Optical communication system based on information security transmission

Abstract

The invention relates to the technical field of optical communication, and provides an optical communication system based on information security transmission, which comprises an encryption matrix module, an optical signal conversion module, a frequency band encryption module and a matrix decryption module. Information subjected to matrix encryption is converted into an information frequency band through an optical signal conversion module, the information frequency band is subjected to secondary encryption through a frequency band encryption module and then is transmitted through an optical fiber, information decryption is preferentially carried out on the information frequency band where transmission arrives, and the information is input into a matrix decryption module; according to the method, matrix information is input into an alpha matrix and a beta matrix respectively, the intersection of the alpha matrix and the beta matrix is used as decoding information to recover matrix encrypted information again, the local encryption matrix is used for information decoding in the encryption mode, and only the dual encryption decoding mode is used for transmission during transmission, so that the transmission efficiency is improved. The possibility of stealing and leakage in the information transmission process is reduced, and the security of optical communication is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to an optical communication system based on secure information transmission. Background Art

[0002] With the rapid development of technologies such as the Internet, the Internet of Things, and cloud computing, people have higher and higher requirements for communication capacity and speed. Optical communication technology uses light as the main carrier for signal transmission and is gradually being used due to its advantages of large capacity, high speed, and low cost. Among them, FSO (Free Space Optical Communication), also known as OWC (Optical Wireless Communication), is an optical communication technology that transmits modulated optical signals through free space. It has the advantages of high bandwidth, good confidentiality, no need for frequency band application, and easy installation. It is widely used in temporary battlefield communication networks and places such as across rivers and lakes where it is not convenient to lay optical fibers or cables.

[0003] Among them, unencrypted data can be easily intercepted during the optical communication transmission process, resulting in the leakage of transmitted information to unauthorized third parties, which will lead to the leakage of personal privacy, business secrets or other important information, causing immeasurable losses to individuals or enterprises. Therefore, an optical communication system based on secure information transmission is needed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an optical communication system based on secure information transmission, which solves the problem that unencrypted data in the optical communication transmission process is easily intercepted, resulting in the leakage of the transmitted information to unauthorized third parties.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: An optical communication system based on secure information transmission, comprising: An encryption matrix module, which is used to decompose information and insert the decomposed information into two blank matrices for matrix encryption; An optical signal conversion module, which is used to convert the encrypted matrix information into an information frequency band that can be transmitted by optical communication, and receive the information frequency band and restore it back to matrix information; A frequency band encryption module, which is used to encrypt the transmitted information frequency band and encrypt and sort the information frequency band according to a rule; The matrix decryption module is used to decrypt the encrypted matrix information using a local matrix template to decode and restore the information.

[0006] Preferably, the encryption matrix module and the matrix decryption module share a set of matrix templates.

[0007] Preferably, the encryption matrix module includes an information decomposition unit, a matrix import unit, a matrix sorting unit and a key generation unit which are electrically connected to each other.

[0008] Preferably, the optical signal conversion module comprises an information conversion unit, a frequency band restoration unit and a signal transceiver unit which are electrically connected to each other.

[0009] Preferably, the frequency band encryption module includes a frequency band decomposition unit, a frequency band sorting unit and a sorting scheme unit which are electrically connected to each other.

[0010] Preferably, the matrix decryption module includes a key reading unit, a matrix information extraction unit and an information restoration unit which are electrically connected to each other.

[0011] An optical communication method based on secure information transmission comprises the following steps: Step 1: The sender imports the information to be transmitted into the encryption matrix module, and uses the encryption matrix module to matrix-encrypt the information; Step 2: Import the matrix information into the optical signal conversion module, and convert it into an information frequency band that can be used for optical communication transmission through the information conversion unit; Step 3: The information frequency band is imported into the frequency band encryption module for secondary encryption, and then transferred to the optical signal conversion module for transmission through the signal transceiver unit; Step 4: The receiver receives the information band through the signal transceiver unit, and imports it into the band encryption module for decoding to restore the matrix information; Step 5: The receiver imports the matrix information into the matrix decryption module and exports the matrix information through matrix restoration.

[0012] Preferably, the specific steps of matrix encryption in step 1 are: S1, decomposing the imported information through the information decomposition unit, classifying the information into multiple sub-groups, and classifying the multiple groups of information into two parent groups; S2. The whole process of S1 is recorded by the matrix sorting unit and a report is generated; S3, importing the information of the two parent groups into the α matrix and the β matrix respectively through the matrix import unit to form matrix information; S4, the key generation unit generates a key for restoring the order of the decoded information according to the report generated in S2; S5. Output matrix information.

[0013] Preferably, the specific steps of the secondary encryption in step three are: S1, decomposing the information frequency band into multiple frequency bands through a frequency band decomposition unit; S2. rearrange through a frequency band sorting unit according to a scheme stored in a sorting scheme unit; S3. Add a serial number for reading, decoding and recovery at the beginning of the rearranged information frequency band.

[0014] Preferably, the specific steps of matrix restoration in step 5 are: S1, importing the matrix information into the matrix information extraction unit and the key into the key reading unit; S2, the matrix information extraction unit uses the intersection of the α matrix and the β matrix as the decoding information to obtain the extraction method of the information in the α matrix and the β matrix; S3, extracting information from the α matrix and the β matrix using the extraction method obtained in S2; S4. Use the key to sort and restore the extracted information.

[0015] The present invention provides an optical communication system based on secure information transmission, which has the following beneficial effects: 1. The encryption method of the present invention utilizes a local encryption matrix to decode information, and only transmits the decoding method utilizing double encryption during transmission, thereby reducing the possibility of theft and leakage during information transmission and ensuring the security of optical communication.

[0016] 2. The present invention can adapt information to the form of optical communication by decomposing information into multiple subgroups and performing matrix processing and converting optical signals into information frequency bands, thereby further improving the rate and capacity of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A diagram of an optical communication system based on secure information transmission according to the present invention; Figure 2 A schematic diagram of an encryption matrix module system of an optical communication system based on information security transmission of the present invention; Figure 3 A schematic diagram of an optical signal conversion module system of an optical communication system based on information security transmission according to the present invention; Figure 4 A schematic diagram of a frequency band encryption module system of an optical communication system based on information security transmission according to the present invention; Figure 5 The present invention is a schematic diagram of a matrix decryption module system of an optical communication system based on secure information transmission. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example: Please see attached Figure 1 -Attached Figure 5 , an embodiment of the present invention provides an optical communication system based on information security transmission, comprising: The encryption matrix module is composed of an information decomposition unit, a matrix import unit, a matrix sorting unit and a key generation unit which are electrically connected to each other. The encryption matrix module is used to decompose information and insert the decomposed information into two blank matrices for matrix encryption. An optical signal conversion module, which is composed of an information conversion unit, a frequency band restoration unit and a signal transceiver unit electrically connected to each other. The optical signal conversion module is used to convert the encrypted matrix information into an information frequency band that can be used for optical communication transmission, and receive the information frequency band and restore it back to matrix information; A frequency band encryption module, which is composed of a frequency band decomposition unit, a frequency band sorting unit and a sorting scheme unit which are electrically connected to each other. The frequency band encryption module is used to encrypt the transmitted information frequency band and encrypt and sort the information frequency band according to a rule; The matrix decryption module is composed of a key reading unit, a matrix information extraction unit and an information restoration unit which are electrically connected to each other. The matrix decryption module is used to decrypt the encrypted matrix information using a local matrix template and decode and restore the information.

[0020] The encryption matrix module and the matrix decryption module share a set of matrix templates.

[0021] An optical communication method based on secure information transmission comprises the following steps: Step 1: The sender imports the information to be transmitted into the encryption matrix module, and uses the encryption matrix module to encrypt the information in a matrix form. The specific steps of matrix encryption are as follows: S1, decomposing the imported information through the information decomposition unit, classifying the information into multiple sub-groups, and classifying the multiple groups of information into two parent groups; The whole process of S2 and S1 is recorded by the matrix sorting unit and a report is generated; S3, importing the information of the two parent groups into the α matrix and the β matrix respectively through the matrix import unit to form matrix information; S4, the key generation unit generates a key for restoring the order of the decoded information according to the report generated in S2; S5. Output matrix information.

[0022] Step 2: Import the matrix information into the optical signal conversion module, and convert it into an information frequency band that can be used for optical communication transmission through the information conversion unit; Step 3: Import the information band into the band encryption module for secondary encryption, and then transfer it to the optical signal conversion module for transmission through the signal transceiver unit. The specific steps of secondary encryption are as follows: S1, decomposing the information frequency band into multiple frequency bands through a frequency band decomposition unit; S2. rearrange through a frequency band sorting unit according to a scheme stored in a sorting scheme unit; S3. Add a serial number for reading, decoding and recovery at the beginning of the rearranged information frequency band.

[0023] Step 4: The receiver receives the information band through the signal transceiver unit, and imports it into the band encryption module for decoding to restore the matrix information; Step 5: The receiver imports the matrix information into the matrix decryption module, and performs matrix restoration and export on the matrix information. The specific steps of matrix restoration are as follows: S1, importing the matrix information into the matrix information extraction unit and the key into the key reading unit; S2, the matrix information extraction unit uses the intersection of the α matrix and the β matrix as the decoding information to obtain the extraction method of the information in the α matrix and the β matrix; S3, extracting information from the α matrix and the β matrix using the extraction method obtained in S2; S4. Use the key to sort and restore the extracted information.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical communication system based on secure information transmission, characterized in that: include: An encryption matrix module, which is used to decompose information and insert the decomposed information into two blank matrices for matrix encryption; An optical signal conversion module, which is used to convert the encrypted matrix information into an information frequency band that can be transmitted by optical communication, and receive the information frequency band and restore it back to matrix information; A frequency band encryption module, which is used to encrypt the transmitted information frequency band and encrypt and sort the information frequency band according to a rule; The matrix decryption module is used to decrypt the encrypted matrix information using a local matrix template to decode and restore the information.

2. The optical communication system based on secure information transmission according to claim 1, characterized in that: The encryption matrix module and the matrix decryption module share a set of matrix templates.

3. The optical communication system based on secure information transmission according to claim 1, characterized in that: The encryption matrix module includes an information decomposition unit, a matrix importing unit, a matrix sorting unit and a key generating unit which are electrically connected to each other.

4. The optical communication system based on secure information transmission according to claim 1, characterized in that: The optical signal conversion module includes an information conversion unit, a frequency band restoration unit and a signal transceiver unit which are electrically connected to each other.

5. The optical communication system based on secure information transmission according to claim 1, characterized in that: The frequency band encryption module includes a frequency band decomposition unit, a frequency band sorting unit and a sorting scheme unit which are electrically connected to each other.

6. The optical communication system based on secure information transmission according to claim 1, characterized in that: The matrix decryption module comprises a key reading unit, a matrix information extraction unit and an information restoration unit which are electrically connected to each other.

7. An optical communication method based on secure information transmission, using an optical communication system based on secure information transmission as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: The sender imports the information to be transmitted into the encryption matrix module, and uses the encryption matrix module to matrix-encrypt the information; Step 2: Import the matrix information into the optical signal conversion module, and convert it into an information frequency band that can be used for optical communication transmission through the information conversion unit; Step 3: The information frequency band is imported into the frequency band encryption module for secondary encryption, and then transferred to the optical signal conversion module for transmission through the signal transceiver unit; Step 4: The receiver receives the information band through the signal transceiver unit, and imports it into the band encryption module for decoding to restore the matrix information; Step 5: The receiver imports the matrix information into the matrix decryption module and exports the matrix information through matrix restoration.

8. The optical communication method based on secure information transmission according to claim 7, characterized in that: The specific steps of matrix encryption in step 1 are: S1, decomposing the imported information through the information decomposition unit, classifying the information into multiple sub-groups, and classifying the multiple groups of information into two parent groups; S2. The whole process of S1 is recorded by the matrix sorting unit and a report is generated; S3, importing the information of the two parent groups into the α matrix and the β matrix respectively through the matrix import unit to form matrix information; S4, the key generation unit generates a key for restoring the order of the decoded information according to the report generated in S2; S5. Output matrix information.

9. The optical communication method based on secure information transmission according to claim 7, characterized in that: The specific steps of the secondary encryption in step 3 are: S1, decomposing the information frequency band into multiple frequency bands through a frequency band decomposition unit; S2. rearrange through a frequency band sorting unit according to a scheme stored in a sorting scheme unit; S3. Add a serial number for reading, decoding and recovery at the beginning of the rearranged information frequency band.

10. The optical communication method based on secure information transmission according to claim 7, characterized in that: The specific steps of matrix restoration in step 5 are: S1, importing the matrix information into the matrix information extraction unit and the key into the key reading unit; S2, the matrix information extraction unit uses the intersection of the α matrix and the β matrix as the decoding information to obtain the extraction method of the information in the α matrix and the β matrix; S3, extracting information from the α matrix and the β matrix using the extraction method obtained in S2; S4. Use the key to sort and restore the extracted information.

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