CN103646467A - Off-line transaction data processing method and device of logic encryption card - Google Patents
Off-line transaction data processing method and device of logic encryption card Download PDFInfo
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- CN103646467A CN103646467A CN201310722699.8A CN201310722699A CN103646467A CN 103646467 A CN103646467 A CN 103646467A CN 201310722699 A CN201310722699 A CN 201310722699A CN 103646467 A CN103646467 A CN 103646467A
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Abstract
The invention provides an off-line transaction data processing method of a logic encryption card, which comprises the steps that off-line balance information and recent off-line transaction detail information are read, wherein the off-line balance information and the recent off-line transaction detail information comprise check codes; whether the check codes of the off-line balance information and the recent off-line transaction detail information are correct is checked; and data recovery processing is performed according to a check result. The invention further provides an off-line transaction data processing device of the logic encryption card. With the adoption of the technical scheme, purposes of off-line historical transaction information query, balance backup and data damage prevention due to card extraction are achieved under the condition that a storage space of the logic encryption card is not required to be occupied additionally.
Description
Technical field
The present invention relates to integrated circuit card technical field, relate in particular to a kind of logic encryption card offline transaction data processing method and device.
Background technology
Integrated circuit card (IC-card, Integrated Circuit Card) also claim smart card or smart card, is the another kind of information carrier occurring after magnetic card.At present, on market, common IC-card is CPU card and logic encryption card.Wherein, the operating system of the embedded special use of CPU card, can guarantee that the data integrity in offline transaction process is processed; And logic encryption card does not contain built-in transaction data integrality processing, logical encrypt is stuck in the memory function that Transaction Information is just simply provided in whole process of exchange, direct read/write flash memory (Flash Memory) or EEPROM (Electrically Erasable Programmable Read Only Memo) (EEPROM when storing, data are only provided, Electrically Erasable Programmable Read-Only Memory) mode, when making to pull out in advance card or departing from induction zone in offline transaction link, easily cause card transaction data imperfect, the balance amount information mistake that even causes card to preserve.When there is power-off, need terminal its relevant information to be safeguarded and the operation such as recovery completely.Due to historical reasons and the higher original system upgrading cost that causes of CPU card price larger, logical encrypt is stuck in the non-financial fields such as public utilities, member card, prepaid card and is used in a large number always, also will exist from now on.The integrity issue of data storage when this just need to find a kind of method and solves logic encryption card offline transaction, is stuck in logical encrypt to become popular high performance-price ratio under limited safe prerequisite to select.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of logic encryption card offline transaction data processing method and device have been proposed, by mechanism such as data redundancy and state machines, in card operating process, automatically carry out the integrity checking of card data, and automatically complete data recovery when data are damaged.
In one aspect, the invention provides a kind of logic encryption card offline transaction data processing method, comprise the following steps:
Read off line balance amount information and nearest offline transaction managing detailed catalogue, described off line balance amount information and described nearest offline transaction managing detailed catalogue all comprise check code;
Check that whether described off line balance amount information and described nearest offline transaction managing detailed catalogue check code be separately correct, according to check result, carry out data recovery process.
Described off line balance amount information comprises off line remaining sum, and described offline transaction managing detailed catalogue comprises transaction sequence number, the front remaining sum of transaction and turnover.
If the check code of described off line balance amount information and described nearest offline transaction managing detailed catalogue is all correct, to deduct the value obtaining after turnover identical with remaining sum before described transaction continue to check described off line remaining sum, when described off line remaining sum and remaining sum before described transaction deduct the value obtaining after turnover when different, delete described nearest offline transaction managing detailed catalogue.
If the check code of the incorrect and described last sale managing detailed catalogue of the check code of described off line balance amount information is correct, remaining sum before described transaction is replaced to described off line remaining sum, repaired the described nearest offline transaction managing detailed catalogue of rear deletion.
If the check code of the correct and described last sale managing detailed catalogue of the check code of described off line balance amount information is incorrect, delete described nearest offline transaction managing detailed catalogue.
Described method also comprises: while carrying out offline transaction, first add current offline transaction managing detailed catalogue at every turn, upgrade described off line balance amount information after having added.
The current offline transaction managing detailed catalogue of described interpolation is specially, by transaction sequence number, search described nearest offline transaction managing detailed catalogue, described current offline transaction managing detailed catalogue is placed on the position of x remainder n, the transaction sequence number that wherein x is current offline transaction, n is that logic encryption card maximum can record number.
In yet another aspect, the invention provides a kind of logic encryption card offline transaction data processing equipment, comprising:
Read module, for reading off line balance amount information and nearest offline transaction managing detailed catalogue, described off line balance amount information and described nearest offline transaction managing detailed catalogue all comprise check code;
Checking module, whether correct for checking described off line balance amount information and described nearest offline transaction managing detailed catalogue check code separately;
Recover module, for carrying out data recovery process according to the check result of described checking module.
Described read module is for reading the off line remaining sum of described off line balance amount information and the transaction sequence number of described offline transaction managing detailed catalogue, the front remaining sum of transaction and turnover.
Described recovery module is for when the check code of described off line balance amount information and described nearest offline transaction managing detailed catalogue is all correctly time, to deduct the value obtaining after turnover identical with remaining sum before described transaction to check described off line remaining sum, when described off line remaining sum and remaining sum before described transaction deduct the value obtaining after turnover when different, delete described nearest offline transaction managing detailed catalogue.
When described recovery module is correct for the check code when the incorrect and described last sale managing detailed catalogue of check code of described off line balance amount information, remaining sum before described transaction is replaced to described off line remaining sum, repaired the described nearest offline transaction managing detailed catalogue of rear deletion.
When described recovery module is incorrect for the check code when the correct and described last sale managing detailed catalogue of check code of described off line balance amount information, delete described nearest offline transaction managing detailed catalogue.
Described device also comprises: update module, add current offline transaction managing detailed catalogue when carrying out offline transaction at every turn, and after having added, upgrade described off line balance amount information.
Described update module is searched described nearest offline transaction managing detailed catalogue by transaction sequence number, described current offline transaction managing detailed catalogue is placed on the position of x remainder n, and the transaction sequence number that wherein x is current offline transaction, n is that logic encryption card maximum can record number.
The present invention is standby mutually by utilizing historical offline transaction managing detailed catalogue to carry out transactions balances information, adopt technical scheme of the present invention, do not need additionally to take the interior storage space of card of logic encryption card, when meeting off line query history Transaction Information, reached again remaining sum backup and prevented from pulling out the object that card causes data breakage.
Accompanying drawing explanation
Specific embodiments of the invention are described below with reference to accompanying drawings, wherein:
Fig. 1 shows the process flow diagram of embodiment of the present invention logic encryption card offline transaction data processing method;
Fig. 2 shows the structural representation of embodiment of the present invention logic encryption card offline transaction data processing equipment.
Embodiment
In order to make technical scheme of the present invention and advantage clearer, below in conjunction with accompanying drawing, exemplary embodiment of the present invention is described in more detail, obviously, described embodiment is only a part of embodiment of the present invention, rather than all embodiment's is exhaustive.
The present invention proposes a kind of logic encryption card offline transaction data processing method and device, is to be stuck in the method for under offline transaction scene, offline transaction data being carried out stores processor for logical encrypt.Wherein, offline transaction refers to transaction system and consumes or supplement with money according to the built-in electronic purse balance amount information of card, and the more behavior of the interior remaining sum of neocaine.
The embodiment of the present invention provides a kind of logic encryption card offline transaction data processing method, and Fig. 1 shows the method flow diagram of the method, specifically comprises the following steps:
S101, read off line balance amount information and nearest offline transaction managing detailed catalogue.
In the embodiment of the present invention, the card internal data structure of logic encryption card can complete in the card personalization stage, comprised the operations such as offline transaction data on establishment and initialized card.
Offline transaction data structure comprises off line balance amount information and these two regions of offline transaction managing detailed catalogue.Wherein, off line balance amount information comprises off line remaining sum, check code etc.; Offline transaction managing detailed catalogue can be comprised of a plurality of records, and every record comprises transaction sequence number, the front remaining sum of transaction, type of transaction, turnover, check code etc., and transaction sequence number is generally by digital 1 open numbering.
In carrying out offline transaction process, while relating to more on neocaine information operating (being also writing operation), must follow and first add the principle of upgrading off line balance amount information after offline transaction managing detailed catalogue, can guarantee like this just in case write card crash, only can cause that transaction details is invalid or remaining sum is invalid, and there will not be the situation that simultaneously causes all information invalid.
The judgement effectively mode of record is that transaction sequence number is for the check code of sky and current record is incorrect.
Wherein, check code is for the data integrity of verification place record, can adopt cyclic redundancy check (CRC) (CRC, Cyclic Redundancy Check) mode, also can adopt other verification modes, and the present invention is not restricted this.
S102, before logic encryption card off line inquiry or offline transaction, check off line balance amount information and whether offline transaction managing detailed catalogue check code separately correct recently, and carry out data recovery process according to check results.Concrete data recovery process is operating as:
1) if off line balance amount information and the recently check results of offline transaction managing detailed catalogue are verification succeeds, further checking whether off line remaining sum mates with the remaining sum in nearest offline transaction managing detailed catalogue, is also that to deduct the value obtaining after turnover identical with remaining sum before transaction in nearest offline transaction managing detailed catalogue for off line remaining sum in off line balance amount information.If identical, think that the interior data of card of logic encryption card are correct, can carry out offline transaction next time or return to reading of content; Otherwise, delete nearest offline transaction managing detailed catalogue, complete data recovery process.
2) the last sale managing detailed catalogue verification succeeds if the verification of off line balance amount information is failed, repair off line balance amount information, before being about to the transaction in nearest offline transaction detail, remaining sum is replaced the off line remaining sum in off line balance amount information, after repairing, delete nearest offline transaction managing detailed catalogue, complete data recovery process.
3) if off line balance amount information verification succeeds and recently offline transaction managing detailed catalogue verification failure, the direct nearest offline transaction managing detailed catalogue of deletion, completes data recovery process.
The interior data of card of confirming logic encryption card are correct, if this is to inquire about the inspection of initiation based on user, return to user's Query Result; If this is the inspection of initiating before need to again there is offline transaction, confirm can carry out offline transaction next time after data correctly.
The logic encryption card offline transaction data processing method that the embodiment of the present invention provides also comprises:
After S103, data recovery process complete, carry out offline transaction, during each offline transaction, first add current offline transaction managing detailed catalogue, after having added, upgrade again off line balance amount information.
While carrying out offline transaction, by transaction sequence number, search nearest offline transaction detailed at every turn, after nearest offline transaction detail, add current offline transaction detailed, final updating off line balance amount information.
Due to the finite capacity of logic encryption card, in the embodiment of the present invention, offline transaction managing detailed catalogue adopts cycle index mode.Suppose that it is n that maximum can record number,, when there is x offline transaction, x offline transaction managing detailed catalogue can leave on the position of x remainder n.When practical application, system is before depositing offline transaction managing detailed catalogue, record that can be by searching the sequence number maximum of concluding the business in offline transaction managing detailed catalogue is as nearest offline transaction, thereby determine the transaction sequence number of current offline transaction, and current offline transaction managing detailed catalogue is followed closely after nearest offline transaction detail record and deposited.If recently offline transaction managing detailed catalogue leaves rearmost position in, explanation has reached dominant record number so, and current offline transaction detail being unrolled to recording number is that deposit 1 position.
While pulling out card in offline transaction process, may cause record data damaged, the card that pulls out of below enumerating three time points operates:
1) when adding offline transaction detail, pull out card, at this moment can cause offline transaction detailed data imperfect.
2) in the operating clearance of having added offline transaction detail, preparation renewal off line remaining sum, pull out card, at this moment can cause the front remaining sum of transaction of nearest offline transaction detail not mate with off line remaining sum,, do not meet " remaining sum=off line remaining sum-nearest offline transaction volume before offline transaction recently " yet.
3) when upgrading off line remaining sum, pull out card, at this moment can cause the data of off line balance amount information imperfect.
The logic encryption card offline transaction data processing method that the embodiment of the present invention provides, standby mutually by utilizing historical transactional information to carry out transactions balances information, do not need additionally to take the interior storage space of card of logic encryption card, when meeting off line query history Transaction Information, reached again remaining sum backup and prevented from pulling out the object that card causes data breakage.
Based on same inventive concept, the embodiment of the present invention also provides a kind of logic encryption card offline transaction data processing equipment, and its structural representation as shown in Figure 2, specifically comprises:
Read module 201, for reading off line balance amount information and nearest offline transaction managing detailed catalogue.Off line balance amount information and recently offline transaction managing detailed catalogue all include respectively check code.
Offline transaction data structure on logic encryption card comprises off line balance amount information and offline transaction managing detailed catalogue two parts, can to data structure, create at logic encryption card initial phase and individualized setting.Wherein, off line balance amount information comprises off line remaining sum, check code etc.; Offline transaction managing detailed catalogue can be comprised of a plurality of records, and each is recorded as a transaction details, comprises transaction sequence number, the front remaining sum of transaction, type of transaction, turnover, check code etc.
Checking module 202, whether correct with nearest offline transaction managing detailed catalogue check code separately for checking off line balance amount information.
When off line balance amount information and the check results of nearest offline transaction managing detailed catalogue are verification succeeds, recovering module 203 checks off line remaining sum in off line balance amount informations to deduct the value that turnover obtains later identical with remaining sum before the transaction of nearest offline transaction managing detailed catalogue, if identical, think that the interior data of card of logic encryption card are correct, can carry out offline transaction next time or return to reading of content; Otherwise, recover module 203 and delete nearest offline transaction managing detailed catalogue, complete data recovery process.
When off line balance amount information verification failure and during last sale managing detailed catalogue verification succeeds, recover module 203 for repairing off line balance amount information, before being about to the transaction in nearest offline transaction detail, remaining sum is replaced the off line remaining sum in off line balance amount information, after replacement completes, the nearest offline transaction managing detailed catalogue of deletion, completes data recovery process.
When off line balance amount information verification succeeds, during recently offline transaction managing detailed catalogue verification failure, recover module 203 for deleting nearest offline transaction managing detailed catalogue, complete data recovery process.
The logic encryption card offline transaction data processing equipment that the embodiment of the present invention proposes also comprises:
Update module 204, for upgrade the data on logic encryption card at every turn when there is offline transaction.Be specially update module 204 and first add current offline transaction managing detailed catalogue, after having added, upgrade again off line balance amount information.
Logic encryption card offline transaction data processing method and device that the embodiment of the present invention provides, by utilizing historical transactional information to back up mutually transactions balances information, also be, utilize the principle that in offline transaction managing detailed catalogue, before transaction, remaining sum should equate with the off line remaining sum numerical value in off line balance amount information with the difference of turnover, realize the interior storage space of card that does not need additionally to take logic encryption card, when meeting off line query history Transaction Information, reached again remaining sum backup and prevented from pulling out the object that card causes data breakage.
Above embodiment is only in order to technical scheme of the present invention to be described, but not is limited.Therefore,, in the situation that not deviating from spirit of the present invention and essence thereof, those skilled in the art can make various changes, replacement and modification.Obviously, but within these changes, replacement and modification all should be covered by the protection domain of the claims in the present invention.
Claims (14)
1. a logic encryption card offline transaction data processing method, is characterized in that, comprises the following steps:
Read off line balance amount information and nearest offline transaction managing detailed catalogue, described off line balance amount information and described nearest offline transaction managing detailed catalogue all comprise check code;
Check that whether described off line balance amount information and described nearest offline transaction managing detailed catalogue check code be separately correct, according to check result, carry out data recovery process.
2. logic encryption card offline transaction data processing method as claimed in claim 1, is characterized in that, described off line balance amount information comprises off line remaining sum, and described offline transaction managing detailed catalogue comprises transaction sequence number, the front remaining sum of transaction and turnover.
3. logic encryption card offline transaction data processing method as claimed in claim 2, it is characterized in that, if the check code of described off line balance amount information and described nearest offline transaction managing detailed catalogue is all correct, to deduct the value obtaining after turnover identical with remaining sum before described transaction continue to check described off line remaining sum, when described off line remaining sum and remaining sum before described transaction deduct the value obtaining after turnover when different, delete described nearest offline transaction managing detailed catalogue.
4. logic encryption card offline transaction data processing method as claimed in claim 2, it is characterized in that, if the check code of the incorrect and described last sale managing detailed catalogue of the check code of described off line balance amount information is correct, remaining sum before described transaction is replaced to described off line remaining sum, repaired the described nearest offline transaction managing detailed catalogue of rear deletion.
5. logic encryption card offline transaction data processing method as claimed in claim 2, it is characterized in that, if the check code of the correct and described last sale managing detailed catalogue of the check code of described off line balance amount information is incorrect, delete described nearest offline transaction managing detailed catalogue.
6. the logic encryption card offline transaction data processing method as described in as arbitrary in claim 2 to 5, it is characterized in that, described method also comprises: while carrying out offline transaction, first add current offline transaction managing detailed catalogue at every turn, upgrade described off line balance amount information after having added.
7. logic encryption card offline transaction data processing method as claimed in claim 6, it is characterized in that, the current offline transaction managing detailed catalogue of described interpolation is specially, by transaction sequence number, search described nearest offline transaction managing detailed catalogue, described current offline transaction managing detailed catalogue is placed on the position of x remainder n, the transaction sequence number that wherein x is current offline transaction, n is that logic encryption card maximum can record number.
8. a logic encryption card offline transaction data processing equipment, is characterized in that, comprising:
Read module, for reading off line balance amount information and nearest offline transaction managing detailed catalogue, described off line balance amount information and described nearest offline transaction managing detailed catalogue all comprise check code;
Checking module, whether correct for checking described off line balance amount information and described nearest offline transaction managing detailed catalogue check code separately;
Recover module, for carrying out data recovery process according to the check result of described checking module.
9. logic encryption card offline transaction data processing equipment as claimed in claim 8, it is characterized in that, described read module is for reading the off line remaining sum of described off line balance amount information and the transaction sequence number of described offline transaction managing detailed catalogue, the front remaining sum of transaction and turnover.
10. logic encryption card offline transaction data processing equipment as claimed in claim 9, it is characterized in that, described recovery module is for when the check code of described off line balance amount information and described nearest offline transaction managing detailed catalogue is all correctly time, to deduct the value obtaining after turnover identical with remaining sum before described transaction to check described off line remaining sum, when described off line remaining sum and remaining sum before described transaction deduct the value obtaining after turnover when different, delete described nearest offline transaction managing detailed catalogue.
11. logic encryption card offline transaction data processing equipments as claimed in claim 9, it is characterized in that, when described recovery module is correct for the check code when the incorrect and described last sale managing detailed catalogue of check code of described off line balance amount information, remaining sum before described transaction is replaced to described off line remaining sum, repaired the described nearest offline transaction managing detailed catalogue of rear deletion.
12. logic encryption card offline transaction data processing equipments as claimed in claim 9, it is characterized in that, when described recovery module is incorrect for the check code when the correct and described last sale managing detailed catalogue of check code of described off line balance amount information, delete described nearest offline transaction managing detailed catalogue.
13. logic encryption card offline transaction data processing equipments as described in as arbitrary in claim 9 to 12, it is characterized in that, described device also comprises: update module, add current offline transaction managing detailed catalogue when carrying out offline transaction at every turn, and after having added, upgrade described off line balance amount information.
14. logic encryption card offline transaction data processing equipments as claimed in claim 13, it is characterized in that, described update module is searched described nearest offline transaction managing detailed catalogue by transaction sequence number, described current offline transaction managing detailed catalogue is placed on the position of x remainder n, the transaction sequence number that wherein x is current offline transaction, n is that logic encryption card maximum can record number.
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| CN103646467B (en) | 2019-07-23 |
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