CN103646467B - A kind of logic encryption card offline transaction data processing method and device - Google Patents
A kind of logic encryption card offline transaction data processing method and device Download PDFInfo
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- CN103646467B CN103646467B CN201310722699.8A CN201310722699A CN103646467B CN 103646467 B CN103646467 B CN 103646467B CN 201310722699 A CN201310722699 A CN 201310722699A CN 103646467 B CN103646467 B CN 103646467B
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Abstract
The present invention provides a kind of logic encryption card offline transaction data processing methods, including read off line balance information and nearest offline transaction managing detailed catalogue, and off line balance information and nearest offline transaction managing detailed catalogue include check code；Check whether the off line balance information and the nearest respective check code of offline transaction managing detailed catalogue are correct, data recovery process is carried out according to inspection result.The present invention also provides a kind of logic encryption card offline transaction data processing equipments.Using technical solution of the present invention, in the case where not needing additionally to occupy the card memory space of logic encryption card, realization had not only met off line query history Transaction Information and had achieved the purpose that remaining sum backup and prevent from pulling out card to cause data destruction.
Description
Technical field
The present invention relates to integrated circuit card technology field more particularly to a kind of logic encryption card offline transaction data processing sides
Method and device.
Background technique
Integrated circuit card (IC card, Integrated Circuit Card) is also referred to as smart card or smart card, be after magnetic card it
Another information carrier occurred afterwards.Currently, common IC card is CPU card and logic encryption card in the market.Wherein, in CPU card
Embedding dedicated operating system can guarantee the data integrity processing during offline transaction；And logic encryption card is without containing interior
The processing of transaction data integrality is set, logic encryption card only simply provides the storage of Transaction Information in entire process of exchange
Function only provides direct read/write flash memory (Flash Memory) or Electrically Erasable Programmable Read-Only Memory in data storage
(EEPROM, Electrically Erasable Programmable Read-Only Memory) mode, so that being handed in off line
Card is pulled out in easy link in advance or is easy to cause card transaction data imperfect when being detached from induction zone, or even causes the remaining of card preservation
Volume information errors.Terminal is needed the operation such as its relevant information to be safeguarded and restored completely when the power break occurs.Due to history
Reason and CPU card price is higher causes original system upgrading cost larger, logic encryption card public utilities, member card,
Prepaid card etc. is widely used always in non-financial field, will also be existed from now on.This needs to find a kind of method just to solve
Certainly when logic encryption card offline transaction data store integrity issue so that logic encryption card under the premise of limited safe at
It is selected for public high performance-price ratio.
Summary of the invention
The present invention is led in view of the above-mentioned problems, propose a kind of logic encryption card offline transaction data processing method and device
The mechanism such as data redundancy and state machine are crossed, carry out the integrity checking of card data automatically in card operating process, and in number
Data recovery is automatically performed when according to breakage.
In one aspect, the present invention provides a kind of logic encryption card offline transaction data processing methods, including following step
It is rapid:
Read off line balance information and nearest offline transaction managing detailed catalogue, the off line balance information and the nearest off line
Transaction details information includes check code；
Check whether the off line balance information and the nearest respective check code of offline transaction managing detailed catalogue are correct, root
Data recovery process is carried out according to inspection result.
The off line balance information includes off line remaining sum, and the offline transaction managing detailed catalogue includes before trading serial number, transaction
Remaining sum and turnover.
If the check code of the off line balance information and the nearest offline transaction managing detailed catalogue is correct, continue to examine
Looking into the off line remaining sum, whether to subtract the value obtained after turnover with remaining sum before the transaction identical, when the off line remaining sum and institute
When stating that remaining sum subtracts the value difference obtained after turnover before trading, the nearest offline transaction managing detailed catalogue is deleted.
If the check code of the check code of the off line balance information last sale managing detailed catalogue is correct,
Remaining sum before the transaction is then replaced into the off line remaining sum, the nearest offline transaction managing detailed catalogue is deleted after the completion of repairing.
If the check code of the check code of the off line balance information last sale managing detailed catalogue is incorrect,
Then delete the nearest offline transaction managing detailed catalogue.
The method also includes: current offline transaction managing detailed catalogue is added first when carrying out offline transaction every time, has been added
The off line balance information is updated later.
The current offline transaction managing detailed catalogue of addition is specifically, bright by the transaction serial number lookup nearest offline transaction
The current offline transaction managing detailed catalogue is placed on the position of x remainder n by thin information, and wherein x is the transaction of current offline transaction
Serial number, n are the recordable number of logic encryption card maximum.
On the other hand, the present invention provides a kind of logic encryption card offline transaction data processing equipments, comprising:
Read module, for reading off line balance information and nearest offline transaction managing detailed catalogue, the off line balance information
It include check code with the nearest offline transaction managing detailed catalogue；
Module is checked, for checking the off line balance information and the nearest respective verification of offline transaction managing detailed catalogue
Whether code is correct；
Recovery module, for carrying out data recovery process according to the inspection result for checking module.
The read module is used to read the off line remaining sum and offline transaction detail letter of the off line balance information
Remaining sum and turnover before the transaction serial number of breath, transaction.
The recovery module is used for the check code when the off line balance information and the nearest offline transaction managing detailed catalogue
When correct, it is identical to check whether the off line remaining sum subtracts the value obtained after turnover with remaining sum before the transaction, when described
When remaining sum subtracts the value difference obtained after turnover before off line remaining sum and the transaction, the nearest offline transaction detail is deleted
Information.
The recovery module is used for when the check code of the off line balance information last sale detail letter
When the check code of breath is correct, remaining sum before the transaction is replaced into the off line remaining sum, the nearest off line is deleted after the completion of repairing
Transaction details information.
The recovery module is used for the check code last sale managing detailed catalogue when the off line balance information
Check code it is incorrect when, delete the nearest offline transaction managing detailed catalogue.
Described device further include: update module adds current offline transaction detail letter when for carrying out offline transaction every time
Breath updates the off line balance information after having added.
The update module searches the nearest offline transaction managing detailed catalogue by transaction serial number, and the current off line is handed over
Easy managing detailed catalogue is placed on the position of x remainder n, and wherein x is the transaction serial number of current offline transaction, and n is that logic encryption card is maximum
Recordable number.
The present invention is mutually standby by being carried out using history offline transaction managing detailed catalogue to transactions balances information, using of the invention
Technical solution does not need the card memory space for additionally occupying logic encryption card, is meeting off line query history Transaction Information
Meanwhile and achieving the purpose that remaining sum backup causes data destruction with preventing from pulling out card.
Detailed description of the invention
Specific embodiments of the present invention are described below with reference to accompanying drawings, in which:
Fig. 1 shows the flow chart of logic encryption card offline transaction data processing method of the embodiment of the present invention；
Fig. 2 shows the structural schematic diagrams of logic encryption card offline transaction data processing equipment of the embodiment of the present invention.
Specific embodiment
In order to which technical solution of the present invention and advantage is more clearly understood, below in conjunction with attached drawing to of the invention exemplary
Embodiment is described in more detail, it is clear that and the described embodiments are merely a part of the embodiments of the present invention, rather than
The exhaustion of all embodiments.
It is for logic encryption card the invention proposes a kind of logic encryption card offline transaction data processing method and device
The method that storage processing is carried out to offline transaction data under offline transaction scene.Wherein, offline transaction refers to transaction system
Consumed or supplemented with money according to the electronic purse balance amount information built in card, and in more neocaine remaining sum behavior.
The embodiment of the invention provides a kind of logic encryption card offline transaction data processing method, Fig. 1 shows this method
Method flow diagram, specifically includes the following steps:
S101, off line balance information and nearest offline transaction managing detailed catalogue are read.
The card internal data structure of logic encryption card can be completed in the card personalization stage in the embodiment of the present invention, including wound
It builds and is operated with the offline transaction data etc. on initialized card.
Offline transaction data structure includes off line balance information and the two regions of offline transaction managing detailed catalogue.Wherein, it takes off
Machine balance information includes off line remaining sum, check code etc.；Offline transaction managing detailed catalogue can be made of multiple records, every record packet
Remaining sum, type of transaction, turnover, check code etc. before trading serial number, transaction are included, transaction serial number is generally numbered by number 1.
During carrying out offline transaction, when being related to information operation (namely writing operation) on more neocaine, it is necessary to follow
The principle that off line balance information is first updated after addition offline transaction managing detailed catalogue, can guarantee that contingency writes card crash, only meeting in this way
Cause that transaction details are invalid or remaining sum is invalid, without the situation for causing all information invalid simultaneously.
The mode that judgement effectively records is that transaction serial number is not that empty and current record check code is correct.
Wherein, check code is the data integrity recorded where verify, can using cyclic redundancy check (CRC,
Cyclic Redundancy Check) mode, other verification modes, the invention is not limited in this regard can also be used.
S102, before the inquiry of logic encryption card off line or offline transaction, check off line balance information and nearest offline transaction
Whether the respective check code of managing detailed catalogue is correct, and carries out data recovery process according to check results.Specific data recovery process
Operation are as follows:
1) if off line balance information and the check results of nearest offline transaction managing detailed catalogue are to verify successfully, into one
Step check off line remaining sum and the remaining sum in nearest offline transaction managing detailed catalogue whether match namely off line balance information in off line
The value that remaining sum obtains after whether subtracting turnover with remaining sum before the transaction in nearest offline transaction managing detailed catalogue is identical.If phase
Together, then it is assumed that data are correct in the card of logic encryption card, can carry out offline transaction next time or return to reading of content；It is no
Then, nearest offline transaction managing detailed catalogue is deleted, data recovery process is completed.
If 2) verification of off line balance information fails and last sale managing detailed catalogue verifies successfully, off line remaining sum letter is repaired
Breath is deleted after reparation that is, by the off line remaining sum before the transaction in nearest offline transaction detail in remaining sum replacement off line balance information
Nearest offline transaction managing detailed catalogue, completes data recovery process.
If 3) off line balance information verifies successfully and the failure of offline transaction managing detailed catalogue verification recently, directly delete most
Nearly offline transaction managing detailed catalogue, completes data recovery process.
Confirm that data are correct in the card of logic encryption card, if this is the inspection initiated based on user query, return
User query result；If this is the inspection initiated before needing that offline transaction occurs again, after confirming that data are correct
It can carry out offline transaction next time.
Logic encryption card offline transaction data processing method provided by the embodiment of the present invention further include:
Carry out offline transaction after the completion of S103, data recovery process, when each offline transaction adds current off line first and hands over
Easy managing detailed catalogue, addition update off line balance information again after completing.
When carrying out offline transaction every time, nearest offline transaction detail is searched by transaction serial number, it is bright in nearest offline transaction
It is thin to add current offline transaction detail, final updating off line balance information below.
Since the capacity of logic encryption card is limited, offline transaction managing detailed catalogue uses cycle index side in the embodiment of the present invention
Formula.Assuming that maximum recordable item number is n, then when xth offline transaction occurs, xth offline transaction managing detailed catalogue can be stored
On the position of x remainder n.In practical application, system can be handed over before storing offline transaction managing detailed catalogue by searching for off line
The maximum record of transaction serial number is used as nearest offline transaction in easy managing detailed catalogue, so that it is determined that the transaction sequence of current offline transaction
Number, and current offline transaction managing detailed catalogue is followed closely and is stored behind nearest offline transaction detail record.If nearest offline transaction
Managing detailed catalogue is stored in rearmost position, then explanation has reached dominant record number, then current offline transaction detail is unrolled to note
The position that number is 1 is recorded to store.
When pulling out card during the offline transaction, record data destruction may cause, be exemplified below three time points pulls out card
Operation:
1) card is pulled out when adding offline transaction detail, it is imperfect at this moment will lead to offline transaction detailed data.
2) card is pulled out in the operating clearance for having added offline transaction detail, preparation update off line remaining sum, at this moment will cause recently
Remaining sum and off line remaining sum mismatch before the transaction of offline transaction detail, " remaining sum=off line before nearest offline transaction that is, do not meet
The nearest offline transaction volume of remaining sum-".
3) card is pulled out when updating off line remaining sum, the data that at this moment will cause off line balance information are imperfect.
Logic encryption card offline transaction data processing method provided in an embodiment of the present invention, by utilizing historical transactional information
It is mutually standby to the progress of transactions balances information, the card memory space for additionally occupying logic encryption card is not needed, off line inquiry is being met
While historical transactional information, and achieve the purpose that remaining sum backup causes data destruction with preventing from pulling out card.
Based on the same inventive concept, the embodiment of the invention also provides a kind of logic encryption card offline transaction data processing dresses
It sets, structural schematic diagram is as shown in Fig. 2, specifically include:
Read module 201, for reading off line balance information and nearest offline transaction managing detailed catalogue.Off line balance information and
Nearest offline transaction managing detailed catalogue all includes check code respectively.
Offline transaction data structure on logic encryption card includes off line balance information and offline transaction managing detailed catalogue two
Point, data structure can be carried out in logic encryption card initial phase creating and individualizing setting.Wherein, off line remaining sum is believed
Breath includes off line remaining sum, check code etc.；Offline transaction managing detailed catalogue can be made of multiple records, and each is recorded as a friendship
Remaining sum, type of transaction, turnover, check code etc. before easy detail, including transaction serial number, transaction.
Module 202 is checked, for checking that off line balance information is with the nearest respective check code of offline transaction managing detailed catalogue
It is no correct.
Recovery module 203, for according to the inspection result progress data recovery process operation for checking module 202.
When the check results of off line balance information and nearest offline transaction managing detailed catalogue are to verify successfully, recovery module
Whether the off line remaining sum in 203 inspection off line balance informations with remaining sum before the transaction of nearest offline transaction managing detailed catalogue subtracts transaction
The value obtained after volume is identical, if identical, then it is assumed that data are correct in the card of logic encryption card, can carry out next time de-
Machine transaction returns to reading of content；Otherwise, recovery module 203 deletes nearest offline transaction managing detailed catalogue, completes data and restores
Processing.
When off line balance information verifies failure and last sale managing detailed catalogue verifies successfully, recovery module 203 is for repairing
Rethresher balance information, i.e., by before the transaction in nearest offline transaction detail remaining sum replacement off line balance information in off line more than
Volume deletes nearest offline transaction managing detailed catalogue after the completion of replacement, complete data recovery process.
When off line balance information verify successfully and recently offline transaction managing detailed catalogue verification failure when, recovery module 203 use
In deleting nearest offline transaction managing detailed catalogue, data recovery process is completed.
The logic encryption card offline transaction data processing equipment that the embodiment of the present invention is proposed further include:
Update module 204, for updating the data on logic encryption card when offline transaction occurs every time.Specially update
Module 204 adds current offline transaction managing detailed catalogue first, and addition updates off line balance information again after completing.
Update module 204 adds current offline transaction managing detailed catalogue specifically, update module is found by serial number of trading
Nearest offline transaction managing detailed catalogue, current offline transaction managing detailed catalogue is placed on the position of x remainder n.Wherein, x is current de-
The transaction serial number of machine transaction, n are the recordable number of logic encryption card maximum.
Logic encryption card offline transaction data processing method provided in an embodiment of the present invention and device, by being handed over using history
Easy information backs up mutually transactions balances information, that is, utilizing remaining sum before trading in offline transaction managing detailed catalogue and transaction
The difference of volume should be equal with the off line remaining sum numerical value in off line balance information principle, be implemented without and additional occupy logic add
The card memory space of close card while meeting off line query history Transaction Information, and has reached remaining sum backup and has prevented from pulling out
Card causes the purpose of data destruction.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited.Therefore, without departing substantially from this
In the case where the spirit and its essence of invention, those skilled in the art can be variously modified, replacement and variant.It will be apparent that but
These change, replacement and variant should be all covered by within the scope of protection of the claims of the present invention.
Claims (6)
1. a kind of logic encryption card offline transaction data reconstruction method, which is characterized in that is stored in the logic encryption card is de-
Machine transaction data includes off line balance information and at least one offline transaction managing detailed catalogue, and the off line balance information includes off line
Remaining sum and its check code, the offline transaction managing detailed catalogue include offline transaction detail record and its check code, and the off line is handed over
Easy detail record includes remaining sum and turnover before transaction serial number, transaction, and the data reconstruction method includes:
Read the off line balance information and the nearest one offline transaction managing detailed catalogue in the logic encryption card；
Verify the off line balance information and the respective check code of a nearest offline transaction managing detailed catalogue；
According to check results, handed over by the off line remaining sum and a nearest off line of the mutually redundant off line balance information
The offline transaction detail record of easy managing detailed catalogue carries out data recovery to the logic encryption card；Wherein, when check results are institutes
When stating check code and verifying successfully, the off line remaining sum whether the transaction with a nearest offline transaction detail record
It is identical that preceding remaining sum subtracts the value obtained after turnover, and when the off line remaining sum and a nearest offline transaction detail record
Transaction before remaining sum when subtracting the value difference obtained after turnover, delete the nearest off line in the logic encryption card
Transaction details record；When check results be the off line remaining sum verification code check failure and a nearest offline transaction is bright
When the verification code check success carefully recorded, it will be patrolled described in remaining sum replacement before the transaction of a nearest offline transaction detail record
The off line remaining sum in encrypted card is collected, and deletes the nearest offline transaction detail note in the logic encryption card
Record；When check results are the schools of the verification code check success of the off line remaining sum and a nearest offline transaction detail record
When testing code check failure, the nearest offline transaction detail record in the logic encryption card is deleted.
2. a kind of offline transaction method of logic encryption card, which is characterized in that the offline transaction number of the logic encryption card storage
According to include off line balance information and at least one offline transaction managing detailed catalogue, the off line balance information include off line remaining sum and its
Check code, the offline transaction managing detailed catalogue include offline transaction detail record and its check code, the offline transaction method packet
It includes:
Data reconstruction method according to claim 1 carries out data recovery to the logic encryption card；
Current offline transaction managing detailed catalogue is added in the logic encryption card；
Update the off line balance information in the logic encryption card.
3. offline transaction method as claimed in claim 2, which is characterized in that the offline transaction detail of the logic encryption card is believed
The maximum recordable number of breath is N, described that current offline transaction managing detailed catalogue is added in the logic encryption card, comprising:
When current offline transaction is X offline transaction, N offline transaction of X remainder is stored in the logic encryption card
Current offline transaction managing detailed catalogue is added on the position of managing detailed catalogue.
4. a kind of logic encryption card offline transaction Data Recapture Unit, which is characterized in that is stored in the logic encryption card is de-
Machine transaction data includes off line balance information and at least one offline transaction managing detailed catalogue, and the off line balance information includes off line
Remaining sum and its check code, the offline transaction managing detailed catalogue include offline transaction detail record and its check code, and the off line is handed over
Easy detail record includes remaining sum and turnover before transaction serial number, transaction, and the Data Recapture Unit includes:
Read module, for reading the off line balance information in the logic encryption card and the nearest one offline transaction detail
Information；
Correction verification module, for verifying the off line balance information and the respective verification of a nearest offline transaction managing detailed catalogue
Code；
Data recovery module, for according to check results, by the off line remaining sum of the mutually redundant off line balance information and
The offline transaction detail record of a nearest offline transaction managing detailed catalogue carries out data recovery to the logic encryption card；Its
In, when check results are that the check code verifies successfully, the off line remaining sum whether with a nearest off line
It is identical to subtract the value obtained after turnover for remaining sum before the transaction of transaction details record, and works as the off line remaining sum and described nearest one
When remaining sum subtracts the value difference obtained after turnover before the transaction of offline transaction detail record, delete in the logic encryption card
A nearest offline transaction detail record；When check results be the off line remaining sum verification code check failure and it is described
When the verification code check success of a nearest offline transaction detail record, by the friendship of a nearest offline transaction detail record
Easily before remaining sum replace the off line remaining sum in the logic encryption card, and delete in the logic encryption card described nearest one
Offline transaction detail record；When the verification code check that check results are the off line remaining sums succeeds and a nearest off line
When the verification code check failure of transaction details record, the nearest offline transaction detail in the logic encryption card is deleted
Record.
5. a kind of offline transaction device of logic encryption card, which is characterized in that the offline transaction number of the logic encryption card storage
According to include off line balance information and at least one offline transaction managing detailed catalogue, the off line balance information include off line remaining sum and its
Check code, the offline transaction managing detailed catalogue include offline transaction detail record and its check code, the offline transaction device packet
It includes:
Data recovery module carries out data to the logic encryption card for data reconstruction method according to claim 1
Restore；
Transaction details adding module, for adding current offline transaction managing detailed catalogue in the logic encryption card；
Balance updates module, for updating the off line balance information in the logic encryption card.
6. offline transaction device as claimed in claim 5, which is characterized in that the offline transaction detail of the logic encryption card is believed
The maximum recordable number of breath is N, and the transaction details adding module is also used to:
When current offline transaction is X offline transaction, N offline transaction of X remainder is stored in the logic encryption card
Current offline transaction detail record is added on the position of managing detailed catalogue.
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| CN201310722699.8A CN103646467B (en) | 2013-12-24 | 2013-12-24 | A kind of logic encryption card offline transaction data processing method and device |
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| CN201310722699.8A CN103646467B (en) | 2013-12-24 | 2013-12-24 | A kind of logic encryption card offline transaction data processing method and device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107239357B (en) * | 2017-05-27 | 2019-11-29 | 百富计算机技术（深圳）有限公司 | Offline transaction record storing method, device, computer equipment and storage medium |
| CN112347110B (en) * | 2019-08-07 | 2024-03-15 | 腾讯科技（深圳）有限公司 | Data difference determining method, device, equipment and storage medium |
| CN114244635B (en) * | 2022-02-25 | 2022-08-19 | 深圳市华方信息产业有限公司 | Encryption type data coding method of communication equipment |
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