CN103294569A - COS version check method and check device of intelligent card - Google Patents
COS version check method and check device of intelligent card Download PDFInfo
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Abstract
The invention provides a COS (Chip Operating System) version check method and a check device of an intelligent card. The COS version check method of the intelligent card comprises the steps of dividing COS data of the intelligent card into at least two data blocks, determining a check code of each data block with a built-in check algorithm of the intelligent card and a preset initial value, and checking a COS version of the intelligent card according to the check codes of the data blocks and a check code of COS data of the intelligent card. The invention further provides the COS version check device of the intelligent card. According to the COS version check method and the check device of the intelligent card, the COS data of the intelligent card is divided into the data blocks, and the check codes of the data blocks are compared with the check code of the COS data, so that the COS version of the intelligent card can be checked effectively.
Description
Technical field
The present invention relates to version verification field, more particularly, relate to a kind of COS edition correcting method and calibration equipment of smart card.
Background technology
Along with development of science and technology, increasing people uses smart card to carry out small amount payment, as mass transit card, and purchase card etc.Smart card is the CPU card again, is integrated with central processing unit, programmable read only memory, random access memory in the smart card and is solidificated in COS(Chip Operating System in the ROM (read-only memory), card internal operating system or smart card system).This COS has following function: transfer management, file management, security system and command interpretation etc.
Data in the smart card are divided into outside reading section and inter-process part, reliable in order to ensure the data security in the smart card, the COS data of smart card are set to the inter-process partial data, and the outside is the data that can't read this part under the normal condition.
In order to guarantee the consistance of smart card COS version, smart card can provide the verifying function of COS version (generally to adopt CRC sign indicating number (cyclic redundancy check (CRC) code, Cyclic Redundancy Check) carries out verification), but this checking algorithm also can't read, cause like this if any the people by distorting the checking algorithm of COS data and COS version simultaneously, make that the CRC sign indicating number of CRC sign indicating number when not distorting of the final COS version that generates is identical, the user just can't find that the COS data of smart card are distorted by the people like this.
So, be necessary to provide a kind of COS edition correcting method and calibration equipment of smart card, to solve the existing in prior technology problem.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of COS edition correcting method of smart card, can not carry out the technical matters of effective verification to the COS data of smart card with the COS edition correcting method that solves existing smart card.
The purpose of the embodiment of the invention is to provide a kind of COS version check device of smart card, can not carry out the technical matters of effective verification to the COS data of smart card with the COS version check device that solves existing smart card.
For addressing the above problem, technical scheme provided by the invention is as follows:
A kind of COS edition correcting method of smart card is provided, and it comprises step:
The COS data of smart card are divided at least two data blocks;
Use the built-in checking algorithm of described smart card and preset initial value to determine the check code of each described data block; And
According to the check code of the COS data of the check code of described data block and described smart card, the COS version of described smart card is carried out verification.
In the COS of smart card of the present invention edition correcting method, the checking algorithm that the described smart card of described use is built-in and preset initial value determine that the step of the check code of each described data block comprises:
Use the built-in checking algorithm of described smart card and preset initial value to determine the check code of first data block; And
Use the check code of the built-in checking algorithm of described smart card and described data block to determine the check code of next data block, until the check code of determining last data block;
Described according to described data block check code and the check code of the COS data of described smart card, the step of the COS version of described smart card being carried out verification is specially:
According to the check code of the COS data of the check code of described last data block and described smart card, the COS version of described smart card is carried out verification.
In the COS of smart card of the present invention edition correcting method, use the built-in checking algorithm of described smart card and described preset initial value to determine the check code of the COS data of described smart card.
In the COS of smart card of the present invention edition correcting method, described according to described last data block check code and the check code of the COS data of described smart card, the step of the COS version of described smart card being carried out verification is specially:
The check code of last data block is identical with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is normal;
The check code of last data block is different with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is unusual.
In the COS of smart card of the present invention edition correcting method, the step that described COS data with smart card are divided at least two data blocks is specially:
According to the application in the described smart card, the COS data of smart card are divided at least two data blocks.
A kind of COS version check device of smart card also is provided, and it comprises:
Divide module, be used for the COS data of smart card are divided at least two data blocks;
Data block check code determination module is used for the check code that uses the built-in checking algorithm of described smart card and preset initial value to determine each described data block; And
System data verification module is used for the check code according to the COS data of the check code of described data block and described smart card, and the COS version of described smart card is carried out verification.
In the COS of smart card of the present invention version check device, described block check sign indicating number determination module comprises:
The first data block check code determining unit is used for the check code that uses the built-in checking algorithm of described smart card and preset initial value to determine first data block; And
The second data block check code determining unit, the check code that is used for the built-in checking algorithm of the described smart card of use and described data block is determined the check code of next data block, until the check code of determining last data block;
Described system data verification module comprises:
Verification unit is used for the check code according to the COS data of the check code of described last data block and described smart card, and the COS version of described smart card is carried out verification.
In smart card system version check device of the present invention, described system data verification module uses the built-in checking algorithm of described smart card and described preset initial value to determine the check code of the COS data of described smart card.
In smart card system version check device of the present invention, described verification unit specifically is used for:
The check code of last data block is identical with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is normal;
The check code of last data block is different with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is unusual.
In smart card system version check device of the present invention, described division module specifically is used for:
According to the application in the described smart card, the COS data of smart card are divided at least two data blocks.
COS edition correcting method and calibration equipment compared to the smart card of prior art, the COS edition correcting method of smart card of the present invention and calibration equipment are divided into a plurality of data blocks by the COS data with smart card, comparison by to the check code of the check code of a plurality of data blocks and COS data realizes the COS version of smart card is carried out effective verification.Solved the technical matters that the COS version check device of existing smart card can not carry out effective verification to the COS data of smart card.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the process flow diagram of first preferred embodiment of the COS edition correcting method of smart card of the present invention;
Fig. 2 is the process flow diagram of second preferred embodiment of the COS edition correcting method of smart card of the present invention;
Fig. 3 is the structural representation of first preferred embodiment of the COS version check device of smart card of the present invention;
Fig. 4 is the structural representation of second preferred embodiment of the COS version check device of smart card of the present invention.
Embodiment
Below in conjunction with diagram, the preferred embodiments of the present invention are described in detail.
Please refer to Fig. 1, Fig. 1 is the process flow diagram of first preferred embodiment of the COS edition correcting method of smart card of the present invention.The COS edition correcting method of the smart card of this preferred embodiment comprises:
Step S101 is divided at least two data blocks with the COS data of smart card;
Step S102, the check code that uses the built-in checking algorithm of smart card and preset initial value to determine each data block;
Step S103 according to the check code of the COS data of the check code of data block and smart card, carries out verification to the COS version of smart card;
The COS edition correcting method of the smart card of this preferred embodiment ends at step S103.
Describe the idiographic flow of each step of COS edition correcting method of the smart card of this preferred embodiment below in detail.
In step S101, the COS data of smart card are divided at least two data blocks, so that the follow-up calculating of each data block being carried out check code respectively.Quantity and position that data block is divided can be determined as required.Here preferably according to the application in the smart card, the COS data of smart card are divided, the data block after namely each is divided comprises the application that at least one is complete.Because the application service provider only is concerned about generally whether the application of its exploitation is distorted, therefore by using the COS data are divided, make things convenient for the application service provider that verification is carried out in the application of its exploitation separately.
Execution in step S102 subsequently.
In step S102, use the check code of each data block that generates among the built-in checking algorithm of smart card and the preset initial value determining step S101, here the verification personnel can't directly read the built-in checking algorithm of smart card, can only use built-in checking algorithm and the preset initial value of smart card to carry out the calculating of check code, built-in checking algorithm as COS data and smart card is distorted, though the check code of the COS data of smart card does not change, but the check code of data block can change, thereby can make the user know whether the COS data of the smart card of its use are distorted.
Execution in step S103 subsequently.
In step S103, use built-in checking algorithm and the preset initial value of smart card directly to settle accounts the check code of the COS data of whole smart card, check code with each data block of determining among the check code of the COS data of whole smart card and the step S102 compares then, finishes the verification of the COS version of smart card.
So namely finished the checking procedure of the COS version of whole smart card.
The COS edition correcting method of the smart card of this preferred embodiment is divided into a plurality of data blocks by the COS data with smart card, comparison by to the check code of the check code of a plurality of data blocks and COS data realizes the COS version of smart card is carried out effective verification.
Please refer to Fig. 2, Fig. 2 is the process flow diagram of second preferred embodiment of the COS edition correcting method of smart card of the present invention.The COS edition correcting method of the smart card of this preferred embodiment comprises:
Step S201 is divided at least two data blocks with the COS data of smart card;
Step S202, the check code that uses the built-in checking algorithm of smart card and preset initial value to determine first data block;
Step S203, the checking algorithm that the use smart card is built-in and the check code of data block are determined the check code of next data block, until the check code of determining last data block;
Step S204 according to the check code of the COS data of the check code of last data block and smart card, carries out verification to the COS version of smart card;
The COS edition correcting method of the smart card of this preferred embodiment ends at step S204.
Describe the idiographic flow of each step of COS edition correcting method of the smart card of this preferred embodiment below in detail.
In step S201, the COS data of smart card are divided at least two data blocks, so that the follow-up calculating of each data block being carried out check code respectively.Quantity and position that data block is divided can be determined as required.Here preferably according to the application in the smart card, the COS data of smart card are divided, the data block after namely each is divided comprises the application that at least one is complete.Because the application service provider only is concerned about generally whether the application of its exploitation is distorted, therefore by using the COS data are divided, make things convenient for the application service provider that verification is carried out in the application of its exploitation separately.
Execution in step S202 subsequently.
In step S202, use the check code of first data block that generates among the built-in checking algorithm of smart card and the preset initial value determining step S201, here the verification personnel can't directly read the built-in checking algorithm of smart card, can only use the built-in checking algorithm of smart card and preset initial value to carry out the calculating of check code.
Execution in step S203 subsequently.
In step S203, the checking algorithm that the use smart card is built-in and the check code of data block are determined the check code of next data block, be specially the check code of first data block that will calculate among the step S202 as the initial value of second data block, use the initial value of the built-in checking algorithm of smart card and second data block to determine the check code of second data block then; With the check code of second data block initial value as the 3rd data block, the initial value that re-uses the built-in checking algorithm of smart card and the 3rd data block is determined the check code of the 3rd data block subsequently; The rest may be inferred, determines the check code of last data block.
Execution in step S204 subsequently.
In step S204, use built-in checking algorithm and the preset initial value of smart card directly to settle accounts the check code of the COS data of whole smart card, check code with last data block of determining among the check code of the COS data of whole smart card and the step S203 compares then, check code as last data block is identical with the check code of the COS data of smart card, determines that then the COS version of smart card is normal; Check code as last data block is different with the check code of the COS data of smart card, determines that then the COS version of smart card is unusual.
So namely finished the checking procedure of the COS version of whole smart card.
The COS edition correcting method of the smart card of this preferred embodiment is divided into a plurality of data blocks by the COS data with smart card, and compare by the final check code of a plurality of data blocks and the check code of COS data, realize the COS version of smart card is carried out effective verification.
The present invention also provides a kind of COS version check device of smart card.Please refer to Fig. 3, Fig. 3 is the structural representation of first preferred embodiment of the COS version check device of smart card of the present invention.The COS version check device 30 of the smart card of this preferred embodiment comprises divides module 31, data block check code determination module 32 and system data verification module 33.Wherein dividing module 31 is used for the COS data of smart card are divided at least two data blocks; Data block check code determination module 32 is for the check code that uses the built-in checking algorithm of smart card and preset initial value to determine each data block; System data verification module 33 is used for the check code according to the COS data of the check code of data block and smart card, and the COS version of smart card is carried out verification.
When the COS version check device 30 of the smart card of this preferred embodiment uses, at first divide module 31 the COS data of smart card are divided at least two data blocks, the check code that subsequent data block check sign indicating number determination module 32 uses the built-in checking algorithm of smart cards and preset initial value to determine each data block; Final system data check module 33 is according to the check code of the COS data of the check code of data block and smart card, and the COS version of smart card is carried out verification.
The description of first preferred embodiment of the COS edition correcting method of the concrete use of the COS version check device 30 of the smart card of this preferred embodiment and above-mentioned smart card is same or similar, specifically sees also the associated description in first preferred embodiment of COS edition correcting method of above-mentioned smart card.
The COS version check device of the smart card of this preferred embodiment is divided into a plurality of data blocks by the COS data with smart card, comparison by to the check code of the check code of a plurality of data blocks and COS data realizes the COS version of smart card is carried out effective verification.
Please refer to Fig. 4, Fig. 4 is the structural representation of second preferred embodiment of the COS version check device of smart card of the present invention.The COS version check device 40 of this preferred embodiment comprises divides module 41, data check sign indicating number determination module 42 and system data verification module 43.Wherein dividing module 41 is used for the COS data of smart card are divided at least two data blocks; Data block check code determination module 42 is for the check code that uses the built-in checking algorithm of smart card and preset initial value to determine each data block; System data verification module 43 is used for the check code according to the COS data of the check code of data block and smart card, and the COS version of smart card is carried out verification.
The data block check code determination module 42 of this preferred embodiment also comprises the first data block check code determining unit 421 and the second numeric data code determining unit 422; System data verification module 43 comprises verification unit 431.The first data block check code determining unit 421 is for the check code that uses the built-in checking algorithm of smart card and preset initial value to determine first data block; The second data block check code determining unit 422 is used for using the check code of the built-in checking algorithm of smart card and data block to determine the check code of next data block, until the check code of determining last data block; Verification unit 431 is used for the check code according to the COS data of the check code of last data block and smart card, and the COS version of smart card is carried out verification.
When the COS version check device 40 of the smart card of this preferred embodiment uses, at first divide module 41 the COS data of smart card are divided at least two data blocks; The check code that the first data block check code determining unit 421 of subsequent data block check sign indicating number determination module 42 uses the built-in checking algorithm of smart card and preset initial value to determine first data block; The second data block check code determining unit 422 of data block check code determination module 42 uses the check code of the built-in checking algorithm of smart card and data block to determine the check code of next data block then, until the check code of determining last data block; The verification unit 431 of final system data check module 43 is according to the check code of the COS data of the check code of last data block and smart card, and the COS version of smart card is carried out verification.
The description of second preferred embodiment of the COS edition correcting method of the concrete use of the COS version check device 40 of the smart card of this preferred embodiment and above-mentioned smart card is same or similar, specifically sees also the associated description in second preferred embodiment of COS edition correcting method of above-mentioned smart card.
The COS version check device of the smart card of this preferred embodiment is divided into a plurality of data blocks by the COS data with smart card, and compare by the final check code of a plurality of data blocks and the check code of COS data, realize the COS version of smart card is carried out effective verification.
The concrete principle of work of COS edition correcting method and the calibration equipment of smart card of the present invention is described below by a specific embodiment.
Obtaining of the check code of COS data:
COS data as smart card are 0x6162, adopt the check code algorithm of CRC-16/XMODEM, and preset initial value is got 0x0000, and the check code of the COS data of calculating (being the COS version) is 0x74FF.
Obtaining of the check code of data block:
COS data as smart card are 0x6162, and the COS data of this smart card are divided into 0x61 and 0x62, at first adopt the check code algorithm of CRC-16/XMODEM, and preset initial value is got 0x0000, and the check code of the COS data of calculating (being the COS version) is:
(0x00<<8)^crc(0x61^0x00)=0x7C87。
Still adopt the check code algorithm of CRC-16/XMODEM then, preset initial value is got 0x7C87, and the check code of the COS data of calculating (being the COS version) is:
(0x87<<8)^crc(0x62^0x7c)=0x8700^crc(1E)=0x8700^0xF3FF=0x74FF。
When as seen carrying out the verification of data as the check code algorithm of the CRC-16/XMODEM of the COS The data standard of smart card, the check code of COS data should be identical with the check code of last data block.This is because the generation of the check code of CRC-16/XMODEM is each byte with data is that unit calculates, so the check code of COS data can whole COS data generate, and a plurality of data blocks that also can the COS data comprise generate.
If revised the COS data, but keep the check code of COS data constant again, must the check code algorithm of COS data be changed, it is that each byte with data is the characteristic that unit calculates that the check code algorithm after the change then has been difficult to keep above-mentioned check code.Therefore as adopt a plurality of data blocks to generate the check code of COS data, can cause the check code of the final check code of data block and COS data inconsistent, thereby but verification go out the COS data is distorted.
The COS edition correcting method of smart card of the present invention and calibration equipment are divided into a plurality of data blocks by the COS data with smart card, comparison by to the check code of the check code of a plurality of data blocks and COS data realizes the COS version of smart card is carried out effective verification.Solved the technical matters that the COS version check device of existing smart card can not carry out effective verification to the COS data of smart card.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure transformation that utilizes instructions of the present invention and accompanying drawing content to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the COS edition correcting method of a smart card is characterized in that, comprises step:
The COS data of smart card are divided at least two data blocks;
Use the built-in checking algorithm of described smart card and preset initial value to determine the check code of each described data block; And
According to the check code of the COS data of the check code of described data block and described smart card, the COS version of described smart card is carried out verification.
2. the COS edition correcting method of smart card according to claim 1 is characterized in that,
The checking algorithm that the described smart card of described use is built-in and preset initial value determine that the step of the check code of each described data block comprises:
Use the built-in checking algorithm of described smart card and preset initial value to determine the check code of first data block; And
Use the check code of the built-in checking algorithm of described smart card and described data block to determine the check code of next data block, until the check code of determining last data block;
Described according to described data block check code and the check code of the COS data of described smart card, the step of the COS version of described smart card being carried out verification is specially:
According to the check code of the COS data of the check code of described last data block and described smart card, the COS version of described smart card is carried out verification.
3. the COS edition correcting method of smart card according to claim 1 is characterized in that, uses the built-in checking algorithm of described smart card and described preset initial value to determine the check code of the COS data of described smart card.
4. the COS edition correcting method of smart card according to claim 2, it is characterized in that, described according to described last data block check code and the check code of the COS data of described smart card, the step of the COS version of described smart card being carried out verification is specially:
The check code of last data block is identical with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is normal;
The check code of last data block is different with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is unusual.
5. the COS edition correcting method of smart card according to claim 1 is characterized in that, the step that described COS data with smart card are divided at least two data blocks is specially:
According to the application in the described smart card, the COS data of smart card are divided at least two data blocks.
6. the COS version check device of a smart card is characterized in that, comprising:
Divide module, be used for the COS data of smart card are divided at least two data blocks;
Data block check code determination module is used for the check code that uses the built-in checking algorithm of described smart card and preset initial value to determine each described data block; And
System data verification module is used for the check code according to the COS data of the check code of described data block and described smart card, and the COS version of described smart card is carried out verification.
7. the COS version check device of smart card according to claim 6 is characterized in that, described block check sign indicating number determination module comprises:
The first data block check code determining unit is used for the check code that uses the built-in checking algorithm of described smart card and preset initial value to determine first data block; And
The second data block check code determining unit, the check code that is used for the built-in checking algorithm of the described smart card of use and described data block is determined the check code of next data block, until the check code of determining last data block;
Described system data verification module comprises:
Verification unit is used for the check code according to the COS data of the check code of described last data block and described smart card, and the COS version of described smart card is carried out verification.
8. the COS version check device of smart card according to claim 6 is characterized in that, described system data verification module uses the built-in checking algorithm of described smart card and described preset initial value to determine the check code of the COS data of described smart card.
9. the COS version check device of smart card according to claim 7 is characterized in that, described verification unit specifically is used for:
The check code of last data block is identical with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is normal;
The check code of last data block is different with the check code of the COS data of described smart card as described, determines that then the COS version of described smart card is unusual.
10. the COS version check device of smart card according to claim 6 is characterized in that, described division module specifically is used for:
According to the application in the described smart card, the COS data of smart card are divided at least two data blocks.
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| CN102882651A (en) * | 2012-09-27 | 2013-01-16 | 华为技术有限公司 | Cyclic redundancy check method and cyclic redundancy check device |
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| US20100092039A1 (en) * | 2003-06-26 | 2010-04-15 | Eran Steinberg | Digital Image Processing Using Face Detection Information |
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| CN112688905A (en) * | 2019-10-18 | 2021-04-20 | 成都华为技术有限公司 | Data transmission method, device, client, server and storage medium |
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