CN103870722A - Hardware device with built-in singlechip - Google Patents
Hardware device with built-in singlechip Download PDFInfo
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- CN103870722A CN103870722A CN201410077149.XA CN201410077149A CN103870722A CN 103870722 A CN103870722 A CN 103870722A CN 201410077149 A CN201410077149 A CN 201410077149A CN 103870722 A CN103870722 A CN 103870722A
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- 238000004891 communication Methods 0.000 claims description 15
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- 238000005516 engineering process Methods 0.000 description 5
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- 230000008859 change Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012958 reprocessing Methods 0.000 description 3
- 238000012552 review Methods 0.000 description 3
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/12—Protecting executable software
- G06F21/121—Restricting unauthorised execution of programs
- G06F21/123—Restricting unauthorised execution of programs by using dedicated hardware, e.g. dongles, smart cards, cryptographic processors, global positioning systems [GPS] devices
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Abstract
The invention discloses a hardware device with a built-in singlechip. The singlechip is electrically isolated from the hardware device, moreover, power is supplied to the singlechip in a separate manner, and the hardware device communicates with the singlechip in an optical coupling isolation manner, so that data information can be read from or written into the singlechip. External high voltage application and other malicious methods can be effectively prevented from damaging the hardware device with the built-in singlechip to return the hardware device in order to obtain extra benefit, and thereby the interest of the developer is guaranteed; meanwhile, the invention also reduces manual intervention, decreases the probability of mistakes, increases working efficiency and saves cost.
Description
Technical field
The present invention relates to data communication field, relate in particular to a kind of hardware device of built-in single-chip microcomputer.
Background technology
Software protecting equipment is that one is connected to the hardware device on main frame by computer interface (including but not limited to parallel port or USB interface).This device interior has nonvolatile storage space can, for read-write, also have the calculation processing unit such as single-chip microcomputer or micro-processing controls chip conventionally.Software developer can carry out exchanges data (software protecting equipment being read and write) by interface function and software protecting equipment, checks whether software protecting equipment is inserted on interface; Or be directly encrypted with the subsidiary instrument of software protecting equipment.Like this, software developer can arrange many places software locks in software, utilizes software protecting equipment to open these locks as key; If it is not corresponding not insert software protecting equipment or software protecting equipment, software can not normally be carried out.
In addition, software protecting equipment inside comprises specific function, for example a part of storage space, some cryptographic algorithms or some user-defined algorithm or function.Before software publishing; software developer revises the software code of oneself; make software in operational process, need to use some functions of software protecting equipment inside; software will move after leaving software protecting equipment like this; and the difficulty that software protecting equipment copies as a kind of hardware device is larger, thereby play the illegal effect of propagating of piracy software that prevents.
Software protecting equipment main on Vehicles Collected from Market comprises: WIBU-Key of the Elite series of the Sentinel Superpro of SafeNet company of the U.S., the Hasp HL of Aladdin company of Israel, BeiJing, China's deep thinking Luo Ke software incorporated company, German Wi-Bu company etc.All these software protecting equipments all provide built-in storage space, privately owned or disclosed cryptographic algorithm, check whether belong to legal when calling these functions in software running process.These software protecting equipments have adopted the basis of intelligent card chip as hardware; and the function of supporting user that oneself is defined is written to software protecting equipment inside; even can directly the partial function of software be transplanted to software protecting equipment inside completes; thereby greatly improve the difficulty of software pirate version, conventionally claimed that this technology that the function of oneself definition or the partial function of software are transplanted to software protecting equipment inside is that code is transplanted.
In prior art, circuit board carrier and shell three parts that software protecting equipment generally includes USB head, is connected with USB head as hardware.Wherein, on circuit board carrier, mainly comprise main control chip (as intelligent card chip) and some peripheral circuits, as peripheral clock circuit, peripheral power supply circuit etc.The supply voltage of computing machine USB mouth is at 4.75-5.25V, and the voltage that main control chip can bear according to the difference of chip can be different, but generally all at 8V or below 8V.
When the manufacturer of software protecting equipment produces and sells this hardware device; in the shell of equipment or external packing, generally can be printed with mark and/or the extend information of hardware device; user can be by checking or obtain by mark search the details of hardware device; because apparatus enclosure is easily dropped; the information such as the identifier number of printing on device housings are because of of long duration, frequent use friction or water and the erosion of other chemicals; also easily cause the equipment identification information of printing on shell fuzzy, come off, be beyond recognition.Manufacturer or commission merchant be owing to selling remarks or for reprocessing, change hardware device, store in conventionally can the chip on device interior circuit board some equipment identification information (at least comprise unique ID, can also comprise model, batch, production time etc.).
After manufacturer, commission merchant sell a large amount of hardware devices, may exist because external force (as fall, collide with) or other reasons cause damaging and cannot use as hardware device.For because of damage or other reasons cause the hardware device of reprocessing or returning goods, normally it is connected with main frame by interface, confirm the ID of hardware device by reading canned data in hardware device inside chip, thereby further review hardware model, batch, the essential information such as price, production time so as to carry out follow-up maintenance, reissue, the measure such as reparation.
Therefore, some lawless person utilizes this leak, the means malice that adds high voltage and so on by outside is damaged hardware device circuit, main control chip, makes to read chip information, thereby pretends to be High Value Unit to replace or seek compensation for etc. to obtain extra interests with low value equipment.Such as being added to high voltage by outside, damages low value equipment, because the chip of the information such as memory device in equipment is damaged and cannot obtain hardware device information, lawless person changes High Value Unit or the amount of compensation by beaming back former factory, and this has just caused the loss of developer's interests.In addition, also there is the damage of the plug (as USB head) that causes due to external force or other situations or device interior physical arrangement and the situation of None-identified.
Summary of the invention
The invention provides a kind of hardware device of built-in single-chip microcomputer, thereby can effectively avoid adding by outside the malice mode damage equipments such as high voltage and return equipment to obtain additional benefit, ensure developer's interests, also reduced manual intervention simultaneously, reduce the probability of makeing mistakes, increased work efficiency, save cost.
In order to solve the problems of the technologies described above, the invention provides a kind of hardware device of built-in single-chip microcomputer, described single-chip microcomputer and described hardware device electrical isolation are also powered to described single-chip microcomputer with independent isolation method, described hardware device is realized and being communicated by letter by light-coupled isolation mode with described single-chip microcomputer, to read from described single-chip microcomputer or to described single-chip microcomputer data writing information.
As preferably, described single-chip microcomputer is isolated power supply mode and external power supply electrical connection by wireless coil, wherein:
Described external power supply is electrically connected with the primary coil of wireless power coil, and described single-chip microcomputer is electrically connected with the secondary coil of wireless power coil.
As preferably, the data message that described hardware device reads from described single-chip microcomputer comprises the information that is pre-stored in the described hardware device described single-chip microcomputer.
As preferably, the information that is pre-stored in the described hardware device in described single-chip microcomputer comprises hardware device identification information.
As preferably, the data message that described hardware device writes to described single-chip microcomputer comprises the information that needs the described hardware device that writes described single-chip microcomputer in the use procedure of described hardware device, and this information exchange is crossed photoelectric coupling communication and is written in described single-chip microcomputer.
As preferably, the information that is written to the described hardware device in described single-chip microcomputer by photoelectric coupling communication comprises hardware device identification information.
As preferably, described hardware device identification information comprises the device id of described hardware device.
As preferably, described hardware device identification information also comprise described hardware device model, batch, production time and/or equipment state.
As preferably, described hardware device is encryption lock.
As preferably, described data message is encrypted by cryptographic algorithm, and described cryptographic algorithm comprises symmetry or asymmetric arithmetic, XOR cryptographic algorithm or Custom Encryption algorithm.
Compared with prior art, the beneficial effect of hardware device of the present invention and management method thereof is: by increasing single-chip microcomputer in hardware device inside, single-chip microcomputer is isolated power supply by wireless coil, single-chip microcomputer is communicated by letter by light-coupled isolation with hardware device chip, the hardware device identification information that can prestore in single-chip microcomputer, or hardware device writes hardware device mark and other authentic communications by the communication mode of light-coupled isolation in single-chip microcomputer in use.Owing to being isolation between single-chip microcomputer and hardware device circuit, therefore, can damage even if add the malice modes such as high voltage by outside the hardware device chip being connected with circuit, the single-chip microcomputer of isolation is not but affected.By hardware device provided by the invention, can avoid because of equipment plug or the damage of equipment physical arrangement, also or thereby add the malice modes such as high voltage damages hardware device chip and replace the behavior of obtaining additional benefit by outside, can reduce manual intervention simultaneously, reduce the probability of makeing mistakes, save cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hardware device of the built-in single-chip microcomputer of embodiments of the invention.
Embodiment
The hardware device of the built-in single-chip microcomputer below in conjunction with the drawings and specific embodiments to embodiments of the invention is described in further detail, but not as a limitation of the invention.
Fig. 1 is the structural representation of the hardware device of the built-in single-chip microcomputer of embodiments of the invention.The hardware device of the built-in single-chip microcomputer of embodiments of the invention, single-chip microcomputer and hardware device electrical isolation are also powered to single-chip microcomputer with independent isolation method, hardware device is realized and being communicated by letter by light-coupled isolation mode with single-chip microcomputer, to read from single-chip microcomputer or to single-chip microcomputer data writing information.By the single-chip microcomputer of powering separately in the inner increase of hardware device, can avoid because of equipment plug or the damage of equipment physical arrangement, or thereby add the malice modes such as high voltage damages hardware device chip and replace the behavior of obtaining additional benefit by outside, can reduce manual intervention simultaneously, reduce the probability of makeing mistakes, save cost.Single-chip microcomputer and hardware device (for example internal circuit, chip) communicate by the mode of light-coupled isolation, realize the data information exchange of hardware device and single-chip microcomputer on the basis of electrical isolation.Because power supply and the communication of single-chip microcomputer are all isolated with hardware device circuit, therefore, thereby when having when adding the malice modes such as high voltage by outside and damaging hardware device and replace High Value Unit, developer can be by reading the information such as the device identification of storing in single-chip microcomputer, obtain equipment mark, model, batch and/or the information such as price.And can in inner equipment information database, increase the information such as the follow-up maintenance associated with this hardware device ID.
Improve as one, single-chip microcomputer is isolated power supply mode and external power supply electrical connection by wireless coil, to realize the power supply to single-chip microcomputer.As shown in Figure 1, the main control chip electrical isolation of single-chip microcomputer and hardware device, and communicate by letter by light-coupled isolation.Meanwhile, hardware device is connected the power supply realizing hardware device with external power supply by plug, and isolate to realize the wireless power to single-chip microcomputer by wireless coil between single-chip microcomputer and feed circuit.Wireless power technology can adopt the modes such as electromagnetic induction, electromagnetic coupled, photoelectric coupling, electromagentic resonance to realize.In the present embodiment, adopting wireless power coil is the principle based on transmitting and change magnetic flux, and the electromagnetic induction between primary coil and secondary coil is sent to secondary coil to realize electric energy transmission electromagnetic energy by primary coil.In order to illustrate in greater detail the present invention, further introduce the relevant technologies of light-coupled isolation at this.Photoisolator (Optoelectronic Isolator, OC) also claim photoelectrical coupler, photo-coupler, is called for short optocoupler.Photo-coupler is take light as media transmission electric signal.It has good buffer action to input, output electrical signals.Photo-coupler is generally made up of three parts: the transmitting of light, the reception of light and signal method.The electric signal of input drives light emitting diode (LED), makes it to send the light of certain wavelength, is received and produces photocurrent, then export after further amplification by photo-detector.This has just completed the conversion of electrical-optical-electricity, thereby plays the effect of input, output, isolation.
Light-coupled isolation adopts photo-coupler to isolate exactly, and the structure of photo-coupler is equivalent to light emitting diode and photosensitive (three utmost points) pipe to be packaged together.Light emitting diode is converted to light signal the electric signal of input and passes to photosensitive tube and be converted to electric signal output, due to not directly electrical connection, photo-coupler input, outlet chamber are isolated mutually, electric signal transmission has the features such as one-way, thereby has good electrical isolation capabilities and antijamming capability.Belong to again the low resistance element of current mode work due to the input end of photo-coupler, thereby there is very strong common mode inhibition capacity.So, in long line transmission information, can greatly improve signal to noise ratio (S/N ratio) as terminal isolated component.In Computer digital communication and control in real time, as the interface device of signal isolation, can greatly increase the reliability of computer operation.
As further improvement, the data message that hardware device reads from single-chip microcomputer comprises the information being pre-stored in single-chip microcomputer, for example, include but not limited to the authentic communications such as hardware device identification information.
As further improving, the data message that hardware device writes to single-chip microcomputer comprises the information that needs the hardware device that writes single-chip microcomputer in the use procedure of hardware device, this information exchange is crossed photoelectric coupling communication and is written in single-chip microcomputer, and this information can include but not limited to hardware device identification information.
As the preferred version of this enforcement, hardware device identification information at least should comprise that hardware device ID(is unique ID of hardware device).Further, hardware device identification information can also comprise hardware device model, batch, production time and/or equipment state.
Improve as another kind, hardware device can be that encryption lock, portable hard drive, digital camera, mouse, MP3 or USB Key etc. need to review processing, or in the time reprocessing or change, need inquire about the hardware device of its model, batch information.The hardware device of the present embodiment is encryption lock, and further, for improving security, data message (comprise canned data in single-chip microcomputer or by equipment main control chip to the information writing in single-chip microcomputer) is encrypted by cryptographic algorithm, and cryptographic algorithm comprises symmetry or asymmetric arithmetic, XOR cryptographic algorithm or Custom Encryption algorithm.
Below pass through embodiment, and accompanying drawings practical application of the present invention.
In the present embodiment, hardware device is encryption lock, increases a single-chip microcomputer in the inner rear end of encryption lock, and single-chip microcomputer and encryption lock circuit, chip do not have direct physical connection, single-chip microcomputer is isolated power supply by wireless coil, and single-chip microcomputer is communicated by letter by light-coupled isolation with encryption lock main control chip.
When encryption lock dispatches from the factory, the identification informations such as unique ID of encryption lock have prestored in its main control chip, when encryption lock in use, encryption lock main control chip can write authentic communication (as encryption lock information and/or user profile etc.) by light-coupled isolation communication mode in single-chip microcomputer.
Above-mentioned encryption lock main control chip is to data writing information in single-chip microcomputer, can be to power on for the first time while using and write at encryption lock, and can be also default certain frequency in lock, it writes opportunity can self-defining, can comprise various ways.
Thereby add the malice means such as high voltage damages while returning factory when encryption lock by external force or by lawless person by outside, manufacturer or developer can be by reading the hardware device identification information of storing in single-chip microcomputer, thereby by inner equipment information database review query facility model, batch, the details such as price, can also in equipment information database, upgrade and remarks for follow-up processing (as maintenance, replacing etc.).
The beneficial effect of hardware device of the present invention and management method thereof is: by increasing single-chip microcomputer in hardware device inside, the mode of isolating by wireless coil is powered to single-chip microcomputer, single-chip microcomputer is communicated by letter by light-coupled isolation with hardware device chip, the hardware device identification information that can prestore in single-chip microcomputer, or hardware device writes hardware device mark and other authentic communications by light-coupled isolation communication mode in single-chip microcomputer in use.Because single-chip microcomputer and hardware device circuit are isolations, therefore, can damage even if add the malice modes such as high voltage by outside the hardware device chip being connected with circuit, the single-chip microcomputer of isolation is not but affected.By hardware device provided by the invention, can avoid because of equipment plug or the damage of equipment physical arrangement, also or thereby add the malice modes such as high voltage damages hardware device chip and replace the behavior of obtaining additional benefit by outside, can reduce manual intervention simultaneously, reduce the probability of makeing mistakes, save cost.
Above embodiment is only exemplary embodiment of the present invention, is not used in restriction the present invention, and protection scope of the present invention is defined by the claims.Those skilled in the art can, in essence of the present invention and protection domain, make various modifications or be equal to replacement the present invention, this modification or be equal to replacement and also should be considered as dropping in protection scope of the present invention.
Claims (10)
1. the hardware device of a built-in single-chip microcomputer, it is characterized in that, described single-chip microcomputer and described hardware device electrical isolation are also powered to described single-chip microcomputer with independent isolation method, described hardware device is realized and being communicated by letter by light-coupled isolation mode with described single-chip microcomputer, to read from described single-chip microcomputer or to described single-chip microcomputer data writing information.
2. the hardware device of built-in single-chip microcomputer according to claim 1, is characterized in that, described single-chip microcomputer is isolated power supply mode and external power supply electrical connection by wireless coil, wherein:
Described external power supply is electrically connected with the primary coil of wireless power coil, and described single-chip microcomputer is electrically connected with the secondary coil of wireless power coil.
3. the hardware device of built-in single-chip microcomputer according to claim 1, is characterized in that, the data message that described hardware device reads from described single-chip microcomputer comprises the information that is pre-stored in the described hardware device described single-chip microcomputer.
4. the hardware device of built-in single-chip microcomputer according to claim 3, is characterized in that, the information that is pre-stored in the described hardware device in described single-chip microcomputer comprises hardware device identification information.
5. the hardware device of built-in single-chip microcomputer according to claim 1, it is characterized in that, the data message that described hardware device writes to described single-chip microcomputer comprises the information that needs the described hardware device that writes described single-chip microcomputer in the use procedure of described hardware device, and this information exchange is crossed photoelectric coupling communication and is written in described single-chip microcomputer.
6. the hardware device of built-in single-chip microcomputer according to claim 5, is characterized in that, the information that is written to the described hardware device in described single-chip microcomputer by photoelectric coupling communication comprises hardware device identification information.
7. according to the hardware device of the built-in single-chip microcomputer described in claim 4 or 6, it is characterized in that, described hardware device identification information comprises the device id of described hardware device.
8. the hardware device of built-in single-chip microcomputer according to claim 7, is characterized in that, described hardware device identification information also comprise described hardware device model, batch, production time and/or equipment state.
9. the hardware device of built-in single-chip microcomputer according to claim 1, is characterized in that, described hardware device is encryption lock.
10. the hardware device of built-in single-chip microcomputer according to claim 1, is characterized in that, described data message is encrypted by cryptographic algorithm, and described cryptographic algorithm comprises symmetry or asymmetric arithmetic, XOR cryptographic algorithm or Custom Encryption algorithm.
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| CN201410077149.XA CN103870722B (en) | 2014-03-04 | 2014-03-04 | The hardware device of built-in single-chip microcomputer |
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| CN201410077149.XA CN103870722B (en) | 2014-03-04 | 2014-03-04 | The hardware device of built-in single-chip microcomputer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104463022A (en) * | 2014-10-31 | 2015-03-25 | 北京深思数盾科技有限公司 | Hardware device with self-protection function |
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| CN200950219Y (en) * | 2006-08-23 | 2007-09-19 | 王建成 | Control circuit for electric activator |
| CN102324050A (en) * | 2011-04-19 | 2012-01-18 | 佛山市瑞德软件科技有限公司 | Method and dedicated device for recording information of home appliance controller by using RFID (Radio Frequency Identification Device) chip |
| CN102968325A (en) * | 2012-12-04 | 2013-03-13 | 北京深思洛克软件技术股份有限公司 | USB (Universal Serial Bus) equipment and method and device for automatically initializing same |
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2014
- 2014-03-04 CN CN201410077149.XA patent/CN103870722B/en active Active
Patent Citations (4)
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| CN200950219Y (en) * | 2006-08-23 | 2007-09-19 | 王建成 | Control circuit for electric activator |
| CN101018056A (en) * | 2007-02-16 | 2007-08-15 | 中国科学院武汉物理与数学研究所 | Rb atom frequency standard digital servo device |
| CN102324050A (en) * | 2011-04-19 | 2012-01-18 | 佛山市瑞德软件科技有限公司 | Method and dedicated device for recording information of home appliance controller by using RFID (Radio Frequency Identification Device) chip |
| CN102968325A (en) * | 2012-12-04 | 2013-03-13 | 北京深思洛克软件技术股份有限公司 | USB (Universal Serial Bus) equipment and method and device for automatically initializing same |
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| CN104463022A (en) * | 2014-10-31 | 2015-03-25 | 北京深思数盾科技有限公司 | Hardware device with self-protection function |
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| CN103870722B (en) | 2017-08-25 |
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