CN114626338A - Character encoding method, character decoding method, character encoding system, character decoding system, character encoding device, character decoding device, and storage medium - Google Patents

Abstract

The present application relates to a character encoding and decoding method, system, device and storage medium for data; wherein, the encoding method includes: acquiring the data to be encoded uploaded by the sender; calling the smart contract of the blockchain system to convert the The data is converted into a first numerical value of the first base; the first numerical value is encoded by using a threshold value pre-agreed with the receiving end, and the second numerical value of the first base corresponding to the data is obtained; according to the preset A character encoding table, for determining a character encoding result corresponding to the second numerical value. The present application is used to solve the technical problem in the prior art that the algorithm using symmetric or asymmetric encryption is cumbersome.

Description

Character encoding and decoding method, system, device and storage medium for data

technical field

The present application relates to the technical field of blockchain, and in particular, to a method, system, device and storage medium for character encoding and decoding of data.

Background technique

At present, most of the solutions for sensitive data encryption scenarios are carried out through symmetric or asymmetric encryption. In the end-to-end business process, the middleman is guaranteed to be visible and unreadable. The above traditional solutions are suitable for most scenarios.

However, for the sender, the encryption algorithm needs to be pre-configured. When sending sensitive data, the encryption algorithm is called, and the encryption algorithm is used to encrypt the sensitive data to be sent.

SUMMARY OF THE INVENTION

The present application provides a character encoding and decoding method, system, device and storage medium for data, which are used to solve the technical problem that the symmetric or asymmetric encryption algorithm is relatively cumbersome in the prior art.

In the first aspect, the embodiments of the present application provide a data character encoding method, which is applicable to a blockchain system, and the method includes:

Obtain the data to be encoded uploaded by the sender;

Invoke the smart contract of the blockchain system to convert the data into the first numerical value of the first system; encode the first numerical value with the threshold pre-agreed with the receiving end, and obtain the first numerical value corresponding to the data The second numerical value in a hexadecimal system; according to the preset character encoding table, determine the character encoding result corresponding to the second numerical value.

Optionally, encoding the first numerical value by using a threshold pre-agreed with the receiving end to obtain the second numerical value of the first system corresponding to the data, including:

Invoke the smart contract to convert the threshold into the first base, obtain the threshold of the first base, and calculate the sum of the first value and the threshold of the first base to obtain the first value corresponding to the data. The second value in unary.

Optionally, the character encoding result corresponding to the second numerical value is determined according to the preset character encoding table, including:

calling the smart contract to convert the second value into the third value of the second binary;

From the character encoding table, read the character encoding result corresponding to the third numerical value.

Optionally, the last session record of the sender and the receiver is stored in the blockchain system; before encoding the first numerical value with a threshold pre-agreed with the receiver, the method further includes:

Invoke the smart contract to obtain the session identification number corresponding to the last session record of the sender and the receiver;

A threshold pre-agreed with the receiving end is determined according to the session identification number.

Optionally, determining the threshold pre-agreed with the receiving end according to the session identification number, including:

From the session identification number, at least one bit of target data is read, and the at least one bit of target data is used as a threshold value pre-agreed with the receiving end.

In the second aspect, an embodiment of the present application provides a data character decoding method, which is applicable to a receiving end, and the method includes:

According to the preset character encoding table, determine the second numerical value of the first system corresponding to the character encoding result;

Decode the second numerical value by using the threshold value pre-agreed with the sender to obtain the first numerical value of the first system;

A decoding result is determined based on the first value.

Optionally, the second numerical value is decoded by using the threshold pre-agreed with the sender to obtain the first numerical value in the first system, including:

Converting the threshold into the first system to obtain the threshold of the first system;

Calculate the difference between the second numerical value and the threshold value of the first base to obtain the first numerical value of the first base.

In a third aspect, the embodiments of the present application provide a character encoding and decoding system for data, including: a blockchain system and a receiving end;

The blockchain system is used to obtain the data to be encoded uploaded by the sender; call the smart contract of the blockchain system to convert the data into the first numerical value of the first system; Encoding the first numerical value with the agreed threshold to obtain the second numerical value of the first system corresponding to the data; determining the character encoding result corresponding to the second numerical value according to the preset character encoding table; The receiving end sends the character encoding result;

The receiving end is used to determine, according to a preset character encoding table, the second numerical value of the first hexadecimal corresponding to the character encoding result; decode the second numerical value by using the threshold pre-agreed with the transmitting end to obtain The first numerical value of the first base; the decoding result is determined based on the first numerical value.

In a fourth aspect, an embodiment of the present application provides an electronic device, including: a processor, a memory, and a communication bus, wherein the processor and the memory communicate with each other through the communication bus;

the memory for storing computer programs;

The processor is configured to execute the program stored in the memory to implement the character encoding method for data described in the first aspect or the character decoding method for data described in the second aspect.

In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the method for character encoding of the data described in the first aspect or the method described in the second aspect is implemented. The character decoding method of the data.

Compared with the prior art, the above technical solutions provided by the embodiments of the present application have the following advantages: the method provided by the embodiments of the present application encodes the first value of the data to be encoded by using the threshold value pre-agreed by the transmitting end and the receiving end to obtain The second numerical value is then determined according to the character coding table, and the character coding result corresponding to the second numerical value is determined, and the data is coded using the idea of character coding. The steps are simple, and the calculation amount is small in the coding process. Moreover, the above process is completed in the smart contract of the blockchain system, and the whole life cycle of the above operation is recorded through the smart contract, which is convenient for subsequent verification.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. In other words, on the premise of no creative labor, other drawings can also be obtained from these drawings.

1 is a schematic flowchart of a data character encoding method according to an embodiment of the present application;

2 is a schematic flowchart of a data character decoding method provided by an embodiment of the present application;

3 is a schematic structural diagram of a data character encoding and decoding system according to an embodiment of the present application;

4 is a schematic structural diagram of a data character encoding device according to an embodiment of the present application;

5 is a schematic structural diagram of a data character decoding apparatus provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

In order to solve the technical problem that the use of symmetric or asymmetric encryption algorithms is cumbersome in the prior art, an embodiment of the present application provides a data character encoding method. As shown in FIG. 1 , a data character encoding method provided by an embodiment of the present application The character encoding method of the data is suitable for the blockchain system. The character encoding method of the data specifically includes the following steps:

Step 101, obtaining the data to be encoded uploaded by the sender;

The data can be sensitive data, such as the user's mobile phone number, ID number, home address and other private data; it can also be other data, such as the session content sent by the sender to the receiver.

Step 102, calling the smart contract of the blockchain system to convert the data into the first numerical value of the first system;

In order for data to be stored in a computer and transmitted through a communication network, the characters in the character set need to be encoded as an object in a specified set, such as a bit pattern, a sequence of natural numbers, an 8-bit group, or an electrical pulse. Common examples include: encoding the Latin alphabet into Morse code and ASCII. Among them, ASCII numbers letters, numbers, and other symbols, and uses 7-bit binary to represent this integer. Usually an extra bit of extension is used, totaling 8 bits, so that it can be stored in 1 byte.

During specific implementation, the first digit may be binary, and the data to be encoded is converted into the first binary value.

Step 103, encoding the first numerical value using a threshold value pre-agreed with the receiving end to obtain the second numerical value of the first system corresponding to the data;

Among them, the threshold value pre-agreed with the receiving end needs to be globally unique to prevent other clients receiving the character encoding result from interpreting it.

In a specific embodiment, the last session record of the sender and the receiver is stored in the blockchain system; before the first value is encoded by the threshold pre-agreed with the receiver, Also includes:

Invoke the smart contract to obtain the session identification number corresponding to the last session record of the sender and the receiver;

A threshold pre-agreed with the receiving end is determined according to the session identification number.

The session identification number of each session is globally unique. Therefore, determining the threshold agreed by the sender and the receiver through the session identification number can ensure the global uniqueness of the threshold and prevent other clients from interpreting the information after receiving it. At the same time, with the passage of time, the last session between the sender and the receiver is constantly changing, not fixed. It avoids using the same threshold for a long time and being imitated by people with intentions, which further ensures that the threshold is used for editing. Decoding security.

During specific implementation, at least one bit of target data is read from the session identification number, and the at least one bit of target data is used as a pre-agreed threshold value with the receiving end.

The session identification number is usually composed of a series of numbers and letters. When determining the threshold, a segment of the session identification number can be intercepted as the threshold. For example, the last 6 bits of target data of the session identification number can be read as a pre-agreed threshold. Of course, it can also be the target data of other bits.

When encoding the first value with the threshold pre-agreed with the receiving end, the smart contract can be called to convert the threshold into the first hexadecimal, obtain the threshold of the first hexadecimal, and calculate the first value and the The sum of the thresholds in the first system obtains the second value in the first system corresponding to the data.

For ease of understanding, here is an example, taking the first hexadecimal as binary as an example, the binary codes corresponding to "sensitive data" are: 110010101001111, 110000100011111, 110010101110000, 110001101101110, and the threshold is 5, then convert 5 to binary to 101; Then the threshold is added on the basis of the binary code, and the obtained second values are 10010101010100, 110000100100100, 110010101110101, and 110001101110011.

In addition, in addition to calculating the sum of the first numerical value and the threshold value of the first base for encoding to obtain the second numerical value of the first base, the difference or product of the first numerical value and the threshold value of the first base can also be calculated or Quotient to get the second value in the first base. Of course, other encoding methods can also be used. As long as the sender and receiver have agreed in advance.

In this embodiment of the present application, the entire process of encoding data by using the threshold value only involves conversion of the base system and simple addition, subtraction, multiplication or division calculation, which is very simple. However, for the receiving end, as long as there is no correct threshold, the correct decoding result cannot be obtained, and the specific content of the transmission cannot be known.

Step 104: Determine a character encoding result corresponding to the second numerical value according to a preset character encoding table.

Among them, the Character Encoding Form (CEF, Character Encoding Form), also known as the storage format (storage format), is to convert the non-negative integer value (ie abstract code point) of the coded character set into an integer value of limited bit length (called is a sequence of code units). This is a mapping to itself (null mapping) for fixed-length coding, but for variable-length coding, the mapping is more complicated, mapping some code bits to one symbol, and mapping other code bits to multiple A sequence of symbols. For example, using 16-bit long storage units to store digital information, each unit of the system can only directly represent values from 0 to 65535, but if multiple 16-bit units are used, larger integers can be represented. This is the role of CEF, which can map each code point in the Unicode (Unicode) code space range from 0 to 1.4 million to a single or multiple code values in the range of 0 to 65,5356. The simplest character encoding table is simply to choose a unit large enough to ensure that all values in the encoded character set can be directly encoded (one code point corresponds to one code value). This is reasonable for coded character sets that can be represented using octets (such as most traditional non-CJK (China-Japan-Korea-Vietnamese Unified Ideographic) character set codes), and for coded characters that can be represented using 16-bit Sets (like earlier versions of Unicode) are also reasonable enough. However, as the size of the coded character set increases (for example, the character set of Unicode today requires at least 21 bits to be fully represented), this direct representation becomes increasingly inefficient and difficult to adapt to existing computer systems larger code value. As a result, many systems using recent versions of Unicode either map Unicode codepoints to UTF-8 as variable-length sequences of 8-bit bytes, or to UTF-16 as variable-length sequences of 16-bit bytes.

During specific implementation, the smart contract is called to convert the second numerical value into a third numerical value of the second binary; from the character encoding table, the character encoding result corresponding to the third numerical value is read. Wherein, the second binary can be in decimal.

In order to facilitate understanding, continue to illustrate here, taking the second binary number as decimal as an example, in the example of step 103, the second numerical value is 10010101010100, 110000100100100, 110010101110101, 110001101110011, according to the description of step 104, convert the above second numerical value to decimal , the third value is 25940, 24868, 25973, 25459. If the character encoding table is UTF-8, look up the table to determine the content corresponding to each number, and the final character encoding result is the content corresponding to "UTF-8 25940|24868|25973|25459".

The string obtained above, that is, as a result of data encoding, is unreadable for some clients whose thresholds are not visible. However, for clients with visible thresholds, the specific content can be obtained by human or system reverse processing, and the calculation amount is small, which is very convenient. Moreover, the data itself needs to be converted into binary in the process of data transmission, and the embodiment of the present application follows the trend, the steps are simple, the calculation amount is small, and it is very flexible.

In the embodiment of the present application, the first value of the data to be encoded is encoded by using the threshold value pre-agreed by the sending end and the receiving end to obtain the second value, and then the character encoding result corresponding to the second value is determined according to the character encoding table, and the character encoding result corresponding to the second value is determined by using The idea of character encoding, encoding data, the steps are simple, and in the encoding process, the amount of calculation is small. In addition, the above process is completed in the smart contract of the blockchain system, and the whole life cycle of the above operation is recorded through the smart contract, which is convenient for subsequent verification.

In addition, as shown in FIG. 2 , an embodiment of the present application also provides a data character decoding method, which is applicable to a receiving end, and the method includes:

Step 201, according to the preset character encoding table, determine the second numerical value of the first system corresponding to the character encoding result;

In the specific implementation, the third numerical value of the second binary system corresponding to the character encoding result is determined according to the character encoding table, and the third numerical value of the second binary system is converted into the second numerical value of the first system;

Step 202, using the threshold value pre-agreed with the sender to decode the second numerical value to obtain the first numerical value of the first system;

Specifically, if the encoding method pre-agreed by both parties is to calculate the sum of the first numerical value and the threshold value of the first base to obtain the second numerical value of the first base corresponding to the data, then when decoding, the The threshold is converted into the first base to obtain the threshold of the first base; the difference between the second numerical value and the threshold of the first base is calculated to obtain the first numerical value of the first base .

Wherein, the first system may be binary, and the second binary may be decimal.

Step 203: Determine a decoding result based on the first value.

Step 203 is actually an inverse step of step 102, and the first binary value is used to reversely determine the characters in the character set, that is, the decoding result.

In this embodiment of the present application, the decoding process is actually an inverse process of the encoding process, and the amount of calculation is consistent with the encoding process. Therefore, the computational complexity of the decoding process is also relatively small.

In addition, as shown in FIG. 3 , an embodiment of the present application also provides a character encoding and decoding system for data, including: a blockchain system 301 and a receiving end 302;

The blockchain system 301 is used to obtain the data to be encoded uploaded by the sender; call the smart contract of the blockchain system to convert the data into the first numerical value of the first system; 302 encode the first numerical value with a pre-agreed threshold to obtain the second numerical value of the first hexadecimal corresponding to the data; according to a preset character encoding table, determine the character encoding result corresponding to the second numerical value; sending the character encoding result to the receiving end 302;

The receiving end 302 is configured to determine, according to a preset character encoding table, a second numerical value corresponding to the character encoding result in the first system; using a threshold pre-agreed with the transmitting end to decode the second numerical value, Obtain a first numerical value in a first system; determine a decoding result based on the first numerical value.

In the specific implementation, the blockchain system 301 can broadcast the character encoding result, and only the receiving end with the same threshold can correctly decode and read the data; even if other receiving ends receive the character encoding result, because there is no correct threshold, Also unable to interpret the data correctly.

Based on the same concept, the embodiment of the present application provides a data character encoding device, which is suitable for a blockchain system. For the specific implementation of the device, please refer to the description of the method embodiment section, and the repetition will not be repeated, as shown in Figure 4 As shown, the device mainly includes:

an acquisition module 401, configured to acquire the data to be encoded uploaded by the sender;

A conversion module 402, configured to call the smart contract of the blockchain system, and convert the data into a first numerical value in a first system;

an encoding module 403, configured to encode the first numerical value by using a threshold value pre-agreed with the receiving end to obtain the second numerical value of the first system corresponding to the data;

The first determining module 404 is configured to determine a character encoding result corresponding to the second numerical value according to a preset character encoding table.

In a specific embodiment, the encoding module 403 is configured to call the smart contract to convert the threshold into the first hexadecimal, obtain the threshold of the first hexadecimal, and calculate the first numerical value and the first numerical value The sum of the threshold values of the system is obtained to obtain the second numerical value of the first system corresponding to the data.

In a specific embodiment, the first determination module 404 is configured to call the smart contract to convert the second numerical value into a third binary numerical value; from the character encoding table, read and The character encoding result corresponding to the three values.

In a specific embodiment, the data character encoding device provided in the embodiment of the present application further includes: a contract module, configured to call the smart contract to obtain the last session record of the sender and the receiver The corresponding session identification number; the threshold value pre-agreed with the receiving end is determined according to the session identification number.

In a specific embodiment, the agreement module is configured to read at least one bit of target data from the session identification number, and use the at least one bit of target data as a threshold value pre-agreed with the receiving end.

Based on the same concept, an embodiment of the present application provides a data character decoding device, which is suitable for a receiving end. For the specific implementation of the device, please refer to the description in the method embodiment section, and the repetition will not be repeated, as shown in FIG. 5 . , the device mainly includes:

The second determination module 501 is configured to determine, according to a preset character encoding table, the second numerical value of the first system corresponding to the character encoding result;

a decoding module 502, configured to decode the second numerical value by using a threshold value pre-agreed with the transmitting end to obtain the first numerical value of the first system;

The third determining module 503 is configured to determine a decoding result based on the first value.

In a specific embodiment, the decoding module 502 is configured to convert the threshold value into a first system to obtain a first system threshold; calculate the difference between the second value and the first system threshold , to obtain the first numerical value of the first system.

Based on the same concept, the embodiment of the present application also provides an electronic device. As shown in FIG. 6 , the electronic device mainly includes: a processor 601, a memory 602, and a communication bus 603, wherein the processor 601 and the memory 602 communicate through The bus 603 performs communication with each other. The memory 602 stores a program that can be executed by the processor 601, and the processor 601 executes the program stored in the memory 602 to implement the following steps:

Obtain the data to be encoded uploaded by the sender;

Invoke the smart contract of the blockchain system to convert the data into the first numerical value of the first system; encode the first numerical value with the threshold pre-agreed with the receiving end, and obtain the first numerical value corresponding to the data The second numerical value in a hexadecimal system; according to the preset character encoding table, determine the character encoding result corresponding to the second numerical value.

The communication bus 603 mentioned in the above electronic device may be a Peripheral Component Interconnect (PCI for short) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA for short) bus or the like. The communication bus 603 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 6, but it does not mean that there is only one bus or one type of bus.

The memory 602 may include random access memory (Random Access Memory, RAM for short), and may also include non-volatile memory (non-volatile memory), such as at least one disk storage. Optionally, the memory may also be at least one storage device located away from the aforementioned processor 601 .

The above-mentioned processor 601 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc., and may also be a digital signal processor (Digital Signal Processing, DSP for short) , Application Specific Integrated Circuit (ASIC for short), Field-Programmable Gate Array (FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components.

In yet another embodiment of the present application, a computer-readable storage medium is also provided, where a computer program is stored in the computer-readable storage medium, and when the computer program is run on a computer, the computer is made to execute the above-mentioned embodiments. A character encoding method for data or a character decoding method for data is described.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, from a website site, computer, server, or data center via wired (e.g., Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, microwave, etc.) means to transmit to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes, etc.), optical media (eg, DVDs), or semiconductor media (eg, solid state drives), and the like.

It should be noted that, in this document, relational terms such as "first" and "second" etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is no such actual relationship or sequence between entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above descriptions are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims (10)

1. A method for character encoding of data, the method being adapted for use in a blockchain system, the method comprising:

acquiring data to be encoded uploaded by a sending end;

calling an intelligent contract of the block chain system, and converting the data into a first numerical value of a first system; encoding the first numerical value by utilizing a threshold value agreed with a receiving end in advance to obtain a second numerical value of a first system corresponding to the data; and determining a character coding result corresponding to the second numerical value according to a preset character coding table.

2. The method as claimed in claim 1, wherein the encoding the first value by using a threshold predetermined by a receiving end to obtain a second value of the first system corresponding to the data comprises:

and calling the intelligent contract to convert the threshold value into a first system to obtain a threshold value of the first system, and calculating the sum of the first numerical value and the threshold value of the first system to obtain a second numerical value of the first system corresponding to the data.

3. The method for character encoding of data according to claim 1, wherein the determining the character encoding result corresponding to the second numerical value according to a preset character encoding table comprises:

calling the intelligent contract to convert the second numerical value into a third numerical value of a second system;

and reading a character coding result corresponding to the third numerical value from the character coding table.

4. The method according to any one of claims 1 to 3, wherein the last session record of the transmitting end and the receiving end is stored in the blockchain system; before encoding the first value by using a threshold agreed in advance with a receiving end, the method further includes:

calling the intelligent contract to obtain a session identification number corresponding to the last session record of the sending end and the receiving end;

and determining a threshold value agreed with the receiving terminal in advance according to the session identification number.

5. The method for encoding characters of data according to claim 4, wherein the determining the threshold value agreed in advance with the receiving end according to the session identification number comprises:

and reading at least one bit of target data from the session identification number, and taking the at least one bit of target data as a threshold value agreed with the receiving terminal in advance.

6. A method for decoding characters of data, the method being adapted for a receiving end, the method comprising:

determining a second numerical value of the first system corresponding to the character coding result according to a preset character coding table;

decoding the second numerical value by using a threshold value agreed with a sending end in advance to obtain a first numerical value of a first system;

determining a decoding result based on the first value.

7. The method for decoding data characters according to claim 6, wherein the decoding the second value by using a threshold agreed in advance with a transmitting end to obtain a first value of a first system includes:

converting the threshold value into a first system to obtain a threshold value of the first system;

and calculating the difference value between the second numerical value and the threshold value of the first system to obtain the first numerical value of the first system.

8. A system for character encoding and decoding of data, comprising: a block chain system and a receiving end;

the block chain system is used for acquiring data to be coded uploaded by a sending end; calling an intelligent contract of the blockchain system to convert the data into a first numerical value of a first system; encoding the first numerical value by using a threshold value agreed in advance with a target receiving end to obtain a second numerical value of a first system corresponding to the data; determining a character coding result corresponding to the second numerical value according to a preset character coding table; sending the character coding result to the receiving end;

the receiving end is used for determining a second numerical value of the first system corresponding to the character coding result according to a preset character coding table; decoding the second numerical value by using a threshold value agreed with a sending end in advance to obtain a first numerical value of a first system; determining a decoding result based on the first value.

9. An electronic device, comprising: the system comprises a processor, a memory and a communication bus, wherein the processor and the memory are communicated with each other through the communication bus;

the memory for storing a computer program;

the processor is configured to execute the program stored in the memory to implement the method for encoding characters of data according to any one of claims 1 to 5 or the method for decoding characters of data according to claim 6 or 7.

10. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements a method for character encoding of data according to any one of claims 1 to 5 or a method for character decoding of data according to claim 6 or 7.

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