Network security data transmission and encryption system and method based on privacy protection

Abstract

The invention discloses a network security data transmission and encryption system and method based on privacy protection, relates to the technical field of data transmission, and solves the problems that the influence of conversion efficiency between different data formats on the overall transmission timeliness is not fully considered, so that the data transmission delay is too high, the real-time service demand cannot be met, and the data transmission efficiency is poor. According to the method, the conversion efficiency and the transmission speed of each transmission data format are calculated, a comprehensive selection value is obtained, a standard transmission format is selected, and the network data are automatically converted, so that the data transmission suitability and efficiency are greatly improved, and the transmission hindrance caused by the format problem is reduced; according to the parity of the data capacity of the high-capacity data packet, the processing mode of odd-bit or even-bit binary numbers is flexibly adjusted to cooperate with the overall reverse operation; and the small-capacity data packets execute operations such as reverse order and repeated data displacement in a classified manner according to whether repeated data exist or not, so that different types of attacks are resisted, and data privacy is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of data transmission, and in particular to a network data transmission security and encryption system and method based on privacy protection. Background Art

[0002] In today's digital age, network data is growing explosively, and all kinds of information are rapidly flowing on the network, covering sensitive content such as personal privacy, corporate secrets, and key business data. At the same time, the network environment is becoming more and more complex, network attack methods are emerging in an endless stream, and data leakage and tampering incidents occur frequently, causing huge losses to individuals, enterprises and even the entire society.

[0003] The patent with publication number CN107682141A discloses a data encryption method and system for data transmission, the method comprising: when a first terminal establishes a session connection with a second terminal, inputting the identification information of the session connection into an asymmetric encryption key generation algorithm, generating the asymmetric encryption public key and private key, 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 the symmetric encryption key generation algorithm; the second terminal encrypts the data transmission key according to the asymmetric encryption encryption algorithm and the public key, obtains key-encrypted data, and sends the key-encrypted data to the first terminal; the first terminal decrypts the key-encrypted 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, and are difficult to adapt to diverse data types, complex and changeable network transmission protocols, and increasingly stringent privacy protection requirements.

[0005] Some conventional data transmission solutions do not fully consider the impact of conversion efficiency between different data formats on the overall transmission timeliness, resulting in excessive data transmission delays and failure to meet real-time business requirements, which in turn poses data security risks and exposes privacy data to risks. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a network security data transmission and encryption system and method based on privacy protection, which solves the problem of not fully considering the impact of the conversion efficiency between different data formats on the overall transmission timeliness, resulting in excessive data transmission delays and inability to meet real-time business demands, thereby posing a potential data security risk.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a network data security and encryption system based on privacy protection, comprising:

[0008] The data information acquisition module is used to acquire network data and the corresponding data transmission protocol, and transmit the acquired network data and data transmission protocol 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, select a standard transmission format by analyzing the data format corresponding to the data transmission protocol, and perform conversion analysis on the data format of the network data to generate a conversion analysis result, and transmit the conversion analysis result to the transmission encryption analysis module;

[0010] The transmission encryption analysis module is used to perform encryption analysis on the acquired conversion network data, obtain data packets by segmenting the conversion network data and combining them according to preset rules, and encrypt them in different ways based on the data capacity of the combined packets, and generate encryption information, and then transmit the encrypted information to the encryption information output module;

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

[0012] As a further solution of the present invention, the specific manner in which the data transmission analysis module analyzes the data transmission of network data is:

[0013] All transmission data formats corresponding to the data transmission protocol are obtained, and are labeled as i, where i=1, 2, ..., j, where j represents the number of transmission data formats. At the same time, the data format corresponding to the network data is obtained and recorded as the real-time format, and it is determined whether the real-time format needs to be converted. If the real-time format needs to be converted, information requiring conversion is generated. Otherwise, if the real-time format does not need to be converted, information not requiring conversion is generated, and the generated information requiring conversion is analyzed.

[0014] As a further solution of the present invention, the specific manner in which the data transmission analysis module analyzes the generated information requiring conversion is:

[0015] Obtain the transmission speed corresponding to the transmission data format i as Vi, obtain the data with a data capacity of L converted in the transmission data format i within time t, and obtain the error data capacity obtained after the conversion within time t as L1, and then calculate the data conversion error rate At the same time, the conversion time corresponding to the data capacity L is obtained as T1, and the data conversion speed is calculated

[0016] Substitute the obtained parameters into the formula The conversion efficiency P1 corresponding to the transmission 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 transmission 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 recorded as Fi, and the transmission data format corresponding to the maximum comprehensive selection value Fi is selected 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.

[0018] As a further solution of the present invention, the specific method in which the transmission encryption analysis module performs encryption analysis on the conversion network data is:

[0019] Obtain all the converted network data and label them as n, where n=1, 2, ..., m, then obtain the data capacity corresponding to the converted network data and record it as Ln, and at the same time combine the corresponding converted network data with the same data capacity Ln to obtain a data packet, and for the remaining converted network data with different data capacities, combine them in pairs according to the labels to obtain a data packet, and at the same time label all the obtained data packets as o, where o=1, 2, ..., c, where c represents the number of data packets;

[0020] Then, the data capacity Lo corresponding to the data packet o is compared with the preset value Ly, the data packet whose data capacity Lo is greater than the preset value Ly is marked as a large-capacity data packet, and the data packet whose data capacity Lo is 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 separately.

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

[0022] All large-capacity data packets are obtained and divided into two equal parts to obtain equally divided large-capacity data packets. At the same time, the equally divided large-capacity data packets are converted into binary. Then, the data capacity of the equally divided large-capacity data packets is obtained, and different encryption methods are performed based on the numerical properties of the data capacity. The specific encryption methods are as follows:

[0023] If the numerical property of the data capacity is an odd number, all odd binary numbers of the large-capacity data packet will be evenly divided and processed in reverse order, and the whole will be processed in reverse order. Conversely, if the numerical property of the data capacity is an even number, all even numbers of the large-capacity data packet will be evenly divided into binary numbers and processed in reverse order to generate encrypted information.

[0024] As a further solution of the present invention, the specific manner in which the transmission encryption analysis module analyzes the small-capacity data packet is as follows:

[0025] Obtain all small-capacity data packets, convert the small-capacity data packets into binary, and perform encryption analysis based on the existence of duplicate data in the small-capacity data packets. If there is no duplicate data in the small-capacity data packets, the small-capacity data packets are processed in reverse order as a whole to generate encrypted information.

[0026] On the contrary, if there is duplicate data in the small-capacity data packet, the duplicate data is extracted and the position of the duplicate data is marked. Then the data capacity of the small-capacity data packet is obtained and judged. If the data capacity of the small-capacity data packet is an odd number, the extracted duplicate data is inserted to the very end of the whole, and the whole is reversed to generate encrypted information. If the data capacity of the small-capacity data packet is an even number, the whole is first reversed, and the extracted duplicate data is inserted to the very front of the whole to generate encrypted information.

[0027] A privacy-protection-based network data transmission and encryption method, the method specifically comprising the following steps:

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

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

[0030] Step 3: Encrypt and analyze the converted network data, obtain data packets by segmenting the converted network data and combining them according to preset rules, and classify the data packets into large-capacity data packets and small-capacity data packets based on the data capacity of the data packets;

[0031] Step 4: Divide the large-capacity 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;

[0032] Step 5: Identify duplicate data in the small-capacity data packet, and perform different encryption based on the data capacity of the duplicate data to generate encrypted information.

[0033] The present invention provides a network data transmission and encryption system and method based on privacy protection. Compared with the prior art, it has the following beneficial effects:

[0034] The present invention obtains network data and corresponding transmission protocols comprehensively, calculates the conversion efficiency and transmission speed of each transmission data format, obtains a comprehensive selection value, selects a standard transmission format and automatically converts network data, greatly improves data transmission adaptability and efficiency, and reduces transmission obstacles caused by format problems;

[0035] Unique encryption methods are designed for large-capacity and small-capacity data packets. Based on the parity of the data capacity of large-capacity data packets, the processing method of odd or even binary digits is flexibly adjusted to cooperate with the overall reversal operation; for small-capacity data packets, according to whether there is repeated data, operations such as reversal and repeated data displacement are performed in a classified manner, which significantly enhances the encryption effect, resists different types of attacks, and protects data privacy;

[0036] By optimizing the format conversion process and implementing precise encryption, we can break the deadlock between transmission efficiency and security in traditional technologies, achieve efficient data transmission while maintaining high-intensity encryption protection, and meet the dual requirements of current real-time business for fast and secure data flow. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0038] Figure 2 It is a diagram of the steps of the present invention. DETAILED DESCRIPTION

[0039] 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.

[0040] For example, see Figure 1 The present application provides a network data transmission and encryption system based on privacy protection, including: a data information acquisition module, a data transmission analysis module, a transmission encryption analysis module and an encrypted information output module, and in combination with the attached Figure 1 It can be known that the above functional modules are electrically connected in a unidirectional manner.

[0041] The data information acquisition module is used to acquire network data and the corresponding data transmission protocol, and transmit the acquired network data and data transmission protocol to the data transmission analysis module. The specific acquired network data includes data format and 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, select the standard transmission format by analyzing the data format corresponding to the data transmission protocol, and perform conversion analysis on the data format of the network data to generate conversion analysis results, and transmit the conversion analysis results to the transmission encryption analysis module.

[0043] Obtain all transmission data formats corresponding to the data transmission protocol, and label them as i, and i=1, 2, ..., j, where j represents the number of transmission data formats. At the same time, obtain the data format corresponding to the network data and record it as the real-time format, and judge whether the real-time format needs to be converted. The specific judgment method is to match and judge with the data format corresponding to the current data transmission protocol. If the real-time format needs to be converted, then generate the information that needs to be converted. On the contrary, if the real-time format does not need to be converted, then generate the information that does not need to be converted. For the network data that does not need to be converted to the real-time format, it is directly transmitted to the transmission encryption analysis module, and the generated information that needs to be converted is analyzed at the same time;

[0044] The transmission speed corresponding to the transmission data format i is obtained and recorded as Vi. At the same time, the conversion efficiency of the transmission data format is calculated according to the conversion speed and conversion error rate corresponding to the transmission data format and recorded as Pi. The specific calculation method is as follows:

[0045] The data with a data capacity of L is converted in the transmission data format i within the acquisition time t, and the specific values ​​of the time t and the data capacity L are set by the operator, and the error data capacity obtained after the conversion within the acquisition time t is recorded as L1, and then the data conversion error rate is calculated At the same time, the conversion time corresponding to the data capacity L is obtained and recorded 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 transmission 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 transmission data formats i;

[0047] The transmission speed Vi and conversion efficiency Pi of the transmission data format i are summed to obtain a comprehensive selection value, which is recorded as Fi. The summation here is simply performed by summing the values. At the same time, the transmission data format corresponding to the maximum comprehensive selection value Fi is selected and recorded 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. The data packets are obtained by segmenting the conversion network data and combining them according to preset rules. At the same time, different encryption methods are performed based on the data capacity of the combined data packet, and encrypted information is generated. The encrypted information is then transmitted to the encryption information output module.

[0049] All the converted network data are obtained and labeled as n, where n=1, 2, ..., m, and the converted network data here include network data that has undergone format conversion and network data that has not undergone format conversion, and the labels here are labeled in order from small to large data capacity, then the data capacity corresponding to the converted network data is obtained and recorded as Ln, and the corresponding converted network data with the same data capacity Ln are combined to obtain a data packet, and for the remaining converted network data with different data capacities, two by two are combined according to the labels to obtain a data packet, and all the obtained data packets are labeled as o, where o=1, 2, ..., c, where c represents the number of data packets;

[0050] Then, the data capacity Lo corresponding to the data packet o is compared with the preset value Ly, and the specific value of the preset value Ly is determined according to the unit transmission capacity of the corresponding standard data format, and the data capacity Lo here is the sum of the data capacities of all converted network data in the data packet, and the data packet with a data capacity Lo greater than the preset value Ly is marked as a large-capacity data packet, and the data packet with a data capacity Lo less than the preset value Ly is marked as a small-capacity data packet;

[0051] All large-capacity data packets are obtained and divided into two equal parts to obtain equally divided large-capacity data packets. At the same time, the equally divided large-capacity data packets are converted into binary. Then, the data capacity of the equally divided large-capacity data packets is obtained, and different encryption methods are performed based on the numerical properties of the data capacity. The specific encryption methods are as follows:

[0052] If the data capacity is an odd number, all the odd-bit binary numbers of the equally divided large-capacity data packet are processed in the opposite way, and only the even-bits are inverted. In 10110, the even-bits are the 2nd and 4th bits, which become 11100 after inversion. In 01101, the even-bits are the 2nd and 4th bits, which become 00111 after inversion. At the same time, the whole is processed in reverse order, and the two parts after the even-bit inversion are spliced ​​into 1110000111, and then reversed, and finally the reversed result of 1110000111 is obtained, that is, 11100001 11. On the contrary, if the numerical property of the data capacity is an even number, all even numbers of the large-capacity data packet are equally divided into binary numbers for reverse processing. The binary number of the data packet is 1101011, and the data capacity is 7 bits, 7 is an odd number. For the first part 110, the odd bits are the 1st and 3rd bits, which become 011 after inversion; for the second part 1011, the odd bits are the 1st and 3rd bits, which become 0010 after inversion. At the same time, the whole is reversed, and the two reversed parts are spliced ​​to get 0110010. The result after inversion is 0100110, and the encrypted information is generated.

[0053] Then, all small-capacity data packets are obtained, and the small-capacity data packets are converted into binary form. The encryption analysis is performed based on the existence of duplicate data in the small-capacity data packets. The specific encryption analysis method is as follows:

[0054] If there is no duplicate data in the small-capacity data packet, and the small-capacity data packet here refers to the small-capacity data packet after binary conversion, the small-capacity data packet is processed in reverse order as a whole to generate encrypted information. Otherwise, if there is duplicate data in the small-capacity data packet, the duplicate data is extracted and the position of the duplicate data is marked. Then, the data capacity of the small-capacity data packet is obtained and judged. If the data capacity of the small-capacity data packet is an odd number, the extracted duplicate data is inserted to the very end of the whole, and the whole is reversed to generate encrypted information. If the data capacity of the small-capacity data packet is an even number, the whole is first reversed, and the extracted duplicate data is inserted to the very front of the whole to generate encrypted information. It is assumed here that there is only one duplicate data in the small-capacity data packet.

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

[0056] The encrypted information output module is used to store the acquired encrypted information.

[0057] Embodiment 2, as Embodiment 2 of the present invention, this embodiment is implemented on the basis of Embodiment 1, and the difference from Embodiment 1 is as follows:

[0058] When there are multiple duplicate data, the duplicate data are numbered as 1, 2, ... in the order of appearance, and then the data capacity of the small-capacity data packet is obtained. If the data capacity of the small-capacity data packet is an odd number, the duplicate data are inserted into the small-capacity data packet in the order of the numbers, and the insertion method is to insert the binary digits corresponding to the lowest common factor of the data capacity. For example, if the lowest common factor is 5, the first duplicate data is inserted at the fifth binary digit, and the second is inserted at the tenth binary digit, and so on.

[0059] If the data capacity of the small-capacity data packet is an even number, then the insertion method of odd numbers is similarly inserted into the lowest common factor to generate encrypted information. And the common factor here does not include 1.

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

[0061] Example 4, please refer to Figure 2 The present application provides a privacy protection-based network 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 transmission data format corresponding to the data transmission protocol;

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

[0064] Step 3: Encrypt and analyze the obtained converted network data, obtain data packets by segmenting the converted network data and combining them according to preset rules, and classify them into large-capacity data packets and small-capacity data packets based on the data capacity of the data packets, and the encryption method here is the same as the processing method of the transmission encryption analysis module in Example 1;

[0065] Step 4: Divide the large-capacity 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, and the encryption method here is the same as the processing method of the transmission encryption analysis module in Example 1;

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

[0067] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0068] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A network data security and encryption system based on privacy protection, characterized in that: include: The data information acquisition module is used to acquire network data and the corresponding data transmission protocol, and transmit the acquired network data and data transmission protocol to the data transmission analysis module; The data transmission analysis module is used to analyze the data transmission of network data according to the acquired data transmission protocol, select a standard transmission format by analyzing the data format corresponding to the data transmission protocol, and perform conversion analysis on the data format of the network data to generate a conversion analysis result, and transmit the conversion analysis result to the transmission encryption analysis module; The transmission encryption analysis module is used to perform encryption analysis on the acquired conversion network data, obtain data packets by segmenting the conversion network data and combining them according to preset rules, and encrypt them in different ways based on the data capacity of the combined packets, and generate encryption information, and then transmit the encrypted information to the encryption information output module; The encrypted information output module is used to store the acquired encrypted information.

2. A privacy protection-based network data transmission and encryption system according to claim 1, characterized in that: The specific method in which the data transmission analysis module analyzes the data transmission of network data is as follows: All transmission data formats corresponding to the data transmission protocol are obtained, and are labeled as i, where i=1, 2, ..., j, where j represents the number of transmission data formats. At the same time, the data format corresponding to the network data is obtained and recorded as the real-time format, and it is determined whether the real-time format needs to be converted. If the real-time format needs to be converted, information requiring conversion is generated. Otherwise, if the real-time format does not need to be converted, information not requiring conversion is generated, and the generated information requiring conversion is analyzed.

3. A privacy protection-based network data transmission and encryption system according to claim 2, characterized in that: The specific method in which the data transmission analysis module analyzes the generated information requiring conversion is as follows: Obtain the transmission speed corresponding to the transmission data format i as Vi, obtain the data with a data capacity of L converted in the transmission data format i within time t, and obtain the error data capacity obtained after the conversion within time t as L1, and then calculate the data conversion error rate At the same time, the conversion time corresponding to the data capacity L is obtained as T1, and the data conversion speed is calculated Substitute the obtained parameters into the formula The conversion efficiency P1 corresponding to the transmission 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 transmission data formats i; 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 maximum comprehensive selection value Fi is selected and recorded 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.

4. According to claim 1, a network data transmission and encryption system based on privacy protection is characterized in that: The specific method in which the transmission encryption analysis module performs encryption analysis on the conversion network data is as follows: Obtain all the converted network data and label them as n, where n=1, 2, ..., m, then obtain the data capacity corresponding to the converted network data and record it as Ln, and at the same time combine the corresponding converted network data with the same data capacity Ln to obtain a data packet, and for the remaining converted network data with different data capacities, combine them in pairs according to the labels to obtain a data packet, and at the same time label all the obtained data packets as o, where o=1, 2, ..., c, where c represents the number of data packets; Then, the data capacity Lo corresponding to the data packet o is compared with the preset value Ly, the data packet whose data capacity Lo is greater than the preset value Ly is marked as a large-capacity data packet, and the data packet whose data capacity Lo is 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 separately.

5. A privacy protection-based network data transmission and encryption system according to claim 4, characterized in that: The specific method in which the transmission encryption analysis module analyzes the large-capacity data packet is as follows: All large-capacity data packets are obtained and divided into two equal parts to obtain equally divided large-capacity data packets. At the same time, the equally divided large-capacity data packets are converted into binary. Then, the data capacity of the equally divided large-capacity data packets is obtained, and different encryption methods are performed based on the numerical properties of the data capacity. The specific encryption methods are as follows: If the numerical property of the data capacity is an odd number, all odd binary numbers of the large-capacity data packet will be evenly divided and processed in reverse order, and the whole will be processed in reverse order. Conversely, if the numerical property of the data capacity is an even number, all even numbers of the large-capacity data packet will be evenly divided into binary numbers and processed in reverse order to generate encrypted information.

6. A privacy protection-based network data transmission and encryption system according to claim 4, characterized in that: The specific method in which the transmission encryption analysis module analyzes the small-capacity data packet is as follows: Obtain all small-capacity data packets, convert the small-capacity data packets into binary, and perform encryption analysis based on the existence of duplicate data in the small-capacity data packets. If there is no duplicate data in the small-capacity data packets, the small-capacity data packets are processed in reverse order as a whole to generate encrypted information. On the contrary, if there is duplicate data in the small-capacity data packet, the duplicate data is extracted and the position of the duplicate data is marked. Then the data capacity of the small-capacity data packet is obtained and judged. If the data capacity of the small-capacity data packet is an odd number, the extracted duplicate data is inserted to the very end of the whole, and the whole is reversed to generate encrypted information. If the data capacity of the small-capacity data packet is an even number, the whole is first reversed, and the extracted duplicate data is inserted to the very front of the whole to generate encrypted information.

7. A privacy-protection-based network data security and encryption method, the method being used to execute a privacy-protection-based network data security and encryption system as claimed in any one of claims 1 to 6, characterized in that: The method specifically comprises the following steps: Step 1: Obtain network data and the corresponding data transmission protocol, and label the transmission data format corresponding to the data transmission protocol; Step 2: Calculate the comprehensive selection value according to the transmission speed and conversion efficiency corresponding to the transmission data format, select the standard conversion format according to the comprehensive selection value, and convert the network data based on the standard conversion format; Step 3: Perform encryption analysis on the obtained converted network data, obtain data packets by segmenting the converted network data and combining them according to preset rules, and classify the data packets into large-capacity data packets and small-capacity data packets based on the data capacity of the data packets; Step 4: Divide the large-capacity 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; Step 5: Identify duplicate data in the small-capacity data packet, and perform different encryption based on the data capacity of the duplicate data to generate encrypted information.

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