CN201438374U - Encrypted mobile memory device - Google Patents
Encrypted mobile memory device Download PDFInfo
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- CN201438374U CN201438374U CN2009203051832U CN200920305183U CN201438374U CN 201438374 U CN201438374 U CN 201438374U CN 2009203051832 U CN2009203051832 U CN 2009203051832U CN 200920305183 U CN200920305183 U CN 200920305183U CN 201438374 U CN201438374 U CN 201438374U
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
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Abstract
The utility model relates to an encrypted mobile memory device, which includes a control module, a memory module and a communication interface module, wherein the memory module includes one or the combination of an SD card, an Mini SD card, an Micro SD card, an MMC card, an MMC mini card or an MMC micro card; and the control module is electrically connected with the memory module through an interface circuit adaptive to the memory module, controls and accesses the memory module. Since the memory module which includes one or the combination of an SD card, an Mini SD card, an Micro SD card, an MMC card, an MMC mini card or an MMC micro card is adopted, and the interface circuit adaptive to the memory module is adopted, the costs of the encrypted mobile storage device can be saved and the economic benefits can be improved.
Description
Technical field
The utility model relates to the mobile storage field, relates in particular to a kind of encryption flash memory device.
Background technology
SD card (Secure Digital Memory Card, safe digital card), it is a kind of memory device of new generation of based semiconductor fast-flash memory device, it is widely used on the mancarried device, volume is little, in light weight, but have high memory capacity, fast data transfer rate, great mobile dirigibility and well security.
Mmc card (MultiMediaCard, multimedia storage card) is a kind of flash memory cards, compares with traditional mobile memory card, and its most tangible external feature is a size micro more---have only common postage-stamp-sized.It has the characteristics of small-sized light weight, and weight is below 2 grams, and is and shock-resistant, can read and write record repeatedly 300,000 times.
In the prior art, as u dish or have the compound USBkey equipment of memory function, adopt the flash storage chip, control chip carries out read-write operation by the data address multiplexing line to the flash storage chip.But the cost of control chip of controlling described flash storage chip is higher, causes adopting the movable storage device cost of flash storage chip also higher, and the economic benefit of generation is lower.Therefore, how to reduce the cost of mobile storage safety equipment, become letter problem to be solved.
Summary of the invention
One of the purpose of this utility model reduces cost for a kind of encryption flash memory device is provided, and increases economic efficiency.
The utility model proposes a kind of encryption flash memory device, comprise control module, memory module, communication interface modules, described control module is electrically connected with described communication interface modules by data circuit, described memory module comprises any one or the combination in SD card, MiniSD card, MicroSD card, mmc card, MMC mini card or the MMC micro card, described memory module is controlled and visited to described control module by being electrically connected with described memory module with the adaptive interface circuit of described memory module.
Preferably, above-mentioned memory module comprises the defective-area management unit, is used to reject the bad block of memory module.
Preferably, above-mentioned memory module comprises the loss balancing circuit unit, is used for when memory module writes data calculating writing indegree and dynamically resurveying of sector.
Preferably, above-mentioned interface circuit comprises any one or the combination in SPI interface circuit, SDIO interface circuit or the MMC interface circuit.
Preferably, above-mentioned memory module comprises:
General memory area, but by just direct read data of interface circuit;
Hide the memory block, hide drive, adopt hardware-based cryptographic, and by the read-write of dedicated transmissions agreement;
The secret memory block is by the authentication reading of data;
The optical disc storage district possesses optical disk property, a readable data.
Preferably, above-mentioned control module comprises the general memory area control module, and the general memory area that is used to control described memory module is carried out the instruction that control module is resolved.
Preferably, above-mentioned control module comprises hides the memory block control module, and the instruction that control module is resolved is carried out in the hiding memory block that is used to control described memory module.
Preferably, above-mentioned control module comprises secret memory block control module, and the instruction that control module is resolved is carried out in the secret memory block that is used to control described memory module.
Preferably, above-mentioned control module comprises optical disc storage district control module, and the optical disc storage district that is used to control described memory module carries out the instruction that control module is resolved.
Preferably, above-mentioned control module comprises the intelligent code key unit, is used to deposit the digital certificate and the key of identification user identity, and by the authentication of cryptographic algorithm realization to user identity.
The utility model comprises the memory module of any one or combination in SD card, MiniSD card, MicroSD card, mmc card, MMC mini card or the MMCmicro card by employing, and can with described memory module adaptive interface circuit, can reduce the cost of encrypting flash memory device, increase economic efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the structural representation of the memory module of another embodiment of the utility model;
Fig. 3 is the structural representation of the memory module of another embodiment of the utility model;
Fig. 4 is the structural representation of the memory module of another embodiment of the utility model;
Fig. 5 is the structural representation of the control module of another embodiment of the utility model;
Fig. 6 is the structural representation of the control module of another embodiment of the utility model;
Fig. 7 is the structural representation of the control module of another embodiment of the utility model;
Fig. 8 is the structural representation of another embodiment of the utility model;
Fig. 9 is the structural representation of another embodiment of the utility model.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
With reference to Fig. 1, a kind of encryption flash memory device 10 of the utility model one embodiment is proposed, comprise control module 11, memory module 12, communication interface modules 13, described control module 11 is electrically connected with described communication interface modules 13 by data circuit, described memory module 12 comprises the SD card, the MiniSD card, the MicroSD card, mmc card, in MMC mini card or the MMC micro card any one or combination, described memory module 12 is controlled and visited to described control module 11 by being electrically connected with described memory module 12 with the adaptive interface circuit 14 of described memory module 12.
Above-mentioned control module 11 can be located at the inside of described flash memory device 10 for hardware cell or software and hardware combining unit, is used to control the operation of described flash memory device 10, and described operation includes but not limited to reading and writing data, deleted data.Described communication interface modules 13 can be usb interface module, blue tooth interface module or WLAN interface module, and described encryption flash memory device 10 is by described communication interface modules 13 and peripherals, and for example PC connects realization alternately.As an embodiment of the present utility model, when described flash memory device 10 is connected with peripherals by described communication interface modules 13, peripherals is given control module 11 by described communication interface modules 13 transfer instructions, control module 11 is resolved the instruction that receives and is sent corresponding operating by described interface circuit 14 and instructs to described memory module 12, and described memory module 12 is carried out corresponding operating according to the instruction that receives.Described interface circuit 14 can be SPI (Serial Peripheral interface, serial peripheral interface) interface circuit, SDIO (Secure Digital Input/Output, the secure digital input/output interface) interface circuit or MMC (MultiMediaCard, multimedia storage card) any one in the interface circuit, when described memory module 12 is the SD card, the MiniSD card, the MicroSD card, mmc card, during combination in any in MMC mini card or the MMC micro card, described interface circuit 14 for adaptive with described memory module also can be the SPI interface circuit, the combination in any of SDIO interface circuit or MMC interface circuit.
One of embodiment of present embodiment is SPI interface circuits for described interface circuit 14, and described memory module 12 is the MMC storage card.Described control module 11 is electrically connected with described communication interface modules 13 by data circuit, is electrically connected with the MMC storage card by the SPI interface circuit.
Another embodiment of present embodiment is that described interface circuit 14 is SDIO interface circuits, and described memory module 12 is the SD storage card.Described control module 11 is electrically connected with described communication interface modules 13 by data circuit, is electrically connected with the SD storage card by described SDIO interface circuit.
The utility model comprises the memory module of any one or combination in SD card, MiniSD card, MicroSD card, mmc card, MMC mini card or the MMCmicro card by employing, and can with described memory module adaptive interface circuit, can reduce the cost of encrypting flash memory device, increase economic efficiency.
With reference to Fig. 2, another embodiment of the present utility model is on the basis of the foregoing description, and described memory module 12 further comprises defective-area management unit 120, is used to reject the bad block of memory module 12.Described defective-area management unit 120 can be hardware cell or software and hardware combining unit.As an embodiment of the present utility model, when memory module 12 write data, the memory block of the 120 pairs of memory modules 12 in described defective-area management unit was verified, if find to exist the fault block, just with it rejecting, be written in these fault blocks to prevent data; If there is memory block to make a mistake smearing when writing, equally also with it rejecting, and will smears the data content of writing failure and remigrate in the new virtual storage piece, to avoid causing the data loss because of the mistake of smearing the process of writing.
The utility model embodiment detects by the memory block to memory module 12 and rejects the fault bad block, avoids data is deposited in the fault bad block, to promote the data access fiduciary level of encrypting flash memory device 10.
With reference to Fig. 3, another embodiment of the present utility model is on the basis of the foregoing description, described memory module 12 also comprises loss balancing circuit unit 121, be used for when memory module 12 writes data calculating writing indegree and dynamically resurveying of sector, described dynamically resurveying is meant the indegree of writing that continues to calculate each sector, when having data to write, it can be write the less sector of erasable number of times.Described loss balancing circuit unit 121 can be software unit, hardware cell or software and hardware combining unit.Because usually smearing of memory module 12 write the round-robin number of times certain restriction arranged, loss balancing circuit 121 calculates memory module 12 when memory module 11 writes data sector is write indegree and is dynamically resurveyed, on average write indegree with what guarantee each sector, be used to prolong the serviceable life of memory module 11.
The utility model embodiment dynamically resurveys by indegree is write in the sector of memory module 12, can prolong the life-span of memory module 12.
With reference to Fig. 4, another embodiment of the present utility model is on the basis of the foregoing description, and described memory module 12 also comprises: general memory area 122, and described control module 11 just can directly be controlled visit by described interface circuit 14; Hide memory block 123, hide drive, adopt hardware-based cryptographic, and by the read-write of dedicated transmissions agreement; Secret memory block 124 is by the authentication reading of data; Optical disc storage district 125 possesses optical disk property, a readable data.As an embodiment of the present utility model, when peripherals transmit operation instruction is imported control module 11 into via communication interface modules 13, control module 11 is resolved this instruction, and judge this operational order is which district in general memory area 122, hiding memory block 123, secret memory block 124 or the optical disc storage district 125 is operated, and operate according to the characteristic of this memory block.
With reference to Fig. 5, another embodiment of the present utility model is on the basis of the foregoing description, and described control module 11 comprises general memory area control module 110, and the general memory area 122 that is used to control described memory module 12 is carried out the instruction that control modules 11 are resolved.As an embodiment of the present utility model, when peripherals transmit operation instruction is imported control module 11 into via communication interface modules 13, described control module 11 is resolved instruction and is judged that this instruction is the operation to described general memory area 122, and the general memory area 122 of the described memory module 12 of then described general memory area control module 110 controls is carried out this operation.
With reference to Fig. 6, another embodiment of the present utility model is on the basis of the foregoing description, and described control module 11 comprises hides memory block control module 111, and the instruction that control modules 11 are resolved is carried out in the hiding memory block 123 that is used to control described memory module 12.Hide the drive of the hiding memory block 123 of memory block control module 111 realizations and hide when not showing, could visit by the dedicated transmissions agreement and hide memory block 123, and carry out read-write operation hiding memory block 123.As an embodiment of the present utility model, when peripherals transmit operation instruction is imported control module 11 into via communication interface modules 13, described control module 11 is resolved instruction and is judged that this instruction is to hiding the operational order of memory block 123, hiding memory block control module 111 reads and writes hiding memory block 123 by the data address multiplexing line, in the read-write process, the addressing coded system of hardware address and the analysis mode of command word realized by hiding memory block control module 111.
With reference to Fig. 7, another embodiment of the present utility model is on the basis of the foregoing description, and described control module 11 comprises secret memory block control module 112, and the instruction that control modules 11 are resolved is carried out in the secret memory block 124 that is used to control described memory module 12.As an embodiment of the present utility model, when peripherals transmit operation instruction is imported control module 11 into via communication interface modules 13, described control module 11 is resolved instruction and is judged that this instruction is the operational order to secret memory block 124, secret memory block control module 112 sends the instruction that the request user inputs password, receive the password and the checking of user's input, if be proved to be successful then can equally carry out read-write operation by similar general memory area 122.
With reference to Fig. 8, another embodiment of the present utility model is on the basis of the foregoing description, and described control module 11 comprises optical disc storage district control module 113, and the optical disc storage district 125 that is used to control described memory module 12 carries out the instruction that control modules 11 are resolved.Described optical disc storage district control module 113 realizes that the attribute in these districts is read-only, can not write data by any method, and characteristic that can analog rom is finished for example AUTORUN function.
With reference to Fig. 9, another embodiment of the present utility model is on the basis of the foregoing description, described control module 11 comprises intelligent code key unit 114, is used to deposit the digital certificate and the key of identification user identity, and by the authentication of cryptographic algorithm realization to user identity.As an embodiment of the present utility model, when described encryption flash memory device 10 is connected with peripherals by communication interface modules 13, whether legal peripherals send checking and encrypt the request of the user identity of flash memory device 10 to server, server sends a random number to peripherals, peripherals is transferred to described encryption flash memory device 10 by communication interface modules 13 with this random number, key and cryptographic algorithm that described intelligent code key unit 114 usefulness are deposited in are wherein made cryptographic calculation to this random number, and the result passed to server by peripherals, server is also made cryptographic calculation with same key and cryptographic algorithm to this random number simultaneously, and the result that will receive and operation result are compared, if identical, user identity that then assert to encrypt flash memory device 10 is validated user and sends the result to peripherals; Otherwise, think that then the user identity of encrypting flash memory device 10 sends peripherals to for the disabled user and with the result.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to be done; 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 utility model.
Claims (10)
1. encrypt flash memory device for one kind, comprise control module, memory module, communication interface modules, described control module is electrically connected with described communication interface modules by data circuit, it is characterized in that, described memory module comprises any one or the combination in SD card, MiniSD card, MicroSD card, mmc card, MMC mini card or the MMC micro card, described memory module is controlled and visited to described control module by being electrically connected with described memory module with the adaptive interface circuit of described memory module.
2. encryption flash memory device as claimed in claim 1 is characterized in that, described memory module comprises:
The defective-area management unit, the bad block that is used to reject memory module.
3. encryption flash memory device as claimed in claim 1 is characterized in that, described memory module also comprises:
The loss balancing circuit unit is used for when memory module writes data calculating writing indegree and dynamically resurveying of sector.
4. as each described encryption flash memory device of claim 1 to 3, it is characterized in that described interface circuit comprises:
In SPI interface circuit, SDIO interface circuit or the MMC interface circuit any one or combination.
5. as each described encryption flash memory device of claim 1 to 3, it is characterized in that described memory module also comprises:
General memory area is by interface circuit direct read data;
Hide the memory block, hide drive, adopt hardware-based cryptographic, and by the read-write of dedicated transmissions agreement;
The secret memory block is by the authentication reading of data;
The optical disc storage district possesses optical disk property, a readable data.
6. encryption flash memory device as claimed in claim 5 is characterized in that, described control module comprises:
The general memory area control module, the general memory area that is used to control described memory module is carried out the instruction that control module is resolved.
7. encryption flash memory device as claimed in claim 5 is characterized in that, described control module also comprises:
Hide the memory block control module, the instruction that control module is resolved is carried out in the hiding memory block that is used to control described memory module.
8. encryption flash memory device as claimed in claim 5 is characterized in that, described control module also comprises:
Secret memory block control module, the instruction that control module is resolved is carried out in the secret memory block that is used to control described memory module.
9. encryption flash memory device as claimed in claim 5 is characterized in that, described control module also comprises:
Optical disc storage district control module, the optical disc storage district that is used to control described memory module carries out the instruction that control module is resolved.
10. as each described encryption flash memory device of claim 1 to 3, it is characterized in that described control module comprises:
The intelligent code key unit is used to deposit digital certificate and the key of discerning user identity, and by the authentication of cryptographic algorithm realization to user identity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203051832U CN201438374U (en) | 2009-06-26 | 2009-06-26 | Encrypted mobile memory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203051832U CN201438374U (en) | 2009-06-26 | 2009-06-26 | Encrypted mobile memory device |
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| CN201438374U true CN201438374U (en) | 2010-04-14 |
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| CN2009203051832U Expired - Lifetime CN201438374U (en) | 2009-06-26 | 2009-06-26 | Encrypted mobile memory device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840379A (en) * | 2010-04-26 | 2010-09-22 | 苏州国芯科技有限公司 | Data transmission method of SD card controller |
| CN104657674A (en) * | 2015-01-16 | 2015-05-27 | 北京邮电大学 | Isolation protection system and isolation protection method of private data in mobile phone |
| CN108270568A (en) * | 2016-12-31 | 2018-07-10 | 普天信息技术有限公司 | A kind of mobile digital certificate device and its update method |
| CN109448203A (en) * | 2018-12-26 | 2019-03-08 | 江苏亨通问天量子信息研究院有限公司 | Control method, device, system and the smart lock of smart lock |
| CN111241605A (en) * | 2019-12-31 | 2020-06-05 | 航天信息股份有限公司 | Safety storage device and method based on tax digital certificate |
-
2009
- 2009-06-26 CN CN2009203051832U patent/CN201438374U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840379A (en) * | 2010-04-26 | 2010-09-22 | 苏州国芯科技有限公司 | Data transmission method of SD card controller |
| CN101840379B (en) * | 2010-04-26 | 2012-07-25 | 苏州国芯科技有限公司 | Data transmission method of SD card controller |
| CN104657674A (en) * | 2015-01-16 | 2015-05-27 | 北京邮电大学 | Isolation protection system and isolation protection method of private data in mobile phone |
| CN104657674B (en) * | 2015-01-16 | 2018-02-23 | 北京邮电大学 | The insulation blocking system and method for private data in a kind of mobile phone |
| CN108270568A (en) * | 2016-12-31 | 2018-07-10 | 普天信息技术有限公司 | A kind of mobile digital certificate device and its update method |
| CN109448203A (en) * | 2018-12-26 | 2019-03-08 | 江苏亨通问天量子信息研究院有限公司 | Control method, device, system and the smart lock of smart lock |
| CN111241605A (en) * | 2019-12-31 | 2020-06-05 | 航天信息股份有限公司 | Safety storage device and method based on tax digital certificate |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Encrypted mobile storage device with shortcut key Effective date of registration: 20121121 Granted publication date: 20100414 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Wendingchuang Data Technology Co., Ltd. Registration number: 2012990000710 |
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Date of cancellation: 20131125 Granted publication date: 20100414 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Wendingchuang Data Technology Co., Ltd. Registration number: 2012990000710 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Encrypted mobile storage device with shortcut key Effective date of registration: 20131125 Granted publication date: 20100414 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Wendingchuang Data Technology Co., Ltd. Registration number: 2013990000896 |
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Date of cancellation: 20160411 Granted publication date: 20100414 Pledgee: Shenzhen SME credit financing guarantee Group Co., Ltd. Pledgor: Shenzhen Wendingchuang Data Technology Co., Ltd. Registration number: 2013990000896 |
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Effective date of registration: 20170405 Address after: 100000 room 703-710, room B3, Huayuan Road, Haidian District, Beijing, 7 Patentee after: Beijing Minghua Alliance Technology Co., Ltd. Address before: 518057 Shenzhen, Guangdong, Nanshan District hi tech Zone, Shenzhen Software Park building, room 4, room 208 Patentee before: Shenzhen Wendingchuang Data Technology Co., Ltd. |
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