CN112424843A - Automatic teller machine and method for issuing digital currency physical carrier - Google Patents
Automatic teller machine and method for issuing digital currency physical carrier Download PDFInfo
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- CN112424843A CN112424843A CN201880094556.8A CN201880094556A CN112424843A CN 112424843 A CN112424843 A CN 112424843A CN 201880094556 A CN201880094556 A CN 201880094556A CN 112424843 A CN112424843 A CN 112424843A
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- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
Abstract
The present disclosure relates to an automated teller machine and a method of dispensing a physical carrier of digital currency capable of making and dispensing the physical carrier of digital currency. The automatic teller machine comprises a host module, a first communication module, a second communication module and a currency handling module, wherein the first communication module, the second communication module and the currency handling module are respectively connected with the host module; wherein the first communication module is used for communicating with a blockchain network; the second communication module is used for communicating with a digital currency physical carrier; the currency handling module is used for delivering the digital currency physical carrier placed in the automatic teller machine to a user; the host module is used for initializing a digital currency physical carrier placed in the automatic teller machine; and controlling the currency handling module to deliver the initialized digital currency physical carrier to the user. The embodiment of the disclosure can realize the conversion of the digital currency between the materialization and the virtualization.
Description
The disclosure relates to the field of digital currency, and in particular to an automatic teller machine and a method for issuing a physical carrier of digital currency.
Digital money is an alternative money in the form of electronic money, and nowadays digital sub-money, such as bitcoin, letelt coin, and PPCoin, is electronic money that is created, issued, and circulated by means of checksum cryptographic techniques. It features that P2P peer-to-peer network technology is used for distribution, management and circulation.
In order to facilitate the circulation of digital money, the related art provides a physical carrier of digital money, which can realize offline digital money ownership transfer independent of a network. However, materialized currency is an emerging thing, the acquisition of which must depend on offline, the rarity of offline agent sales channels causes inconvenience in the popularization of the materialized currency, and the deployment of enough offline outlets increases the popularization cost of the materialized currency.
Disclosure of Invention
In order to solve the above problems in the prior art, the present disclosure provides an automated teller machine and a method of dispensing a physical carrier of digital currency, which are capable of manufacturing and dispensing a physical carrier of digital currency.
In order to achieve the above object, a first aspect of the present disclosure provides an automated teller machine including: the system comprises a host module, a first communication module, a second communication module and a currency handling module, wherein the first communication module, the second communication module and the currency handling module are respectively connected with the host module;
wherein the first communication module is used for communicating with a blockchain network;
the second communication module is used for communicating with a digital currency physical carrier;
the currency handling module is used for delivering the digital currency physical carrier placed in the automatic teller machine to a user;
the host module is used for initializing a digital currency physical carrier placed in the automatic teller machine; and controlling the currency handling module to deliver the initialized digital currency physical carrier to the user.
Optionally, the host module is further configured to add the digital money in the account wallet of the blockchain network to the public key address of the initialized physical carrier of the digital money.
A second aspect of the present disclosure provides a method of an automated teller machine dispensing a physical carrier of digital currency, comprising:
initializing a physical carrier of digital currency placed in the automatic teller machine;
and delivering the initialized digital currency physical carrier to a user.
Optionally, the method further comprises:
acquiring the identity information of the user, and authenticating the user according to the identity information;
and after the authentication is passed, recharging the digital currency in the address of the blockchain wallet included in the identity information into the public key address of the initialized physical carrier of the digital currency.
By adopting the technical scheme, the following technical effects can be achieved:
the automatic teller machine provided by the disclosure can make digital currency owned by a user into entity currency (namely a digital currency physical carrier) and provide the entity currency to the user for transaction circulation. In addition, the automatic teller machine is easy to deploy, and a user can finish coin making by self, so that the popularization cost is reduced. Furthermore, the automatic teller machine can also recharge and cash the existing digital currency physical carrier of the user, and flexibly realizes the self-service conversion of the materialization and the virtualization of the digital currency. In addition, compared with the conventional automatic teller machine, the digital currency physical carrier has no currency attribute under the condition of incomplete initialization and recharging, so that the significance of the cash stealing behavior in the automatic teller machine is lost.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural diagram of an automatic teller machine provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another automatic teller machine provided in the embodiment of the present disclosure;
FIG. 3 is a schematic flow chart diagram of a method for an automated teller machine to dispense a physical carrier of digital currency according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of a method for initializing and replenishing a physical carrier of digital money by an automatic teller machine according to an embodiment of the disclosure;
fig. 5 is a schematic flow chart of a method for withdrawing a physical carrier of digital currency by an automatic teller machine according to an embodiment of the present disclosure.
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
The disclosed embodiment provides an automatic teller machine for making and dispensing a physical carrier of digital money, as shown in fig. 1, the automatic teller machine comprising: a host module 101, and a first communication module 102, a second communication module 103 and a currency handling module 104 which are respectively connected with the host module 101;
wherein the first communication module 102 is used for communicating with a blockchain network, and the second communication module 103 is used for communicating with a digital currency physical carrier.
The currency handling module 104 is used for delivering digital currency physical carriers placed in the automated teller machine to a user, wherein the automated teller machine may comprise a receiving structure for placing digital currency physical carriers, which allows issuer staff to add uninitialized digital currency physical carriers.
The host module 101 is used to initialize the digital currency physical carrier placed in the automated teller machine and to control the currency throughput module 104 to deliver the initialized digital currency physical carrier to the user.
The digital currency physical carrier may be, for example, a card type or a currency type. For example, the physical carrier of digital currency may be an IC Card (Integrated Circuit Card), so that the physical carrier of digital currency does not need a power supply design and a battery module, and the interaction between the second communication module 103 and the physical carrier of digital currency in the atm may be contact type or non-contact type. The contact type may be Near Field Communication (Near Field Communication), for example, that is, the second Communication module 103 may specifically be an NFC Communication module, and NFC bidirectional identification and connection are adopted, so that there is no fixed master-slave relationship between two Communication parties, and the physical carrier of digital money may operate in an environment without power.
In practical implementation, the digital currency physical carrier may be any programmable smart Card, such as a Java Card, and the communication between the second communication module 103 and the digital currency physical carrier may also be other communication methods, such as bluetooth, infrared, radio, etc., which is not limited in this disclosure.
With the above-described automated teller machine, the automated teller machine can make the digital money owned by the user into the physical money (i.e., the physical carrier of the digital money) to be provided to the user for transaction circulation. The automatic teller machine is easy to deploy, and a user can complete coin making by self, so that the popularization cost is reduced. In addition, compared with the conventional automatic teller machine, the digital currency physical carrier has no currency attribute under the condition of incomplete initialization and recharging, so that the significance of the cash stealing behavior in the automatic teller machine is lost.
In one possible implementation, the automated teller machine may operate off-line. In the off-line state, the physical carrier of the digital currency can be delivered to the user after the ATM initializes the physical carrier of the digital currency. The initialization of the digital currency physical carrier refers to controlling the digital currency physical carrier to generate a key pair. In particular, the private key of the key pair is not readable in the digital currency physical carrier and the public key of the key pair is readable in the digital currency physical carrier.
The private key is unreadable in a physical carrier of the digital currency, namely, the private key is protected by hardware, if a high-security password chip is adopted, the generation of the private key, the encryption and decryption, signature verification and other calculation processes are all completed in the password chip, the private key is ensured not to leave the password chip, the backup and recovery of the private key are avoided, and the anti-counterfeiting and non-replicability of the currency are realized.
It should be noted that the wallet address in the blockchain account is generated according to the public key, and therefore, the public key in the digital currency physical carrier is readable to implement operations such as balance inquiry or charging of the digital currency physical carrier by the automatic teller machine. And based on the private key signature, the automatic teller machine can carry out authenticity verification on the digital currency physical carrier, initiate online currency transaction in the blockchain network, and transfer the balance of the digital currency physical carrier to other blockchain accounts.
In another possible implementation, in the case that the atm is in normal communication with the blockchain network, the host module 101 is further configured to add the digital money in the account wallet of the blockchain network to the public key address of the initialized physical carrier of the digital money.
In particular, the account wallet may be a wallet input by the user and successfully authenticated, so that the atm may initialize the physical carrier of digital currency and pay the value to the user after the physical carrier of digital currency is charged. Thereby realizing the conversion of the digital currency in the user's own blockchain account into the currency of the entity (i.e. the physical carrier of the digital currency).
Optionally, as shown in fig. 2, the automated teller machine further comprises a printing module 105 for printing a denomination onto the initialized physical carrier of digital currency.
In an implementation, the automatic teller machine may charge the initialized digital currency physical carrier with the amount of money selected by the user based on the operation of the user, and print a denomination consistent with the charged amount of money on the surface of the digital currency physical carrier, so as to ensure that the denomination size seen by the user is consistent with the actual amount of money in the blockchain account of the digital currency physical carrier. Optionally, the automatic teller machine may further print, according to actual requirements, an issue time, a serial number, product information, and the like corresponding to the physical carrier of the digital currency, which is not limited by the present disclosure.
In another possible implementation, the physical carrier of digital currency already has a denomination identifier, which can be made using printing, stamping, casting, etc., before it is placed in the automated teller machine. Therefore, the automatic teller machine can be used for placing various digital currency physical carriers with different denominations in a classified mode, providing appointed different denomination sizes for a user to select and manufacture, and selecting the digital currency physical carrier with the corresponding denomination size to finish initialization and discharge to the user after recharging based on the operation of the user.
Optionally, the currency throughput module 104 is further configured to swallow a user-placed physical carrier of digital currency; the host module 101 is also used to query the balance or cash out the physical carrier of digital currency swallowed by the currency throughput module.
For a digital currency physical carrier put in by a user, reading a public key of the digital currency physical carrier, inquiring balance in a corresponding wallet address from a block chain network, and charging the wallet address. In addition, the presentation operation of the digital currency physical carrier means that on the basis of the private key signature of the digital currency physical carrier, online transaction can be initiated, and the digital currency in the wallet address corresponding to the digital currency physical carrier is transferred to wallets of other accounts, so that the digital currency of the user is converted into virtualization from materialization.
Optionally, the host module 101 is further configured to obtain identity information of a user, where the identity information includes account information of the user in the blockchain network, and perform identity authentication and/or charging for the user according to the identity information.
Since the conversion between digital currency materialization and virtualization involves the transfer of digital currency in a user blockchain account, the automated teller machine may prompt the user to first enter identity information to complete authentication of the user, determine the user's operating rights, and the authenticity of the account before the user performs the relevant operations. In addition, the ATM can also collect certain procedure fees, particularly directly collect the fees from the address of the blockchain wallet of the user, and also collect the legal coins.
It should be noted that, in an implementation, the automatic teller machine may further include other components, such as the human-machine interaction module 106, the display module 107, and the like shown in fig. 2. In addition, the delivery and swallowing of the physical carrier of the digital currency can be realized by adopting a mechanical structure. And for different types of digital currencies, the automatic teller machine can provide corresponding different types of physical carriers so as to realize access of multiple digital currencies and physical virtual conversion functions. The present disclosure is not limited thereto.
The disclosed embodiments also provide a method for an automatic teller machine to dispense a physical carrier of digital currency, which may be applied to the automatic teller machine shown in fig. 1, for example, as shown in fig. 3, the method including:
s301, initializing a digital currency physical carrier placed in the automatic teller machine.
Specifically, a key chip in the digital currency physical carrier may be instructed to generate a public key and a private key by sending a key pair generation instruction to the digital currency physical carrier. In one possible implementation, the automated teller machine is communicatively connected to a back-end server of the issuer, to which authentication may be requested before sending the key generation instruction to the physical carrier of digital currency.
S302, the initialized physical digital currency carrier is delivered to the user.
For example, the automatic teller machine may obtain relevant information input by a user operation in an offline state, where the relevant information includes, for example, a denomination size, and when a money making instruction issued by the user is received, select a blank digital currency physical carrier according to the denomination size to initialize, and deliver the initialized digital currency physical carrier to the user.
In addition, under the condition that the ATM is communicated with the back-end server and the blockchain network, the ATM can acquire the identity information of the user, authenticate the user according to the identity information, recharge the digital currency in the blockchain wallet address included in the identity information into the public key address of the initialized digital currency physical carrier after the authentication is passed, and send the recharged digital currency physical carrier to the user, thereby completing the conversion from virtualization to materialization of the digital currency of the user.
For example, the flow of the method for initializing the physical carrier of digital currency by the automatic teller machine is shown in fig. 4, and comprises the following steps:
s401, the automatic teller machine sends a key generation request to a server, and the key generation request is used for the server to authenticate the automatic teller machine.
Wherein the server is specifically a service backend of the distribution structure. The server may authorize a designated automated teller machine to have the authority to control the generation of the key pair by the physical carrier of digital currency. Thus, when the server receives a key generation request sent by a certain automatic teller machine, the server needs to authenticate the automatic teller machine so as to determine whether the automatic teller machine has corresponding authority.
S402, the server receives the key generation request and authenticates the ATM according to the key generation request.
And S403, the server sends a key generation response to the ATM, wherein the key generation response comprises an authentication result.
And S404, the automatic teller machine receives the key generation response sent by the server.
S405, if the authentication result shows that the automatic teller machine has the authority of controlling the digital currency physical carrier to generate the key pair, the automatic teller machine sends a key pair generation instruction to the digital currency physical carrier.
The key generation response also includes the related information of the account registered in the blockchain network, the related information is used for generating the key pair and the wallet address, for example, the related information may include the mnemonic words in the blockchain wallet AToken. And a key pair generation instruction sent by the automatic teller machine to the digital currency physical carrier carries the relevant information and is used for triggering the digital currency physical carrier to generate a public key and a private key.
And S406, the physical carrier of the digital currency receives the key pair generation instruction sent by the automatic teller machine.
And S407, the physical carrier of the digital currency generates a corresponding public key and a corresponding private key according to the key pair generation instruction.
S408, storing the newly generated public key and the private key.
For the digital currency physical carrier that newly generated the key pair, the balance of its account wallet is 0. Therefore, the automatic teller machine can read the public key address and recharge the corresponding address, which is shown in the following steps S409 to S413.
And S409, the automatic teller machine sends a public key reading instruction to the physical digital currency carrier.
And S410, the physical carrier of the digital currency receives a public key reading instruction initiated by the automatic teller machine.
And S411, the physical carrier of the digital currency returns the stored public key to the automatic teller machine according to the public key reading instruction.
It will be appreciated by those skilled in the art that the wallet address for the blockchain based digital currency is typically generated as a public key, and may be directly a public key. For convenience of description, the public key is directly used by the disclosed embodiment to represent the wallet address, and according to a specific application scenario, the digital currency physical carrier may simultaneously store the private key, the public key, and an address generated based on the public key, where the private key is unreadable and the public key and the address are readable.
And S412, the automatic teller machine receives the public key returned by the physical carrier of the digital currency.
And S413, the automatic teller machine charges the wallet of the blockchain account corresponding to the digital currency physical carrier according to the public key.
Wherein, under the condition that the physical carrier of the digital currency has the denomination identification, the charged digital currency is consistent with the denomination size. In another possible implementation mode, the user can also recharge the money according to the amount input by the user, and after recharging is completed, the physical carrier of the digital currency is printed with a denomination identifier consistent with the recharging amount.
Further, after the initialization and the recharge are completed, step S414 is performed.
And S414, delivering the charged digital currency physical carrier to the user.
It is noted that for simplicity of description, the above method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present disclosure is not limited by the order of acts or combination of acts described. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily required for the present disclosure, for example, the automatic teller machine may not require an authorization request from the back-end server before initializing the physical carrier of digital currency, and may be set according to actual requirements.
In addition, in the above flow, the atm may also collect a fee from the user's blockchain wallet address as a commission for creating money, which is not limited by the present disclosure, and for example, the atm may prompt the user to insert a legal money and collect the commission.
Optionally, the method further comprises: swallowing a user-placed physical carrier of digital currency; and inquiring the balance of the digital currency physical carrier from the block chain network. Specifically, the atm can read a public key in a physical carrier of digital currency placed by a user and query the balance in the corresponding wallet address from the blockchain network based on the public key.
Optionally, the method further comprises: swallowing a user-placed physical carrier of digital currency; acquiring a target wallet address input by a user; a transaction is initiated to a blockchain network to transfer digital currency in the physical carrier of digital currency to the target wallet address based on the target wallet address. In particular, the automated teller machine may send a transaction request to a physical carrier of digital currency, the digital currency private-key signing the transaction request, the automated teller machine broadcasting the private-key signed transaction request into a blockchain network to complete an online transaction.
For example, the flow of the method for cashing out the physical carrier of the digital currency by the automatic teller machine is shown in fig. 5, and comprises the following steps:
s501, the automatic teller machine sends a transaction request to the digital currency physical carrier.
Wherein the transaction request includes monetary transaction information, such as a payee address. The money transaction information is created by the automated teller machine based on a user operation.
And S502, the digital currency physical carrier receives the transaction request.
And S503, the digital currency physical carrier signs the currency transaction information carried by the transaction request according to the stored private key of the block chain account.
S504, the digital currency physical carrier changes the use state of the private key into the used state.
The use state information of the private key recorded by the digital currency physical carrier is readable and is used for the automatic teller machine to judge whether the currency of the digital currency physical carrier is safe and effective or not by combining the validity of the private key and the balance.
And S505, the physical carrier of the digital currency sends a transaction response to the automatic teller machine.
The transaction response includes the private key signed currency transaction information.
And S506, the automatic teller machine receives the transaction response.
And S507, the automatic teller machine initiates a currency transaction to the blockchain network according to the transaction response.
It should be noted that the process of the atm initiating the money transaction to the blockchain network is the same as the process of the transaction on the existing blockchain network, and the details are not repeated here.
Moreover, for convenience of understanding, the above description is performed in a manner of adopting method steps, however, it should be understood by those skilled in the art that the technical solution provided in the embodiment of the present disclosure is not limited by the step sequence, for example, the step of S504 may be performed after the step of S505. Also, the method shown in fig. 5 is only one possible implementation and other alternatives are possible. For example, the currency transaction information may be created from a digital currency physical carrier and a transaction request sent to an automated teller machine after a private key signature is performed on the created currency transaction information.
It is worth mentioning that the automated teller machine can also verify the currency validity of the physical carrier of digital currency during the recharge and withdrawal process. For example, the digital currency physical carrier records the use state of the private key, and particularly, the digital currency physical carrier changes the use state of the private key into used after signing the currency transaction by using the private key. Therefore, the automatic teller machine can confirm whether the digital currency of the digital currency physical carrier is presented or not based on the use state information of the private key, and can determine that the digital currency of the digital currency physical carrier is being traded or is finished if the use state information of the private key indicates that the private key is used, and at the moment, the automatic teller machine further needs to inquire balance from the block chain network through the public key address.
The following table 1 provides the correspondence between the combination of the validity of the private key, the use status of the private key, and the balance of the account and the status of the physical carrier of the digital currency:
TABLE 1
Wherein, in a safe state, the digital currency physical carrier can be used as entity currency to carry out off-line transaction; in an issuing error state, the digital currency physical carrier is recovered by the issuing authority; in an unsecured state, the digital currency physical carrier may have signed the transaction with the private key, but the transaction has not yet been confirmed, wherein the transaction has not been broadcast to, or accepted by, the blockchain network may result in the transaction being in an unconfirmed state in which the digital currency physical carrier is not available for offline transactions; the physical carrier of the proposed digital currency can be charged by an issuing organization or a belonging user; counterfeit physical carriers of digital currency can be destroyed. In particular implementations, only the currency of the physical carrier of digital currency in the secure state may be considered valid, i.e., transactable.
In addition, in order to prevent the issuing manufacturer of the digital currency physical carrier from being counterfeited, the hardware legitimacy of the digital currency physical carrier can be verified in the processes of recharging and cashing. In a possible implementation manner of the embodiment of the present disclosure, a manufacturer certificate may also be stored in the digital currency physical carrier, where the manufacturer certificate is used to verify the hardware validity of the digital currency physical carrier, and the manufacturer certificate is obtained by signing a public key of a device key pair generated by the digital currency physical carrier with a private key of a production batch key pair of a manufacturer.
Specifically, before the digital currency physical carrier leaves the factory, the key pair of the device can be generated, and for different production batches, the key pair of the production can be generated by the manufacturer device. In this way, the public key of the read digital currency physical carrier is signed by using the private key in the production batch key pair, and the manufacturer certificate can be obtained. Further, the vendor device may write the public key of the production batch key pair into the blockchain. In this way, after the physical digital currency carrier leaves the factory for circulation, the automatic teller machine can read the manufacturer certificate in the physical digital currency carrier and the public key of the manufacturer in the block chain, and perform signature authentication on the manufacturer certificate by using the public key, if the authentication passes, the physical digital currency carrier is determined to be issued by the manufacturer, and if the authentication fails, the physical digital currency carrier is determined to be counterfeit.
By adopting the method, the automatic teller machine can make the digital currency owned by the user into the entity currency (namely the physical carrier of the digital currency) to be supplied to the user for transaction circulation. Furthermore, the automatic teller machine can also recharge and cash the existing digital currency physical carrier of the user, and flexibly realizes the self-service conversion of the materialization and the virtualization of the digital currency.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
- An automated teller machine comprising: the system comprises a host module, a first communication module, a second communication module and a currency handling module, wherein the first communication module, the second communication module and the currency handling module are respectively connected with the host module;wherein the first communication module is used for communicating with a blockchain network;the second communication module is used for communicating with a digital currency physical carrier;the currency handling module is used for delivering the digital currency physical carrier placed in the automatic teller machine to a user;the host module is used for initializing a digital currency physical carrier placed in the automatic teller machine; and controlling the currency handling module to deliver the initialized digital currency physical carrier to the user.
- The automated teller machine of claim 1 where the host module is further configured to add the digital currency in the account wallet of the blockchain network to the public key address of the initialized physical carrier of the digital currency.
- The automated teller machine of claim 2 further comprising a printing module for printing a denomination onto the initialized physical carrier of digital currency.
- The automated teller machine of any of claims 1 to 3 wherein the currency throughput module is further configured to swallow a user-placed physical carrier of digital currency;the host module is also used for inquiring balance or cashing operation of the digital currency physical carrier swallowed by the currency handling module.
- The automated teller machine according to any of claims 1 to 3, wherein the host module is further configured to obtain identity information of a user, the identity information includes account information of the user in the blockchain network, and the user is authenticated and/or collected for fees according to the identity information.
- A method of dispensing a physical carrier of digital currency at an automated teller machine comprising:initializing a physical carrier of digital currency placed in the automatic teller machine;and delivering the initialized digital currency physical carrier to a user.
- The method of claim 6, further comprising:acquiring the identity information of the user, and authenticating the user according to the identity information;and after the authentication is passed, recharging the digital currency in the address of the blockchain wallet included in the identity information into the public key address of the initialized physical carrier of the digital currency.
- The method of claim 7, further comprising:a fee is charged from the user's blockchain wallet address.
- The method according to any one of claims 6 to 8, further comprising:swallowing a user-placed physical carrier of digital currency;and inquiring the balance of the digital currency physical carrier from the block chain network.
- The method according to any one of claims 6 to 8, further comprising:swallowing a user-placed physical carrier of digital currency;acquiring a target wallet address input by a user;initiating a transaction to a blockchain network to transfer digital currency in the physical carrier of digital currency to the target wallet address based on the target wallet address.
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| CN114267135A (en) * | 2021-12-24 | 2022-04-01 | 交通银行股份有限公司 | Financial self-service machine supporting digital currency to carry out cash withdrawal |
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| CN107230074A (en) * | 2016-03-25 | 2017-10-03 | 中国人民银行印制科学技术研究所 | The method and system of digital cash is stored in digital cash chip card |
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| CN114267135A (en) * | 2021-12-24 | 2022-04-01 | 交通银行股份有限公司 | Financial self-service machine supporting digital currency to carry out cash withdrawal |
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