CN203456096U - SD (secure digital memory) card interface safety device - Google Patents
SD (secure digital memory) card interface safety device Download PDFInfo
- Publication number
- CN203456096U CN203456096U CN201320589411.XU CN201320589411U CN203456096U CN 203456096 U CN203456096 U CN 203456096U CN 201320589411 U CN201320589411 U CN 201320589411U CN 203456096 U CN203456096 U CN 203456096U
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- interface
- card
- chip
- safety
- memory
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- Expired - Fee Related
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- 238000003860 storage Methods 0.000 claims abstract description 14
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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Abstract
The utility model provides an SD (secure digital memory) card interface safety device. The SD card interface safety device structurally comprises a card safety interface controller, a memory and an external interface, wherein the memory is connected with the card safety interface controller; the card safety interface controller is internally provided with a memory interface driving chip, an SD card interface driving chip, a USB (universal serial bus) interface driving chip, a safety chip and an interface automatic recognition switching chip, wherein the memory interface driving chip is connected with the memory; the SD card interface driving chip and the USB interface driving chip are both connected with the external interface through the interface automatic recognition switching chip; the external interface comprises an SD card interface and a USB interface. Compared with the prior art, the SD card interface safety device has the characteristics of reasonable design, simple structure, convenience in use and the like, improves the storage safety of the whole SD card due to the arrangement of the safety chip, is high in practicability, and is easy to popularize and use.
Description
Technical field
The utility model relates to electronic information security technical field, a kind of simple in structure specifically, SD card interface safety feature.
Background technology
Current flourish along with mobile Internet, the application on various mobile phones emerges in an endless stream, and mobile security is paid attention to by increasing people.Safe storage, as the protection to mobile terminal data, is the key component of mobile security, as an emerging industry; huge market scale will be there is; common sd card storage information is transparent, even preservation is that enciphered message also can be read out, its security is not high.The security of the access control of storage and storage data will be the demand for security that terminal user is urgent for this reason.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of simple in structure, SD card interface safety feature is provided.
The technical solution of the utility model realizes in the following manner, this a kind of SD card interface safety feature, its structure comprises card safe interface controller, the storer and the external interface that are connected with card safe interface controller, described card safe interface controller internal memory interface driver chip, SD card interface drives chip, USB interface drives chip, safety chip, interface is identified switching chip automatically, wherein memory interface drives chip connected storage, SD card interface driving chip and USB interface driving chip are all automatically identified switching chip by interface and are connected external interface, described external interface comprises SD card interface and USB interface.
As preferably, described card safe storage controller is 32 single-chip microcomputers.
The beneficial effect that the utility model compared with prior art produced is:
The feature such as that a kind of SD card interface safety feature of the present utility model has is simple in structure, easy to use, be skillfully constructed, by safety chip is set, improve the security of whole SD card storage, safety feature of the present utility model is except having general sd card memory function and safe key function, but also there is storer ciphertext storage informational function, and both can support the application of intelligent terminal sd interfacing equipment, also can support the application of usb interfacing equipment, practical, be easy to promote the use of.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation block diagram of the present utility model.
Accompanying drawing 2 is card safe interface controller inner structure schematic diagram.
Mark in accompanying drawing represents respectively:
1, storer, 2, card safe interface controller, 2.1, memory interface drives chip, 2.2, USB interface drives chip, 2.3, interface is identified switching chip automatically, 2.4, safety chip, 2.5, SD card interface drives chip, 2.6, memory module in sheet, 2.7, CPU, 2.8, real-time timepiece chip, 2.9, BUS bus, 3, external interface.
Embodiment
Below in conjunction with accompanying drawing, a kind of SD card interface safety feature of the present utility model is described in detail below.
The utility model provides the control panel of integrated some interfaces that a kind of self-help terminal equipment uses, as shown in Figure 1, its structure comprises card safe interface controller 2, storer 1 and external interface with 2 electrical connections of card safe interface controller, described card safe interface controller 2 internal memory interface driver chips 2.1, SD card interface drives chip 2.5, USB interface drives chip 2.2, safety chip 2.4, interface is automatically identified and is switched chip 2.3, wherein memory interface drives chip 2.1 connected storages 1, SD card interface driving chip 2.5 and USB interface driving chip 2.2 are all automatically identified switching chip 2.3 by interface and are connected external interface, described external interface comprises SD card interface and USB interface.
Described card safe storage controller is 32 single-chip microcomputers.
As shown in Figure 2, described card safe storage controller inside comprises memory module 2.6 in sheet, 32 bit CPUs 2.7, real-time timepiece chip 2.8, memory interface drives chip 2.1, SD card interface drives chip 2.5, USB interface drives chip 2.2, safety chip 2.4, interface is automatically identified and is switched chip 2.3, wherein interface is automatically identified and is switched chip 2.3 and connect respectively SD card interface and drive chip 2.5 and USB interface to drive chip 2.2, and memory module 2.6 in sheet, 32 bit CPUs 2.7, real-time timepiece chip 2.8, memory interface drives chip 2.1, SD card interface drives chip 2.5, USB interface drives chip 2.2, safety chip 2.4 is all connected in BUS bus 2.9.
Wherein in sheet, memory module 2.6 can be used for store data, can change according to the actual requirements the data of depositing, and can comprise: secure file, personally identifiable information, digital authenticating certificate, key, data encryption information etc. such as the data of depositing.
Described safety chip 2.4 refers to the close algorithm for encryption chip of state, as adopted model, is TF32A09 family chip, supports symmetric cryptographic algorithm, asymmetric cryptographic algorithm and the hash algorithm of national Password Management office appointment, supports international cryptographic algorithm simultaneously.
Except technical characterictic described in instructions, be the known technology of those skilled in the art.
Claims (2)
1. a SD card interface safety feature, it is characterized in that: its structure comprises card safe interface controller, the storer and the external interface that are connected with card safe interface controller, described card safe interface controller internal memory interface driver chip, SD card interface drives chip, USB interface drives chip, safety chip, interface is identified switching chip automatically, wherein memory interface drives chip connected storage, SD card interface driving chip and USB interface driving chip are all automatically identified switching chip by interface and are connected external interface, described external interface comprises SD card interface and USB interface.
2. a kind of SD card interface safety feature according to claim 1, is characterized in that: described card safe storage controller is 32 single-chip microcomputers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589411.XU CN203456096U (en) | 2013-09-24 | 2013-09-24 | SD (secure digital memory) card interface safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589411.XU CN203456096U (en) | 2013-09-24 | 2013-09-24 | SD (secure digital memory) card interface safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203456096U true CN203456096U (en) | 2014-02-26 |
Family
ID=50135957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589411.XU Expired - Fee Related CN203456096U (en) | 2013-09-24 | 2013-09-24 | SD (secure digital memory) card interface safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203456096U (en) |
-
2013
- 2013-09-24 CN CN201320589411.XU patent/CN203456096U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INSPUR GROUP CO., LTD. Free format text: FORMER NAME: SHANDONG INSPUR SOFTWARE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 250101 No. 2877, route No., hi tech Zone, Shandong, Ji'nan Patentee after: Inspur Group Co., Ltd. Address before: 250104 Ji'nan science and Technology Development Zone, Shandong Branch Road No. 2877 Patentee before: Shandong Inspur software Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20170924 |