CN204557492U - A kind of data in magnetic disk encrypted circuit plate - Google Patents
A kind of data in magnetic disk encrypted circuit plate Download PDFInfo
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- CN204557492U CN204557492U CN201520228950.XU CN201520228950U CN204557492U CN 204557492 U CN204557492 U CN 204557492U CN 201520228950 U CN201520228950 U CN 201520228950U CN 204557492 U CN204557492 U CN 204557492U
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- circuit plate
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- encrypted circuit
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- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000006870 function Effects 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Abstract
The utility model discloses a kind of data in magnetic disk encrypted circuit plate, relates to information security field, and for being encrypted data in hard disk, its structure comprises encryption chip and power unit, clock part; Be connected between computer motherboard and hard disk, all data communication between mainboard and hard disk are all through encrypted circuit plate, and described encrypted circuit plate mates corresponding with described hard disk one by one, to hard disk write or could read data by the encrypted circuit plate of coupling.Like this hard disk is put into other computing machines or change the information that encrypted circuit plate all can not read hard disk, the security of effective protection calculation machine hard disc data.
Description
Technical field
The utility model relates to information security field, specifically a kind of data in magnetic disk encrypted circuit plate.
Background technology
At present, along with the fast development of computer information technology, informatization all plays a part very crucial in all trades and professions.But informationization brings quick with simultaneously easily, also reduces the security of information.All may there is leak in the critical component of computers such as BIOS, hard disk, operating system, cause threat to information security.Therefore, information security will become the key link of informatization.
Domestic fixed disk data enciphering chip BHD5-AS5 is embedded with hard-wired 256 AES encryption algorithms and national Password Management office SM1 cryptographic algorithm, can realize the full disk encryption to memory disk or point zone encryption.In addition, BHD5-AS5 chip is embedded with by hard-wired national Password Management office SM2 cryptographic algorithm and SM3 cryptographic algorithm, the function of identification can be realized, guarantee the security of data, be applicable to the occasion that business, national defence, government etc. are higher to security request data.
Summary of the invention
The weak point that the utility model exists for prior art, provides a kind of data in magnetic disk encrypted circuit plate.
A kind of data in magnetic disk encrypted circuit plate described in the utility model, the technical scheme solving the problems of the technologies described above employing is as follows: this data in magnetic disk encrypted circuit plate is used for being encrypted data in hard disk, be connected between computer motherboard and hard disk, all data communication between mainboard and hard disk are all through encrypted circuit plate, and described encrypted circuit plate mates corresponding with described hard disk one by one; Its structure comprises encryption chip and power unit.
Preferably, described encryption chip adopts BHD5-AS5 encryption chip.
Preferably, each function bus of described BHD5-AS5 encryption chip to interconnect CPU, Installed System Memory and each function IP for organizing hinge.
Preferably, the function bus of described BHD5-AS5 encryption chip is divided into data bus, configuration bus and peripheral bus.
Preferably, the output voltage of described power unit comprises 3.3V and 1.2V, and output voltage 3.3V is the input/output port voltage of BHD5-AS5 encryption chip, and 1.2V is the core operational voltage of BHD5-AS5 encryption chip.
Preferably, described encrypted circuit plate also comprises clock part, this encrypted circuit plate is provided with three kinds of clocks: system master clock, USB PHY clock, SATA PHY clock.
Preferably, described system master clock is 24MHz, is provided by active crystal oscillator; USB PHY clock is 12MHz; SATA PHY clock adopts 25MHz, is provided by active differential crystal oscillator.
Preferably, described encrypted circuit plate also comprises SATA interface or/and usb segment, and described SATA interface is or/and USB interface is directly connected to the corresponding signal pin of BHD5-AS5 encryption chip.
Preferably, described power unit is also provided with 5V output voltage, and the supply voltage of USB2.0 interface is the 5V output voltage of described power unit.
The beneficial effect that a kind of data in magnetic disk encrypted circuit plate of the present utility model compared with prior art has is: this encrypted circuit plate is connected between computer motherboard and hard disk, all data communication between mainboard and hard disk all need through encrypted circuit plate, only have the encrypted circuit plate by mating with hard disk to read to hard disk or to write data; Like this hard disk is put into other computing machines or change the information that encrypted circuit plate all can not read hard disk, substantially increase the security of data in hard disk; And this encrypted circuit plate is novel in design, structure is simple, cost is lower, therefore has good popularizing value.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic block diagram of described data in magnetic disk encrypted circuit plate.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, a kind of data in magnetic disk encrypted circuit plate described in the utility model is further described.
A kind of data in magnetic disk encrypted circuit plate described in the utility model, for being encrypted data in hard disk.This encrypted circuit plate is connected between computer motherboard and hard disk, and all data communication between mainboard and hard disk all need through encrypted circuit plate; And described encrypted circuit plate mates corresponding with described hard disk one by one, could write data by the encrypted circuit plate of coupling to hard disk, also only have could from hard disk sense data by the encrypted circuit plate of coupling simultaneously.Like this hard disk is put into other computing machines or change the information that encrypted circuit plate all can not read hard disk, reinstall system or disk format needs, by the encrypted circuit plate of coupling, to add the security of data in hard disk equally.
Embodiment 1:
Described in the present embodiment, a kind of data in magnetic disk encrypted circuit plate, comprises encryption chip and power unit.
Encryption chip described in the present embodiment adopts BHD5-AS5 encryption chip, its data-handling capacity is much larger than the encryption/decryption module unit of the fastest transmission interface, encryption/decryption module unit is connected across between two data-carrier stores, directly can read data and carry out encryption and decryption operation, result be dumped in another one data-carrier store simultaneously.While data being encrypted by this BHD5-AS5 encryption chip, reduce data information transfer speed hardly, and each function bus of BHD5-AS5 encryption chip to interconnect CPU, Installed System Memory and each function IP for organizing hinge.The function bus of described BHD5-AS5 encryption chip is divided into data bus, configuration bus and peripheral bus.
Power unit described in the present embodiment, output voltage comprises these three kinds of voltages of 5V, 3.3V and 1.2V.Output voltage 3.3V is the input/output port voltage of BHD5-AS5 encryption chip, and 1.2V is the core operational voltage of BHD5-AS5 encryption chip.Further, two kinds of voltages of 3.3V and 1.2V are converted to respectively by XC9236A33CMR and XC9236A12CMR two voltage conversion chip, and this two voltage conversion chip is all efficient DC/DC power conversion chips.Meanwhile, 3.3V and 1.2V two kinds of voltages all carry out filtering by the electric capacity of different capacitance.
Embodiment 2:
Described in the present embodiment, a kind of data in magnetic disk encrypted circuit plate, on the basis of embodiment 1, as shown in Figure 1, also comprises clock part, and is provided with three kinds of clocks on this encrypted circuit plate: system master clock, USB PHY clock, SATA PHY clock.Wherein, system master clock is 24MHz, is provided by active crystal oscillator; USB PHY clock is 12MHz; SATA PHY clock adopts 25MHz, is provided by active differential crystal oscillator.
Simultaneously, described in the present embodiment, encrypted circuit plate also comprises SATA interface or/and usb segment, described SATA interface is or/and USB interface is directly connected to the corresponding signal pin of BHD5-AS5 encryption chip, and the supply voltage of USB2.0 interface is the 5V output voltage of described power unit.
From the technical solution of the utility model, this encrypted circuit plate can use in many industries such as encrypted card, safety mobile hard disc, safe recording optical driver, control terminal; Through checking; this encrypted circuit plate can the security of effective protection calculation machine hard disc data; as long as the password of encrypted circuit plate does not leak; other staff cannot see the content stored in hard disk; even if be have read the information in hard disk by technological means, the content that it stores also cannot be cracked.
Above-mentioned embodiment is only concrete case of the present utility model; scope of patent protection of the present utility model includes but not limited to above-mentioned embodiment; any meet claims of the present utility model and any person of an ordinary skill in the technical field to its suitable change done or replacement, all should fall into scope of patent protection of the present utility model.
Claims (9)
1. a data in magnetic disk encrypted circuit plate, it is characterized in that, this data in magnetic disk encrypted circuit plate is used for being encrypted data in hard disk, be connected between computer motherboard and hard disk, all data communication between mainboard and hard disk are all through encrypted circuit plate, and described encrypted circuit plate mates corresponding with described hard disk one by one; Its structure comprises encryption chip and power unit.
2. a kind of data in magnetic disk encrypted circuit plate according to claim 1, is characterized in that, described encryption chip adopts BHD5-AS5 encryption chip.
3. a kind of data in magnetic disk encrypted circuit plate according to claim 2, is characterized in that, each function bus of described BHD5-AS5 encryption chip to interconnect CPU, Installed System Memory and each function IP for organizing hinge.
4. a kind of data in magnetic disk encrypted circuit plate according to claim 3, it is characterized in that, the function bus of described BHD5-AS5 encryption chip is divided into data bus, configuration bus and peripheral bus.
5. according to the arbitrary described a kind of data in magnetic disk encrypted circuit plate of claim 2 to 4, it is characterized in that, the output voltage of described power unit comprises 3.3V and 1.2V, output voltage 3.3V is the input/output port voltage of BHD5-AS5 encryption chip, and 1.2V is the core operational voltage of BHD5-AS5 encryption chip.
6. a kind of data in magnetic disk encrypted circuit plate according to claim 5, it is characterized in that, described encrypted circuit plate also comprises clock part, this encrypted circuit plate is provided with three kinds of clocks: system master clock, USB PHY clock, SATA PHY clock.
7. a kind of data in magnetic disk encrypted circuit plate according to claim 6, it is characterized in that, described system master clock is 24MHz, is provided by active crystal oscillator; USB PHY clock is 12MHz; SATA PHY clock adopts 25MHz, is provided by active differential crystal oscillator.
8. a kind of data in magnetic disk encrypted circuit plate according to claim 7, it is characterized in that, described encrypted circuit plate also comprises SATA interface or/and usb segment, and described SATA interface is or/and USB interface is directly connected to the corresponding signal pin of BHD5-AS5 encryption chip.
9. a kind of data in magnetic disk encrypted circuit plate according to claim 8, it is characterized in that, described power unit is also provided with 5V output voltage, and the supply voltage of USB2.0 interface is the 5V output voltage of described power unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228950.XU CN204557492U (en) | 2015-04-16 | 2015-04-16 | A kind of data in magnetic disk encrypted circuit plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520228950.XU CN204557492U (en) | 2015-04-16 | 2015-04-16 | A kind of data in magnetic disk encrypted circuit plate |
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| Publication Number | Publication Date |
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| CN204557492U true CN204557492U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520228950.XU Active CN204557492U (en) | 2015-04-16 | 2015-04-16 | A kind of data in magnetic disk encrypted circuit plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI686724B (en) * | 2018-07-27 | 2020-03-01 | 威剛科技股份有限公司 | Storage with encryption and decryption function and application system thereof |
| CN113051533A (en) * | 2021-03-29 | 2021-06-29 | 郑州中科集成电路与信息系统产业创新研究院 | Safety management method of terminal equipment |
-
2015
- 2015-04-16 CN CN201520228950.XU patent/CN204557492U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI686724B (en) * | 2018-07-27 | 2020-03-01 | 威剛科技股份有限公司 | Storage with encryption and decryption function and application system thereof |
| CN113051533A (en) * | 2021-03-29 | 2021-06-29 | 郑州中科集成电路与信息系统产业创新研究院 | Safety management method of terminal equipment |
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| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20230517 Address after: 250000 building S02, No. 1036, Langchao Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Inspur Scientific Research Institute Co.,Ltd. Address before: No. 1036, Shun Ya Road, Ji'nan high tech Zone, Shandong Province Patentee before: INSPUR GROUP Co.,Ltd. |