A privacy-preserving network security data transmission and encryption system and method

Abstract

This invention discloses a privacy-protected network security data transmission and encryption system and method. This invention relates to the field of data transmission technology and solves the technical problem of insufficient consideration of the impact of conversion efficiency between different data formats on overall transmission timeliness, resulting in excessively high data transmission latency, failing to meet real-time business requirements, and thus creating data security risks. This invention calculates the conversion efficiency and transmission speed of each transmission data format to obtain a comprehensive selection value, selects a standard transmission format, and automatically converts network data, significantly improving data transmission adaptability and efficiency, reducing transmission obstacles caused by format issues. Based on the parity of the data capacity of large-capacity data packets, it flexibly adjusts the processing method of odd or even bits of binary data, in conjunction with overall reversal operations; for small-capacity data packets, it performs reversal, duplicate data shifting, and other operations according to whether there is duplicate data, resisting different types of attacks and protecting data privacy.

Description

Technical Field

[0001] This invention relates to the field of data transmission technology, specifically to a privacy-protected network security data transmission and encryption system and method. Background Technology

[0002] In today's digital age, network data is growing explosively, with all kinds of information flowing rapidly across the network, covering sensitive content such as personal privacy, corporate secrets, and critical business data. At the same time, the network environment is becoming increasingly complex, with cyberattack methods emerging one after another, and data breaches and tampering incidents occurring frequently, causing huge losses to individuals, businesses, and even society as a whole.

[0003] Patent CN107682141A discloses a data encryption method and system for data transmission. The method includes: when a first terminal establishes a session connection with a second terminal, inputting the session connection identification information into an asymmetric encryption key generation algorithm to generate a public key and a private key for asymmetric encryption, and sending the public key to the second terminal; the second terminal responds to the received public key and generates a data transmission key according to a symmetric encryption key generation algorithm; the second terminal encrypts the data transmission key according to the asymmetric encryption encryption algorithm and the public key to obtain encrypted key data, and sends the encrypted key data to the first terminal; the first terminal decrypts the encrypted key data according to the asymmetric encryption decryption algorithm and the private key to obtain the data transmission key.

[0004] Some existing data transmission and encryption methods often focus on the application of a single encryption algorithm or basic data format specifications, making it difficult to adapt to diverse data types, complex and ever-changing network transmission protocols, and increasingly stringent privacy protection requirements.

[0005] Some conventional data transmission schemes fail to adequately consider the impact of conversion efficiency between different data formats on overall transmission timeliness, resulting in excessively high data transmission latency. This fails to meet real-time business requirements, thereby creating data security risks and exposing private data to danger. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a privacy-protected network security data transmission and encryption system and method. It solves the problem that the impact of conversion efficiency between different data formats on the overall transmission timeliness is not fully considered, resulting in excessively high data transmission latency, which fails to meet the demands of real-time business and thus poses a data security risk.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a privacy-protected network security data transmission and encryption system, comprising:

[0008] The data acquisition module is used to acquire network data and the corresponding data transmission protocols, and then transmit the acquired network data and data transmission protocols to the data transmission analysis module.

[0009] The data transmission analysis module is used to analyze the data transmission of network data according to the acquired data transmission protocol. It selects a standard transmission format by analyzing the data format corresponding to the data transmission protocol, and performs conversion analysis on the data format of the network data to generate conversion analysis results. At the same time, the conversion analysis results are transmitted to the transmission encryption analysis module.

[0010] The transmission encryption analysis module is used to perform encryption analysis on the acquired conversion network data. It divides the conversion network data and combines it according to preset rules to obtain data packets. At the same time, it encrypts the combined packets in different ways based on their data capacity and generates encrypted information. Then, it transmits the encrypted information to the encrypted information output module.

[0011] The encrypted information output module is used to store the acquired encrypted information.

[0012] As a further aspect of the present invention, the specific method by which the data transmission analysis module analyzes the data transmission of network data is as follows:

[0013] Obtain all transmission data formats corresponding to the data transmission protocol and label them as i, where i = 1, 2, ..., j, and j represents the number of transmission data formats. At the same time, obtain the data format corresponding to the network data and label it as the real-time format. Determine whether the real-time format needs to be converted. If the real-time format needs to be converted, generate the conversion information. Otherwise, if the real-time format does not need to be converted, generate the no-conversion information. Analyze the generated conversion information.

[0014] As a further aspect of the present invention, the specific method by which the data transmission analysis module analyzes the generated information that needs to be transformed is as follows:

[0015] The transmission speed corresponding to the transmission data format i is denoted as Vi. The data of size L is converted using the transmission data format i within time t, and the error data size obtained after conversion within time t is denoted as L1. Then, the data conversion error rate is calculated. Simultaneously, obtain the conversion time corresponding to the data capacity L, denoted as T1, and calculate the data conversion speed.

[0016] Substitute the obtained parameters into the formula The conversion efficiency P1 corresponding to the transmitted data format i is calculated, where a1 and a2 are preset proportional coefficients, and the specific values ​​are set by the operator. Similarly, the above calculation is performed on the conversion efficiency of all transmitted data formats i.

[0017] The transmission speed Vi and conversion efficiency Pi of the transmission data format i are summed to obtain a comprehensive selection value denoted as Fi. At the same time, the transmission data format corresponding to the largest comprehensive selection value Fi is selected and denoted as the standard transmission format. Then, the network data format is converted into the standard transmission format to obtain the converted network data.

[0018] As a further aspect of the present invention, the specific method by which the transmission encryption analysis module performs encryption analysis on the converted network data is as follows:

[0019] All transformation network data are obtained and labeled as n, where n = 1, 2, ..., m. Then, the data capacity corresponding to the transformation network data is obtained and labeled as Ln. At the same time, transformation network data with the same data capacity Ln are combined to obtain data packets. For the remaining transformation network data with different data capacities, they are combined in pairs according to their labels to obtain data packets. All obtained data packets are labeled as o, where o = 1, 2, ..., c, where c represents the number of data packets.

[0020] Next, the data capacity Lo corresponding to data packet o is compared with the preset value Ly. Data packets with data capacity Lo greater than the preset value Ly are marked as large-capacity data packets, and data packets with data capacity Lo less than the preset value Ly are marked as small-capacity data packets. The large-capacity data packets and the small-capacity data packets are analyzed separately.

[0021] As a further aspect of the present invention, the specific method by which the transmission encryption analysis module analyzes large-capacity data packets is as follows:

[0022] All large data packets are acquired and divided into two equal parts to obtain evenly divided large data packets. These evenly divided large data packets are then converted to binary form. The data size of each evenly divided large data packet is then calculated, and different encryption methods are applied based on the numerical properties of the data size. The specific encryption methods are as follows:

[0023] If the data capacity is odd, all odd-numbered bits of the large data packet are reversed, and the entire packet is processed in reverse order. Conversely, if the data capacity is even, all even-numbered bits of the large data packet are reversed to generate encrypted information.

[0024] As a further aspect of the present invention, the specific method by which the transmission encryption analysis module analyzes small-capacity data packets is as follows:

[0025] All small data packets are acquired, and the small data packets are converted into binary. The encryption analysis is performed based on the presence of duplicate data in the small data packets. If there is no duplicate data in the small data packets, the entire small data packets are reversed to generate encrypted information.

[0026] Conversely, if duplicate data exists in a small data packet, the duplicate data is extracted and its position is marked. Then, the data size of the small data packet is obtained and determined. If the data size of the small data packet is odd, the extracted duplicate data is inserted at the end of the whole, and the whole is reversed to generate encrypted information. If the data size of the small data packet is even, the whole is reversed first, and the extracted duplicate data is inserted at the beginning of the whole to generate encrypted information.

[0027] A privacy-preserving network security data transmission and encryption method, which specifically includes the following steps:

[0028] Step 1: Obtain network data and the corresponding data transmission protocol, and label the data transmission format corresponding to the data transmission protocol;

[0029] Step 2: Calculate the comprehensive selection value based on the transmission speed and conversion efficiency corresponding to the transmission data format. At the same time, select the standard conversion format based on the comprehensive selection value, and convert the network data according to the standard conversion format.

[0030] Step 3: Encrypt and analyze the obtained transformation network data. The transformation network data is segmented and combined according to preset rules to obtain data packets, which are then classified into large-capacity data packets and small-capacity data packets based on their data capacity.

[0031] Step 4: Divide the large data packet into two equal parts, and encrypt it in different ways according to the numerical properties of the corresponding data size to generate encrypted information;

[0032] Step 5: Identify duplicate data in small data packets and generate encrypted information based on the data size of the duplicate data using different encryption methods.

[0033] This invention provides a privacy-preserving network security data transmission and encryption system and method. Compared with existing technologies, it has the following advantages:

[0034] This invention comprehensively acquires network data and corresponding transmission protocols, calculates the conversion efficiency and transmission speed of each transmission data format, obtains a comprehensive selection value, selects the standard transmission format, and automatically converts network data, thereby greatly improving the adaptability and efficiency of data transmission and reducing transmission obstacles caused by format issues.

[0035] Unique encryption methods are designed for large and small data packets respectively. For large data packets, the processing of odd or even bits of binary data is flexibly adjusted based on the parity of the data size, combined with an overall reversal operation. For small data packets, operations such as reversal and duplicate data shifting are performed based on the presence or absence of duplicate data, significantly enhancing encryption effectiveness, resisting different types of attacks, and protecting data privacy.

[0036] By optimizing the format conversion process and implementing precise encryption, the contradiction between transmission efficiency and security in traditional technologies is broken, enabling high-strength encryption protection while transmitting data efficiently, thus meeting the dual requirements of current real-time business for fast and secure data flow. Attached Figure Description

[0037] Figure 1 This is a block diagram illustrating the system principle of the present invention;

[0038] Figure 2 This is a diagram illustrating the steps and methods of the present invention. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1, please refer to Figure 1 This application provides a privacy-protected network security data transmission and encryption system, including: a data information acquisition module, a data transmission analysis module, a transmission encryption analysis module, and an encrypted information output module, and in conjunction with the attached... Figure 1 It can be seen that the above functional modules are connected electrically in one direction.

[0041] The data acquisition module is used to acquire network data and the corresponding data transmission protocols, and then transmit the acquired network data and data transmission protocols to the data transmission analysis module. The acquired network data includes the data format and the corresponding data capacity.

[0042] The data transmission analysis module is used to analyze the data transmission of network data according to the acquired data transmission protocol. It selects a standard transmission format by analyzing the data format corresponding to the data transmission protocol, and performs conversion analysis on the data format of the network data to generate conversion analysis results. At the same time, the conversion analysis results are transmitted to the transmission encryption analysis module.

[0043] The system retrieves all data transmission formats corresponding to the data transmission protocol and labels them as i, where i = 1, 2, ..., j, and j represents the number of data transmission formats. It also retrieves the data format corresponding to the network data and labels it as the real-time format. The system then determines whether the real-time format needs to be converted. Specifically, it matches the real-time format with the data format corresponding to the current data transmission protocol. If conversion is required, a conversion information is generated; otherwise, no conversion is required. For network data that does not require real-time format conversion, it is directly transmitted to the transmission encryption analysis module, and the generated conversion information is analyzed.

[0044] The transmission speed corresponding to the transmission data format i is denoted as Vi. Simultaneously, the conversion efficiency of the transmission data format, denoted as Pi, is calculated based on the conversion speed and conversion error rate corresponding to the transmission data format. The specific calculation method is as follows:

[0045] Within time t, data of size L is converted using data format i. The specific values ​​of time t and data size L are set by the operator. The amount of erroneous data obtained after conversion within time t is recorded as L1. Then, the data conversion error rate is calculated. Simultaneously, the conversion time corresponding to the data capacity L is denoted as T1, where T1 is the actual conversion time required, and the data conversion speed is calculated.

[0046] Substitute the obtained parameters into the formula The conversion efficiency P1 corresponding to the transmitted data format i is calculated, where a1 and a2 are preset proportional coefficients, and the specific values ​​are set by the operator. Similarly, the above calculation is performed on the conversion efficiency of all transmitted data formats i.

[0047] The transmission speed Vi and conversion efficiency P i of the transmission data format i are summed to obtain a comprehensive selection value denoted as Fi. Here, the summation is only done by summing the values. At the same time, the transmission data format corresponding to the largest comprehensive selection value F i is selected and denoted as the standard transmission format. Then, the data format of the network data is converted into the standard transmission format to obtain the converted network data.

[0048] The transmission encryption analysis module is used to perform encryption analysis on the acquired conversion network data. It divides the conversion network data and combines it according to preset rules to obtain data packets. At the same time, it encrypts the combined packets in different ways based on their data capacity and generates encrypted information. Then, it transmits the encrypted information to the encrypted information output module.

[0049] Acquire all the transformation network data and label them as n, where n = 1, 2, ..., m. The transformation network data here includes network data that has undergone format conversion and network data that has not undergone format conversion. The labels are arranged in ascending order of data size. Next, acquire the data size corresponding to the transformation network data and label it as Ln. Combine the transformation network data with the same data size Ln to obtain data packets. For the remaining transformation network data with different data sizes, combine them in pairs according to their labels to obtain data packets. Label all the acquired data packets as o, where o = 1, 2, ..., c, where c represents the number of data packets.

[0050] Next, the data capacity Lo corresponding to data packet o is compared with the preset value Ly. The specific value of the preset value Ly is determined according to the unit transmission capacity of the corresponding standard data format. Here, the data capacity Lo is the sum of the data capacities of all converted network data in the data packet. Data packets with data capacity Lo greater than the preset value Ly are marked as large-capacity data packets, and data packets with data capacity Lo less than the preset value Ly are marked as small-capacity data packets.

[0051] All large data packets are acquired and divided into two equal parts to obtain evenly divided large data packets. These evenly divided large data packets are then converted to binary form. The data size of each evenly divided large data packet is then calculated, and different encryption methods are applied based on the numerical properties of the data size. The specific encryption methods are as follows:

[0052] If the data capacity is odd, all odd-numbered bits of the large data packet are inverted, while only the even-numbered bits are inverted. In 10110, the even-numbered bits are the 2nd and 4th bits, which become 11100 after inversion. In 01101, the even-numbered bits are the 2nd and 4th bits, which become 00111 after inversion. Simultaneously, the entire data is reversed. The two parts after inverting the even-numbered bits are concatenated to form 1110000111, which is then reversed again, resulting in the reversed 1110000111, or 11100001. 11. Conversely, if the data capacity is even, the even-numbered bits of the large data packet are divided into binary numbers and inverted. The binary representation of the data packet is 1101011, and the data capacity is 7 bits. Since 7 is an odd number, for the first part 110, the odd-numbered bits are the 1st and 3rd bits, which are inverted to become 011. For the second part 1011, the odd-numbered bits are the 1st and 3rd bits, which are inverted to become 0010. At the same time, the whole is reversed, and the two inverted parts are concatenated to get 0110010. The reversed result is 0100110, which generates the encrypted information.

[0053] Next, all small data packets are acquired, and these packets are converted to binary. Encryption analysis is then performed based on the presence of duplicate data within the small data packets. The specific encryption analysis method is as follows:

[0054] If there is no duplicate data in the small data packet (referring to the small data packet after binary conversion), the entire small data packet is reversed to generate encrypted information. Conversely, if there is duplicate data in the small data packet, the duplicate data is extracted and its position is marked. Then, the data size of the small data packet is obtained and judged. If the data size of the small data packet is odd, the extracted duplicate data is inserted at the end of the whole and the whole is reversed to generate encrypted information. If the data size of the small data packet is even, the whole is first reversed, and the extracted duplicate data is inserted at the beginning of the whole to generate encrypted information. It is assumed that there is only one duplicate data in the small data packet.

[0055] The generated encrypted information is then transmitted to the encrypted information output module.

[0056] Encrypted information output module, which is used to store the acquired encrypted information.

[0057] Example 2, as Example 2 of the present invention, is implemented based on Example 1, and differs from Example 1 in the following ways:

[0058] When there are multiple duplicate data, the duplicate data are numbered 1, 2, ... according to the order of their appearance. Then, the data capacity of the small data packet is obtained. If the data capacity of the small data packet is odd, the duplicate data is inserted into the small data packet in the order of the numbers. The insertion method is based on the number of binary bits corresponding to the least common factor of the data capacity. For example, if the least common factor is 5, the first duplicate data is inserted at the fifth binary bit position, the second is inserted at the tenth binary bit position, and so on.

[0059] If the data size of a small data packet is even, then the data is inserted into the least common factor in the same way as odd numbers, and encrypted information is generated. The least common factor here does not include 1.

[0060] Example 3, as Example 3 of the present invention, focuses on combining the implementation processes of Example 1 and Example 2.

[0061] Example 4, please refer to Figure 2 This application provides a privacy-preserving network security data transmission and encryption method, which specifically includes the following steps:

[0062] Step 1: Obtain network data and the corresponding data transmission protocol, and label the data transmission format corresponding to the data transmission protocol;

[0063] Step 2: Calculate the comprehensive selection value based on the transmission speed and conversion efficiency corresponding to the transmission data format. At the same time, select the standard conversion format based on the comprehensive selection value, and convert the network data according to the standard conversion format. The processing method here is the same as that of the data transmission analysis module in Example 1.

[0064] Step 3: Perform encryption analysis on the obtained conversion network data. The conversion network data is segmented and combined according to preset rules to obtain data packets. The data packets are classified into large-capacity data packets and small-capacity data packets based on their data capacity. The encryption method here is the same as the processing method of the transmission encryption analysis module in Implementation Example 1.

[0065] Step 4: Divide the large data packet into two equal parts, and encrypt it in different ways according to the numerical properties of the corresponding data capacity to generate encrypted information. The encryption method here is the same as the processing method of the transmission encryption analysis module in Implementation Example 1.

[0066] Step 5: Identify duplicate data in small-capacity data packets, and generate encrypted information by encrypting different data based on the data capacity of the duplicate data. The encryption method here is the same as the processing method of the transmission encryption analysis module in Implementation Example 1.

[0067] Some of the data in the above formulas are numerical calculations with dimensions removed, and the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0068] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A privacy protection based cyber security data transmission and encryption system, characterized in that, The application relates to a data transmission encryption analysis method and device. The data information collection module is used for collecting network data and corresponding data transmission protocols, and transmitting the collected network data and data transmission protocols to a data transmission analysis module. The data transmission analysis module is used for analyzing data transmission of the network data according to the collected data transmission protocols, selecting a standard transmission format by analyzing data formats corresponding to the data transmission protocols, and converting and analyzing the data format of the network data to generate a conversion analysis result, and transmitting the conversion analysis result to a transmission encryption analysis module. The transmission speed corresponding to the transmission data format i is denoted as Vi, the data with the data capacity L is converted in the acquisition time t with the transmission data format i, the error data capacity obtained after the conversion in the acquisition time t is denoted as L1, and then the conversion error rate of the data is calculated Meanwhile, the conversion time corresponding to the data capacity L is denoted as T1, and the conversion speed of the data is calculated Substitute the obtained parameters into the formula The conversion efficiency P1 corresponding to the transmission data format i is calculated, wherein a1 and a2 are preset proportion coefficients, and specific values are set by an operator. Similarly, the above calculation is performed on the conversion efficiency of all transmission data formats i. The transmission speed Vi and the conversion efficiency Pi of the transmission data format i are summed to obtain a comprehensive selection value F i, the transmission data format corresponding to the maximum comprehensive selection value F i is selected as the standard transmission format, and then the data format of the network data is converted into the standard transmission format to obtain converted network data. The transmission encryption analysis module is used for encrypting the converted network data, segmenting the converted network data, combining the segmented data according to a preset rule to obtain a data packet, encrypting the data packet in different ways based on the data capacity of the data packet, and generating encryption information, and then transmitting the encryption information to an encryption information output module. The encryption information output module is used for storing the obtained encryption information.

2. The privacy protection based network security data transmission and encryption system of claim 1, wherein, The data transmission analysis module analyzes the data transmission of the network data in the following specific manner: All transmission data formats corresponding to the data transmission protocols are obtained and are marked as i, i=1, 2,..., j, wherein j represents the number of the transmission data formats, the data format of the network data is obtained and is marked as a real-time format, it is judged whether the real-time format needs to be converted, if the real-time format needs to be converted, conversion information is generated, otherwise, if the real-time format does not need to be converted, no conversion information is generated, and the generated conversion information is analyzed.

3. The privacy protection based network security data transmission and encryption system of claim 1, wherein, The transmission encryption analysis module encrypts the converted network data in the following specific manner: All converted network data are obtained and are marked as n, n=1, 2,..., m, the data capacity of the converted network data is obtained and is marked as Ln, the converted network data corresponding to the same data capacity Ln are combined to obtain a data packet, the converted network data corresponding to different data capacities are combined according to the marks to obtain data packets, all the obtained data packets are marked as o, o=1, 2,..., c, wherein c represents the number of the data packets. The data capacity Lo of the data packet o is compared with a preset value Ly, the data packet with the data capacity Lo greater than the preset value Ly is marked as a large-capacity data packet, the data packet with the data capacity Lo less than the preset value Ly is marked as a small-capacity data packet, and the large-capacity data packet and the small-capacity data packet are analyzed respectively.

4. The privacy protection based network security data transmission and encryption system of claim 3, wherein, The transmission encryption analysis module analyzes the large-capacity data packet in the following specific manner: All large capacity data packets are obtained and two equal parts of the large capacity data packets are obtained, and the large capacity data packets are binary converted, then the data capacity of the large capacity data packets is obtained, and different encryption methods are performed based on the numerical properties of the data capacity, and the specific encryption methods are as follows: If the numerical property of the data capacity is odd, all odd binary numbers of the large capacity data packets are reversed, and the whole is reversed in sequence, otherwise, if the numerical property of the data capacity is even, all even binary numbers of the large capacity data packets are reversed, and the encrypted information is generated.

5. The privacy protection based network security data transmission and encryption system of claim 3, wherein, The specific way of analyzing the small capacity data packets by the transmission encryption analysis module is: All small capacity data packets are obtained, and the small capacity data packets are binary converted, and encryption analysis is performed according to the existence of repeated data in the small capacity data packets, if there is no repeated data in the small capacity data packets, the whole small capacity data packets are reversed in sequence to generate encrypted information; Otherwise, if there is repeated data in the small capacity data packets, the repeated data is extracted, and the position of the repeated data is marked, then the data capacity of the small capacity data packets is obtained and judged, if the data capacity of the small capacity data packets is odd, the extracted repeated data is inserted into the tail of the whole, and the whole is reversed in sequence to generate encrypted information, if the data capacity of the small capacity data packets is even, the whole is reversed in sequence first, and the extracted repeated data is inserted into the front end of the whole to generate encrypted information.

6. A privacy-preserving network security data transmission and encryption method, the method is used to execute a privacy-preserving network security data transmission and encryption system according to any one of claims 1-5, characterized in that, The method specifically comprises the following steps: Step one: obtaining network data and corresponding data transmission protocol, and marking the transmission data format corresponding to the data transmission protocol; Step two: calculating the comprehensive selection value according to the transmission speed and conversion efficiency of the transmission data format, selecting the standard conversion format according to the comprehensive selection value, and converting the network data according to the standard conversion format, and the specific processing method is as follows: The transmission speed corresponding to the transmission data format i is denoted as Vi, the data with the data capacity L is converted in the acquisition time t with the transmission data format i, the error data capacity obtained after the conversion in the acquisition time t is denoted as L1, and then the conversion error rate of the data is calculated Meanwhile, the conversion time corresponding to the data capacity L is denoted as T1, and the conversion speed of the data is calculated Substitute the obtained parameters into the formula The conversion efficiency P1 corresponding to the transmission data format i is calculated, wherein a1 and a2 are preset proportion coefficients, and specific values are set by an operator. Similarly, the above calculation is performed on the conversion efficiency of all transmission data formats i. The transmission speed Vi and conversion efficiency Pi of the transmission data format i are summed to obtain the comprehensive selection value F i, and the transmission data format corresponding to the maximum comprehensive selection value F i is selected as the standard transmission format; Step three: the converted network data is analyzed, the data packets are obtained by dividing the converted network data and combining according to the preset rules, and the data packets are classified into large capacity data packets and small capacity data packets based on the data capacity of the data packets; Step four: the large capacity data packets are divided into two equal parts, and different encryption methods are performed according to the numerical properties of the corresponding data capacity to generate encrypted information; Step five: the repeated data in the small capacity data packets is identified, and different encryption methods are performed based on the data capacity of the repeated data to generate encrypted information.

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