CN105227553A - A kind of mechanical device power circuit for realizing power source change - Google Patents
A kind of mechanical device power circuit for realizing power source change Download PDFInfo
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- CN105227553A CN105227553A CN201510631628.6A CN201510631628A CN105227553A CN 105227553 A CN105227553 A CN 105227553A CN 201510631628 A CN201510631628 A CN 201510631628A CN 105227553 A CN105227553 A CN 105227553A
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- 230000008859 change Effects 0.000 title claims abstract description 18
- 230000002155 anti-virotic effect Effects 0.000 claims abstract description 33
- 241000700605 Viruses Species 0.000 claims description 29
- 230000002147 killing effect Effects 0.000 claims description 20
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 238000013475 authorization Methods 0.000 claims description 5
- 230000003612 virological effect Effects 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012800 visualization Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000035559 beat frequency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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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
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/55—Detecting local intrusion or implementing counter-measures
- G06F21/56—Computer malware detection or handling, e.g. anti-virus arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computing Systems (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Virology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Power Engineering (AREA)
- Storage Device Security (AREA)
Abstract
The invention discloses a kind of mechanical device power circuit for realizing power source change, it is a kind of monolithic bipolar Linear integrated circuit, based on control chip, be exclusively used in DC-DC converter control section, temperature compensation bandgap a reference source is included in sheet, oscillator and High-current output switch, the switching current of 1.5A can be exported, use minimum outward element can form switched mode boost converter, buck converter and reverser, this power circuit also comprises the user authentication module based on many antivirus engines, safety certification is also carried out to the source of file and user in the basis that ensure that the safety of the fileinfo that user is transmitted when function circuit, improve the fail safe of the file attribute information of function circuit further.
Description
Technical field
Patent of the present invention relates to circuit engineering field, in particular to a kind of mechanical device power circuit for realizing power source change.
Background technology
In industrial processes observing and controlling occasion, for the purpose of safety, the bottom layer node equipment being much installed on on-the-spot measuring and controlling or measurement and control network all adopts low-voltage DC supply.The hardware circuit of these devices or device interior is usually the mixed hardware Circuits System of analog circuit based on microprocessor and digital circuit, needs many group DC power supply to power respectively for its digital circuits section and artificial circuit part.In order to obtain the good stability of a system and certainty of measurement, General Requirements numeral with intend the power supply of circuit mutually isolated or any be connected and use multiple-output electric power to be the effective way addressed this problem, early stage making multiple-output electric power 9 people always load several different DC/DC converter groups, the circuit design of this mode is simple, but can cost be strengthened, increase the volume and weight of electric power system, and have the beat frequency interference being difficult to overcome, there is the ripple voltage of the difference of various frequency of oscillation on the output voltage.Therefore the Multiple-output of Switching Power Supply more and more receives the concern of people, because it only has identical frequency with the ripple of DC/DC converter 9 output voltage, beat frequency interference can not occur.Current multiple output converter has 3 kinds of conventional circuit forms: the Multiple coil DC/DC converter of independent filter inductance; The Multiple coil DC/DC converter of coupling inductance; The Multiple coil DC/DC converter of magnetic amplifier secondary pressure, although use multiple output converter module higher than the several different DC-DC converter circuit efficiency of assembling, cost reduces, but is not also optimal selection for small-sized, small-power, low-pressure control module.
Circuit virus is establishment or in the data running in circuit program the destruction circuit function inserted, its can affect circuit normal use and can self-replacation, usually present with the form of set of circuits instruction or assembly code.And antivirus engine is exactly a set ofly judge that whether specific program behavior is the technology mechanism of Virus (comprising suspect program).Antivirus engine is the major part of antivirus software, be the program detecting and find virus, and virus base is the characteristic set of the virus had been found that.In virus killing process, remove all programs in contradistinction system or file by the feature in virus base, for the program or the file that meet these features, be judged to be virus.
Because the virus killing feature of different antivirus engine is different, therefore in order to improve the virus killing effect of antivirus engine, the mode that multiple antivirus engine carries out killing virus has been have employed in prior art, each antivirus engine has respective virus base, the separate operation between each antivirus engine when killing virus, all All Files is scanned, and scanning result is gathered output.Although different antivirus engines has the checking and killing virus function of respective speciality, all consistent to the killing result of major part virus, if therefore many antivirus engines scan All Files simultaneously, waste will be caused to system resource.
And in current circuit engineering field, the further certification of the user to operation file is often have ignored after safe viral scanning is carried out to user file, if cause file security, any user can operate circuit, makes many unsafe user operation circuit cause the damage of circuit.
Summary of the invention:
The technical problem that patent of the present invention solves: based on multiple-channel output converter technique, adopt control chip, use a small amount of peripheral cell, devise a kind of novel, simple, practical multiplex output circuit, can power for digital circuit and analog circuit simultaneously, and make both mutually isolated.And can, to the scheme using the user of circuit to carry out safety certification, prevent unauthorized user from using circuit to cause the damage of circuit function for circuit provides a set of.
Patent of the present invention provides following technical scheme: a kind of mechanical device power circuit for realizing power source change, it is a kind of monolithic bipolar Linear integrated circuit, based on control chip, be exclusively used in DC-DC converter control section, temperature compensation bandgap a reference source is included in sheet, oscillator and High-current output switch, the switching current of 1.5A can be exported, use minimum outward element can form switched mode boost converter, buck converter and reverser, this power circuit also comprises the user authentication module based on many antivirus engines, safety certification is carried out to the input information of the user of function circuit and user profile, with the safety of the user's input information and user self that ensure function circuit.Power circuit also comprises constant-current source, for providing continual and steady operating current for power circuit, many antivirus engines comprise the first and second engines, carry out after scanning virus killing obtains the first result what call that the first antivirus engine to want user to transmit until killing file, call the second antivirus engine and killing is carried out to the secure file based on the first result, export the second result; When the second virus killing result display safety, again safety certification is carried out to user, comprise and certification is carried out to the authorization information of user and attribute information, allows user to being judged as that safe file transmits when user authentication information and attribute information are consistent with the security information preset, otherwise when file is dangerous or user authentication not by time refuse user to the operation of file.
Power circuit also comprises trigger, for being triggered high or low level, control the break-make of output switch pipe, described first antivirus engine adopts virtual machine platform, select Vmare software build virtual platform and create virtual system, and use PEID, OLLYDBG and PEInfo to look into shell instrument to analyze file virus.
Power circuit also comprises comparator, for the voltage threshold in comparison circuit, control the ON time of charging interval and output switch pipe, use PEID, OLLYDBG and PEInfo looks into shell instrument: first scan shell or compiler features with PEID, further use PEInfo analysis tool checks crucial data message, obtain code entrance be not routine .text joint in but .Rdata joint in see input table information again: the RVA of input table is 0x70660, program has only imported these two functions of GetProcAddress and LoadLibraryA in kernel32.dll, 32 bit combinations that this has visualization interface with OLLYDBG are analyzed debugging acid and are analyzed viral source file, can obtain virus code in detail.
The authorization information of described user comprises the username and password of user.
The attribute information of described user comprises the IP address of user, MAC Address, operation historical record and host name thereof.
Described default security information is encrypted.
The encrypting module of full homomorphic cryptography is adopted to be encrypted preset security information, concrete steps are: encryption parameter has p, q and r, wherein p is a positive odd number, q is a very large positive integer, p and q determines at key generation phase, and p is encryption key, and r random number choosing when being encryption, for plaintext m, calculate c=m+2r+pq, obtain ciphertext.
The deciphering module of full homomorphic decryption is adopted to be decrypted preset security information, certification is carried out for user, concrete steps are: for plaintext m=(cmodp) mod2, because p*q is far longer than 2r+m, so (cmodp) mod2=(m+2r) mod2=m, obtain the result of plaintext decryption.
Before the user profile and attribute information of authentication of users, the user profile input user and attribute information encrypt and decrypt.
Adopt PKE cryptographic algorithm to encrypt and decrypt user profile and attribute information, concrete steps are: system sets up algorithm Setup (k). according to the security parameter k of input, export PKI PK and private key SK; Cryptographic algorithm EncPK (M). input PKI PK and message M, selects random number r, exports ciphertext C; Decipherment algorithm Decsk (C). according to decrypted private key SK and ciphertext C, the algorithm output message M. adaptive chosen ciphertext attack safety of input; Under adaptive chosen ciphertext attack, assailant is to the undistinguishable fail safe of challenge ciphertext.
Adopt the obtainable beneficial effect of technical scheme of the application: (1) is based on multiple-channel output converter technique, adopt control chip, use a small amount of peripheral cell, devise a kind of novel, simple, practical multiplex output circuit, can power for digital circuit and analog circuit simultaneously, and make both mutually isolated; (2) utilize secondary antivirus engine to carry out checking and killing virus to file, ensure that the fail safe of file; (3) on the basis of file security, safety certification is carried out to user, ensure that the fail safe of the user of operating system.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, patent of the present invention is described further:
Fig. 1 is the structured flowchart of a kind of power source change controller power circuit of patent of the present invention;
Fig. 2 is the structured flowchart of the user authentication device of the many antivirus engines used in circuit described in patent of the present invention
Fig. 3 is the flow chart of the user authen method based on many antivirus engines described in patent of the present invention.
Symbol description in figure:
100-inputting interface
110-first antivirus engine
120-second antivirus engine
130-user authentication module
140-preset security information database
150-output interface
Embodiment
For realizing the mechanical device power circuit of power source change, it is a kind of monolithic bipolar Linear integrated circuit, based on control chip, be exclusively used in DC-DC converter control section, temperature compensation bandgap a reference source is included in sheet, oscillator and High-current output switch, the switching current of 1.5A can be exported, use minimum outward element can form switched mode boost converter, buck converter and reverser, this power circuit also comprises the user authentication module based on many antivirus engines, safety certification is carried out to the input information of the user of function circuit and user profile, with the safety of the user's input information and user self that ensure function circuit.Power circuit also comprises constant-current source, for providing continual and steady operating current for power circuit, based on the user authentication device of many antivirus engines, wherein, many antivirus engines comprise the first engine 110 and the second engine 120, when user inputs the file of needs operation, call the first antivirus engine 110 couples of users want transmit treat that killing file carries out scanning virus killing and obtains the first result, filter out according to this first result and a collection ofly scanned the virus document obtained by the first antivirus engine 110, afterwards, call the second antivirus engine 120 and killing is carried out to the secure file based on the first result, export the second result, when the second virus killing result display safety, again safety certification is carried out to user, comprise the authentication module 130 authorization information of user and attribute information being carried out to certification, based on the user authentication result of authentication module 130, namely allows user to being judged as that safe file transmits when user authentication information and attribute information are consistent with the security information preset, otherwise when file is dangerous or user authentication not by time refuse user to the operation of file.
Power circuit also comprises trigger, for being triggered high or low level, control the break-make of output switch pipe, described first antivirus engine adopts virtual machine platform, select Vmare software build virtual platform and create virtual system, and use PEID, OLLYDBG and PEInfo to look into shell instrument to analyze file virus.
Power circuit also comprises comparator, for the voltage threshold in comparison circuit, control the ON time of charging interval and output switch pipe, use PEID, OLLYDBG and PEInfo looks into shell instrument: first scan shell or compiler features with PEID, further use PEInfo analysis tool checks crucial data message, obtain code entrance be not routine .text joint in but .Rdata joint in see input table information again: the RVA of input table is 0x70660, program has only imported these two functions of GetProcAddress and LoadLibraryA in kernel32.dll, 32 bit combinations that this has visualization interface with OLLYDBG are analyzed debugging acid and are analyzed viral source file, can obtain virus code in detail.
The authorization information of described user comprises the username and password of user.
The attribute information of described user comprises the IP address of user, MAC Address, operation historical record and host name thereof.
Described default security information is encrypted.
The encrypting module of full homomorphic cryptography is adopted to be encrypted preset security information, concrete steps are: encryption parameter has p, q and r, wherein p is a positive odd number, q is a very large positive integer, p and q determines at key generation phase, and p is encryption key, and r random number choosing when being encryption, for plaintext m, calculate c=m+2r+pq, obtain ciphertext.
The deciphering module of full homomorphic decryption is adopted to be decrypted preset security information, certification is carried out for user, concrete steps are: for plaintext m=(cmodp) mod2, because p*q is far longer than 2r+m, so (cmodp) mod2=(m+2r) mod2=m, obtain the result of plaintext decryption.Before the user profile and attribute information of authentication of users, the user profile input user and attribute information encrypt and decrypt.
Adopt PKE cryptographic algorithm to encrypt and decrypt user profile and attribute information, concrete steps are: system sets up algorithm Setup (k). according to the security parameter k of input, export PKI PK and private key SK; Cryptographic algorithm EncPK (M). input PKI PK and message M, selects random number r, exports ciphertext C; Decipherment algorithm Decsk (C). according to decrypted private key SK and ciphertext C, the algorithm output message M. adaptive chosen ciphertext attack safety of input; Under adaptive chosen ciphertext attack, assailant is to the undistinguishable fail safe of challenge ciphertext.
Above content is only the better embodiment of patent of the present invention, for those of ordinary skill in the art, according to the thought of patent of the present invention, all will change in specific embodiments and applications, this description should not be construed as the restriction to patent of the present invention.
Claims (10)
1. one kind for realizing the mechanical device power circuit of power source change, it is a kind of monolithic bipolar Linear integrated circuit, based on control chip, be exclusively used in DC-DC converter control section, temperature compensation bandgap a reference source is included in sheet, oscillator and High-current output switch, the switching current of 1.5A can be exported, use minimum outward element can form switched mode boost converter, buck converter and reverser, this power circuit also comprises the user authentication module based on many antivirus engines, safety certification is carried out to the input information of the user of function circuit and user profile, with the safety of the user's input information and user self that ensure function circuit.
2. a kind of mechanical device power circuit for realizing power source change as claimed in claim 1, wherein, power circuit also comprises constant-current source, for providing continual and steady operating current for power circuit, the user authentication module of described many antivirus engines comprises the first and second engines, carry out after scanning virus killing obtains the first result what call that the first antivirus engine to want user to transmit until killing file, call the second antivirus engine and killing is carried out to the secure file based on the first result, export the second result; When the second virus killing result display safety, again safety certification is carried out to user, comprise and certification is carried out to the authorization information of user and attribute information, allows user to being judged as that safe file transmits when user authentication information and attribute information are consistent with the security information preset, otherwise when file is dangerous or user authentication not by time refuse user to the operation of file.
3. a kind of mechanical device power circuit for realizing power source change as claimed in claim 2, it is characterized in that, power circuit also comprises trigger, for being triggered high or low level, control the break-make of output switch pipe, described first antivirus engine adopts virtual machine platform, selects Vmare software build virtual platform and create virtual system, and uses PEID, OLLYDBG and PEInfo to look into shell instrument to analyze file virus.
4. a kind of mechanical device power circuit for realizing power source change as claimed in claim 3, it is characterized in that, power circuit also comprises comparator, for the voltage threshold in comparison circuit, control the ON time of charging interval and output switch pipe, use PEID, OLLYDBG and PEInfo looks into shell instrument: first scan shell or compiler features with PEID, further use PEInfo analysis tool checks crucial data message, obtain code entrance be not routine .text joint in but .Rdata joint in see input table information again: the RVA of input table is 0x70660, program has only imported these two functions of GetProcAddress and LoadLibraryA in kernel32.dll, 32 bit combinations that this has visualization interface with OLLYDBG are analyzed debugging acid and are analyzed viral source file, can obtain virus code in detail.
5. a kind of mechanical device power circuit for realizing power source change as claimed in claim 4, is characterized in that: described user profile comprises the username and password of user.
6. a kind of mechanical device power circuit for realizing power source change as claimed in claim 5, is characterized in that: the attribute information of described user comprises the IP address of user, MAC Address, operation historical record and host name thereof.
7. a kind of mechanical device power circuit for realizing power source change as claimed in claim 6, is characterized in that: be encrypted described presupposed information.
8. a kind of mechanical device power circuit for realizing power source change as claimed in claim 7, it is characterized in that, adopt the encrypting module of full homomorphic cryptography to be encrypted preset security information, concrete steps are: encryption parameter has p, q and r, wherein p is a positive odd number, q is a positive integer, p and q determines at key generation phase, and p is encryption key, and r random number choosing when being encryption, for plaintext m, calculate c=m+2r+p*q, obtain ciphertext.
9. a kind of mechanical device power circuit for realizing power source change as claimed in claim 8, it is characterized in that, the deciphering module of full homomorphic decryption is adopted to be decrypted preset security information, certification is carried out for user, concrete steps are: for plaintext m=(cmodp) mod2, p*q is far longer than 2r+m, and (cmodp) mod2=(m+2r) mod2=m, obtains the result of plaintext decryption.
10. a kind of mechanical device power circuit for realizing power source change as claimed in claim 9, it is characterized in that, before the user profile and attribute information of authentication of users, the user profile input user and attribute information encrypt and decrypt, PKE cryptographic algorithm is adopted to encrypt and decrypt user profile and attribute information, concrete steps are: system sets up algorithm Setup (k). according to the security parameter k of input, export PKI PK and private key SK; Cryptographic algorithm EncPK (M). input PKI PK and message M, selects random number r, exports ciphertext C; Decipherment algorithm Decsk (C). according to decrypted private key SK and ciphertext C, the algorithm output message M. adaptive chosen ciphertext attack safety of input; Under adaptive chosen ciphertext attack, assailant is to the undistinguishable fail safe of challenge ciphertext.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631628.6A CN105227553A (en) | 2015-09-29 | 2015-09-29 | A kind of mechanical device power circuit for realizing power source change |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631628.6A CN105227553A (en) | 2015-09-29 | 2015-09-29 | A kind of mechanical device power circuit for realizing power source change |
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| CN105227553A true CN105227553A (en) | 2016-01-06 |
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| CN201510631628.6A Pending CN105227553A (en) | 2015-09-29 | 2015-09-29 | A kind of mechanical device power circuit for realizing power source change |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647440A (en) * | 2013-11-08 | 2014-03-19 | 上海华力微电子有限公司 | Soft-start circuit and DC-DC circuit including soft-start circuit |
| CN104868731A (en) * | 2014-02-21 | 2015-08-26 | 东莞钜威新能源有限公司 | Bidirectional isolation DC-DC converter |
| CN106446679A (en) * | 2015-08-05 | 2017-02-22 | 江苏金源锻造股份有限公司 | Power circuit of mechanical apparatus of low-wind-speed wind power unit |
-
2015
- 2015-09-29 CN CN201510631628.6A patent/CN105227553A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647440A (en) * | 2013-11-08 | 2014-03-19 | 上海华力微电子有限公司 | Soft-start circuit and DC-DC circuit including soft-start circuit |
| CN104868731A (en) * | 2014-02-21 | 2015-08-26 | 东莞钜威新能源有限公司 | Bidirectional isolation DC-DC converter |
| CN106446679A (en) * | 2015-08-05 | 2017-02-22 | 江苏金源锻造股份有限公司 | Power circuit of mechanical apparatus of low-wind-speed wind power unit |
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