CN112785305A - Collection terminal, double off-line transaction method and system - Google Patents
Collection terminal, double off-line transaction method and system Download PDFInfo
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- CN112785305A CN112785305A CN202110088154.0A CN202110088154A CN112785305A CN 112785305 A CN112785305 A CN 112785305A CN 202110088154 A CN202110088154 A CN 202110088154A CN 112785305 A CN112785305 A CN 112785305A
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Abstract
The invention relates to a collection terminal, a double off-line transaction method and a double off-line transaction system. The method comprises the following steps: the platform end acquires user identification of a user side and terminal identification of all collection terminals; the platform end calculates the off-line transaction codes of each user end for different collection terminals according to the user identification and the terminal identification; and all off-line transaction codes are issued to corresponding user terminals; when a user terminal carries out transaction at a designated collection terminal, the collection terminal acquires a user identifier of the user terminal and an offline transaction code corresponding to the collection terminal; the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the calculation process of the real-time transaction code and the off-line transaction code is the same, and the digit is the same; the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected. According to the invention, double off-line transaction is realized through calculation of the real-time transaction code of the payment receiving terminal, the dependence on a network is reduced, and the experience effect of a user is improved.
Description
Technical Field
The invention relates to a collection terminal, a double off-line transaction method and a double off-line transaction system, and belongs to the technical field of data processing.
Background
With the increasingly widespread use of electronic payment, online payment is more and more mature, and the online payment needs a payment receiving terminal or a user to be connected with the internet, and related information of a payment code is acquired from a specified server to complete the online payment.
However, the online payment method is required to be completed under the condition that one of the user and the collection terminal is networked, and if the user and the collection terminal are not online, the transaction cannot be completed.
There is therefore a need to propose a transaction method for double offline payment.
Disclosure of Invention
The application aims to provide a collection terminal, a double off-line transaction method and a double off-line transaction system, and provides an effective technical scheme for realizing double off-line payment.
In order to achieve the above object, the present application provides a technical solution of a dual offline transaction method, which includes the following steps:
1) the platform end acquires a user identifier of a user end and terminal identifiers of all collection terminals;
2) the platform end calculates the off-line transaction codes of each user end for different collection terminals according to the user identification and the terminal identification; and all off-line transaction codes are issued to corresponding user terminals;
3) when a user terminal carries out transaction at a designated collection terminal, the collection terminal acquires a user identifier of the user terminal and an offline transaction code corresponding to the collection terminal;
4) the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the real-time transaction code and the off-line transaction code have the same calculation process and the same digit;
5) the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected.
The technical scheme of the double off-line transaction method has the beneficial effects that: the platform end obtains the offline transaction code of the user end for each collection terminal according to the user identification and the terminal identification, when in transaction, the user end sends the user identification of the user end and the corresponding offline transaction code to the collection terminal, the collection terminal calculates the real-time transaction code by combining the terminal identification of the collection terminal and the user identification, and whether the transaction can be carried out can be determined by comparing the offline transaction code with the real-time transaction code. According to the invention, double off-line transaction is realized through calculation of the real-time transaction code of the payment receiving terminal, the dependence on a network is reduced, and the experience effect of a user is improved. The double off-line transaction method has wide application range and can be suitable for environments needing off-line transaction, such as small amount transaction, identity recognition and the like.
Further, in order to improve the reliability of the dual offline transaction, the step 2) further includes a verification step: after the platform terminal calculates the code value of N bits according to the user identification and the terminal identification, the front x bits are intercepted as an offline transaction code; if more than two off-line transaction codes are repeated, increasing the intercepted digit to update the off-line transaction codes; the number of offline transaction digits is less than M, wherein M is the maximum digit determined by the collection terminal; x is more than M and less than N.
Further, in order to improve the safety of the double off-line transaction, the platform end also determines the effective period of the off-line transaction code, the effective period determined by the platform end is issued to each collection terminal, the collection terminal judges whether the transaction time exceeds the effective period before the transaction is carried out, and if the transaction time exceeds the effective period, the transaction is rejected.
Furthermore, the effective period determined by the platform end is combined when the offline transaction code and the real-time transaction code are calculated.
Further, in order to improve the safety of the double off-line transaction, an off-line transaction code and a real-time transaction code are calculated according to an encryption algorithm.
Further, the encryption algorithm is CRC, XOR, DES, 3DES, AES, SM4, MD5, SM3, or SHA 1.
Further, the effective period is a natural time period or a set time period.
In addition, the application provides a technical scheme of a double-off-line transaction system, which comprises a user side, a platform side and a plurality of collection terminals:
the user side sends the user identification of the user side to the platform side, and the plurality of money receiving terminals send the terminal identification of the user side to the platform side;
the platform end calculates the off-line transaction codes of each user end for different collection terminals according to the user identification and the terminal identification; and all off-line transaction codes are issued to corresponding user terminals;
when a user terminal carries out transaction at a designated collection terminal, the collection terminal acquires a user identifier of the user terminal and an offline transaction code corresponding to the collection terminal;
the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the real-time transaction code and the off-line transaction code have the same calculation process and the same digit;
the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected.
The technical scheme of the double off-line transaction system has the beneficial effects that: the platform end obtains the offline transaction code of the user end for each collection terminal according to the user identification and the terminal identification, when in transaction, the user end sends the user identification of the user end and the corresponding offline transaction code to the collection terminal, the collection terminal calculates the real-time transaction code by combining the terminal identification of the collection terminal and the user identification, and whether the transaction can be carried out can be determined by comparing the offline transaction code with the real-time transaction code. According to the invention, double off-line transaction is realized through calculation of the real-time transaction code of the payment receiving terminal, the dependence on a network is reduced, and the experience effect of a user is improved. The double off-line transaction method has wide application range and can be suitable for environments needing off-line transaction, such as small amount transaction, identity recognition and the like.
Further, in order to improve the safety of the double off-line transaction, the platform end also determines the effective period of the off-line transaction code, the effective period determined by the platform end is issued to each collection terminal, the collection terminal judges whether the transaction time exceeds the effective period before the transaction is carried out, and if the transaction time exceeds the effective period, the transaction is rejected.
In addition, the present application provides a technical solution of a cash receiving terminal, including a processor, a memory, and a computer program stored in the memory and operable on the processor, where the processor implements the following steps when executing the computer program:
a collection terminal acquires a user identifier of a user side and an offline transaction code corresponding to the collection terminal;
the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the real-time transaction code and the off-line transaction code have the same calculation process and the same digit;
the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected.
The technical scheme of the invention has the beneficial effects that: when the collection terminal conducts transaction, the user side sends the user identification of the user side and the corresponding off-line transaction code to the collection terminal, the collection terminal calculates the real-time transaction code by combining the terminal identification of the user side and the user identification, and whether the transaction can be conducted or not can be determined by comparing the off-line transaction code with the real-time transaction code. According to the invention, double off-line transaction is realized through calculation of the real-time transaction code of the payment receiving terminal, the dependence on a network is reduced, and the experience effect of a user is improved.
Drawings
Fig. 1 is a flow chart of a transaction method in the dual offline transaction system of the present invention.
Detailed Description
Dual offline transaction system embodiments:
the invention has the main idea that in order to realize double off-line transaction, the platform end calculates the off-line transaction codes of different users to different collection terminals and stores the off-line transaction codes in corresponding user ends, when the user ends interact with the specified collection terminals, the collection terminals calculate real-time transaction codes, and when the real-time transaction codes are the same as the off-line transaction codes, the transaction is completed.
As shown in fig. 1, the dual offline transaction system includes a user side, a platform side, and a collection terminal, wherein the user side, the collection terminal, and the platform side can be connected in communication.
The platform end is an interaction platform such as an internet trusted site service cloud platform, a one-card platform and the like, and is used for generating an offline transaction code according to information of the user end and the collection terminal and sending the offline transaction code to the user end for storage; the user side comprises the user sides which can receive messages, such as a mobile terminal APP, WeChat, a Web website, a CS client, a mailbox and the like; the collection terminal comprises a water control terminal, an identity recognition terminal, a consumption terminal and the like; when the user terminal and the collection terminal are transacted, the collection terminal calculates the real-time transaction code, and the transaction is completed when the obtained real-time transaction code is the same as the off-line transaction code, so that the double off-line transaction method through the off-line transaction code is realized.
Specifically, the double off-line transaction method comprises an on-line process and an off-line transaction process.
The online process is used for realizing the generation of the offline transaction code and requires the user terminal, the collection terminal and the platform terminal to communicate, and comprises the following steps:
1) the user side registers at the platform side, and the platform side binds all the collection terminals.
The platform end stores the registration information when receiving a registration request of the user end, wherein the user identification is unique in the platform.
The platform end is used for binding the collection terminal and storing the terminal information of the collection terminal. The terminal identifier may be a terminal area ID, which indicates a receiving terminal in a certain area, for example: the school bathroom has more than one terminal, but all terminals are located in the area of the school bathroom.
2) Setting an effective period at the platform end; and the set effective period is sent to all the money receiving terminals.
The effective period set by the platform end is the effective period of the off-line transaction code, the effective period can be a natural time period, and the effective period can also be a self-defined time period, wherein the natural time unit comprises year, season, month, week, day, hour and the like, and the self-defined time period is set 10 days or 15 days and the like.
The purpose of issuing the valid period to the collection terminal is to unify the time periods of the platform end and the collection terminal so as to ensure the safe transaction of the off-line transaction code.
3) The platform end constructs a data field according to the user identification, the terminal identification and the effective period, the constructed data field combines an encryption algorithm to generate the offline transaction codes of each user end for different cash receiving terminals, and the offline transaction codes are sent to the corresponding user ends.
The encryption algorithm comprises general algorithms such as CRC, XOR, DES, 3DES, AES, SM4, MD5, SM3 and SHA1, the constructed data field is combined with the encryption algorithm to obtain an encryption result of an N-bit code value, and front x bits (x belongs to 2-8) are intercepted from the encryption result to serve as offline transaction codes.
The off-line transaction code is generally composed of numbers, letters or a mixture of numbers and letters, in order to avoid the repetition of the off-line transaction code, the off-line transaction code needs to be verified according to a user identifier and a terminal identifier, if the off-line transaction code is not repeated, the off-line transaction code is stored, and if more than two off-line transaction codes are repeated, the intercepted digits are increased to update the off-line transaction code; the number of offline transaction digits is less than M, wherein M is the maximum digit determined by the collection terminal; x is more than M and less than N.
Of course, as other embodiments, the present invention is not limited as to how to intercept the encryption result, and the last bits may also be intercepted from the middle of the N-bit code value or several bits.
For a certain user side, the number of the stored offline transaction codes is the same as that of the collection terminals, and the offline transaction codes correspond to the collection terminals one to one.
The off-line transaction code can only be used in the effective period, and the platform end can regularly update the off-line transaction code on line according to the effective period.
The off-line transaction process is used for realizing off-line transaction of off-line transaction codes, and needs the user side to communicate with the collection terminal, and comprises the following steps:
1) before the user side carries out transaction on the appointed collection terminal, the collection terminal judges whether the current transaction time exceeds the effective period, if the current transaction time exceeds the effective period, the transaction is rejected, and if the current transaction time does not exceed the effective period, the step 2) is carried out.
2) When the user side transacts on the appointed collection terminal, the user side uploads the user identification and the off-line transaction code to the collection terminal.
Because the user end and the collection terminal have a plurality of forms, the uploading user end uploads the user identification and the off-line transaction code to the collection terminal in a plurality of ways. For example: the receiving terminal is of an input type, and then the user directly inputs the user identification and the off-line transaction code into the receiving terminal.
3) The collection terminal constructs a data field according to the user identification, the terminal identification of the collection terminal and the effective period, and the constructed data field is combined with an encryption algorithm to generate a real-time transaction code.
The process of calculating the real-time transaction code by the payee terminal is the same as the process of calculating the off-line transaction code by the platform terminal, and is not described herein.
4) The money receiving terminal judges whether the digit of the real-time transaction code is the same as the digit of the off-line transaction code, if not, the position of the real-time transaction code is increased until the digits are the same.
5) After the digits of the real-time transaction code and the off-line transaction code are the same, the collection terminal judges whether the real-time transaction code and the off-line transaction code are the same or not, and if the real-time transaction code and the off-line transaction code are the same, the transaction is allowed; if not, the transaction is rejected.
6) After the transaction is successful, the collection terminal forms a transaction record and stores the transaction record; and after the transaction fails, returning error information, and ending the transaction.
After the off-line transaction process is finished, the collection terminal can be connected with the platform end on line, and fund transfer is applied to the platform end through the transaction record.
In the above embodiment, in order to improve the security of the offline transaction, the offline transaction code is updated periodically, and as another implementation, the offline transaction code may not be updated under the condition that the security of the offline transaction code is ensured, and the platform end does not need to set an effective period, so that the effective period does not need to be combined when the offline transaction code and the real-time transaction code are calculated.
In the above embodiment, in order to avoid the duplication of the offline transaction code, the step of verifying the offline transaction code is further included, and as another embodiment, the verification may not be performed under the condition that the offline transaction code is not duplicated.
In the above embodiment, in order to improve the area convenience of the dual offline transaction, the terminal identifier is a terminal area ID, the platform end may generate the same dual offline transaction code for the terminal in the designated area, and as another implementation, the platform end may also generate an offline transaction code for each terminal in the designated area.
The invention solves the transaction problem of the user side and the collection terminal in the off-line scene, and reduces the dependence of the transaction on the network. Many off-line scenes and wide application range, for example: user identification, small transactions, etc.
The embodiment of the double off-line transaction method comprises the following steps:
the specific implementation process and beneficial effects of the dual offline transaction method are described in the above embodiment of the dual offline transaction system, and are not described herein again.
The embodiment of the collection terminal comprises:
the specific process and beneficial effects of the receiving terminal for implementing the dual offline transaction are introduced in the above embodiment of the dual offline transaction system, and are not described herein again.
Claims (10)
1. A dual offline transaction method, comprising the steps of:
1) the platform end acquires a user identifier of a user end and terminal identifiers of all collection terminals;
2) the platform end calculates the off-line transaction codes of each user end for different collection terminals according to the user identification and the terminal identification; and all off-line transaction codes are issued to corresponding user terminals;
3) when a user terminal carries out transaction at a designated collection terminal, the collection terminal acquires a user identifier of the user terminal and an offline transaction code corresponding to the collection terminal;
4) the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the real-time transaction code and the off-line transaction code have the same calculation process and the same digit;
5) the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected.
2. The dual offline transaction method according to claim 1, wherein said step 2) further comprises a verification step: after the platform terminal calculates the code value of N bits according to the user identification and the terminal identification, the front x bits are intercepted as an offline transaction code; if more than two off-line transaction codes are repeated, increasing the intercepted digit to update the off-line transaction codes; the number of offline transaction digits is less than M, wherein M is the maximum digit determined by the collection terminal; x is more than M and less than N.
3. The double offline transaction method according to claim 1 or 2, wherein the platform end further determines a valid period of the offline transaction code, the valid period determined by the platform end is issued to each of the collection terminals, the collection terminals determine whether the transaction time exceeds the valid period before performing the transaction, and if the transaction time exceeds the valid period, the transaction is rejected.
4. The dual offline transaction method of claim 3, wherein the calculation of the offline transaction code and the real-time transaction code further incorporates a validity period determined by the platform.
5. The dual offline transaction method according to claim 1 or 2, wherein the offline transaction code and the real-time transaction code are calculated according to an encryption algorithm.
6. The dual offline transaction method of claim 5, wherein the encryption algorithm is CRC, XOR, DES, 3DES, AES, SM4, MD5, SM3, or SHA 1.
7. The dual offline transaction method of claim 2, wherein the validity period is a natural time period or a set time period.
8. A double off-line transaction system is characterized by comprising a user side, a platform side and a plurality of collection terminals:
the user side sends the user identification of the user side to the platform side, and the plurality of money receiving terminals send the terminal identification of the user side to the platform side;
the platform end calculates the off-line transaction codes of each user end for different collection terminals according to the user identification and the terminal identification; and are
Issuing all the off-line transaction codes to corresponding user terminals;
when a user terminal carries out transaction at a designated collection terminal, the collection terminal acquires a user identifier of the user terminal and an offline transaction code corresponding to the collection terminal;
the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the real-time transaction code and the off-line transaction code have the same calculation process and the same digit;
the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected.
9. The dual offline transaction system of claim 8, wherein the platform further determines a valid period of the offline transaction code, and issues the valid period determined by the platform to each of the receiving terminals, and the receiving terminals determine whether the transaction time exceeds the valid period before performing the transaction, and refuse the transaction if the transaction time exceeds the valid period.
10. A checkout terminal comprising a processor, a memory and a computer program stored in the memory and executable on the processor, the processor when executing the computer program effecting the steps of:
a collection terminal acquires a user identifier of a user side and an offline transaction code corresponding to the collection terminal;
the collection terminal calculates a real-time transaction code according to the user identification and the terminal identification of the collection terminal; the real-time transaction code and the off-line transaction code have the same calculation process and the same digit;
the collection terminal judges whether the offline transaction code is the same as the real-time transaction code, and if so, the transaction is carried out; if not, the transaction is rejected.
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