CN205647583U - Secret communication device - Google Patents
Secret communication device Download PDFInfo
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- CN205647583U CN205647583U CN201620380935.1U CN201620380935U CN205647583U CN 205647583 U CN205647583 U CN 205647583U CN 201620380935 U CN201620380935 U CN 201620380935U CN 205647583 U CN205647583 U CN 205647583U
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- hyperchaos
- hyperchaotic system
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Abstract
The utility model provides a secret communication device, including cryptographic module, a hyper -chaos system module, decryption module and the 2nd hyper -chaos system module, cryptographic module passes through the adder is encrypted external input's signal according to first super chaos signal, and cryptographic module exports super chaos encrypted signal, and decryption module passes through the subtracter is decrypted super chaos encrypted signal according to the super chaos signal of second. Chaos conduct ubiquitous non -linear phenomena has sensitiveness, type randomness, the three leading features of unpredictability to the initial value, the utility model discloses secret communication device encrypts and deciphers based on hyper -chaos system, can realize that difficult quilt analyses and explains to the good encryption of signal.
Description
Technical field
This utility model relates to communication technical field, particularly relates to secure communication device.
Background technology
Communication, refers to communication for information and the biography carried out between person to person or man and nature by certain behavior or medium
Pass, from referring broadly to needing the both sides of information or in many ways using arbitrarily side in the case of respective wish
Method, any medium, information is accurately safely transmitted to another side from certain side.
At present, communication technology has obtained the development maked rapid progress, and scientific research personnel constantly develops high-transmission speed
Degree, the communication technology of high stability and device, the such as at present 4G in the fiber optic communication of main flow, radio communication
Communication technology, 5G communication technology etc., the development of communication technology brings huge facility to people's life.
Along with the performance of communication technology has met people's current demand, people increasingly pay close attention to secrecy
Communication, the secure fashion used in existing communication technology is usually and encodes at signal sending end, at letter
Number receiving terminal is decoded, but simple encoding and decoding are easily cracked, and signal is easily cracked, secrecy effect
Fruit is the best.
Utility model content
Based on this, it is necessary to for the problem of general secure communication device secrecy poor effect, it is provided that Yi Zhongbao
Close respond well secure communication device.
A kind of secure communication device, including encrypting module, the first hyperchaotic system module, deciphering module and
Second hyperchaotic system module, wherein, described first hyperchaotic system module and described second hyperchaotic system
Module is based on identical chaos source, and described encrypting module is built-in with adder, has subtraction in described deciphering module
Device；
Described encrypting module is connected with described deciphering module, described first hyperchaotic system module and described encryption
Module connects, and described second hyperchaotic system module is connected with described deciphering module；
Described encrypting module receives the signal and the first of described first hyperchaotic system module input of outside input
Hyperchaos signal, described encrypting module is by described adder, according to described first hyperchaos signal to described
The signal encryption of outside input, the signal after the output hyperchaos encryption of described encrypting module, described deciphering module
Receive the signal after the encryption of described hyperchaos and the second hyperchaos letter of described second hyperchaotic system module input
Number, described deciphering module passes through described subtractor, adds described hyperchaos according to described second hyperchaos signal
Decrypted signal after close.
This utility model secure communication device, including encrypting module, the first hyperchaotic system module, deciphering mould
Block and the second hyperchaotic system module, encrypting module is by described adder, according to the first hyperchaos signal
Signal encryption to outside input, the signal after encrypting module output hyperchaos encryption, deciphering module passes through institute
State subtractor, the decrypted signal after hyperchaos being encrypted according to the second hyperchaos signal.Chaos is general as one
Store-through non-linear phenomena, there is the sensitivity to initial value, randomlikeness, unpredictability three main
Feature, this utility model secure communication device encrypts and decrypts based on hyperchaotic system, it is possible to it is right to realize
The good encryption of signal, is difficult to be cracked.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of this utility model secure communication device；
Fig. 2 is the structural representation of second embodiment of this utility model secure communication device；
Fig. 3 is the first hyperchaotic system module 200 in one of them embodiment of this utility model secure communication device
Circuit theory schematic diagram.
Detailed description of the invention
Chaos as a kind of non-linear phenomena generally existed, it have the sensitivity to initial value (if system
Initial value is different, then the track of system will produce the biggest deviation), randomlikeness is (during the randomness of chaotic process
Belong to class in matter and grasp randomness), unpredictability (sequence produced by chaotic maps has certain randomness,
Within the long time, there is unpredictability) three principal characters.But hyperchaotic system has multiple positivity
Lyapunov (Liapunov) index, has increasingly complex dynamic behavior, have higher can not be pre-
The property surveyed, the deciphering method of general low-dimensional system such as phase space reconfiguration, returns and videos and the method such as nonlinear prediction
It is difficult to decode the signal using hyperchaos encryption, thus whole communication system can be improved with hyperchaos communication
Security performance, thus, the communication of hyperchaotic system is more of practical significance.
As it is shown in figure 1, a kind of secure communication device, including encrypting module the 100, first hyperchaotic system module
200, deciphering module 300 and the second hyperchaotic system module 400, wherein, the first hyperchaotic system module
200 and second hyperchaotic system module 400 be built-in with adder based on identical chaos source, encrypting module 100,
Subtractor, encrypting module 100 is had to be connected with deciphering module 300 in deciphering module 300, the first hyperchaos system
System module 200 is connected with encrypting module 100, and the second hyperchaotic system module 400 is with deciphering module 300 even
Connecing, encrypting module 100 receives the signal and the first of the input of the first hyperchaotic system module 200 of outside input
Hyperchaos signal, encrypting module 100 is by adder, the letter inputted outside according to the first hyperchaos signal
Number encryption, encrypting module 100 export hyperchaos encryption after signal, deciphering module 300 receives hyperchaos and adds
Signal after close and the second hyperchaos signal of the second hyperchaotic system module 400 input, deciphering module 300
By subtractor, the decrypted signal after hyperchaos being encrypted according to the second hyperchaos signal.
Encrypting module 100 is built-in with adder, according to receiving the first hyperchaos signal, uses adder
Realizing encrypting external input signal, the signal after encryption sends to deciphering module 300.In deciphering module 300
It is equipped with subtractor, according to the second hyperchaos signal, uses subtractor to realize the decrypted signal after encryption,
Owing to the first hyperchaotic system module 200 and the second hyperchaotic system module 400 are based on identical chaos source,
So deciphering module 300 can accurately realize deciphering coded signal, whole secure communication device realizes letter
Number high secrecy transmission.
This utility model secure communication device, including encrypting module the 100, first hyperchaotic system module 200,
Deciphering module 300 and the second hyperchaotic system module 400, encrypting module 100 is by adder, according to the
The signal encryption that outside is inputted by one hyperchaos signal, encrypting module 100 exports the signal after hyperchaos encryption,
Deciphering module 300 is by subtractor, the decrypted signal after encrypting hyperchaos according to the second hyperchaos signal.
Chaos as a kind of non-linear phenomena generally existed, have the sensitivity to initial value, randomlikeness, can not
Three principal characters of predictability, this utility model secure communication device is encrypted reconciliation based on hyperchaotic system
Close, it is possible to realize the good encryption to signal, be difficult to be cracked.
As in figure 2 it is shown, wherein in an embodiment, secure communication device also includes the first feedback module 520
With the second feedback module 540, the input of the first feedback module 520 is connected with the outfan of encrypting module 100,
Outfan and the first hyperchaotic system module 200 of the first feedback module 520 connect, the second feedback module 540
Input be connected with the input of deciphering module 300, the outfan of the second feedback module 540 and the second surpassing
Chaos system module 400 connects, and the first feedback module 520 obtains the signal after hyperchaos encryption, and will be super
Signal input after chaos encryption obtains super mixed to the first hyperchaotic system module 200, the second feedback module 540
Signal after ignorant encryption, and the signal after hyperchaos encryption is inputted to the second hyperchaotic system module 400.
Signal after hyperchaos is encrypted by the first feedback module 520 inputs to the first hyperchaotic system module 200,
Feeding back to encrypting module 100 again, the signal after hyperchaos is encrypted by the second feedback module 540 inputs to the second surpassing
Chaos system module 400, then feed back to deciphering module 300, constitute feedback network, will be added by feedback network
Secret letter number is transmitted back to encrypting module 100 and deciphering module 300, has both made encrypting module 100 and deciphering module
300 have identical driving signal, thus realize the precise synchronization of encrypting module 100 and deciphering module 300, again
Encrypting module 100 and deciphering module 300 is made to be become non-autonomous system from autonomous system.
Wherein in an embodiment, the first feedback module 520 includes a μ A741 amplifier, and second is anti-
Feedback module 540 includes the 2nd μ A741 amplifier.
μ A741 amplifier is high-performance, internally-compensated operational amplifier, low in energy consumption, it is not necessary to foreign frequency compensates,
There is short-circuit protection and offset voltage zeroing ability.In the present embodiment, the first feedback module 520 and second
Feedback module 540 includes μ A741 amplifier, can be effectively improved the performance of this utility model secure communication device.
As in figure 2 it is shown, wherein in an embodiment, secure communication device also includes the first gain-adjusted mould
Block 620 and the second gain adjustment module 640, the first feedback module 520 is by the first gain adjustment module 620
Being connected with the first hyperchaotic system module 200, the second feedback module 540 is by the second gain adjustment module 640
It is connected with the second hyperchaotic system module 400.
The amplitude of feedback signal is adjusted by the first gain adjustment module 620 and the second gain adjustment module 640
Joint.Due to the impact of feedback signal, the chaotic behavior of this system becomes Non-Self-Governing behavior, it is possible to make system
Dynamic behavior be in non-chaotic region, make the attractor structure of system can occur significantly to change, therefore
The gain of transmitting terminal to be regulated so that transmitting terminal is within the scope of message signale changes, it is ensured that transmitting terminal (adds
Close module 100) and receiving terminal (deciphering module 300) be still within chaotic region, thus realize message to believe
Number cover in hyperchaos signal, reach the purpose of secret communication.
Wherein in an embodiment, the first gain adjustment module 620 includes the first adjustable potentiometer, second
Gain adjustment module 640 includes the second adjustable potentiometer.
Adjustable potentiometer, is a kind of adjustable electronic component, by an individual and rotation or a sliding system group
Become.On exposed resistive element, pressed against one or two and can move hard contact, contact position determines resistive element
Resistance between either end and contact.Between two fixing electric shocks of resistive element during an additional voltage, pass through
Rotate or sliding system changes position on resistive element, the contact, just can obtain between rotary contact and fixed contact
Become the voltage of certain relation with movable contact position to one.
As in figure 2 it is shown, wherein in an embodiment, secure communication device also includes transmission medium 700, adds
Close module 100 is connected with deciphering module 300 by transmission medium 700.
Wherein in an embodiment, transmission medium 700 is optical fiber.
It is that a kind of transmission performance is stablized and transmits efficiently that transmission medium 700 is used for providing transmission channel, optical fiber
Medium 700.
As it is shown on figure 3, wherein in an embodiment, the first hyperchaotic system module 200 include amplifier A,
First resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the first inductance L1, second
Inductance L2, the first electric capacity C1, the second electric capacity C2 and diode D；
The input in the same direction of amplifier A respectively with one end and one end of the first inductance L1 of the 3rd resistance R3
Connecting, the other end of the 3rd resistance R3 is connected with amplifier A outfan, the incorgruous input of amplifier A
It is connected with one end of the second resistance R2 and one end of the 4th resistance R4 respectively, another of the 4th resistance R4
End is connected with the outfan of amplifier A, the other end of the first inductance L1 respectively with one end of the first resistance R1
And second electric capacity C2 one end connect, the other end of the first resistance R1 is connected with the positive pole of diode D,
The other end of the second electric capacity C2 respectively with the negative pole of diode D and the other end of the second resistance R2 is connected and
Ground connection, one end of the second inductance L2 and one end of the first electric capacity C1 are respectively with one end of the first inductance L1 even
Connecing, the other end of the second inductance L2 and the other end of the first electric capacity C1 are respectively with the negative pole of diode D even
Connect.
First hyperchaotic system module 200 uses the structure of above-described embodiment can produce stable hyperchaos letter
Number.Non-essential, the second hyperchaotic system module 400 also can use the structure that above-described embodiment is identical.
Wherein in an embodiment, amplifier is the amplifier of μ A741 model.
Wherein in an embodiment, the first hyperchaotic system module 200 and the second hyperchaotic system module 400
Hyperchaotic system for same model.
The four-dimensional Hyperchaotic Oscillation system selecting same model is able to ensure that the signal after encryption is the most decrypted,
Additionally also allow for synchronization and the process of signal.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (10)
1. a secure communication device, it is characterized in that, including encrypting module, the first hyperchaotic system module, deciphering module and the second hyperchaotic system module, wherein, described first hyperchaotic system module and described second hyperchaotic system module are based on identical chaos source, described encrypting module is built-in with adder, has subtractor in described deciphering module；
Described encrypting module is connected with described deciphering module, and described first hyperchaotic system module is connected with described encrypting module, and described second hyperchaotic system module is connected with described deciphering module；
Described encrypting module receives signal and the first hyperchaos signal of described first hyperchaotic system module input of outside input, described encrypting module is by described adder, according to the described first hyperchaos signal signal encryption to described outside input, signal after the output hyperchaos encryption of described encrypting module, described deciphering module receives the signal after the encryption of described hyperchaos and the second hyperchaos signal of described second hyperchaotic system module input, described deciphering module passes through described subtractor, decrypted signal after described hyperchaos being encrypted according to described second hyperchaos signal.
Secure communication device the most according to claim 1, it is characterized in that, also include the first feedback module and the second feedback module, the input of described first feedback module is connected with the outfan of described encrypting module, the outfan of described first feedback module is connected with described first hyperchaotic system module, the input of described second feedback module is connected with the input of described deciphering module, and the outfan of described second feedback module is connected with described second hyperchaotic system module；
Described first feedback module obtains the signal after the encryption of described hyperchaos, and the signal input after being encrypted by described hyperchaos is to described first hyperchaotic system module, described second feedback module obtains the signal after the encryption of described hyperchaos, and by the signal input after the encryption of described hyperchaos to described second hyperchaotic system module.
Secure communication device the most according to claim 2, it is characterised in that described first feedback module includes that a μ A741 amplifier, described second feedback module include the 2nd μ A741 amplifier.
4. according to the secure communication device described in Claims 2 or 3, it is characterised in that also include the first gain adjustment module and the second gain adjustment module；
Described first feedback module is connected with described first hyperchaotic system module by described first gain adjustment module, and described second feedback module is connected with described second hyperchaotic system module by described second gain adjustment module.
Secure communication device the most according to claim 4, it is characterised in that described first gain adjustment module includes that the first adjustable potentiometer, described second gain adjustment module include the second adjustable potentiometer.
6., according to the secure communication device described in claim 1 or 2 or 3, it is characterised in that also include transmission medium, described encrypting module is connected with described deciphering module by described transmission medium.
Secure communication device the most according to claim 6, it is characterised in that described transmission medium is optical fiber.
8. according to the secure communication device described in claim 1 or 2 or 3, it is characterized in that, described first hyperchaotic system module includes amplifier, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first inductance, the second inductance, the first electric capacity, the second electric capacity and diode；
nullThe input in the same direction of described amplifier is connected with one end of described 3rd resistance and one end of described first inductance respectively，The other end of described 3rd resistance is connected with described amplifier out，The incorgruous input of described amplifier one end with one end of described second resistance and described 4th resistance respectively is connected，The described other end of the 4th resistance is connected with the outfan of described amplifier，The other end of described first inductance one end with one end of described first resistance and described second electric capacity respectively is connected，The other end of described first resistance is connected with the positive pole of described diode，The other end of the described second electric capacity other end with the negative pole of described diode and described second resistance respectively is connected and ground connection，One end of described second inductance and one end of described first electric capacity one end with described first inductance respectively is connected，The other end of described second inductance and the other end of described first electric capacity negative pole with described diode respectively is connected.
Secure communication device the most according to claim 8, it is characterised in that described amplifier is the amplifier of μ A741 model.
10. according to the secure communication device described in claim 1 or 2 or 3, it is characterised in that described first hyperchaotic system module and the four-dimensional Hyperchaotic Oscillation system that described second hyperchaotic system module is same model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380935.1U CN205647583U (en) | 2016-04-28 | 2016-04-28 | Secret communication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620380935.1U CN205647583U (en) | 2016-04-28 | 2016-04-28 | Secret communication device |
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| CN205647583U true CN205647583U (en) | 2016-10-12 |
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| CN201620380935.1U Expired - Fee Related CN205647583U (en) | 2016-04-28 | 2016-04-28 | Secret communication device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639405A (en) * | 2019-01-21 | 2019-04-16 | 王良 | A kind of communication system that information is encrypted by chaotic signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639405A (en) * | 2019-01-21 | 2019-04-16 | 王良 | A kind of communication system that information is encrypted by chaotic signal |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20180428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |