TWI571092B - Encryption system for safe transmission of network data with adaptive synchronization of hyperchaotic signals free from external interference and parameter disturbance, and method for the same - Google Patents

Description

Network data security transmission encryption protection system and method for super-chaotic signal with anti-external interference and parameter disturbance

The invention relates to a network data security transmission encryption protection system and method, in particular to a heterogeneous hyperchaotic signal capable of resisting external disturbances and parameter disturbances, and a network data security transmission encryption protection system and method.

With the development of information technology, the current information security issue has always been a lingering worry for enterprises and even countries. A common security problem is that hackers invade computer systems through the Internet, stealing personal capital, company secrets, and even state secrets, not only causing personal property losses, but also threatening the company's operations and even national security.

At present, the secure transmission and encryption protection method of network data provided by the security management industry is that users must first join the membership. In the process of joining the membership, they need to fill in the relevant personal information, fill in the completion and confirm the membership, the system operator later A certification letter is sent to the e-mail address specified by the user, and an authentication link is given in the authentication letter. When the user clicks on the authentication link, the service provided by the operator on the webpage can be used. The authentication link is generally a startup code formed by encoding a password, an e-mail address, and a current time string, such as MD5 and SHA-1, which are two major cryptosystems that are considered unbreakable internationally. However, these two major cryptosystems have been announced to be cracked in recent years, causing great shock in the international cryptography.

Moreover, the chaotic signal is a seemingly chaotic but hidden rule. It began to be widely studied around 1978, including communication, biology, mathematics, physics, chemistry, and even economics. Chaos is a long-term non-periodic behavior and is characterized by a deterministic and Sensitive to initial condition. Among them, the decisive representation of the evolutionary process of chaos seems to be a chaotic nonlinear response, but it follows a certain rule (ie, the equation); as for the sensitivity of the initial value, the orbit in the chaotic system is close. Will be quickly separated in the form of an index. Because chaotic systems have these two characteristics, chaotic systems are often used in the design of communication security.

Using the "Application of Chaos System Synchronization Theory" proposed by Pecora-Carroll in 1990, please refer to the transmission-reception unidirectional coupling chaotic system shown in Figure 3, if the hyperchaotic system at the transmitting end and the receiving end has different initial vectors. (as a safe transmission The private key), according to the Pecora-Carroll synchronization theory, a one-way coupled synchronous controller can generate chaotic synchronization between the two hyperchaotic systems at the transmitting end and the receiving end, which is to make the chaotic tone of the data to be transmitted at the transmitting end. Modulation, when sent to the receiving end and then demodulated (Demodulation), although the transmitting end and the receiving end have different initial states but all belong to the same type of chaotic system and the chaotic system parameters are fixed, it can conform to the Pecora-Carroll theory derivation. Assumption.

China's August 11, 2009 announcement No. I313557 discloses a "hyperchaotic secure communication system and method", which is a patent for the above-mentioned transmission-reception unidirectional coupling chaotic system application, which comprises: a hyperchaotic signal generator, The information is carried on the first signal of the hyperchaotic signal generator; an adjustable parameter device is configured to cause the hyperchaotic signal generator to form the information and the first signal into a hyperchaotic message; a hyperchaotic signal The synchronous receiver adjusts a second internal coupling parameter of the super-chaotic signal synchronous receiver, and after the receiving party acquires the hyperchaotic message, causes a second signal and the transmitting side to be generated in the hyper-chaotic signal synchronous receiver The first signal reaches a one-way coupling hyperchaotic synchronization; and a value-added reduction device is configured to calculate the difference between the hyperchaotic message and the second signal, and then input the difference, and the value is restored by the value-added device A value-added restore setting to interpret the information.

This chaotic system has the following disadvantages:

1. The transmitted information is only subjected to simple chaotic modulation, so the thief can easily use the communication channel to adapt to the observer and demodulate the transmission information, resulting in insecure communication.

2. Since the same type of chaotic system is used at the transmitting end and the receiving end, the information transmission is not safe enough.

3, can not resist the external interference caused by signal error so that the two sides of the signal can not be synchronized, can not communicate.

4, can not resist the disturbance of system parameters, when the system gradually aging causes signal error so that the two sides of the signal can not be synchronized, can not communicate.

5. There is no protection mechanism after the data is transmitted. When the "mask" or "vehicle" of the data is removed, the correct information can be restored almost at the same time, and the technology for directly encrypting and protecting the original data is lacking.

6. The parameter setting range is not too large, and the safety is not enough. For example, the parameter range setting of "Improved communication system and method of hyperchaos" of No. I313557 is preferably 0.01-1 and 0.89-1, and more preferably only 0.01-0.11. With 0.89-0.99.

The main object of the present invention is to provide a network data security transmission encryption protection system and method for super-chaotic signal adaptation against external disturbances and parameter disturbances, mainly to integrate two or more different chaotic systems at the transmitting end and the receiving end. The integrated hyperchaotic system transmits data, and at the same time further encrypts the plaintext of the original information of the transmitting end, so as to increase the mask or load the parameters of the original information plaintext, improve the encryption effect, and make the data transmission more secure.

In order to achieve the above object, the present invention provides a network data security transmission encryption protection system for super-chaotic signal adaptation against external disturbances and parametric disturbances; the anti-external interference and parameter disturbance hyperchaotic signals are adapted to synchronize network data security. The transmission encryption protection system includes a transmitting end and a receiving end, and transmits the original information plaintext to the receiving end by the transmitting end in a confidential manner; the transmitting end includes a hyperchaotic encryption module and a transmitting end hyperchaotic secure transmission. a module, the receiving end comprises an adaptive controller, a receiving end hyperchaotic secure transmission module and a hyperchaotic decryption module; wherein: The hyperchaotic encryption module is configured to encrypt an original information plaintext chaotic into a hyperchaotic ciphertext signal; The transmitting end hyperchaotic secure transmission module adopts an integrated hyperchaotic system integrating two or more chaotic systems, which has a plurality of heterogeneous system parameters to generate a plurality of hyperchaos through the setting of a plurality of said heterogeneous system parameters. a state signal for chaotically transforming the hyperchaotic ciphertext signal into the plurality of hyperchaotic state signals to form a hyperchaotic key message, and outputting the hyperchaotic key information; The adaptation controller is configured to adjust a parameter of the hyperchaotic secure transmission module system at the receiving end; The receiving end hyperchaotic secure transmission module uses an integrated hyperchaotic system integrating two or more chaotic systems to respond to the hyperchaotic key information output by the transmitting end, and has a plurality of heterogeneous system parameters, through a plurality of heterogeneous system parameters. The setting of the heterogeneous system parameter generates a plurality of hyperchaotic state estimation signals, and is adjusted by the adaptive controller The system parameter of the hyperchaotic secure transmission module at the receiving end is such that the hyperchaotic state estimation signal approaches the hyperchaotic state signal of the transmitting hyperchaotic secure transmission module, and then adapts to synchronization, and then Demodulating the hyperchaotic ciphertext signal; The hyperchaotic decryption module decrypts the hyperchaotic ciphertext signal into the original information plaintext.

The anti-external interference and the parameter-disturbed hyperchaotic signal as described above are adapted to the synchronized network data security transmission encryption protection system, wherein the original information plaintext is a picture or a text.

The anti-external interference and the parameter-disturbed hyperchaotic signal as described above are adapted to the synchronous network data security transmission encryption protection system, wherein the hyperchaotic encryption module first converts the RGB pixel value of the picture or the ASC II code of the text. Binary to get B = { B ₁ , B ₂ , ..., B _{M × N} }; generate an encrypted message with a hyperchaotic signal, which is then converted into a binary key Where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; the binary key and the resulting binary B = { B ₁ , B ₂ , .. . B _{M × N} } performs row-column permutation and congruence operations for encryption, and obtains C = { C ₁ , C ₂ ,..., C _{M × N} } after encryption. Perform XOR mutual exclusion operation; convert the encrypted information back to the RGB pixel value of the decimal image or the ASC II code of the text, that is, the encrypted picture or text can be obtained.

The anti-external interference and the parameter-disturbed hyperchaotic signal as described above are adapted to the synchronous network data security transmission encryption protection system, wherein the hyperchaotic decryption module is an RGB pixel value or an encrypted text of the encrypted image. The decimal ASC II code is converted to binary, which gives C = { C ₁ , C ₂ ,..., C _{M × N} }, and Perform an XOR mutual exclusion operation, where the binary key , where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; then the binary obtained by decryption B = { B ₁ , B ₂ ,..., B _{M × N} } Picture RGB pixel value or text ASC II code is converted to decimal, that is, the decrypted picture or text can be obtained.

In order to achieve the above object, the present invention further provides a method for securely encrypting and protecting the data of the super-chaotic signal that is resistant to external disturbances and parametric disturbances, and mainly transmits the original information of the sender to the receiving end in a confidential manner. The steps include: (A) chaotically encrypting the original information plaintext to form a hyperchaotic ciphertext signal at the transmitting end, so that the original information plaintext is hidden by the hyperchaotic ciphertext signal as a mask or a carrier. Transmitting a message in the hyperchaotic ciphertext signal; (B) integrating an integrated hyperchaotic system of two or more chaotic systems at the transmitting end, generating a plurality of heterogeneous system parameters via the integrated hyperchaotic system a plurality of hyperchaotic state signals for chaotically transforming the hyperchaotic ciphertext signal on the plurality of hyperchaotic state signals to form a hyperchaotic key message, and outputting the hyperchaotic key information; (C) The receiving end receives the hyperchaotic key information; (D) the receiving end responds to the hyperchaotic key information output by the transmitting end, and the receiving end integrates two or more types of chaos The integrated hyperchaotic system of the system generates a plurality of hyperchaotic state estimation signals via setting of a plurality of heterogeneous system parameters of the integrated hyperchaotic system at the receiving end, and adjusts the receiving end by an adaptive controller a system parameter, wherein the hyperchaotic state estimation signal is adapted to be synchronized with the hyperchaotic state signal of the transmitting end to demodulate the hyperchaotic ciphertext signal; (E) then the hyperchaotic ciphertext is The signal is decrypted by hyperchaos to restore the correct original information plaintext; wherein the dynamic equation of the integrated chaotic system at the transmitting end is: x ₁ , x ₂ , x ₃ are hyperchaotic state signals at the transmitting end, , , Is the instantaneous change amount of the hyperchaotic state signal at the transmitting end, where α is a system parameter of the transmitting end, and the transmitting end generates an unpredictable hyperchaotic state signal x ₁ , x ₂ , x ₃ through the change of α ; The dynamic equation of the integrated chaotic system at the receiving end is: z ₁ , z ₂ , z ₃ are hyperchaotic state estimation signals at the receiving end, , , Is the instantaneous variation of the hyperchaotic state estimation signal at the receiving end, where β is the system parameter of the receiving end, and the change of β causes the receiving end to generate an unpredictable hyperchaotic state estimation signal z ₁ , z ₂ , z ₃ ; The equation for the adaptive controller is: Where e _i = z _i - x _i , that is, e _i is the error of the hyperchaotic state estimation signal at the receiving end and the hyperchaotic state signal of the transmitting end, Is the instantaneous variation of e _i = z _i - x _i , and the perturbation limit of the transmitting end is expressed as: n ( t )=[ n ₁ , n ₂ , n ₃ ] ^T , and ∥ n ∥ D _b , where ∥ n ∥ is the Euclidean norm of the noise n ( t ), and D _b is the noise limit; with An estimated value for the disturbed unknown parameters α and β in the transmitting end and the receiving end respectively; the transmitting end and the receiving end parameter updating rule are defined as: Where γ ₁ , γ ₂ are positive values, ε is a small positive number, and

The anti-external interference and the parameter-disturbed hyperchaotic signal as described above are adapted to the synchronous network data security transmission encryption protection method, wherein the original information plaintext is a picture or a text.

The anti-external interference and the parameter-disturbed hyperchaotic signal as described above are adapted to the synchronous network data security transmission encryption protection method, wherein in the step of encrypting the original information plaintext to form a hyperchaotic ciphertext signal, the picture is taken The RGB pixel value or the ASC II code of the text is converted into binary bits to obtain B = { B ₁ , B ₂ , ..., B _{M × N} }; the encrypted message is generated by the hyperchaotic signal, and the encrypted message is converted into two. Carry key Where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; the binary key and the resulting binary B = { B ₁ , B ₂ ,. .., B _{M × N} } performs row-column permutation and congruence operations for encryption, and obtains C = { C ₁ , C ₂ ,..., C _{M × N} } after encryption. Perform XOR mutual exclusion operation; convert the encrypted information back to the RGB pixel value of the decimal image or the ASC II code of the text, that is, obtain the encrypted picture or text.

The anti-external interference and the parameter-disturbed hyperchaotic signal as described above are adapted to the synchronous network data security transmission encryption protection method, wherein the hyperchaotic ciphertext signal is decrypted by hyperchaos to restore the correct original In the step of clearing the information, the RGB pixel value of the encrypted image decimal digit or the ASC II code of the encrypted text decimal is converted into a binary digit, and C ={ C ₁ , C ₂ ,..., C _{M × N is obtained.} },and Perform an XOR mutual exclusion operation, where the binary key , where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; then the binary obtained by decryption B = { B ₁ , B ₂ ,..., B _{M × N} } Picture RGB pixel value or text ASC II code is converted to decimal, that is, the decrypted picture or text can be obtained.

The network data security transmission encryption protection system and method for adapting to the super-chaotic signal of the external disturbance and the parameter disturbance of the invention has the following advantages: The invention encrypts the original information plaintext to form a hyperchaotic ciphertext signal, and then transforms the hyperchaotic ciphertext signal chaotic modulation into a plurality of hyperchaotic state signals to form a hyperchaotic key message, and uses the hyperchaotic key information as a mask. Or the carrier transmits the original information plaintext from the transmitting end to the receiving end, and finally demodulates and decrypts at the receiving end to restore the original information plaintext, especially the superchaotic signal design with different parameters between the transmitting end and the receiving end, It can generate chaotic key information of hyperchaos, and it is not easy to be cracked to ensure the security of information transmission.

(1) ‧‧‧Send

(11)‧‧‧Superchaotic Encryption Module

(12)‧‧‧Send Hyperchaotic Security Transmission Module

(2) ‧‧‧ receiving end

(21) ‧‧‧Adapted controller

(22)‧‧‧ Receiver Hyperchaotic Security Transmission Module

(23)‧‧‧Superchaotic Decryption Module

(3) ‧ ‧ public transmission channel

The first figure is a schematic diagram of the architecture of the network data security transmission encryption protection system adaptive to synchronization of the anti-external interference and parameter disturbance in the embodiment of the present invention.

The second figure: a schematic diagram of a method for securely encrypting and protecting a data security transmission of a hyperchaotic signal that is resistant to external disturbances and parametric disturbances according to an embodiment of the present invention

Figure 3: Schematic diagram of the existing transmission-receive unidirectional coupling chaotic system architecture

For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, the following is a detailed description, and please refer to the illustrated drawings and drawings: please refer to the first The figure shows a schematic diagram of the architecture of the network data security transmission encryption protection system for adapting the super-chaotic signal of the anti-external interference and the parameter disturbance to the synchronization of the present invention.

The anti-external interference and parameter-disturbed hyperchaotic signal of the invention adapts to the synchronous network data security transmission encryption protection system, comprising a transmitting end (1) and a receiving end (2). The transmitting end (1) comprises a hyperchaotic encryption module (11) and a transmitting end hyperchaotic secure transmission module (12). The receiving end (2) comprises an adaptive controller (21), a receiving end hyperchaotic secure transmission module (22) and a hyperchaotic decryption module (23). The transmitting end hyperchaotic secure transmission module (12) and the adaptive controller (21) form a communication connection through a public signal transmission channel (3). Among them: hyperchaotic encryption module (11), used to encrypt a original information plaintext chaotic encryption into a hyperchaotic ciphertext signal; the transmitting end hyperchaotic secure transmission module (12) adopts the integration of two or more chaotic systems. a hyperchaotic system, the integrated hyperchaotic system having a plurality of heterogeneous system parameters for generating a plurality of hyperchaotic state signals via a plurality of heterogeneous system parameters for carrying chaotic modulation of the hyperchaotic ciphertext signal A plurality of hyperchaotic state signals form a hyperchaotic key message, and output the hyperchaotic key message; the controller (21) is adapted to adjust the superchaotic secure transmission module at the receiving end (22) System parameters; the hyperchaotic secure transmission module (22) at the receiving end responds to the hyperchaotic key information output by the transmitting end (1), and adopts an integrated hyperchaotic system integrating two or more chaotic systems. The integrated hyperchaotic system has a plurality of heterogeneous system parameters, and generates a plurality of hyperchaotic state estimation signals through setting of a plurality of heterogeneous system parameters, and adjusts the receiving end hyperchaotic safety transmission module by adapting the controller (21) (22) The system parameters are such that the hyperchaotic state estimation signal approaches the hyperchaotic state signal of the hyperchaotic secure transmission module (12) at the transmitting end, and then adapts to the synchronization, and then demodulates the hyperchaotic ciphertext signal; hyperchaos The decryption module (23) decrypts the hyperchaotic ciphertext signal into the original information plaintext.

The transmitting hyperchaotic secure transmission module (12) is realized by an integrated chaotic system integrating two or more chaotic systems. When a certain system parameter changes, the hyperchaotic secure transmission module (12) at the transmitting end will present three different types of chaotic dynamic behaviors, namely Lorenz system, Chen system and Lü system, and hyperchaotic encryption module (11). The generated hyperchaotic ciphertext signal is loaded into the hyperchaotic secure transmission module (12) at the transmitting end, and three different types of chaotic dynamic equations are:

Where x ₁ , x ₂ , x ₃ are hyperchaotic state signals of the hyperchaotic secure transmission module (12) at the transmitting end, , , Is the instantaneous change of the hyperchaotic state signal of the transmitting hyperchaotic secure transmission module (12), α [0,1] is used as the system parameter of the transmitting hyperchaotic secure transmission module (12). When α [0,0.8) the system may exhibit a dynamic Lorenz system behavior; when α (0.8,1), the system will show the dynamic behavior of Chen system; when α = 0.8, the system will show the dynamic behavior of Lü system. Therefore, through the change of α , the hyperchaotic secure transmission module can be made at the transmitting end (12) Unpredictable hyperchaotic state signals x ₁ , x ₂ , x _{3 are} generated.

The receiving end hyperchaotic secure transmission module (22) responds to the hyperchaotic key information output by the transmitting end (1) by using an integrated chaotic system integrating two or more chaotic systems, and by adaptive control. The operation of the device (21) adjusts the system parameters of the hyperchaotic secure transmission module (22) at the receiving end, so that the hyperchaotic state estimation signal generated by the superchaotic secure transmission module (22) at the receiving end approaches the hyperchaotic security of the transmitting end. The hyperchaotic state signal of the transmission module (12) is then adapted to synchronization. The chaotic dynamic equation is:

Where z ₁ , z ₂ , z ₃ are hyperchaotic state estimation signals of the receiving hyperchaotic secure transmission module (22), , , It is the instantaneous change of the hyperchaotic state estimation signal of the hyperchaotic safety transmission module (22) at the receiving end, β [0,1] is used as the system parameter of the receiving end hyperchaotic security transmission module (22). When β [0,0.8) The system will exhibit the dynamic behavior of the Lorenz system; when β (0.8,1), the system will show the dynamic behavior of Chen system; when β = 0.8, the system will show the dynamic behavior of Lü system. Therefore, through the change of β , the hyperchaotic secure transmission module at the receiving end can be made (22) Unpredictable hyperchaotic state estimation signals z ₁ , z ₂ , z _{3 are} generated.

Let e _i = z _i - x _i , i =1, 2, 3, bring into equation (1) and formula (2), and get:

Where e _i is the error of the hyperchaotic state estimation signal at the receiving end and the hyperchaotic state signal of the transmitting end, Is the instantaneous variation of e _i = z _i - x _i , assuming that the parameters α and β are known, then when u ( t )=[ u ₁ , u ₂ , u ₃ ] ^T , it can be derived from an effective control method. Get the following formula:

Bring formula (4) into formula (3) to find the eigenvalues of formula (3) are -10, -1, and -8/3, and as time goes to infinity, hyperchaotic signal synchronization error e ( t ) = [ e ₁ , e ₂ , e ₃ ] ^T will also converge to zero, and the hyperchaotic secure transmission module (12) at the transmitting end and the hyperchaotic secure transmission module (22) at the receiving end are synchronized.

Since the parameters α and β are usually unknown and uncertain in advance, the adaptive controller (21) cannot operate effectively. Therefore, in order to achieve the adaptive synchronization state of the two chaotic modules, the parameters α and β must be designed to update the rules autonomously, so Formula (4) is modified to:

among them, with In the transmitting hyperchaotic secure transmission module (12) and the receiving end hyperchaotic secure transmission module (22), respectively, for the estimated values of the disturbed unknown parameters α and β , the formula (5) is substituted back into the formula ( 3) is available:

Sometimes the message passes through the signal transmission channel (3). There may be noise-interfering channels. It is assumed that the transmission hyperchaotic secure transmission module (12) is damaged by the disturbance limit: n ( t )=[ n ₁ , n ₂ , n ₃ ] ^T , and ∥ n ∥ D _b , where ∥ n ∥ is the Euclidean norm of noise n ( t ) and D _b is the noise limit. Then formula (6) can be re-recorded as:

Using the Lyapunov stability principle to define a Lyapunov function to prove that the adaptive controller (21) uses the dead zone algorithm, the parameter update rule can be redefined as:

Where γ ₁ , γ ₂ are positive values, ε is a small positive number, and

In order to verify that the transmitting end hyperchaotic secure transmission module (12) and the receiving end hyperchaotic secure transmission module (22) are integrated with two or more different chaotic systems, the system parameters are with Unknown and uncertain, and considering that the signal transmission channel (3) has interference factors, the present invention can still converge the error dynamic trajectory of the transmitting end (1) and the receiving end (2) to approach zero, that is, the receiving end is super The chaotic secure transmission module (22) and the transmitting end hyperchaotic secure transmission module (12) are adapted to synchronize, as further explained below.

According to Cauchy-Schwarz inequality: x,y R ⁿ and | x . y | ∥ x ∥∥ y ∥; Barbalat's theory: If y L _∞ ∩ L ₂ and L _∞ , then ∥ y ∥ → 0 as t → ∞; Lyapunov stability theroy: Let x =0 be a point of equilibrium, such that V: D → R is a continuous differentiable function associated with D of x =0, such that in D - {0}, V (0) = 0 and V ( x ) >0; In D , ( x ) 0, when x =0 indicates that the system is stable; if in D -{0}, ( x ) < 0, when x =0 indicates that the system is progressively stable.

Consider the Lyapunov function from equation (10):

among them And

The derivative function of V is calculated via the formula (7) by using the adaptive controller (21) having the formula (8) and the formula (9) of the parameter update rule; it can be easily found: In ∥ e ∥ ε ; and

and

According to the Lyapunov theory, inequalities ( t )<0 means that V ( t ) converges to zero and is the boundary of all time, ie V L _∞ , the definition of V ( t ) in equation (10) indicates e ( t ) L _∞ , ( t ) L _∞ and ( t ) L _∞ , equations (11) and (12) mean that the square of e ( t ) is a function of integrable, ie e ( t ) L ₂ ; in addition, formula (6) shows ( t ) L _∞ because e ( t ) L _∞ ∩ L ₂ and ( t ) L _∞, according Barbalat's theory, as t → ∞ then e (t) → 0.

This proves that the receiving end hyperchaotic secure transmission module (22) of the present invention and the transmitting end hyperchaotic secure transmission module (12) are gradually synchronized.

Please refer to the second figure, which is a schematic flowchart for revealing a method for encrypting and protecting a network data security transmission of a super-chaotic signal that is resistant to external disturbances and parametric disturbances according to an embodiment of the present invention. The flow is described as follows: (A) chaotically encrypting the original information in the plaintext to form a hyperchaotic ciphertext signal, so that the original information plaintext is hidden in the hyperchaotic ciphertext by using the hyperchaotic ciphertext signal as a mask or a carrier. Transmission in the signal; (B) generating, by the transmitting end, a plurality of hyperchaotic state signals by setting a plurality of heterogeneous system parameters, wherein the chaotic modulation of the hyperchaotic ciphertext signal is carried on the plurality of hyperchaotic state signals to form a hyperchaotic key Message and output the hyperchaotic key message; (C) the receiving end receives the hyperchaotic key information; (D) the receiving end responds to the hyperchaotic key information outputted by the transmitting end, generates a plurality of hyperchaotic state estimation signals through setting of a plurality of heterogeneous system parameters, and adjusts system parameters by adapting the controller to make hyperchaos The state estimation signal is adapted to the hyperchaotic state signal synchronized with the transmitting end to demodulate the hyperchaotic ciphertext signal; (E) Then the hyperchaotic ciphertext signal is decrypted by hyperchaos to restore the correct original information plaintext.

Among them, the chaotic dynamic equation at the transmitting end is: x ₁ , x ₂ , x ₃ are hyperchaotic state signals at the transmitting end, , , It is the instantaneous change of the hyperchaotic state signal at the transmitting end, and α is the system parameter of the transmitting end. Through the change of α , the unpredictable hyperchaotic state signal x ₁ , x ₂ , x ₃ can be generated at the transmitting end; The chaotic dynamic equation is:

z ₁ , z ₂ , z ₃ are superchaotic state estimation signals at the receiving end, , , It is the instantaneous change of the hyperchaotic state estimation signal at the receiving end, and β is the system parameter of the receiving end. Through the change of β , the unpredictable hyperchaotic state estimation signal z ₁ , z ₂ , z can be generated at the receiving end. ₃ ; The equation for adapting the controller is:

Where e _i = z _i - x _i , that is, e _i is the error of the hyperchaotic state estimation signal at the receiving end and the hyperchaotic state signal of the transmitting end, Is the instantaneous variation of e _i = z _i - x _i , and the disturbance limit at the transmitting end is expressed as: n ( t )=[ n ₁ , n ₂ , n ₃ ] ^T , and ∥ n ∥ D _b , where ∥ n ∥ is the Euclidean norm of the noise n ( t ), and D _b is the noise limit; with It is an estimated value for the disturbed unknown parameters α and β in the transmitting end and the receiving end respectively; the sending end and receiving end parameter updating rules are defined as: Where γ ₁ , γ ₂ are positive values, ε is a small positive number, and

Wherein, in the step of encrypting the original information plaintext to form a hyperchaotic ciphertext signal, converting the RGB pixel value of the picture or the ASC II code of the character into a binary bit to obtain B = { B ₁ , B ₂ , ..., B _{M × N} }; generating an encrypted message with a hyperchaotic signal, which is then converted into a binary key Where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; the binary key and the resulting binary B = { B ₁ , B ₂ ,. .., B _{M × N} } performs row-column permutation and congruence operations for encryption, and obtains C = { C ₁ , C ₂ ,..., C _{M × N} } after encryption. Perform XOR mutual exclusion operation; convert the encrypted information back to the RGB pixel value of the decimal image or the ASC II code of the text, and then hide the original information plaintext in the encrypted picture or text to form a hyperchaotic ciphertext signal.

Wherein, in the step of decrypting the hyperchaotic ciphertext signal by hyperchaos to restore the correct original information plaintext, the RGB pixel value of the hyperchaotic ciphertext signal image or the ASC II code of the encrypted text decimal digit is used. Convert to binary, get C = { C ₁ , C ₂ ,..., C _{M × N} }, and Perform an XOR mutual exclusion operation, where the binary key , where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; then the binary obtained by decryption B = { B ₁ , B ₂ ,..., B _{M × N} } Picture RGB pixel value or text ASC II code is converted to decimal, that is, the decrypted picture or text can be obtained to restore the original information plaintext.

The above is only a part of the embodiments of the present invention, and is not intended to limit the present invention. It is intended to be included in the scope of the present invention.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific technical means disclosed therein have not been seen in similar products, nor have they been disclosed before the application, and have completely complied with the patent law. The regulations and requirements, the application for invention patents in accordance with the law, and the application for review, and the grant of patents, are truly sensible.

(1) ‧‧‧Send

(11)‧‧‧Superchaotic Encryption Module

(12)‧‧‧Send Hyperchaotic Security Transmission Module

(2) ‧‧‧ receiving end

(21) ‧‧‧Adapted controller

(22)‧‧‧ Receiver Hyperchaotic Security Transmission Module

(23)‧‧‧Superchaotic Decryption Module

(3) ‧ ‧ public transmission channel

Claims (8)

A super-chaotic signal resistant to external disturbances and parametric disturbances adapts to the synchronous network data security transmission encryption protection system, comprising a transmitting end and a receiving end; the transmitting end comprises a hyperchaotic encryption module and a transmitting end hyperchaotic secure transmission module The receiving end comprises an adaptive controller, a receiving end hyperchaotic secure transmission module and a hyperchaotic decryption module; wherein: the hyperchaotic encryption module encrypts an original information plaintext chaotic into a hyperchaotic ciphertext The signal is output to the transmitting end hyperchaotic secure transmission module; the transmitting end hyperchaotic secure transmission module is an integrated hyperchaotic system integrating two or more chaotic systems, which has a plurality of heterogeneous system parameters, Generating a plurality of hyperchaotic state signals by setting a plurality of said heterogeneous system parameters, wherein chaotic modulation of the hyperchaotic ciphertext signal is carried on the plurality of hyperchaotic state signals to form a hyperchaotic key message, and outputting the super a chaotic key message; the adaptive controller is configured to adjust a parameter of a hyperchaotic secure transmission module system at the receiving end; The chaotic security transmission module uses an integrated hyperchaotic system integrating two or more chaotic systems to respond to the hyperchaotic key information output by the transmitting end, which has a plurality of heterogeneous system parameters, and through the plurality of heterogeneous system parameters The setting generates a plurality of hyperchaotic state estimation signals, and by the Adjusting, by the controller, system parameters of the hyperchaotic secure transmission module at the receiving end, so that the hyperchaotic state estimation signal approaches the hyperchaotic state signal of the transmitting hyperchaotic secure transmission module, and then Adapting the synchronization, and then demodulating the hyperchaotic ciphertext signal; the hyperchaotic decryption module decrypts the hyperchaotic ciphertext signal into the original information plaintext. For example, the anti-external interference and parameter-disturbed hyperchaotic signals described in claim 1 are adapted to the synchronous network data security transmission encryption protection system, wherein the original information is plain text or picture. For example, the anti-external interference and the parameter-disturbed hyperchaotic signal according to claim 2 of the patent application are adapted to the synchronous network data security transmission encryption protection system, wherein the hyperchaotic encryption module firstly takes the RGB pixel value of the picture or The ASC II code of the character is converted into binary bits to obtain B = { B ₁ , B ₂ , ..., B _{M × N} }; the encrypted message is generated by the hyperchaotic signal, and the encrypted message is converted into the binary key. Where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; the binary key and the resulting binary B = { B ₁ , B ₂ ,. .., B _{M × N} } performs row-column permutation and congruence operations for encryption, and obtains C = { C ₁ , C ₂ ,..., C _{M × N} } after encryption. Perform XOR mutual exclusion operation; convert the encrypted information back to the RGB pixel value of the decimal image or the ASC II code of the text, that is, the encrypted picture or text can be obtained. For example, the ultra-chaotic signal of the anti-external interference and the parameter disturbance mentioned in the third application of the patent scope is adapted to the synchronous network data security transmission encryption protection system, wherein the hyperchaotic decryption module is an RGB of the encrypted decimal frame. The pixel value or the encrypted ASC II code of the literal decimal is converted to binary, which gives C = { C ₁ , C ₂ ,..., C _{M × N} }, and Perform an XOR mutual exclusion operation, where the binary key , where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; then the binary obtained by decryption B = { B ₁ , B ₂ ,..., B _{M × N} } Picture RGB pixel value or text ASC II code is converted to decimal, that is, the decrypted picture or text can be obtained. A super-chaotic signal resistant to external disturbances and parametric disturbances adapts to the synchronous network data security transmission encryption protection method, mainly transmits the information of the transmitting end to the receiving end, and the steps thereof include: (A) plaintext of the original information at the transmitting end Chaotic encryption forms a hyperchaotic ciphertext signal; (B) an integrated hyperchaotic system integrating two or more chaotic systems at the transmitting end, which has a plurality of heterogeneous system parameters and is set through a plurality of said heterogeneous system parameters Generating a plurality of hyperchaotic state signals for chaotically transforming the hyperchaotic ciphertext signal into the plurality of hyperchaotic state signals to form a hyperchaotic key message, and outputting the hyperchaotic key information; (C) The receiving end receives the hyperchaotic key information; (D) the receiving end responds to the hyperchaotic key information output by the transmitting end, and the receiving end integrates an integrated hyperchaotic system of two or more chaotic systems, which has a complex number a heterogeneous system parameter, generating a plurality of hyperchaotic state estimation signals via setting of the plurality of heterogeneous system parameters, and adjusting the connection by an adaptive controller a system parameter of the receiving end, wherein the hyperchaotic state estimation signal is adapted to be synchronized with the hyperchaotic state signal of the transmitting end to demodulate the hyperchaotic ciphertext signal; (E) then the hyperchaotic The ciphertext signal is decrypted by hyperchaos to obtain the correct original information plaintext; wherein the dynamic equation of the integrated chaotic system at the transmitting end is: x ₁ , x ₂ , x ₃ are hyperchaotic state signals at the transmitting end, , , Is the instantaneous change amount of the hyperchaotic state signal at the transmitting end, where α is a system parameter of the transmitting end, and the transmitting end generates an unpredictable hyperchaotic state signal x ₁ , x ₂ , x ₃ through the change of α ; The dynamic equation of the integrated chaotic system at the receiving end is: z ₁ , z ₂ , z ₃ are hyperchaotic state estimation signals at the receiving end, , , Is the instantaneous variation of the hyperchaotic state estimation signal at the receiving end, where β is the system parameter of the receiving end, and the change of β causes the receiving end to generate an unpredictable hyperchaotic state estimation signal z ₁ , z ₂ , z ₃ ; The equation for the adaptive controller is: Where e _i = z _i - x _i , that is, e _i is the error of the hyperchaotic state estimation signal at the receiving end and the hyperchaotic state signal of the transmitting end, Is the instantaneous variation of e _i = z _i - x _i , and the perturbation limit of the transmitting end is expressed as: n ( t )=[ n ₁ , n ₂ , n ₃ ] ^T , and ∥ n ∥ D _b , where ∥ n ∥ is the Euclidean norm of the noise n ( t ), and D _b is the noise limit; with An estimated value for the disturbed unknown parameters α and β in the transmitting end and the receiving end respectively; the transmitting end and the receiving end parameter updating rule are defined as: Where γ ₁ , γ ₂ are positive values, ε is a small positive number, and For example, the anti-external interference and the parameter-disturbed hyperchaotic signal according to claim 5 of the patent application are adapted to the synchronous network data security transmission encryption protection method, wherein the original information plaintext is a picture or a text. For example, the anti-external interference and the parameter-disturbed hyperchaotic signal according to claim 6 of the patent application are adapted to the synchronous network data security transmission encryption protection method, wherein the original information plaintext is chaotically encrypted to form a hyperchaotic ciphertext signal. In the step, the RGB pixel value of the picture or the ASC II code of the text is converted into a binary bit to obtain B = { B ₁ , B ₂ , ..., B _{M × N} }; the encrypted message is generated by the hyperchaotic signal. Converting the encrypted message into a binary key Where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; the binary key and the resulting binary B = { B ₁ , B ₂ ,. .., B _{M × N} } performs row-column permutation and congruence operations for encryption, and obtains C = { C ₁ , C ₂ ,..., C _{M × N} } after encryption. Perform XOR mutual exclusion operation; convert the encrypted information back to the RGB pixel value of the decimal image or the ASC II code of the text, that is, obtain the encrypted picture or text, and become a hyperchaotic ciphertext signal. For example, the anti-external interference and the parameter-disturbed hyperchaotic signal according to claim 7 of the patent application are adapted to the synchronous network data security transmission encryption protection method, wherein the hyperchaotic ciphertext signal is decrypted by hyperchaos to restore In the step of obtaining the correct original information plaintext, the RGB pixel value of the encrypted image decimal digit or the ASC II code of the encrypted text decimal digit is converted into a binary digit, and C ={ C ₁ , C ₂ ,.. . C _{M × N} }, and Perform an XOR mutual exclusion operation, where the binary key , where T = abs ( x _ik )- floor ( abs ( x _ik )), x _ik is a hyperchaotic signal; then the binary obtained by decryption B = { B ₁ , B ₂ ,..., B _{M × N} } The picture RGB pixel value or the text ASC II code is converted into decimal, that is, the decrypted picture or text can be obtained, and the correct original information plaintext is restored.