CN202957047U - Encrypted USB (Universal Serial Bus) flash disk - Google Patents
Encrypted USB (Universal Serial Bus) flash disk Download PDFInfo
- Publication number
- CN202957047U CN202957047U CN 201220645938 CN201220645938U CN202957047U CN 202957047 U CN202957047 U CN 202957047U CN 201220645938 CN201220645938 CN 201220645938 CN 201220645938 U CN201220645938 U CN 201220645938U CN 202957047 U CN202957047 U CN 202957047U
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- encrypted
- disk
- main control
- chip
- control chip
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Abstract
The utility model discloses an encrypted USB (Universal Serial Bus) flash disk which can hide private encryption partitions and digital signatures. The main control chip of the encrypted USB flash disk is an encrypted USB flash disk main control chip of which the model is Z8HM2-II; and the encrypted USB flash disk main control chip is respectively connected with a USB2.0 interface circuit, a data storage circuit, a safety chip, a clock and a reset circuit.
Description
Technical field
The utility model belongs to the technical field of portable safe memory apparatus, relates to particularly a kind of encrypted U disk.
Background technology
As the representative of portable safe memory apparatus, USB flash disk is the movable storage device that fast development is got up in recent years, because its capacity is large, be easy to carry, and cost is lower, has obtained universal and development rapidly.But the use of common U disk is transparent, once lose, all data and the file of storage are easy to be read out, and its convenience and security exposed day by day go out contradiction.This just limited its special dimension or the safety requirements sector application arranged, as the electronic declaration of tax information, the data acquisition of social security system and upload etc. in use.A kind of novel product---encrypted U disk arises at the historic moment, and with the dirigibility of its security, portability and security strategy, has obtained positive application in numerous sector applications.But most of this encrypted U disks can't be realized concealed encrypted partition and digital signature.
Summary of the invention
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of encrypted U disk that can realize concealed encrypted partition and digital signature is provided.
Technical solution of the present utility model is: this encrypted U disk, its encrypted U disk main control chip is the encrypted U disk main control chip that model is Z8HM2-II, and the encrypted U disk main control chip is connected with USB2.0 interface circuit, data storage circuitry, safety chip, clock and reset circuit respectively.
Owing to having adopted encrypted U disk main control chip and the corresponding peripheral circuit that model is Z8HM2-II, so can realize concealed encrypted partition and digital signature.
The accompanying drawing explanation
Fig. 1 shows the structural representation according to encrypted U disk of the present utility model.
Embodiment
As shown in Figure 1, this encrypted U disk, its encrypted U disk main control chip is the encrypted U disk main control chip that model is Z8HM2-II, the encrypted U disk main control chip is connected with USB2.0 interface circuit, data storage circuitry, safety chip, clock and reset circuit respectively.
Owing to having adopted encrypted U disk main control chip and the corresponding peripheral circuit that model is Z8HM2-II, so can realize concealed encrypted partition and digital signature.
Preferably, this encrypted U disk also comprises condition indication circuit.
Preferably, condition indication circuit comprises LED indication port.
Preferably, the USB2.0 interface circuit comprises the self-recovering type fuse.
Preferably, data storage circuitry comprises the NandFlash chip.
Preferably, safety chip is the safety encipher chip that model is Z8D64U.
Preferably, the clock in clock and reset circuit adopts the 12MHZ crystal oscillator, and reset circuit is the RC electrify restoration circuit.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction; any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong to the protection domain of technical solutions of the utility model.
Claims (7)
1. an encrypted U disk, it is characterized in that: its encrypted U disk main control chip is the encrypted U disk main control chip that model is Z8HM2-II, and the encrypted U disk main control chip is connected with USB2.0 interface circuit, data storage circuitry, safety chip, clock and reset circuit respectively.
2. encrypted U disk according to claim 1, is characterized in that: also comprise condition indication circuit.
3. encrypted U disk according to claim 2 is characterized in that: condition indication circuit comprises LED indication port.
4. encrypted U disk according to claim 1, it is characterized in that: the USB2.0 interface circuit comprises the self-recovering type fuse.
5. encrypted U disk according to claim 1, it is characterized in that: data storage circuitry comprises the NandFlash chip.
6. encrypted U disk according to claim 1, it is characterized in that: safety chip is the safety encipher chip that model is Z8D64U.
7. encrypted U disk according to claim 1 is characterized in that: the clock in clock and reset circuit adopts the 12MHZ crystal oscillator, and reset circuit is the RC electrify restoration circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645938 CN202957047U (en) | 2012-11-29 | 2012-11-29 | Encrypted USB (Universal Serial Bus) flash disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645938 CN202957047U (en) | 2012-11-29 | 2012-11-29 | Encrypted USB (Universal Serial Bus) flash disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957047U true CN202957047U (en) | 2013-05-29 |
Family
ID=48462607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220645938 Expired - Lifetime CN202957047U (en) | 2012-11-29 | 2012-11-29 | Encrypted USB (Universal Serial Bus) flash disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202957047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463983A (en) * | 2017-09-20 | 2017-12-12 | 深圳传音制造有限公司 | Wireless U-disc circuit and wireless U-disc |
-
2012
- 2012-11-29 CN CN 201220645938 patent/CN202957047U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463983A (en) * | 2017-09-20 | 2017-12-12 | 深圳传音制造有限公司 | Wireless U-disc circuit and wireless U-disc |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |