CN101458757B - Memory card copy prevention method for electronic dictionary - Google Patents
Memory card copy prevention method for electronic dictionary Download PDFInfo
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- CN101458757B CN101458757B CN2007101985034A CN200710198503A CN101458757B CN 101458757 B CN101458757 B CN 101458757B CN 2007101985034 A CN2007101985034 A CN 2007101985034A CN 200710198503 A CN200710198503 A CN 200710198503A CN 101458757 B CN101458757 B CN 101458757B
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Abstract
The invention relates to a memory card anti-copy method for electronic dictionary machines, comprising using an electronic dictionary machine to process anti-copy encryption step on a memory card connected externally, wherein the encryption step comprises: converting the general document system on the memory card into a specific document system, reading and encrypting the hardware mark of the memory card and writing the mark into a specific region of the memory card. When using a memory card not processed with the anti-copy encryption step but containing same content, electronic dictionary machines can recognize and reject the memory card, thereby protecting copyright.
Description
Technical field
The present invention relates to a kind of memory card copy prevention method, relate to a kind of memory card copy prevention method that is used for electronic dictionary or rather.
Background technology
Compared to the papery dictionary, that handheld electronic dictionary machine has is easy to carry, inquire about advantage fast.And along with the progress of semiconductor technology, dictionaries such as that nowadays onesize electronic dictionary may have simultaneously is English-Chinese, Chinese-English, Ying Ying, the words of taking in, explanation and example sentence are also more, and also may add other as functions such as language learning, e-book, USB flash disk, MP3, recording pens.In addition, the user can also expand electronic dictionary by external storage card as required.These are used for the storage card (the following electronic dictionary card that abbreviates as sometimes) of electronic dictionary, store as data such as each domain-specific dictionary, language learning, electronic games the interior perhaps function of extendible electronic dictionary when these storage cards insert electronic dictionary in it.
For the data that prevent these electronic dictionary card internal memories by illegal copies, two kinds of anti-copy methods are generally arranged.A kind of anti-copy method is that the electronic dictionary card uses special-purpose encrypted card, and its cost is higher, and must import correct user's title and password could be visited its content.Another kind of anti-copy method is that the electronic dictionary card uses non-universal document system, though cost is lower, can't prevent mirror-image copies.
Summary of the invention
Purpose of the present invention is exactly in that a kind of memory card copy prevention method that is used for electronic dictionary is provided, in order to overcome above-mentioned defective.
The present invention proposes a kind of memory card copy prevention method that is used for electronic dictionary, it comprises encrypted and discerns two megastages, wherein the encryption stage is to be undertaken by manufacturer or the merchant of system before storage card dispatches from the factory, and cognitive phase is undertaken by the user after storage card dispatches from the factory.In the encryption stage, at first, will use the storage card of universal document system to insert main frame; Then, main frame transfers universal document system on the storage card to dedicated file system by the sign of revised file system; Then, main frame reads the hardware identifier of storage card and encrypts to produce corresponding enciphered data; At last, main frame writes enciphered data in the specific region of dedicated file system on the storage card.In cognitive phase, at first, storage card to be identified is inserted electronic dictionary; Then, electronic dictionary judges whether file system is identical with the dedicated file system in the stage of encryption on the storage card to be identified, if the then specific region reading encrypted data of electronic dictionary dedicated file system from the storage card to be identified and deciphering, and read the hardware identifier of storage card to be identified; Then, whether electronic dictionary comparison enciphered data deciphering back is identical with the hardware identifier data that read, if storage card then to be identified inequality is to have damaged or the storage card of illegal copies, can normally use as if identical storage card then to be identified.
The present invention carries out anti-copy by electronic dictionary to external storage card and encrypts the stage, this encryption stage comprises and transfers universal document system on the storage card to dedicated file system, and the hardware identifier of storage card is read the specific region that writes back storage card after the encryption again.When using the not process anti-copy stage of encrypting but to contain the storage card of same content, electronic dictionary can be discerned and refuse to use, thereby reaches the effect of copyright protection.
Description of drawings
Fig. 1 is for illustrating the process flow diagram that electronic dictionary card anti-copy method is encrypted the stage according to one embodiment of the invention;
Fig. 2 is for illustrating the process flow diagram of electronic dictionary card anti-copy method cognitive phase according to one embodiment of the invention.
Description of reference numerals: S11-will use the electronic dictionary card of universal document system to insert main frame; The S12-main frame loads universal document system on the electronic dictionary card; The sign of the universal document system that the S13-host modifications loads makes it become dedicated file system; The dedicated file system that the S14-main frame obtains modification writes back the electronic dictionary card to replace universal document system originally; The S15-main frame reads the hardware identifier of electronic dictionary card; The S16-main frame encrypts the hardware identifier that reads to produce corresponding enciphered data; The S17-main frame writes enciphered data in the specific region of dedicated file system on the electronic dictionary card; S21-inserts electronic dictionary with electronic dictionary card to be identified; The S22-electronic dictionary loads file system on the electronic dictionary card; Is the file system that S23-loads a universal document system? Is the dedicated file system sign in the S24-file system sign and the stage of encryption identical? The specific region reading encrypted data of S25-electronic dictionary file system from the electronic dictionary card and deciphering; The S26-electronic dictionary reads the hardware identifier of electronic dictionary card; Is S27-enciphered data deciphering back identical with the hardware identifier data that read? S28-uses as the common store card; S29-can load electronic dictionary card content and normally use; S30-electronic dictionary card has damaged or illegal copies.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
Memory card copy prevention method (the following electronic dictionary card that the is called sometimes) anti-copy method that is used for electronic dictionary comprises encrypted and discerns two megastages, wherein the encryption stage is to be undertaken by manufacturer or the merchant of system before the electronic dictionary card dispatches from the factory, and cognitive phase is undertaken by the user after the electronic dictionary card dispatches from the factory.
Fig. 1 is for illustrating the process flow diagram that electronic dictionary card anti-copy method is encrypted the stage according to one embodiment of the invention.Please refer to Fig. 1, at first,, will use the electronic dictionary card of universal document system to insert main frame at step S11.The electronic dictionary card that this inserts at the beginning can adopt unencrypted electronic dictionary card, as the mmc card of not supporting encryption function or support encryption function but do not use the SD card of encryption function.If adopt unencrypted electronic dictionary card, just needn't could visit its content as special-purpose correct user's title and the password of encrypted electronic dictionary calorie requirement input.Here, main frame for example is the electronic dictionary that can use described electronic dictionary card, and just its modification encryption function is not opened to the outside world or be open when cognitive phase.
In addition, universal document system for example is the FAT file system, and FAT is the abbreviation of file allocation table (File AllocationTable), and this is the employed file system of present most of storage card.A FAT file system comprises four fundamental regions in reserve area (reserved region), FAT zone (FAT region), root directory zone (root directoryregion), file and catalogue data zone (file and directory data region), and wherein the root directory zone does not exist in the FAT32 file system.Reserve area is positioned at the position that begins most, and its first sector (sector) is commonly referred to and starts sector (boot sector).Start the sector and comprise a basic input block (Bios Parameter Block, be called for short BPB), and BPB comprises the filesystem information that some are basic, as it type (type), sequence number (serial number), label (1abel) and other point to index of other sector etc.The BPB back can be followed the start-up code (boot code) of operating system usually.
Then, at step S12, main frame loads universal document system on the electronic dictionary card.At step S13, host modifications loads on the sign of the universal document system in the main frame, makes it become electronic dictionary card dedicated file system.Here, the sign of universal document system for example is the signature (signature) in the BPB and following in the included information of the start-up code of BPB back in the FAT file system, and wherein the signature in the BPB is used to refer to three fields of type, sequence number, label and then.At step S14, the dedicated file system that main frame obtains modification writes back the electronic dictionary card to replace the universal document system of script on it.So to S14, main frame transfers universal document system on the electronic dictionary card to dedicated file system by the sign of revised file system at step S12.
Then, at step S15, main frame reads the hardware identifier of electronic dictionary card.Here, hardware identifier for example is product ID (product serial number), and it can not be changed, and the different electronic dictionary jig of opening has different product IDs.At step S16, main frame is encrypted the hardware identifier of the electronic dictionary card that reads by the cryptographic algorithm as SHA-1, to produce corresponding enciphered data.So to S16, main frame reads the hardware identifier of electronic dictionary card and encrypts, to produce corresponding enciphered data at step S15.
At last, at step S17, main frame writes described enciphered data the specific region of dedicated file system on the electronic dictionary card.Here, the specific region for example is that modification FAT file system identifies the reserve area in the resulting dedicated file system.
Fig. 2 is for illustrating the process flow diagram of electronic dictionary card anti-copy method cognitive phase according to one embodiment of the invention.Please refer to Fig. 2, at first,, electronic dictionary card to be identified is inserted electronic dictionary at step S21.
Then, at step S22, electronic dictionary loads file system on the electronic dictionary card to be identified.At step S23, whether the file system that electronic dictionary judge to load universal document system.If, be that file system is a universal document system on the electronic dictionary card to be identified, then arrive step S28, this electronic dictionary card to be identified must be encrypted the stage through anti-copy shown in Figure 1, it may be the general electronic dictionary card that anti-copy is not arranged, and pretends to be the use of common store card.If not, file system is a dedicated file system on the electronic dictionary card promptly to be identified, then needs step S24, is judged by electronic dictionary whether the sign of file system on the electronic dictionary card to be identified is identical with the sign of the dedicated file system in the stage of encryption again.At step S24, if electronic dictionary judges that the sign of the sign of dedicated file system on the electronic dictionary card to be identified and the dedicated file system in the stage of encryption is inequality, expression is different dedicated file system, then arrive step S30, electronic dictionary card to be identified may be to have damaged or the electronic dictionary card of illegal copies.Otherwise,, represent that this electronic dictionary card " possibility " to be identified can be used by present electronic dictionary if electronic dictionary judges that the sign of dedicated file system on the electronic dictionary card to be identified is identical with the sign of the dedicated file system in the stage of encryption.So step S22 is to S24, electronic dictionary judges whether file system is identical with the dedicated file system in encryption shown in Figure 1 stage on the electronic dictionary card to be identified.
Because mirror-image copies can make on the electronic dictionary card file system identical with the dedicated file system in encryption shown in Figure 1 stage, so still need again electronic dictionary to be sticked into its judgement of Xingqi.At step S25, the specific region reading encrypted data of electronic dictionary dedicated file system from the electronic dictionary card to be identified and deciphering.At step S26, electronic dictionary reads the hardware identifier of electronic dictionary card to be identified.
At last, at step S27, whether electronic dictionary comparison enciphered data deciphering back is identical with the hardware identifier data that read.If i.e. enciphered data deciphering back is identical with the hardware identifier data that read, and then arrives step S29, electronic dictionary card to be identified can normally use, and its content can be visited by present electronic dictionary.If not, i.e. enciphered data deciphering back and the hardware identifier data that read are inequality, then arrive step S30, and electronic dictionary card to be identified has damaged or illegal copies.
Special-purpose encrypted electronic dictionary card must input correct user's title and password could be visited its content, can use on any electronic dictionary or platform.And the present invention only does the detection protection to its electronic dictionary card that to be ready using on electronic dictionary, in fact breaks away from electronic dictionary as the electronic dictionary card
In sum, the memory card copy prevention method that is used for electronic dictionary of the present invention, it carries out anti-copy by electronic dictionary to external storage card and encrypts the stage, this encryption stage comprises and transfers universal document system on the storage card to dedicated file system, and the hardware identifier of storage card is read the specific region that writes back storage card after the encryption again.When using the not process anti-copy stage of encrypting but to contain the storage card of same content, electronic dictionary can be discerned and refuse to use, thereby reaches the effect of copyright protection.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (4)
1. a memory card copy prevention method that is used for electronic dictionary is characterized in that, it comprises an encryption stage and a cognitive phase, wherein,
The described encryption stage comprises:
To use the storage card of universal document system to insert main frame;
Described main frame loads the employed universal document system of described storage card;
The sign of the universal document system that described host modifications loads makes it become dedicated file system;
The dedicated file system that described main frame obtains modification writes back described storage card to replace the universal document system on it;
Described main frame reads the hardware identifier of described storage card and encrypts described hardware identifier to produce corresponding enciphered data; And
Described main frame writes enciphered data in the specific region of dedicated file system on the described storage card,
Described cognitive phase comprises:
Storage card to be identified is inserted electronic dictionary;
Described electronic dictionary judges whether file system is identical with the dedicated file system in the stage of encryption on the described storage card to be identified;
If file system is identical with the dedicated file system in the stage of encryption on the described storage card to be identified, the specific region reading encrypted data and the deciphering of then described electronic dictionary dedicated file system from the described storage card to be identified, and read the hardware identifier of described storage card to be identified; And
Whether described electronic dictionary comparison enciphered data deciphering back is identical with the hardware identifier data that read, if then described storage card to be identified inequality is to have damaged or the storage card of illegal copies, if identical then described storage card to be identified can normally use.
2. the memory card copy prevention method that is used for electronic dictionary according to claim 1 is characterized in that, the homogeny of the file system and the dedicated file system in the stage of encryption comprises on the described storage card to be identified of described judgement:
Described electronic dictionary loads file system on the described storage card to be identified;
Described electronic dictionary is judged whether universal document system of the file system that loads; And
If described electronic dictionary judges that the file system that loads is not a universal document system, judge again then whether the sign of file system on the described storage card to be identified is identical with the sign of the dedicated file system in the stage of encryption,
Wherein, if described electronic dictionary judges that the file system that loads is a universal document system, then described storage card to be identified uses as the common store card; If it is that the sign of dedicated file system and its sign and the dedicated file system in the stage of encryption is inequality that described electronic dictionary is judged the file system that loads, then described storage card to be identified is to have damaged or the storage card of illegal copies; If it is that dedicated file system and its sign are identical with the sign of the dedicated file system in the stage of encryption that described electronic dictionary is judged the file system that loads, then finish the homogeny of file system and the dedicated file system in the stage of encryption on the described storage card to be identified of described judgement.
3. the memory card copy prevention method that is used for electronic dictionary according to claim 1, it is characterized in that, the described encryption stage is to be undertaken by manufacturer or the merchant of system before described storage card dispatches from the factory, and described cognitive phase is undertaken by the user after described storage card to be identified dispatches from the factory.
4. the memory card copy prevention method that is used for electronic dictionary according to claim 1, it is characterized in that, described universal document system comprises the FAT file system, described FAT file system be designated signature and the included information of start-up code in the FAT file system, and described specific region is the reserve area of FAT file system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101985034A CN101458757B (en) | 2007-12-11 | 2007-12-11 | Memory card copy prevention method for electronic dictionary |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101985034A CN101458757B (en) | 2007-12-11 | 2007-12-11 | Memory card copy prevention method for electronic dictionary |
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| Publication Number | Publication Date |
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| CN101458757A CN101458757A (en) | 2009-06-17 |
| CN101458757B true CN101458757B (en) | 2010-09-22 |
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| CN2007101985034A Expired - Fee Related CN101458757B (en) | 2007-12-11 | 2007-12-11 | Memory card copy prevention method for electronic dictionary |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395180A (en) * | 2001-07-09 | 2003-02-05 | 大买家科技股份有限公司 | File protection system using storage card and its method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395180A (en) * | 2001-07-09 | 2003-02-05 | 大买家科技股份有限公司 | File protection system using storage card and its method |
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| CN101458757A (en) | 2009-06-17 |
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Owner name: KINPO ELECTRONIC (CHINA) CO., LTD. Free format text: FORMER OWNER: KINPO ELECTRONIC (SHANGHAI) CO., LTD. Effective date: 20101224 |
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Free format text: CORRECT: ADDRESS; FROM: 200233 5/F, FACTORY BUILDING 28, NO.69, GUIJING ROAD, SHANGHAI TO: 523861 SHATOU MANAGEMENT ZONE, CHANG'AN TOWN, DONGGUAN CITY, GUANGDONG PROVINCE |
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Effective date of registration: 20101224 Address after: 523861, Sha Tau District, Changan Town, Guangdong, Dongguan Patentee after: Kinpo Electronics (China) Co., Ltd. Address before: 200233 Shanghai City Guangxi No. 69 No. 28 Jinglu fifth storey factory building Patentee before: Kinpo Electronics (Shanghai) Co., Ltd. |
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