CN110619567B - Method and system for recovering limit of digital currency - Google Patents
Method and system for recovering limit of digital currency Download PDFInfo
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Abstract
The invention discloses a method and a system for recovering the limit of digital currency, and relates to the technical field of computers. One embodiment of the method comprises: a central management system comprising: the certificate processing module and the transmission module; the certificate processing module is used for receiving a recovery certificate sent by the digital currency putting system, processing the recovery certificate and sending a processing result to the transmission module; wherein the recovery voucher indicates the amount to be recovered; and the transmission module is used for sending the processing result to the digital currency putting system. This embodiment can improve the recycling security of digital money.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a method and a system for recovering the quota of digital currency.
Background
In the era of digital economy, digital currency is increasingly concerned by banks and consumers in various countries due to its characteristics of low cost, convenience and the like.
Currently, the money issuing rules and the collection rules are generally set by a central management system (e.g. a central bank), and the central management system can authorize a conditional money releasing organization to collect money amount on the premise of ensuring that the money policy operation of the central management system is not affected.
And the money throwing mechanism may have the behavior of violating the recovery rule due to benefit driving, which may result in lower safety of the credit recovery.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a system for credit recovery of digital money, which can provide a safe and convenient application environment for credit recovery, thereby improving the security of credit recovery.
To achieve the above object, according to a first aspect of embodiments of the present invention, there is provided a digital money dispensing system including: the system comprises a recovery module and a certificate forwarding module; wherein, the first and the second end of the pipe are connected with each other,
the recovery module is used for sending a credit recovery request to a credit control system, wherein the credit recovery request carries a credit control bit to be recovered; carrying out limit recovery according to a processing result sent by the voucher forwarding module;
the voucher forwarding module is used for receiving a recovery voucher returned after the credit control system verifies the credit control bit, sending the recovery voucher to a central management system, receiving the processing result returned by the central management system according to the recovery voucher, and sending the processing result to the recovery module.
According to a second aspect of the embodiments of the present invention, there is provided a credit recovery system for digital money, including: the digital currency delivery system, the central management system and the credit control system provided by the first aspect; wherein the content of the first and second substances,
the credit control system is used for receiving a credit recovery request sent by the digital currency putting system and verifying a credit control bit to be recovered carried by the credit recovery request; when the verification is passed, generating a recovery certificate according to the limit control position, and sending the recovery certificate to the digital currency putting system;
the central management system is used for receiving the recovery voucher sent by the digital currency putting system, processing the recovery voucher and sending a processing result to the digital currency putting system; wherein the recovery voucher indicates a credit to be recovered.
Optionally, the credit control system checks integrity to verify that the credit control bit is in the correct format.
Optionally, the credit control system is configured to encrypt the credit control bit by using a first private key and a first signature algorithm, so as to generate the recycling certificate.
Optionally, the central management system is configured to decrypt the recycling certificate by using a first public key corresponding to the first private key, and determine the to-be-recycled amount; and updating the authorization quota of the digital currency putting system according to the to-be-recovered quota, and generating the processing result.
According to a third aspect of the embodiments of the present invention, there is provided a method for collecting a credit of digital money, which is applied to a digital money depositing system, including:
sending an amount recycling request to an amount control system, wherein the amount recycling request carries an amount control bit to be recycled;
receiving a recovery certificate returned after the limit control system verifies the limit control position;
sending the recovery certificate to a central management system;
receiving a processing result returned by the central management system according to the recovery certificate;
and carrying out limit recovery according to the processing result.
According to a fourth aspect of the embodiments of the present invention, there is provided a method for collecting a digital currency, which is applied to a system for collecting a digital currency, including:
the digital currency putting system sends a credit recovery request to a credit control system, wherein the credit recovery request carries a credit control bit to be recovered;
the method comprises the steps that a credit control system receives a credit recovery request sent by a digital currency putting system and verifies a credit control position to be recovered carried by the credit recovery request;
when the verification is passed, the amount control system generates a recovery certificate according to the amount control position, and sends the recovery certificate to the digital currency putting system;
the digital currency putting system receives a recovery certificate returned by the limit control system according to the limit control position and sends the recovery certificate to a central management system;
the central management system receives the recovery voucher sent by the digital currency putting system, processes the recovery voucher and sends a processing result to the digital currency putting system; wherein the recovery voucher indicates the amount to be recovered;
and the digital currency putting system receives a processing result returned by the central management system according to the recovery certificate and recovers the quota according to the processing result.
Optionally, the credit control system checks integrity to verify that the credit control bit is in the correct format.
Optionally, the credit control system generates a recycling certificate according to the credit control bit, including: and encrypting the limit control bit by using a first private key and a first signature algorithm to generate the recycling certificate.
Optionally, the processing the recovery voucher includes:
decrypting the recovery certificate by using a first public key corresponding to the first private key so as to determine the limit to be recovered;
updating the authorization amount of the digital currency putting system according to the amount to be recovered;
and generating the processing result.
According to a fifth aspect of the embodiments of the present invention, there is provided a server including:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of any one of the third or fourth aspects as described above.
According to a sixth aspect of embodiments of the present invention, there is provided a computer readable medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the method according to any of the third or fourth aspects above.
One embodiment of the above invention has the following advantages or benefits: when the digital currency putting system needs to carry out the credit recovery, a credit recovery request carrying a credit control bit to be recovered needs to be sent to the credit control system, and when the credit control system determines that the credit control bit carried in the recovery request passes the verification, a recovery certificate is generated according to the credit control bit and is sent to the digital currency putting system. And then the digital currency putting system further forwards the recovery certificate to the central management system, and when the central management system returns a processing result aiming at the recovery certificate to the digital currency putting system, the digital currency putting system can recover the amount of the digital currency to be recovered according to the processing result. Therefore, the limit control position to be recovered is checked through the limit control system and corresponding recovery certificates are generated, the central management system further processes the recovery certificates, the limit recovery process is uniformly managed and controlled through the central management system, the limit recovery of the currency putting system under the condition of violating the recovery rules is avoided, and the safety of the limit recovery is improved.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
fig. 1 is a schematic structural diagram of a digital currency delivery system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a credit control system according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a central management system according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a method for recycling the amount of digital money according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the construction of a credit recovery system for digital money according to an embodiment of the present invention;
FIG. 6 is an exemplary system architecture diagram in which embodiments of the present invention may be employed;
fig. 7 is a schematic block diagram of a computer system suitable for use in implementing a terminal device or server of an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
As shown in fig. 1, an embodiment of the present invention provides a digital money delivery system 100, including: a recovery module 101 and a credential forwarding module 102; wherein the content of the first and second substances,
the recovery module 101 is configured to send an amount recovery request to the amount control system 200, where the amount recovery request carries an amount control bit to be recovered; carrying out limit recovery according to the processing result sent by the certificate forwarding module 102;
the credential forwarding module 102 is configured to receive a recovery credential returned by the amount control system 200 according to the amount control bit, send the recovery credential to the central management system 300, receive the processing result returned by the central management system 300 according to the recovery credential, and send the processing result to the recovery module 101.
The digital currency putting system can initiate a credit recovery request according to the actual requirement or the currency putting plan, when the digital currency putting system initiates the credit recovery request, the credit recovery request carries a credit control bit to be recovered, namely, the credit control bit to be recovered is sent to the credit control system, when the digital currency putting system receives a recovery certificate returned by the credit control system according to the credit control bit, the recovery certificate is sent to the central management system, and the recovery certificate is recorded. When the digital currency putting system further receives the processing result aiming at the recovery voucher sent by the central management system, the digital currency putting system can recover the amount of the digital currency to be recovered according to the processing result of the central management system. From this, treat the limit control position of retrieving and carry out the check-up and generate corresponding recovery voucher through limit control system, and central management system further handles recovery voucher for the limit recovery process carries out unified management and control via central management system, thereby has avoided the currency input system to retrieve the limit under the condition of violating the recovery rule, thereby has improved the security that the limit was retrieved.
As shown in FIG. 2, an embodiment of the invention provides a credit control system 200, including: a verification module 201 and a credential generation module 202; wherein the content of the first and second substances,
the verification module 201 is configured to receive a credit line recovery request sent by the digital currency delivery system 100, verify a credit line control bit to be recovered carried in the credit line recovery request, and send the credit line control bit to the voucher generation module 202 when the credit line control bit passes the verification;
the voucher generating module 202 is configured to generate a recycling voucher according to the amount control bit, and send the recycling voucher to the digital currency putting system 100.
When the amount control system 200 receives the amount recovery request sent by the digital currency putting system 100, the amount control position to be recovered carried by the amount recovery request is verified, and when the verification is passed, a recovery certificate is generated according to the amount control position, the recovery certificate is returned to the digital currency putting system, and meanwhile, the recovery certificate is recorded. Therefore, the digital currency putting system can forward the recovery certificate to the central management system and receive the processing result of the central management system aiming at the recovery certificate so as to realize the credit limit recovery of the digital currency putting system. Therefore, the central management system and the limit control system can control the limit recovery process of the digital currency putting system, and the safety of limit recovery is improved.
Optionally, the credential generating module 202 is configured to encrypt the credit control bit by using a first private key and a first signature algorithm, so as to generate the recycling credential.
The credit control system 200 is a system in which the central management system 300 distributes the digital money generating system 100 in a unified manner. Therefore, the first private key corresponding to the first public key stored in the central management system is stored in the certificate generation module in the credit control system, and when the credit generation module receives the credit control bit to be recovered, which is sent by the digital currency putting system, the credit control bit to be recovered can be encrypted by using the first private key corresponding to the first public key to generate the recovery certificate. Therefore, after the digital currency is put in and the recovery certificate is forwarded to the central management system, the central management system can decrypt the recovery certificate by using the first public key, and the central management system can generate a processing result aiming at the recovery certificate.
In addition, the check is an integrity check used for checking whether the format of the quota control bit is correct or not. For example, the format of the credit control bit may be checked by using a hash algorithm, a Checksum (Checksum) or a Cyclic Redundancy Check (CRC), so as to prevent the credit control bit from being maliciously tampered during transmission, and further improve the security of credit recovery.
As shown in fig. 3, an embodiment of the present invention provides a central management system 300, including: a credential processing module 301 and a transmission module 302; wherein the content of the first and second substances,
the voucher processing module 301 is configured to receive a recycling voucher sent by the digital currency delivery system 100, process the recycling voucher, and send a processing result to the transmission module 302; wherein the recovery voucher indicates the amount to be recovered;
the transmission module 302 is configured to send the processing result to the digital currency delivery system 100.
When the central management system receives the recovery voucher sent by the digital currency putting system 100, the voucher processing module of the central management system records the recovery voucher, processes the recovery voucher, generates a processing result aiming at the recovery voucher, and sends the processing result to the digital currency putting system through the transmission module of the central management system, so that the digital currency putting system can recover the quota according to the processing result, thereby realizing the recovery of the digital currency. Therefore, the recovery process of the digital currency is uniformly managed and controlled through the central management system, so that the condition that the currency putting system carries out limit recovery under the condition of illegal recovery rules is avoided, and the safety of limit recovery is improved.
In an optional embodiment, the recycling certificate received by the central management system 100 is encrypted by a first key, and the certificate processing module 301 is configured to decrypt the recycling certificate by using a first public key, determine the credit to be recycled, update the authorized credit of the digital currency putting system according to the credit to be recycled, and generate the processing result.
The central management system can record and control the authorized amount of the digital currency putting system. For example, if the digital currency delivery system applies for an authorized amount of a from the central management system as a, the digital currency delivery system can deliver digital currency with a quantity not exceeding a according to the business requirements of the digital currency delivery system, and during the circulation and transaction of the digital currency, the digital currency delivery system recovers digital currency with a quantity not less than B. Then, the digital currency putting system prepares to recycle the quota with the quantity B according to the business requirement of the digital currency putting system. At this time, the digital currency putting system can send a credit recovery request to the credit control system, and the credit recovery request carries a credit control bit to be recovered with the credit B. Then, the credit control system can generate a recycling certificate by using the credit recycling method provided by any embodiment of the invention, when the digital currency putting system receives the processing result returned by the central management system according to the recycling certificate, namely, the central management system indicates that the digital currency putting system allows the digital currency putting system to recycle the authorized credit with the quantity of B, the digital currency putting system updates the authorized credit of the digital currency putting system to A-B according to the processing result, and the central management system also records the authorized credit of the digital currency putting system to A-B. It can be understood that the processing result can be understood as the permission of the central management system for carrying out the quota recovery on the digital currency putting system, and the digital currency putting system updates the self authorized quota according to the processing result, thereby realizing the management and control of the central management system on the quota recovery process.
As shown in fig. 4, an embodiment of the present invention provides a method for recovering a credit of digital money, which is applicable to a digital money delivery system, and may include the following steps:
step S401: sending an amount recycling request to an amount control system, wherein the amount recycling request carries an amount control position amount recycling request to be recycled;
step S403: receiving a recovery certificate returned by the limit control system according to the limit control position;
step S405: sending the recovery certificate to a central management system;
step S407: receiving a processing result returned by the central management system according to the recovery certificate;
step S409: and carrying out quota recovery according to the processing result.
Referring to fig. 4, an embodiment of the invention provides a method for recycling a credit of digital money, which can be applied to a credit control system, and includes the following steps:
step S402: receiving a credit recovery request sent by a digital currency putting system;
step S404: checking the limit control position to be recovered carried by the limit recovery request, and generating a recovery certificate according to the limit control position when the limit control position passes the check;
step S406: and sending the recovery voucher to a digital currency putting system.
Optionally, the check is an integrity check for checking whether the format of the credit control bit is correct.
Optionally, the generating a recycling certificate according to the credit control bit includes: and encrypting the limit control bit by using a first private key and a first signature algorithm to generate the recovery certificate.
With further reference to fig. 4, an embodiment of the present invention further provides a method for recovering a credit of digital currency, where the method is applicable to a central management system, and the method may include the following steps:
step S408: receiving a recovery certificate sent by a digital currency putting system; wherein the recovery voucher indicates a credit to be recovered;
step S410: processing the recovery voucher;
step S412: and sending the processing result to the digital currency putting system.
Optionally, if the received recycling certificate is encrypted by the first key, a specific implementation manner of step S402 may include: decrypting the recovery certificate by using a first public key to determine the limit to be recovered; and updating the authorization quota of the digital currency putting system according to the to-be-recovered quota, and generating the processing result.
According to the method for recovering the credit of the digital currency, disclosed by the embodiment of the invention, when the digital currency putting system needs to recover the credit, a credit recovery request carrying a credit control bit to be recovered needs to be sent to the credit control system, and when the credit control system determines that the credit control bit carried in the recovery request passes verification, a recovery certificate is generated according to the credit control bit and is sent to the digital currency putting system. And then the digital currency putting system further forwards the recovery certificate to the central management system, and when the central management system returns a processing result aiming at the recovery certificate to the digital currency putting system, the digital currency putting system can recover the amount of the digital currency to be recovered according to the processing result. Therefore, the limit control position to be recovered is checked through the limit control system and corresponding recovery certificates are generated, the central management system further processes the recovery certificates, the limit recovery process is uniformly managed and controlled through the central management system, the limit recovery of the currency putting system under the condition of violating the recovery rules is avoided, and the safety of the limit recovery is improved.
As shown in FIG. 5, an embodiment of the present invention provides a system 500 for recycling credit of digital currency, including: the central management system 300 according to any of the above embodiments, the digital money delivery system 100 according to any of the above embodiments, and the credit line control system 200 according to any of the above embodiments.
An embodiment of the present invention further provides a server, including: one or more processors; storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out a method according to any one of the embodiments described above.
An embodiment of the present invention further provides a computer-readable medium, on which a computer program is stored, where the computer program is configured to, when executed by a processor, implement a method according to any one of the above embodiments.
Fig. 6 illustrates an exemplary system architecture 600 of a digital currency recycling method or a digital currency delivery system or central management system to which embodiments of the present invention may be applied.
As shown in fig. 6, the system architecture 600 may include terminal devices 601, 602, 603, a network 604, and a server 605. The network 604 serves to provide a medium for communication links between the terminal devices 601, 602, 603 and the server 605. Network 604 may include various types of connections, such as wire, wireless communication links, or fiber optic cables, to name a few.
A user may use the terminal devices 601, 602, 603 to interact with the server 605 via the network 604 to receive or send messages or the like. Various communication client applications, such as shopping applications, web browser applications, search applications, instant messaging tools, mailbox clients, social platform software, and the like, may be installed on the terminal devices 601, 602, and 603.
The terminal devices 601, 602, 603 may be various electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, laptop portable computers, desktop computers, and the like.
The server 605 may be a server that provides various services, such as a background management server that supports shopping websites browsed by users using the terminal devices 601, 602, and 603. The background management server may analyze and perform other processing on the received data such as the product information query request, and feed back a processing result (e.g., target push information and product information) to the terminal device.
It should be noted that the method for recycling digital money provided by the embodiment of the present invention is generally performed by the server 605, and accordingly, a digital money delivery system or a central management system is generally disposed in the server 605.
It should be understood that the number of terminal devices, networks, and servers in fig. 6 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for an implementation.
Referring now to FIG. 7, shown is a block diagram of a computer system 700 suitable for use with a terminal device implementing an embodiment of the present invention. The terminal device shown in fig. 7 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 7, the computer system 700 includes a Central Processing Unit (CPU) 701, which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 702 or a program loaded from a storage section 708 into a Random Access Memory (RAM) 703. In the RAM 703, various programs and data necessary for the operation of the system 700 are also stored. The CPU 701, the ROM 702, and the RAM 703 are connected to each other via a bus 704. An input/output (I/O) interface 705 is also connected to bus 704.
The following components are connected to the I/O interface 705: an input portion 706 including a keyboard, a mouse, and the like; an output section 707 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 708 including a hard disk and the like; and a communication section 709 including a network interface card such as a LAN card, a modem, or the like. The communication section 709 performs communication processing via a network such as the internet. A drive 710 is also connected to the I/O interface 705 as needed. A removable medium 711 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 710 as necessary, so that the computer program read out therefrom is mounted in the storage section 708 as necessary.
In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 709, and/or installed from the removable medium 711. The computer program performs the above-described functions defined in the system of the present invention when executed by the Central Processing Unit (CPU) 701.
It should be noted that the computer readable medium shown in the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The modules described in the embodiments of the present invention may be implemented by software or hardware. The described modules may also be provided in a processor, which may be described as: a processor includes a recycling module and a credential forwarding module. The names of the modules do not limit the modules themselves under certain conditions, and for example, the recycling module can also be described as a module for recycling the quota according to the processing result.
As another aspect, the present invention also provides a computer-readable medium that may be contained in the apparatus described in the above embodiments; or may be separate and not incorporated into the device. The computer readable medium carries one or more programs which, when executed by a device, cause the device to comprise: sending an amount recovery request to an amount control system, wherein the amount recovery request carries an amount control position to be recovered; receiving a recovery certificate returned by the limit control system according to the limit control position; sending the recovery certificate to a central management system; receiving a processing result returned by the central management system according to the recovery certificate; and carrying out limit recovery according to the processing result.
According to the technical scheme of the embodiment of the invention, when the digital currency putting system needs to recover the quota, a recovery request carrying the quota control position to be recovered needs to be sent to the quota control system, and when the quota control system determines that the quota control position carried in the recovery request passes the verification, a recovery certificate is generated according to the quota control position and is sent to the digital currency putting system. And then the digital currency putting system further forwards the recovery certificate to the central management system, and when the central management system returns a processing result aiming at the recovery certificate to the digital currency putting system, the digital currency putting system can recover the amount of the digital currency to be recovered according to the processing result. Therefore, the limit control position to be recovered is checked through the limit control system and corresponding recovery certificates are generated, the central management system further processes the recovery certificates, the limit recovery process is uniformly managed and controlled through the central management system, the limit recovery of the currency putting system under the condition of violating the recovery rules is avoided, and the safety of the limit recovery is improved.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A digital currency delivery system, comprising: the system comprises a recovery module and a certificate forwarding module; wherein the content of the first and second substances,
the recovery module is used for sending an amount recovery request to the amount control system, wherein the amount recovery request carries an amount control position to be recovered; carrying out limit recovery according to the processing result sent by the voucher forwarding module;
the voucher forwarding module is used for receiving a recovery voucher returned after the credit control system verifies the credit control position, sending the recovery voucher to a central management system, receiving the processing result returned by the central management system according to the recovery voucher, and sending the processing result to the recovery module.
2. A credit recovery system for digital money, comprising: the digital currency delivery system of claim 1, the central management system and the credit control system; wherein the content of the first and second substances,
the credit control system is used for receiving a credit recovery request sent by the digital currency putting system and verifying a credit control bit to be recovered carried by the credit recovery request; when the verification is passed, generating a recovery certificate according to the limit control position, and sending the recovery certificate to the digital currency putting system;
the central management system is used for receiving the recovery voucher sent by the digital currency putting system, processing the recovery voucher and sending a processing result to the digital currency putting system; wherein the recovery voucher indicates a credit to be recovered.
3. The credit recovery system of claim 2,
the verification of the limit control system is integrity verification which is used for verifying whether the format of the limit control bit is correct.
4. The credit recovery system of claim 2,
the credit control system is used for encrypting the credit control bit by using a first private key and a first signature algorithm to generate the recycling certificate.
5. The credit recovery system of claim 4, wherein,
the central management system is used for decrypting the recovery certificate by using a first public key corresponding to the first private key to determine the limit to be recovered; and updating the authorization quota of the digital currency putting system according to the to-be-recovered quota, and generating the processing result.
6. A method for recovering the amount of digital money is applied to a digital money putting system, and comprises the following steps:
sending an amount recovery request to an amount control system, wherein the amount recovery request carries an amount control position to be recovered;
receiving a recovery certificate returned after the limit control system verifies the limit control position;
sending the recovery certificate to a central management system;
receiving a processing result returned by the central management system according to the recovery certificate;
and carrying out limit recovery according to the processing result.
7. A method for recovering the credit of digital currency is characterized in that the credit recovery system applied to the digital currency comprises:
the digital currency putting system sends a credit recovery request to a credit control system, wherein the credit recovery request carries a credit control bit to be recovered;
the method comprises the steps that a credit control system receives a credit recovery request sent by a digital currency putting system and verifies a credit control position to be recovered carried by the credit recovery request;
when the verification is passed, the limit control system generates a recovery certificate according to the limit control position, and sends the recovery certificate to the digital currency putting system;
the digital currency putting system receives a recovery certificate returned by the limit control system according to the limit control position and sends the recovery certificate to a central management system;
the central management system receives the recovery voucher sent by the digital currency putting system, processes the recovery voucher and sends a processing result to the digital currency putting system; wherein the recovery voucher indicates a credit to be recovered;
and the digital currency putting system receives a processing result returned by the central management system according to the recovery certificate and recovers the quota according to the processing result.
8. The method of claim 7,
the verification of the credit control system is integrity verification used for verifying whether the format of the credit control bit is correct.
9. The method of claim 7, wherein the credit control system generates a recycling certificate according to the credit control bit, comprising:
and encrypting the limit control bit by using a first private key and a first signature algorithm to generate the recovery certificate.
10. The method of claim 9, wherein the processing the recovery voucher comprises:
decrypting the recovery certificate by using a first public key corresponding to the first private key so as to determine the limit to be recovered;
updating the authorization amount of the digital currency putting system according to the amount to be recovered;
and generating the processing result.
11. A server, comprising:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 6-10.
12. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 6-10.
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| CN107341727B (en) * | 2017-06-26 | 2021-07-27 | 中国人民银行数字货币研究所 | Digital currency recycling method and system |
| CN108805574B (en) * | 2018-05-19 | 2021-01-26 | 深圳市图灵奇点智能科技有限公司 | Transaction method and system based on privacy protection |
| CN109191123B (en) * | 2018-08-10 | 2022-08-12 | 中国人民银行数字货币研究所 | Digital currency agency issuing limit control system and method |
| CN109493016B (en) * | 2018-10-24 | 2022-09-16 | 中国人民银行数字货币研究所 | Offline payment method, terminal and agent releasing equipment based on digital currency |
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