CN110660178A - ATM password system - Google Patents
ATM password system Download PDFInfo
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- CN110660178A CN110660178A CN201910917093.7A CN201910917093A CN110660178A CN 110660178 A CN110660178 A CN 110660178A CN 201910917093 A CN201910917093 A CN 201910917093A CN 110660178 A CN110660178 A CN 110660178A
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- G—PHYSICS
- 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
- G07F19/20—Automatic teller machines [ATMs]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/45—Structures or tools for the administration of authentication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
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- G—PHYSICS
- 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
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/205—Housing aspects of ATMs
- G07F19/2055—Anti-skimming aspects at ATMs
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- G—PHYSICS
- 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
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/206—Software aspects at ATMs
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- Accounting & Taxation (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
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Abstract
The invention provides an ATM password system. The system comprises: the system comprises a processing module, a checking module, a propaganda module and a display module; after receiving the transaction request, the processing module calls at least one password element to be randomly arranged to generate a password element combination, sends the password element combination to the display module to be displayed, and sends the password element position information to the verification module; the display module sends the received customer input password information to the verification module; the verification module generates a verification result according to the password element position information and the password information input by the client; if the verification result is correct, the processing module acquires customer information sent by the bank system, generates a customer portrait by using the customer information and sends the customer portrait to the propaganda module; and the propaganda module determines personalized recommended content according to the client portrait and sends the personalized recommended content to the display module for display. The invention flexibly selects the types of the password elements, changes the mode of fixing the digital positions, enhances the password security, pushes personalized products and enriches the functions.
Description
Technical Field
The invention relates to the technical field of ATM password, in particular to an ATM password system.
Background
At present, the ATM of the bank still uses the traditional metal password keyboard, the temperature of the keyboard can change after the password is pressed by fingers, if a photo is taken by a heat induction camera immediately after the transaction is finished, the password can be obtained by observing the color depth of the photo. And the password keyboard only provides 0-9 ten digits, and a client needs to set 6 digit passwords for carrying out operations such as deposit and withdrawal, account transfer, inquiry and the like, and the digit positions are fixed, so that the password security is poor. In addition, the protective cover is additionally arranged on the password keyboard, so that the attractiveness is influenced, and the traditional metal password keyboard is single in function and cannot be pushed to propagate products.
Disclosure of Invention
In order to solve the above problem, an embodiment of the present invention provides an ATM cryptosystem, including: the system comprises a processing module, a checking module, a propaganda module and a display module;
after receiving a transaction request, the processing module calls at least one password element and randomly arranges the password elements to generate a corresponding password element combination, sends the password element combination to the display module for display, and sends password element position information of the password element combination to the verification module;
the display module displays the password element combination and sends the received password information input by the client to the verification module;
the verification module compares the password element position information and the password input information of the client with a password inquiry result sent by a bank system to generate a verification result;
if the verification result is correct, the processing module acquires client information sent by a bank system, generates a client portrait by using the client information, and sends the client portrait to the propaganda module;
and the propaganda module determines personalized recommended content according to the client portrait and sends the personalized recommended content to the display module for displaying.
Optionally, in an embodiment of the present invention, the processing module is further configured to send a call request to the banking system.
Optionally, in an embodiment of the present invention, if the verification result is correct, the acquiring, by the processing module, the customer information sent by the bank system includes: and if the verification result is correct, the processing module receives the customer information sent by the bank system according to the calling request.
Optionally, in an embodiment of the present invention, the customer information includes information about a current date, a current period, a loan, a financing, a bond, a fund, a precious metal, a foreign exchange, an account product, and an electronic bank.
Optionally, in an embodiment of the present invention, the generating a client representation by using the client information includes: the processing module determines the customer representation as conservative, robust, balanced, growing, or aggressive based on the customer information.
Optionally, in an embodiment of the present invention, the promotion module is further configured to determine, according to the customer profile, personalized recommended content matched with the investment type of the customer, where the personalized recommended content includes a fixed deposit, a financing, a monetary fund, a credit card, a precious metal, and an electronic bank.
Optionally, in an embodiment of the present invention, the display module is a touch display screen.
Optionally, in an embodiment of the present invention, the display module is further configured to display the personalized recommended content in a corresponding area of the touch display screen according to a preset layout.
Optionally, in an embodiment of the present invention, the password elements include numbers, lower case letters, upper case letters, and special symbols.
Optionally, in an embodiment of the present invention, after receiving the transaction request, the invoking at least one password element and randomly arranging to generate a corresponding password element combination by the processing module includes: and the processing module is used for layering various password elements according to a preset sequence according to the transaction request type and randomly disordering the password elements in each layer.
The ATM password system of the invention adopts various password elements and combination forms, flexibly selects the types of the password elements, has higher flexibility, changes the mode of fixing the digital position, greatly enhances the password security, pushes personalized products and enriches the functions.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an ATM cryptographic system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating digital element displays according to an embodiment of the present invention;
FIGS. 3A and 3B are schematic illustrations of a multi-element hinge display in accordance with an embodiment of the present invention;
FIG. 4 is a flow chart of system service processing in an embodiment of the present invention;
fig. 5 is a schematic diagram of a display module pushing personalized products according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides an ATM password system.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of an ATM cryptosystem according to an embodiment of the present invention, where the system includes: the system comprises a processing module 10, a checking module 20, a propaganda module 30 and a display module 40;
after receiving the transaction request, the processing module 10 calls at least one password element and randomly arranges the password elements to generate a corresponding password element combination, sends the password element combination to the display module 40 for display, and sends password element position information of the password element combination to the verification module 20;
the display module 40 displays the password element combination and sends the received password information input by the client to the verification module 20;
the verification module 20 compares the password element position information and the password input information of the client with a password inquiry result sent by a bank system to generate a verification result;
if the verification result is correct, the processing module 10 acquires customer information sent by the banking system, generates a customer portrait by using the customer information, and sends the customer portrait to the propaganda module 30;
the promotion module 30 determines personalized recommended content based on the customer representation and sends it to the display module 40 for display.
In this embodiment, the transaction request input by the client includes a login request, a deposit and withdrawal request, a cash withdrawal request without a card, and the like after the card is inserted, and the processing module determines whether the client needs to input a password after receiving the transaction request. If not, the promotion module pushes the popular recommended content to the display module for display. If the password element combination is needed, the processing module calls at least one password element in the element library to carry out random arrangement, and the password element combination is generated. The processing module sends the password element combination to the display module for displaying so that a user can input a password on the display module, and sends the password element position information corresponding to the password element combination to the verification module. The checking module determines the input password sequence of the current user according to the client input password information and the password element position information received by the display module, and sends a password inquiry request to the processing module, the processing module calls the bank system to obtain a correct password sequence corresponding to the transaction request of the client, the checking module compares whether the two password sequences are consistent, if so, the checking result is correct, the service processing is carried out, and if not, the service processing interface is returned. If the verification result is correct, the processing module acquires client information from the bank system, generates a client portrait by using the client information, and sends the client portrait to the propaganda module, wherein the client portrait can represent investment preference of a client. The propaganda module determines personalized recommended content matched with the client investment preference by utilizing the client portrait and sends the personalized recommended content to the display module for displaying. Meanwhile, when the verification result is correct, the processing module sends the service to be handled by the client to the service handling module in the system for processing, and the service handling module can communicate with the bank system in the processing process to complete the transaction.
As an embodiment of the present invention, the processing module 10 is further configured to send a call request to the banking system. The invocation request may be used to invoke a password corresponding to the customer transaction request and to invoke customer information.
In this embodiment, if the verification result is correct, the acquiring, by the processing module, the customer information sent by the bank system includes: and if the verification result is correct, the processing module receives the customer information sent by the bank system according to the calling request.
The customer information comprises the information of the current date, the fixed period, the loan, the financing, the bond, the fund, the precious metal, the foreign exchange, the account product and the electronic bank.
In this embodiment, generating a customer representation using the customer information includes: the processing module determines the customer representation as conservative, robust, balanced, growing, or aggressive based on the customer information.
In this embodiment, the promotion module is further configured to determine personalized recommended content matched with the investment type of the client according to the client figure, where the personalized recommended content includes periodic deposit, financing, monetary fund, credit card, precious metal, electronic bank, and the like.
The display module is a touch display screen. By utilizing the touch display screen, the ATM password system realizes the input by adopting the soft keyboard, and avoids the problems of unattractive appearance, single function and the like of the traditional metal keyboard.
In this embodiment, the display module is further configured to display the personalized recommended content in a corresponding area of the touch display screen according to a preset layout.
As an embodiment of the present invention, the password elements include numbers, lower case letters, upper case letters, and special symbols.
In this embodiment, the invoking, by the processing module, at least one cryptographic element and randomly arranging to generate a corresponding cryptographic element combination after receiving the transaction request includes: and the processing module is used for layering various password elements according to a preset sequence according to the transaction request type and randomly disordering the password elements in each layer.
In a specific embodiment of the invention, the ATM password system further comprises a peripheral interface, a liquid crystal touch screen and a chip, and the system comprises a processing module, a checking module, a display module and a propaganda module, so that the functions of password input and product recommendation are realized. The processing module is connected with the bank server and is responsible for processing and storing the customer information; the checking module is responsible for comparing whether the system inquiry password is consistent with the client key-in password or not; the propaganda module is responsible for pushing product propaganda information to the client and can push personalized products; the display module is responsible for displaying the password element position sequence and displaying the product recommendation content.
The system of the invention uses abundant password element libraries comprising a plurality of types such as numbers, letters (case-to-case), special symbols and the like, and the password element library is set to contain N (N)1,N2,N3…Nn) And if the type is one, the password element library N is: n ═ x1N1+x2N2+x3N3…+xnNnWherein x isi∈{0,1},ni∈N*，niIs a positive integer, when containing an element of the i-th class, xiWhen 1 is absent, x isi0. The password system determines a password element library according to the transaction types, and when the types of the related elements are more, the display sequence needs to be appointed, such as the sequence is numbers, lower case letters, upper case letters, special symbols, operation symbols and the like.
In fact, the password element types can be set according to the transaction request types, for example, the bank card deposits and withdraws only need 6-digit passwords, so that the password element library only needs to select digits and can be displayed completely; when no card is available, a customer needs to input a verification code on a password keyboard, the verification code can be provided with a number and letter combination, and the verification code is folded and displayed when more elements are available.
In this embodiment, when different password elements are combined, the positions of the password elements are dynamically displayed according to a random principle, and the position information is displayed by sittingAnd (4) marking. The display sequence among the categories is preset, and the sequence in the categories is randomly arranged. Setting a password element library to contain N (N)1,N2,N3…Nn) Type, total N (N)1+N2+N3…+Nn) The elements are in the same order of positionAlternatively, one of the analog random number generators may be selected. The position coordinates are represented as (a, b, c), where a is the layer, b is the row, and c is the column. And after the position coordinates are generated, the position coordinates are uploaded to a processing module and are compared with the passwords returned by the bank terminal.
When the number of the password element libraries is small and the password element libraries can be completely displayed, the password element libraries are displayed by uploading position coordinates to a processing module when letters are clicked. For example, the withdrawal password has only 6 digits, the password is 123458, and the password keyboard displays the positions corresponding to the ten digits of 0-9 generated by the random number generator, as shown in fig. 2, the corresponding position information is (1,1,1), (1,1,2), (1,1,3), (1,1,4), (1,2,1), (1,3,1), and so on. The positions in fig. 2 are only examples, and the present invention does not limit the positions of numbers, and the positions of numbers are set randomly.
When more password elements are needed to be displayed in a split screen mode, the principle is the same as that of the whole display. For example, the password elements are displayed in the order of numbers, lower case letters and upper case letters, and assuming that the password is 12a4B, the corresponding coordinate information is (1,1,1), (1,1,2), (1,3,1), (1,1,4), (2,4,6), and so on. As shown in fig. 3A and 3B, the positions in fig. 3A and 3B are only examples, and the positions of the numbers and the letters are not limited in the present invention, and the positions of the numbers and the letters are set randomly. Further, the number elements and the letter elements in fig. 3A and 3B may be randomly generated according to a predetermined rule, for example, the number may be specified to be fixedly displayed above the letter, so as to facilitate the user to input the password.
In this embodiment, the product recommendation is displayed through the promotion module and the display module, and includes two types, i.e., popular recommendation and personalized recommendation. Popular recommendations are mainly generic products, including new products and businesses such as deposits, financing, funds, precious metals, ETC; the personalized recommendation is based on a client portrait generated by client information acquired from a bank terminal, and products suitable for the risk level, product preference and age stage of the client are recommended. The client portrait refers to an asset and debt proportion diagram, and the like generated on the basis of the client asset and debt. The detailed flow chart is shown in fig. 4, in which the client includes a display module in the ATM password system for receiving the password input by the client and displaying the display content to the client, and the self-service device includes a processing module and a propaganda module, and also includes a service processing module for processing the transaction request to be processed by the client.
After the password is checked to be correct, a query application, namely a call request, is sent to a bank terminal, information such as the life time, the period, the loan, the financing, the fund, the precious metal, the foreign exchange, the bond, the account product, the electronic bank and the like of a customer is obtained to generate a customer portrait, and the customer portrait is uploaded to a processing module.
The product recommendation sequence is based on the client figures, recommendation is carried out according to the age, the gender and the investment preference (conservative type, robustness, balanced type, growth type and access type) of the client, and when the client is conservative type, deposit, cost conservation and financing, currency fund and the like are mainly recommended. When the information amount in the client card is small, the experience basic products can be recommended, and the recommendation sequence is set according to categories, such as electronic banking, deposit, financing, loan, fund, precious metal, bond, account products and foreign exchange.
The promotion interface typesetting can be set individually, and the partition is carried out according to the requirement. For example, the special area displays of the life, the period, the financing and the like. At the same time, action settings can be made for the components of the interface, such as "a certain branch of the work line welcomes you! "may be configured to rotate into, promotional posters may be configured to roll into, etc. See figure 5 for details.
In an embodiment of the present invention, a specific business processing flow of the system of the present invention is illustrated. For example, the customer is a robust customer, 50 ten thousand dollars in a given line of assets, including 10 million higher knots, 30 million grand bills of deposit, 2 million live, 8 thousand monetary funds, and no credit card. A certain row mainly pushes ETC and happiness staging business at present. The customer withdraws money (inserts a bank card) at the ATM as follows:
1) the customer needs to carry out deposit and withdrawal operations at the ATM and inputs the bank card password according to the prompt.
2) The password input by the client is compared with the password returned by the bank terminal. And (3) assuming that the withdrawal password is 6 digits 123458, randomly displaying the sequence of ten digits of the password keyboard from 0 to 9, determining coordinate information according to the click position, sending a verification module, comparing the verification module with the password returned by the bank end, carrying out correct comparison, entering the next operation, carrying out incorrect comparison, and repeating the step (2).
3) After the passwords are compared correctly, information of the bank card holder on the live period, the fixed period, the loan, the financing, the fund, the precious metals, the foreign exchange, the bond, the account products, the electronic bank and the like is obtained from the bank end at the same time, the information is written into the processing module, the client portrait is generated and then pushed to the propaganda module, and the propaganda module recommends fixed period deposit, money protection and financing, currency fund and credit cards according to the type of client investment.
4) And (4) retreating the card after the business is finished, and rolling and playing the ETC and happiness staging business by the password liquid crystal screen. And (4) rolling and playing the popular product recommendation until the next client does not operate.
The ATM password system of the invention adopts the soft keyboard to replace the traditional client keyboard, and has the following advantages: the password is not limited to numbers, can be numbers, letters, special symbols or combination forms, the types of password elements are flexibly selected, and the flexibility is higher; the password elements are displayed in a classified and split screen mode, the mode of fixing the digital positions is changed, and the safety is higher; the processing module is responsible for storing basic information of the client returned from the bank system, is separated from the bank system and strictly prevents Trojan horse virus from invading; the propaganda module pushes product recommendation information, popular product posters are pushed when no customer operates, personalized products are pushed when the customer operates, and functions are richer.
The ATM password system of the invention adopts various password elements and combination forms, flexibly selects the types of the password elements, has higher flexibility, changes the mode of fixing the digital position, greatly enhances the password security, pushes personalized products and enriches the functions.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An ATM cryptosystem, the system comprising: the system comprises a processing module, a checking module, a propaganda module and a display module;
after receiving a transaction request, the processing module calls at least one password element and randomly arranges the password elements to generate a corresponding password element combination, sends the password element combination to the display module for display, and sends password element position information of the password element combination to the verification module;
the display module displays the password element combination and sends the received password information input by the client to the verification module;
the verification module compares the password element position information and the password input information of the client with a password inquiry result sent by a bank system to generate a verification result;
if the verification result is correct, the processing module acquires client information sent by a bank system, generates a client portrait by using the client information, and sends the client portrait to the propaganda module;
and the propaganda module determines personalized recommended content according to the client portrait and sends the personalized recommended content to the display module for displaying.
2. The system of claim 1, wherein the processing module is further configured to send a call request to the banking system.
3. The system according to claim 2, wherein if the verification result is correct, the processing module obtaining the customer information sent by the banking system comprises: and if the verification result is correct, the processing module receives the customer information sent by the bank system according to the calling request.
4. The system of claim 3, wherein the customer information includes current dates, loans, financing, bonds, funds, precious metals, foreign exchange, account products, and electronic banking information.
5. The system of claim 4, wherein said generating a customer representation using said customer information comprises: the processing module determines the customer representation as conservative, robust, balanced, growing, or aggressive based on the customer information.
6. The system of claim 5, wherein the promotion module is further configured to determine personalized recommended content matching the investment type of the customer representation, the personalized recommended content including periodic deposits, financing, monetary funds, credit cards, precious metals, and electronic banking.
7. The system of claim 6, wherein the display module is a touch display screen.
8. The system according to claim 7, wherein the display module is further configured to display the personalized recommended content in a corresponding area of the touch screen according to a preset composition.
9. The system of claim 1, wherein the cryptographic elements comprise numbers, lower case letters, upper case letters, and special symbols.
10. The system of claim 9, wherein the processing module, upon receiving the transaction request, invokes at least one cryptographic element and randomly arranges to generate a corresponding combination of cryptographic elements comprises: and the processing module is used for layering various password elements according to a preset sequence according to the transaction request type and randomly disordering the password elements in each layer.
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| CN201910917093.7A CN110660178A (en) | 2019-09-26 | 2019-09-26 | ATM password system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910917093.7A CN110660178A (en) | 2019-09-26 | 2019-09-26 | ATM password system |
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| CN110660178A true CN110660178A (en) | 2020-01-07 |
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|---|---|---|---|---|
| WO2004008304A2 (en) * | 2002-07-15 | 2004-01-22 | Ivan Gondim Leichsenring | Unpredictable keyboard |
| CN101510331A (en) * | 2008-02-17 | 2009-08-19 | 马泉 | Intelligent keyboard input device of ATM teller machine |
| CN101980308A (en) * | 2010-11-26 | 2011-02-23 | 张翊 | Code variable keyboard with unfixed key positions and code variable method |
| CN108154055A (en) * | 2018-01-10 | 2018-06-12 | 上海展扬通信技术有限公司 | Cipher-code input method, mobile terminal and storage medium |
| CN109712001A (en) * | 2018-11-29 | 2019-05-03 | 平安科技（深圳）有限公司 | Information recommendation method, device, computer equipment and storage medium |
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2019
- 2019-09-26 CN CN201910917093.7A patent/CN110660178A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004008304A2 (en) * | 2002-07-15 | 2004-01-22 | Ivan Gondim Leichsenring | Unpredictable keyboard |
| CN101510331A (en) * | 2008-02-17 | 2009-08-19 | 马泉 | Intelligent keyboard input device of ATM teller machine |
| CN101980308A (en) * | 2010-11-26 | 2011-02-23 | 张翊 | Code variable keyboard with unfixed key positions and code variable method |
| CN108154055A (en) * | 2018-01-10 | 2018-06-12 | 上海展扬通信技术有限公司 | Cipher-code input method, mobile terminal and storage medium |
| CN109712001A (en) * | 2018-11-29 | 2019-05-03 | 平安科技（深圳）有限公司 | Information recommendation method, device, computer equipment and storage medium |
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