CN105573267A - Intelligent household safety control system based on AES - Google Patents
Intelligent household safety control system based on AES Download PDFInfo
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Abstract
The invention relates to the intelligent household control technology field and especially relates to an intelligent household safety control system based on AES. By using the system, transmission data can be effectively protected, leakage is prevented and information transmission safety is increased. The system comprises a power supply module. The system is characterized in that the system comprises an intelligent family gateway; the intelligent family gateway is connected with a first single-chip microcomputer; the first single-chip microcomputer is connected with a first transceiver module; the first transceiver module is in wireless communication connection with a second transceiver module; the second transceiver module is connected with a second single-chip microcomputer; the second single-chip microcomputer is connected with a sensing module and a display module; the sensing module is connected with a terminal device; the terminal device is connected with the intelligent family gateway; and the first single-chip microcomputer and the second single-chip microcomputer comprise AES encryption and decryption modules; the AES encryption and decryption modules realize encryption and decryption of the transmission data of the first single-chip microcomputer and the second single-chip microcomputer.
Description
Technical field
The present invention relates to technical field of intelligent home control, be specially a kind of Smart Home safety control system based on AES.
Background technology
Smart Home take house as platform, utilize comprehensive wiring technology, the network communications technology, security precautions technology, automatic control technology, audio frequency and video technology by integrated for facility relevant for life staying idle at home, build the management system of efficient housing facilities and family's schedule affairs, promote house security, convenience, comfortableness, artistry, and realize the living environment of environmental protection and energy saving.
Compared with common household, Smart Home not only has traditional inhabitation function, have both building, network service, information household appliances, equipment automatization, efficient, comfortable, safety, facility that collecting system, structure, service, management are integrated, the living environment of environmental protection, provide omnibearing information interaction function.Help family to keep information interchange unimpeded with outside, optimize the life style of people, help people effectively to arrange the time, strengthen the security of life staying idle at home, even economize on the use of funds for various energy expenditure.
Along with the raising of science and technology, expanding economy, the living standard of people is also constantly improved, also more and more higher to the requirement of domestic environment, due to the existence of Internet Transmission, the potential safety hazard of information leakage can be there is when the information transmission of the equipment of Smart Home, bring unnecessary loss to user, affect the normal use of intelligent home device.
Summary of the invention
In order to solve the problem, the invention provides a kind of Smart Home safety control system based on AES, it can effectively be protected transmission data, and Leakage prevention, increases the security of information transmission.
Its technical scheme is such: a kind of Smart Home safety control system based on AES, it comprises power module, it is characterized in that, it comprises intelligent home gateway, described intelligent home gateway connects the first single-chip microcomputer, described first single-chip microcomputer connects the first transceiver module, described first transceiver module radio communication connects the second transceiver module, described second transceiver module connects second singlechip, described second singlechip connects sensing module, display module, described sensing module connects terminal device, described terminal device connects intelligent home gateway, described first single-chip microcomputer, second singlechip comprises AES encryption deciphering module, described AES encryption deciphering module realizes described first single-chip microcomputer, the encryption and decryption of second singlechip transmission data.
It is further characterized in that, described first single-chip microcomputer, second singlechip are C8051F020 single-chip microcomputer;
Second singlechip also connects alarm module and load module;
Described sensing module comprises sensor souser and tripod selector switch S5,7th pin of described sensor souser connects second pin of electric capacity C1 one end, electric capacity C2 one end, tripod selector switch S5, the connected rear ground connection of the other end of described electric capacity C1, electric capacity C2, first pin of described tripod selector switch S5, three-prong connect the 18 pin, the 19 pin of second singlechip respectively;
Described display module comprises the first exclusion R1 and three LED charactron, connects exclusion R1 and second singlechip after three described charactrons are connected;
Described load module comprises the second exclusion R2 and four keyswitch S1, S2, S3, S4, and after described four keyswitch S1, S2, S3, S4 one end are connected, ground connection, the other end connect exclusion R2 and second singlechip respectively;
Described alarm module comprises hummer SP1, triode V1 and light emitting diode VD1, the base stage contact resistance R3 of described triode V1, resistance R4 one end, the described resistance R3 other end connects the 47 pin of second singlechip, ground connection after the described resistance R4 other end is connected with the emitter of described triode V1, the collector of described triode connects one end of hummer SP1, the described hummer SP1 other end is connected power supply VCC after being connected with the negative electrode of described light emitting diode, anode contact resistance R5 one end of described light emitting diode, the described resistance R5 other end connects the 48 pin of described second singlechip,
Described transceiver module comprises IP-LINK1270 chip, and the 4th pin of described IP-LINK1270 chip, the 5th pin connect the 60 pin, the 59 pin of second singlechip respectively;
Described power module comprises LM2576 voltage stabilizing chip, AS1117 voltage stabilizer, first pin input 9 ~ 24V voltage of described LM2576 voltage stabilizing chip, 4th pin of described LM2576 voltage stabilizing chip connects inductance L 1 one end, inductance L 1 other end connects the second pin of described LM2576 voltage stabilizing chip, the negative electrode of diode VD2, the anode of described diode VD2 and the three-prong of described LM2576 voltage stabilizing chip, ground connection after 5th pin is connected, described AS1117 voltage stabilizer the second pin connect electric capacity C3, electric capacity C4 one end, described electric capacity C3, ground connection after the electric capacity C4 other end is connected with the first pin of described AS1117 voltage stabilizer, the three-prong of described AS1117 voltage stabilizer connects the 4th pin of described LM2576 voltage stabilizing chip, electric capacity C5 one end, electric capacity C6 one end, electric capacity C7 one end, described electric capacity C5, electric capacity C6, ground connection after the electric capacity C7 other end is connected with the first pin of described AS1117 voltage stabilizer,
The encryption method of described first single-chip microcomputer, second singlechip transmission data adopts aes algorithm, and it comprises the following steps:
(1) need the data of transmission to be expressly, add initial key;
(2) carry out word classifying, then carry out shiftrows, then add first round key after carrying out mixcolumns, complete first round encryption;
(3) circulation carries out step (2) 12 times, completes 12 and takes turns encryption;
(4) carry out word classifying, then carry out shiftrows, then add last round key, obtain the data of the transmission after encrypting, be ciphertext;
The decryption method of described first single-chip microcomputer, second singlechip transmission data adopts aes algorithm, and it comprises the following steps:
(1) ciphertext is added the key of the use that last is taken turns in encryption method;
(2) carry out Retrograde transposition conversion, then carry out inverse word classifying, then carry out inverse mixcolumns after adding key that in encryption method, the tenth three-wheel uses, complete first round deciphering;
(3) circulation carries out step (2) 12 times, completes 12 and takes turns deciphering, often takes turns use the 12 to take turns to successively key that the first round uses;
(4) carry out your shiftrows, then carry out inverse word classifying, then add the initial key in encryption method, obtain the data of the transmission after deciphering, be expressly.
After adopting structure of the present invention; due to the first single-chip microcomputer, second singlechip send, receive data, signal time be all encrypted, decryption oprerations, achieve wireless communication data encryption and decryption protection, ensured the secure communication of intelligent domestic system; Leakage prevention, increases the security of information transmission.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is C8051F020 single chip computer architecture schematic diagram;
Fig. 3 is sensing module electrical block diagram;
Fig. 4 is display module electrical block diagram;
Fig. 5 is load module electrical block diagram;
Fig. 6 is alarm module circuitry structural representation;
Fig. 7 is transceiver module electrical block diagram;
Fig. 8 is power module circuitry structural representation;
Fig. 9 is encrypting and decrypting process flow diagram in the present invention.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, a kind of Smart Home safety control system based on AES, it comprises intelligent home gateway, intelligent home gateway connects the first single-chip microcomputer, first single-chip microcomputer connects the first transceiver module, and the first transceiver module radio communication connects the second transceiver module, and the second transceiver module connects second singlechip, second singlechip connects sensing module, display module, sensing module connects terminal device, and terminal device connects intelligent home gateway, and the first single-chip microcomputer, second singlechip comprise Encryption Decryption module, first single-chip microcomputer, second singlechip are C8051F020 single-chip microcomputer, and Encryption Decryption module is AES encryption deciphering module, realize the encrypting and decrypting to data transmission in the burned C8051F020 single-chip microcomputer of aes algorithm, second singlechip also connects alarm module and load module, sensing module comprises sensor souser and tripod selector switch S5,7th pin of sensor souser connects second pin of electric capacity C1 one end, electric capacity C2 one end, tripod selector switch S5, the connected rear ground connection of the other end of electric capacity C1, electric capacity C2, first pin of tripod selector switch S5, three-prong connect the 18 pin, the 19 pin of second singlechip respectively, display module comprises the first exclusion R1 and three LED charactron, connects the 81 pin, 82 pins, 80 three-prongs, 84 pins, 85 pins, 86 pins, 87 pins, 88 pins of exclusion R1 and second singlechip after three charactrons are connected, load module comprises the second exclusion R2 and four keyswitch S1, S2, S3, S4, and ground connection after four keyswitch S1, S2, S3, S4 one end are connected, the other end connect the 30 three-prong, 34 pins, 35 pins, 36 pins of exclusion R2 and second singlechip respectively, alarm module comprises hummer SP1, triode V1 and light emitting diode VD1, the base stage contact resistance R3 of triode V1, resistance R4 one end, the resistance R3 other end connects the 47 pin of second singlechip, ground connection after the resistance R4 other end is connected with the emitter of triode V1, the collector of triode connects one end of hummer SP1, the hummer SP1 other end is connected power supply VCC after being connected with the negative electrode of light emitting diode, anode contact resistance R5 one end of light emitting diode, the resistance R5 other end connects the 48 pin of second singlechip, transceiver module comprises IP-LINK1270 chip, and the 4th pin of IP-LINK1270 chip, the 5th pin connect the 60 pin, the 59 pin of second singlechip respectively, power module comprises LM2576 voltage stabilizing chip, AS1117 voltage stabilizer, first pin input 9 ~ 24V voltage of LM2576 voltage stabilizing chip, , 4th pin of LM2576 voltage stabilizing chip connects inductance L 1 one end, inductance L 1 other end connects the second pin of LM2576 voltage stabilizing chip, the negative electrode of diode VD2, the anode of diode VD2 and the three-prong of LM2576 voltage stabilizing chip, ground connection after 5th pin is connected, AS1117 voltage stabilizer the second pin connect electric capacity C3, electric capacity C4 one end, electric capacity C3, ground connection after the electric capacity C4 other end is connected with the first pin of AS1117 voltage stabilizer, the three-prong of AS1117 voltage stabilizer connects the 4th pin of LM2576 voltage stabilizing chip, electric capacity C5 one end, electric capacity C6 one end, electric capacity C7 one end, electric capacity C5, electric capacity C6, ground connection after the electric capacity C7 other end is connected with the first pin of AS1117 voltage stabilizer.
As shown in Figure 9, the encryption method of the first single-chip microcomputer, second singlechip transmission data adopts aes algorithm, and it comprises the following steps:
(1) need the data of transmission to be expressly, add initial key;
(2) carry out word classifying, then carry out shiftrows, then add first round key after carrying out mixcolumns, complete first round encryption;
(3) circulation carries out step (2) 12 times, completes 12 and takes turns encryption;
(4) carry out word classifying, then carry out shiftrows, then add last round key, obtain the data of the transmission after encrypting, be ciphertext;
The decryption method of the first single-chip microcomputer, second singlechip transmission data adopts aes algorithm, and it comprises the following steps:
(1) ciphertext is added the key of the use that last is taken turns in encryption method;
(2) carry out Retrograde transposition conversion, then carry out inverse word classifying, then carry out inverse mixcolumns after adding key that in encryption method, the tenth three-wheel uses, complete first round deciphering;
(3) circulation carries out step (2) 12 times, completes 12 and takes turns deciphering, often takes turns use the 12 to take turns to successively key that the first round uses;
(4) carry out your shiftrows, then carry out inverse word classifying, then add the initial key in encryption method, obtain the data of the transmission after deciphering, be expressly.
Aes algorithm is also called Rijndael algorithm, and Rijndael algorithm is block cipher, also has the general design criteria of block cipher, and the design of block cipher is exactly require that algorithm can be replaced under cipher controlled, is encrypted conversion to the plaintext of input.Good block cipher should be not only difficultly to decode, efficient but also easily realize.
(1) security criterion
Principle of sound accounting mainly refers to the confusion and diffusion principle that are proposed by Shannon.
The password that confusion principle refers to designed by people should make key and the dependence expressly and between ciphertext quite complicated, to such an extent as to this dependence cannot utilize concerning cryptanalysis person.
Diffusion principle refers to that the password designed by people should make each numeral of key affect many bit digital of ciphertext, to prevent from decoding piecemeal key, and each numeral expressly also should affect many bit digital of ciphertext, so that the statistical property of hidden plaintext numeral.Certain this cipher system must be resisted now all oneself and be known cryptographic attack.
(2) efficiency criterion
Efficiency criterion and security criterion complementation, refer to the stock number that algorithm will take when performing enciphering/deciphering, encrypt/decrypt is in the realization of software, main relevant with the internal memory shared by required internal memory and storage program, in the realization of hardware, relevant with the area of the chip required.
(3) easily criterion is realized
Block cipher can realize with software and hardware.Hard-wired advantage to obtain higher encrypt/decrypt speed, and the advantage of software simulating is that dirigibility is strong, cost is low.
As far as possible the principle of design of software simulating uses submodule and simple calculations.Crypto-operation carries out on submodule, requires that the length of submodule can adapt to software programming, as 8,16 and 32 compare top grade.In software simulating, be difficult to realize by bit arithmetic, should avoid using as far as possible, and be easy to, with software simulating, certainly preferably use the elementary instruction that some standard processors have, as addition, multiplication and displacement etc. to the crypto-operation that submodule carries out.
Following criterion is mainly considered when designing Rijndael algorithm:
(1) simplicity criterion
Simplicity is the simplicity of the design aim of Rijndael algorithm, Rijndael algorithm, is convenient to set forth and understand the cryptographic attack that cryptographic algorithm resists known type in which way, and the design criteria of simplicity also helps accomplished in many ways.
(2) symmetry criterion
The symmetry of Rijndael algorithm design, realizes with various ways, can be divided into the symmetry between each wheel, the symmetry of round transformation inside and the symmetry respectively between step.
1. the symmetry between each wheel
Symmetric benefit between each wheel is taken turns exchange carry out loop iteration to same under the control of the key, as long as advantage describes a round transformation whole specification to be described clearly, also only can take turns one and programme in software simulating.
2. the symmetry of round transformation inside
The symmetry of round transformation inside refers to all uses similarity method process to bits all in state.
3. the symmetry of D-box
4. the symmetry of S-box
5. the symmetry of encryption and decryption
So, Rijndael algorithm is while combining the design criteria of block cipher, also the design criteria of himself is had, the superiority of these design criterias, what improve algorithm realizes speed, reduces the complexity of algorithm, and algorithm also has other design criteria, these design criterias, in the principles illustrated of algorithm, describe in specific environment.
In the present invention, each functions of modules is as described below: (1) sensing module: the sensor signal that receiving terminal apparatus sends, and does filtering process to signal, sends into C8051F020 single-chip microcomputer;
(2) display module: output module, receives the data stream after deciphering, and display specific indexes, comprises temperature, humidity etc.;
(3) alarm module: output module, receives the data stream after deciphering, and when receiving initiative alarming signal or specific indexes exceedes setting limit value, honey device SP1 sends alerting signal;
(4) load module: user by the limit value of keyswitch S1, S2, S3, S4 input system monitoring index on load module, and manipulates the light, curtain etc. of intelligent domestic system.
(5) first transceiver modules, the second transceiver module: data carry out radio communication by transceiver module, this channel is easily subject to security attack, first transceiver module receives the data after the encryption of C8051F020 single-chip microcomputer, wirelessly send to the second transceiver module again, enciphered data sends to C8051F020 single-chip microcomputer to be decrypted process by the second transceiver module, realize encryption and decryption, on the contrary also like this;
(6) intelligent home gateway: as the core of intelligent domestic system, connects multiple terminal device, realizes the supervision to equipment and manipulation;
(7) C8051F020 single-chip microcomputer: core of the present invention, the burned AES encryption algorithm of C8051F020 single-chip microcomputer, achieves the encryption and decryption of wireless communication data, has ensured the secure communication of intelligent domestic system.
Claims (10)
1. the Smart Home safety control system based on AES, it comprises power module, it is characterized in that, it comprises intelligent home gateway, described intelligent home gateway connects the first single-chip microcomputer, described first single-chip microcomputer connects the first transceiver module, described first transceiver module radio communication connects the second transceiver module, described second transceiver module connects second singlechip, described second singlechip connects sensing module, display module, described sensing module connects terminal device, described terminal device connects intelligent home gateway, described first single-chip microcomputer, second singlechip comprises AES encryption deciphering module, described AES encryption deciphering module realizes described first single-chip microcomputer, the encryption and decryption of second singlechip transmission data.
2. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, described first single-chip microcomputer, second singlechip are C8051F020 single-chip microcomputer.
3. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, second singlechip also connects alarm module and load module.
4. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, described sensing module comprises sensor souser and tripod selector switch S5,7th pin of described sensor souser connects second pin of electric capacity C1 one end, electric capacity C2 one end, tripod selector switch S5, the connected rear ground connection of the other end of described electric capacity C1, electric capacity C2, first pin of described tripod selector switch S5, three-prong connect the 18 pin, the 19 pin of second singlechip respectively.
5. a kind of Smart Home safety control system based on AES according to claim 1, is characterized in that, described display module comprises the first exclusion R1 and three LED charactron, connects exclusion R1 and second singlechip after three described charactrons are connected.
6. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, described load module comprises the second exclusion R2 and four keyswitch S1, S2, S3, S4, and after described four keyswitch S1, S2, S3, S4 one end are connected, ground connection, the other end connect exclusion R2 and second singlechip respectively.
7. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, described alarm module comprises hummer SP1, triode V1 and light emitting diode VD1, the base stage contact resistance R3 of described triode V1, resistance R4 one end, the described resistance R3 other end connects the 47 pin of second singlechip, ground connection after the described resistance R4 other end is connected with the emitter of described triode V1, the collector of described triode connects one end of hummer SP1, the described hummer SP1 other end is connected power supply VCC after being connected with the negative electrode of described light emitting diode, anode contact resistance R5 one end of described light emitting diode, the described resistance R5 other end connects the 48 pin of described second singlechip.
8. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, described transceiver module comprises IP-LINK1270 chip, and the 4th pin of described IP-LINK1270 chip, the 5th pin connect the 60 pin, the 59 pin of second singlechip respectively.
9. a kind of Smart Home safety control system based on AES according to claim 1, it is characterized in that, described power module comprises LM2576 voltage stabilizing chip, AS1117 voltage stabilizer, first pin input 9 ~ 24V voltage of described LM2576 voltage stabilizing chip, 4th pin of described LM2576 voltage stabilizing chip connects inductance L 1 one end, inductance L 1 other end connects the second pin of described LM2576 voltage stabilizing chip, the negative electrode of diode VD2, the anode of described diode VD2 and the three-prong of described LM2576 voltage stabilizing chip, ground connection after 5th pin is connected, described AS1117 voltage stabilizer the second pin connect electric capacity C3, electric capacity C4 one end, described electric capacity C3, ground connection after the electric capacity C4 other end is connected with the first pin of described AS1117 voltage stabilizer, the three-prong of described AS1117 voltage stabilizer connects the 4th pin of described LM2576 voltage stabilizing chip, electric capacity C5 one end, electric capacity C6 one end, electric capacity C7 one end, described electric capacity C5, electric capacity C6, ground connection after the electric capacity C7 other end is connected with the first pin of described AS1117 voltage stabilizer.
10. a kind of Smart Home safety control system based on AES according to claim 1, is characterized in that, the encryption method of described first single-chip microcomputer, second singlechip transmission data adopts aes algorithm, and it comprises the following steps:
(1) need the data of transmission to be expressly, add initial key;
(2) carry out word classifying, then carry out shiftrows, then add first round key after carrying out mixcolumns, complete first round encryption;
(3) circulation carries out step (2) 12 times, completes 12 and takes turns encryption;
(4) carry out word classifying, then carry out shiftrows, then add last round key, obtain the data of the transmission after encrypting, be ciphertext;
The decryption method of described first single-chip microcomputer, second singlechip transmission data adopts aes algorithm, and it comprises the following steps:
(1) ciphertext is added the key of the use that last is taken turns in encryption method;
(2) carry out Retrograde transposition conversion, then carry out inverse word classifying, then carry out inverse mixcolumns after adding key that in encryption method, the tenth three-wheel uses, complete first round deciphering;
(3) circulation carries out step (2) 12 times, completes 12 and takes turns deciphering, often takes turns use the 12 to take turns to successively key that the first round uses;
(4) carry out your shiftrows, then carry out inverse word classifying, then add the initial key in encryption method, obtain the data of the transmission after deciphering, be expressly.
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| US20070208930A1 (en) * | 2006-03-01 | 2007-09-06 | Microsoft Corporation | Keytote component |
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Application publication date: 20160511 |