includes:
step C1: a user sends a balance inquiry instruction to the Bluetooth type digital currency hardware wallet through a digital currency wallet APP on the upper computer;
step C2: the security chip control module receives the balance inquiry instruction through the communication interface and returns a response containing balance information to the digital money wallet APP;
and C3: the digital money wallet APP displays the balance information.
Further, in the implementation method as described above, step D includes:
step D1: a user sends a first instruction for initiating payment to the Bluetooth type digital currency hardware wallet through a digital currency wallet APP on the upper computer;
step D2: the security chip control module receives the first instruction through the communication interface and sends a second instruction corresponding to the first instruction to other digital currency hardware wallets through the NFC module;
step D3: the other digital currency hardware wallet receives the second instruction and returns a response containing wallet information to the digital currency wallet APP;
step D4: the digital money wallet APP displays wallet information and transaction information of the Bluetooth type digital money hardware wallet and the other digital money hardware wallets, prompts a user to press the physical key for confirmation, and simultaneously sends a third instruction to the Bluetooth type digital money hardware wallet;
step D5: the security chip control module receives the third instruction through the communication interface, executes digital currency asset operation after confirming that the user allows to execute the transaction through the physical key, and sends a fourth instruction corresponding to the third instruction to the other digital currency hardware wallets through the NFC module;
step D6: the Bluetooth type digital currency hardware wallet receives a response of transaction success of the other digital currency hardware wallets and returns the response to the digital currency wallet APP;
step D7: the digital money wallet APP shows that the transaction was successful.
Further, in the implementation method as described above, step E includes:
step E1: the Bluetooth type digital currency hardware wallet receives a fifth instruction sent by the other digital currency hardware wallets through an NFC module, and returns a response containing wallet information to the other digital currency hardware wallets;
step E2: the Bluetooth type digital currency hardware wallet receives a sixth instruction sent by the other digital currency hardware wallets through an NFC module;
step E3: and after confirming that the user allows the transaction to be executed through the physical key, the Bluetooth type digital currency hardware wallet executes digital currency asset calculation, returns a response of successful transaction to other digital currency hardware wallets, and completes payment.
The invention has the beneficial effects that: the invention can use the mobile phone to supply power or use the external power supply to supply power and charge the mobile phone at the same time; the physical keys and the display screen can be used for protecting the transaction authenticity and confirming the design of the user intention; the Bluetooth module is communicated with an upper computer through Bluetooth or USB, the Bluetooth pairing needs physical key confirmation, and the Bluetooth module rejects the connection of unpaired external equipment; communicate with other hardware wallets through NFC, support off-line transactions; the digital currency assets are protected using a security chip control module.
Drawings
Fig. 1 is a schematic structural diagram of a bluetooth-type digital currency hardware wallet provided in an embodiment of the present invention;
fig. 2 is a view of a usage scenario of a bluetooth-type digital currency hardware wallet provided in an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for implementing a bluetooth-type digital currency hardware wallet according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, an embodiment of the present invention provides a bluetooth-type digital currency hardware wallet, including: the safety chip comprises a safety chip control module 1, a communication interface 2 and a power supply control module 3, wherein the communication interface 2 comprises an NFC module 21, a Bluetooth module 22 and a USB interface 23.
The NFC module 21 is configured to communicate with other digital currency hardware wallets, and the NFC module 21 is specifically configured to: APDU commands are sent to other digital currency hardware wallets in a card reader mode, or APDU commands from other digital currency hardware wallets are received in a card mode and sent to the security chip control module 1 for processing.
The bluetooth module 22 is used for communicating with the upper computer after the bluetooth module 22 is successfully paired with the upper computer.
Preferably, after the bluetooth module 22 successfully pairs with the upper computer bluetooth, the bluetooth module 22 and the USB module communicate with the upper computer, including: and receiving an APDU command sent by the digital currency wallet APP of the upper computer, and returning an APDU response.
The Bluetooth type digital currency hardware wallet also comprises a physical key 4 connected with the security chip control module 1 and used for confirming the operation intention of a user; when the bluetooth module 22 and the upper computer perform bluetooth pairing, the user needs to confirm through the physical key 4, and then the bluetooth module communicates with the upper computer after confirmation, otherwise the bluetooth module refuses to communicate with the upper computer.
Preferably, the physical keys 4 are also used for: confirming the user's will when the Bluetooth type digital currency hardware wallet performs payment operation in an online or offline transaction; and confirming the user's intent when the bluetooth-type digital currency hardware wallet is redeemed, presented, or transferred.
The power control module 3 comprises a power male port 31 and a power female port 32, the power male port 31 is used for connecting an upper computer, and the power female port 32 is used for connecting an external power supply; the power male port 31 is multiplexed with the USB interface 23.
Preferably, when the power female port 32 is connected with an external power supply and the power male port 31 is not connected with an upper computer, the external power supply is used for supplying power to the bluetooth type digital currency hardware wallet; when the power supply female port 32 is not connected with an external power supply and the power supply male port 31 is connected with an upper computer, the upper computer is used for supplying power to the Bluetooth type digital currency hardware wallet; when the power female port 32 is connected with an external power supply and the power male port 31 is connected with an upper computer, the external power supply is used for supplying power to the upper computer and the Bluetooth type digital currency hardware wallet.
Preferably, the bluetooth type digital money hardware wallet further comprises a display screen 5 connected to the secure chip control module 1 for displaying key information of digital money transactions before the user confirms through the physical keys 4.
The safety chip control module comprises a main control unit and an SE, and the SE can also be directly used as the main control unit. The main control unit is responsible for controlling all parts and business functions of the digital currency hardware wallet. The safety chip control module provides digital currency function service by receiving APDU command received by the communication interface, processing APDU command and returning APDU response. The APDU commands required by the digital currency wallet such as wallet opening commands, balance inquiry commands, payment commands, collection commands and the like are supported. The SE supports the cryptographic functions of generating a key pair, encrypting and decrypting, signing and checking and the like; support the preservation of digital currency assets such as monetary values, key pairs, transaction certificates, transaction records, and the like.
The communication interface of the digital currency hardware wallet comprises a bluetooth module, an NFC module and an optional USB interface. The Bluetooth module is used for communicating with a digital currency wallet APP of an upper computer (mobile intelligent terminal such as a mobile phone), receiving an APDU command sent by the APP and returning an APDU response. The digital currency hardware wallet needs to be paired with an upper computer in advance through Bluetooth, and a user needs to confirm operation through a confirmation key on the hardware wallet in the pairing process. The bluetooth module rejects the connection of the unpaired external device. The NFC module is used for communicating with other hardware wallets. The NFC module may send APDU commands to other hardware wallets in card reader mode; or in card mode, to receive APDU commands from other hardware wallets and to send them to SE processing. Optionally, the hardware wallet is configured with a USB communication interface. The USB communication interface physically multiplexes physical ports of the power output interface, such as USB Type C, Micro USB, Lightning USB, and other standard interfaces. Similar to the function of the Bluetooth module, the USB communication interface is used for communicating with a digital currency wallet APP of an upper computer, receiving an APDU command sent by the APP and returning an APDU response.
As shown in fig. 2, the digital currency hardware wallet has a power male port and a power female port. The power interface can adopt specifications such as USB Type A, USB Type C, Micro USB, Lightning USB. The power male port can be used as power input (the mobile phone supplies power to the hardware wallet) or power output (the hardware wallet supplies power to the mobile phone), and the power female port can be used as power input (the external power supplies power to the hardware wallet). The digital currency hardware wallet can be designed into a mobile phone shell with a power interface, a power adapter and the like.
The confirm button on the hardware wallet is controlled by the SE, and the functions of the confirm button include:
1) confirming the Bluetooth pairing operation in the Bluetooth pairing process;
2) confirming a user's willingness to pay for the hardware wallet in an online or offline transaction;
3) confirming the user's intention in the transaction such as wallet cashing/cash withdrawal/transfer which needs to be confirmed by the user;
4) and other scenes needing to confirm the operation intention of the user.
The display screen is optional, and whether to configure the display screen can be evaluated according to the size and cost of the product. The main function of the display screen is to display key information of digital currency transaction before the user presses keys to confirm during the transaction: such as the transaction amount, the account numbers of both parties to the transaction, etc. The items to be displayed may be selected based on the size of the display screen, but typically the transaction amount is the most critical information. Different from the transaction information displayed on the mobile phone APP, the screen display content of the hardware wallet is controlled by the SE, and cannot be tampered by malicious programs, and the authenticity of the transaction can be better protected by matching with the confirmation key on the hardware wallet.
As shown in fig. 3, an embodiment of the present invention further provides an implementation method of a bluetooth-type digital currency hardware wallet, including the following steps:
step A: the power supply connection between the Bluetooth type digital currency hardware wallet and the upper computer is realized through a power supply control module of the Bluetooth type digital currency hardware wallet.
The power supply control module comprises a power supply female port and a power supply male port;
when the power supply female port is connected with an external power supply and the power supply male port is not connected with the upper computer, the external power supply is used for supplying power to the Bluetooth type digital currency hardware wallet; namely, an external power supply is connected to a power supply female port of the hardware wallet, and the hardware wallet is started.
When the power supply female port is not connected with an external power supply and the power supply male port is connected with the upper computer, the upper computer is used for supplying power to the Bluetooth type digital currency hardware wallet; namely, a power supply male port of the hardware wallet is connected to a power supply female port of the mobile phone, and the hardware wallet is started.
When the power female port is connected with an external power supply and the power male port is connected with the upper computer, the external power supply is used for supplying power to the upper computer and the Bluetooth type digital currency hardware wallet. Namely, a power supply male port of the hardware wallet is connected to a power supply female port of the mobile phone, an external power supply is connected to the power supply female port of the hardware wallet, the hardware wallet is started, and power management is started to charge the mobile phone.
And B: bluetooth pairing connection between the Bluetooth type digital money hardware wallet and an upper computer is achieved through a Bluetooth module and physical keys of the Bluetooth type digital money hardware wallet.
The step B comprises the following steps:
step B1: a user triggers and scans Bluetooth equipment through an upper computer and initiates Bluetooth pairing to a Bluetooth type digital currency hardware wallet;
step B2: the user confirms whether to accept Bluetooth pairing through a physical key, if so, the step B3 is executed, otherwise, the step B4 is executed;
step B3: the Bluetooth pairing connection is established between the Bluetooth type digital currency hardware wallet and an upper computer;
step B4: the Bluetooth pairing connection with the upper computer is refused to be established by the Bluetooth type digital currency hardware wallet.
After the connection between the wallet and the upper computer is realized, the balance of the wallet can be inquired through the upper computer.
And C: and inquiring the balance of the Bluetooth type digital currency hardware wallet through a security chip control module, a communication interface and an upper computer of the Bluetooth type digital currency hardware wallet.
The step C comprises the following steps:
step C1: a user sends a balance inquiry instruction to a Bluetooth type digital currency hardware wallet through a digital currency wallet APP on an upper computer;
step C2: the safety chip control module receives a balance inquiry instruction through the Bluetooth module and returns a response containing balance information to the digital money wallet APP;
and C3: the digital money wallet APP displays balance information.
Step D: the Bluetooth type digital currency hardware wallet actively pays for other digital currency hardware wallets through the security chip control module, the communication interface, the physical keys and the upper computer.
After the wallet A establishes communication connection with the upper computer, the operation that the wallet A actively pays for the wallet B can be realized. Wallet a is a bluetooth-type digital money hardware wallet of the present invention, and wallet B is an IC card with a contactless function, a hardware wallet with NFC, and does not have to have a bluetooth function.
The step D comprises the following steps:
step D1: the user sends an instruction 1 for initiating payment to wallet a through a digital currency wallet APP on a host computer;
step D2: the safety chip control module receives the instruction 1 through the Bluetooth module and sends an instruction 2 corresponding to the instruction 1 to the wallet B through the NFC module;
step D3: wallet B receives instruction 2 and returns a response containing wallet information to digital currency wallet APP;
step D4: the digital currency wallet APP displays wallet information and transaction information of wallet A and wallet B, prompts a user to press a physical key for confirmation, and simultaneously sends an instruction 3 to wallet A;
step D5: the security chip control module receives the instruction 3 through a Bluetooth module or a USB interface, executes digital currency asset operation after confirming that a user allows to execute transaction through a physical key, and sends an instruction 4 corresponding to the instruction 3 to the wallet B through the NFC module;
step D6: the wallet A receives a response of the wallet B that the transaction is successful and returns the response to the digital currency wallet APP;
step D7: the digital money wallet APP shows that the transaction was successful.
Step E: the Bluetooth type digital currency hardware wallet passively pays for other digital currency hardware wallets through the security chip control module, the communication interface and the physical keys.
After the wallet A establishes communication connection with the upper computer, the wallet B can be passively paid by the wallet A.
The step E comprises the following steps:
step E1: the wallet A receives an instruction 5 sent by the wallet B through the NFC module, and returns a response containing wallet information to the wallet B;
step E2: the wallet A receives an instruction 6 sent by the wallet B through the NFC module;
step E3: and after confirming that the user allows the transaction to be executed through the physical key, the wallet A executes the digital currency asset operation, returns a response of successful transaction to the wallet B, and completes payment.
The technical scheme of the invention has the following beneficial effects:
1) the structure is simple, the number of parts is small, and the cost is low; the battery is not contained, and the service life is long.
2) The SE (secure chip control module) is used for saving digital currency assets, the physical keys and the display screen are used for protecting the transaction authenticity and confirming the user intention, and the safety is high.
3) Physical keys on the hardware wallet are directly controlled by SE of the hardware wallet and are not attacked by potential malicious programs on the mobile phone, and an attacker cannot imitate the key behaviors of a user; the willingness of the user to execute Bluetooth pairing and the willingness of the user to execute digital currency transaction are confirmed through the physical keys, and the method is real and credible.
4) The power supply mode is flexible and convenient: the mobile phone can be charged only by connecting the mobile phone, only by connecting an external power supply and by switching the external power supply; the user does not influence the charging of the mobile phone while using the hardware wallet.
5) The convenience can be carried with the mobile phone as a standard mobile phone accessory (such as a mobile phone shell) without carrying an additional device by a user.
6) The life cycle is long, and the mobile phone is not frequently updated along with the change of the model of the mobile phone.
7) The method is independent of the using environment, can be used for various mobile intelligent terminals such as Android, IOS and the like, and has better adaptability and compatibility.
8) The technical scheme gives consideration to safety and convenience.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims (10)

1. A bluetooth-type digital currency hardware wallet, comprising: the safety chip comprises a safety chip control module, a communication interface and a power supply control module;
the communication interface comprises an NFC module and a Bluetooth module, the NFC module is used for communicating with other digital currency hardware purses, and the Bluetooth module is used for communicating with an upper computer after Bluetooth pairing with the upper computer is successful;
the power supply control module comprises a power supply male port and a power supply female port, the power supply male port is used for being connected with the upper computer, and the power supply female port is used for being connected with an external power supply;
the Bluetooth type digital currency hardware wallet also comprises a physical key connected with the security chip control module and used for confirming the operation intention of a user; when the Bluetooth module and the upper computer are subjected to Bluetooth pairing, the user is required to confirm through the physical key, and then the Bluetooth module communicates with the upper computer after confirmation, otherwise, the Bluetooth module refuses to communicate with the upper computer.
2. The bluetooth-type digital currency hardware wallet of claim 1, wherein the physical keys are further configured to:
confirming user intention when the Bluetooth type digital currency hardware wallet performs payment operation in online or offline transaction; and
confirming user intent when the bluetooth type digital currency hardware wallet is redeemed, presented or transferred;
the Bluetooth type digital currency hardware wallet also comprises a display screen connected with the security chip control module and used for displaying key information of digital currency transactions of the Bluetooth type digital currency hardware wallet before a user confirms through the physical keys.
3. The bluetooth-type digital currency hardware wallet according to claim 1, wherein the NFC module is specifically configured to:
and APDU commands are sent to other digital currency hardware wallets in a card reader mode, or APDU commands from other digital currency hardware wallets are received in a card mode and sent to the security chip control module for processing.
4. The bluetooth-type digital currency hardware wallet of claim 1, wherein after the bluetooth module is successfully bluetooth paired with the host computer, the bluetooth module communicates with the host computer, comprising:
and receiving an APDU command sent by the digital currency wallet APP of the upper computer, and returning an APDU response.
5. The bluetooth-type digital currency hardware wallet according to any one of claims 1-4, wherein the communication interface further comprises a USB interface for communicating with the upper computer, the power male being multiplexed with the USB interface of the communication interface;
when the power supply female port is connected with the external power supply and the power supply male port is not connected with the upper computer, the external power supply is used for supplying power to the Bluetooth type digital currency hardware wallet;
when the power supply female port is not connected with the external power supply and the power supply male port is connected with the upper computer, the upper computer is used for supplying power to the Bluetooth type digital currency hardware wallet;
when the power supply female port is connected with the external power supply and the power supply male port is connected with the upper computer, the external power supply is used for supplying power to the upper computer and the Bluetooth type digital currency hardware wallet.
6. A method for implementing a bluetooth-type digital currency hardware wallet, applied to any one of claims 1-5, comprising the steps of:
step A: the power supply connection between the Bluetooth type digital currency hardware wallet and an upper computer is realized through a power supply control module of the Bluetooth type digital currency hardware wallet;
and B: the Bluetooth pairing connection between the Bluetooth type digital money hardware wallet and the upper computer is realized through a Bluetooth module and a physical key of the Bluetooth type digital money hardware wallet;
and C: the balance inquiry of the Bluetooth type digital currency hardware wallet is realized through a security chip control module, a communication interface and the upper computer of the Bluetooth type digital currency hardware wallet;
step D: the operation that the Bluetooth type digital currency hardware wallet actively pays for other digital currency hardware wallets is realized through the security chip control module, the communication interface, the physical keys and the upper computer;
step E: the operation that the Bluetooth type digital currency hardware wallet passively pays for other digital currency hardware wallets is realized through the security chip control module, the communication interface and the physical keys.
7. The implementation method of claim 6, wherein step B comprises:
step B1: a user triggers and scans Bluetooth equipment through the upper computer and initiates Bluetooth pairing to the Bluetooth type digital currency hardware wallet;
step B2: the user confirms whether to accept Bluetooth pairing through the physical key, if so, the step B3 is executed, otherwise, the step B4 is executed;
step B3: the Bluetooth type digital currency hardware wallet is connected with the upper computer in a pairing way through Bluetooth;
step B4: the Bluetooth type digital currency hardware wallet refuses to establish Bluetooth pairing connection with the upper computer.
8. The implementation method of claim 6, wherein step C comprises:
step C1: a user sends a balance inquiry instruction to the Bluetooth type digital currency hardware wallet through a digital currency wallet APP on the upper computer;
step C2: the security chip control module receives the balance inquiry instruction through the communication interface and returns a response containing balance information to the digital money wallet APP;
step C3: the digital money wallet APP displays the balance information.
9. The implementation method of claim 6, wherein step D comprises:
step D1: a user sends a first instruction for initiating payment to the Bluetooth type digital currency hardware wallet through a digital currency wallet APP on the upper computer;
step D2: the security chip control module receives the first instruction through the communication interface and sends a second instruction corresponding to the first instruction to other digital currency hardware wallets through the NFC module;
step D3: the other digital currency hardware wallet receives the second instruction and returns a response containing wallet information to the digital currency wallet APP;
step D4: the digital money wallet APP displays wallet information and transaction information of the Bluetooth type digital money hardware wallet and the other digital money hardware wallets, prompts a user to press the physical key for confirmation, and simultaneously sends a third instruction to the Bluetooth type digital money hardware wallet;
step D5: the security chip control module receives the third instruction through the communication interface, executes digital currency asset operation after confirming that the user allows to execute the transaction through the physical key, and sends a fourth instruction corresponding to the third instruction to the other digital currency hardware wallets through the NFC module;
step D6: the Bluetooth type digital currency hardware wallet receives a response of transaction success of the other digital currency hardware wallets and returns the response to the digital currency wallet APP;
step D7: the digital money wallet APP shows that the transaction was successful.
10. The implementation method of claim 6, wherein step E comprises:
step E1: the Bluetooth type digital currency hardware wallet receives a fifth instruction sent by the other digital currency hardware wallets through an NFC module, and returns a response containing wallet information to the other digital currency hardware wallets;
step E2: the Bluetooth type digital currency hardware wallet receives a sixth instruction sent by the other digital currency hardware wallets through an NFC module;
step E3: and after confirming that the user allows the transaction to be executed through the physical key, the Bluetooth type digital currency hardware wallet executes digital currency asset calculation, returns a response of successful transaction to other digital currency hardware wallets, and completes payment.
CN202011422676.1A 2020-12-08 2020-12-08 Bluetooth type digital currency hardware wallet and implementation method thereof Pending CN112712355A (en)

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