WO2021218088A1 - Communication data processing method and apparatus, and computer system and storage medium - Google Patents

Abstract

Disclosed are a communication data processing method and apparatus, and a computer system and a storage medium, which relate to encryption algorithms in the field of blockchains in computer technology, and are applied to a sending end and a receiving end. The method comprises: receiving an enabling signal; a sending end collecting, in real time, timestamp data corresponding to gyroscope data, and synchronously sending the timestamp data to a receiving end; receiving a key generation signal; the sending end and the receiving end respectively acquiring the finally collected gyroscope data as first data and second data, and acquiring initial text to be encrypted; and the sending end and the receiving end respectively processing the first data and the second data by using self-built algorithms to obtain a first key and a second key, wherein the self-built algorithms used by the sending end and the receiving end are the same, the self-built algorithms may be stored in a blockchain node, the sending end and the receiving end respectively perform encryption and decryption, and thus no key needs to be transmitted during data transmission, which solves the problem, in the prior art, of data leakage caused after a key is intercepted in a communication data transmission process.

Description

Communication data processing method, device, computer system and storage medium

This application is required to be submitted to the Chinese Patent Office on April 30, 2020, the application number is CN 202010361365.2, the priority of the Chinese patent application with the title of "a communication data processing method, device, computer system and storage medium", the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of computer technology, and in particular to a communication data encryption method, device, computer system and readable storage medium.

Background technique

With the continuous development of science and technology, information security has increasingly become a concern of people. Information security can be roughly divided into storage security, use security, and transmission security. Transmission security is the most directly threatened one, because in the process of information transmission In, both parties of information exchange are open, and they are very vulnerable to data leakage and data tampering.

The inventor found that in order to improve the security of information transmission, an asymmetric encryption algorithm or a symmetric encryption algorithm is used to encrypt the transmitted data in the existing information transmission process. Among them, the asymmetric encryption algorithm requires two keys, and two keys are used for encryption and decryption. The asymmetric encryption algorithm has higher security but more complex decryption, and is not suitable for frequent processing of data with too large length; the symmetric encryption algorithm uses the same key for encryption and decryption, and the decryption speed is faster when the symmetric encryption algorithm is used for encryption. efficient.

However, because the symmetric encryption algorithm uses the same key for encryption and decryption, there is a high risk of interception in the transmission and distribution of the key. Cracking, transmission data will be leaked.

Application content

The purpose of this application is to provide a communication data processing method, device, computer system, and storage medium, which are used to solve the problem of data leakage caused by the interception of the key in the communication data transmission process in the prior art.

In order to achieve the above objective, this application provides a communication data processing method applied to the sending end, including:

After receiving the start signal, collect the gyroscope data of the mobile terminal in real time and synchronously send it to the receiving end; wherein, each of the gyroscope data corresponds to a time stamp data;

Receiving a key generation signal, and obtaining the last collected gyroscope data based on the time stamp data as the first data;

Performing first processing on the first data by using a self-built algorithm to obtain a first key;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm.

Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.

This application also provides a communication data processing method, which is applied to the receiving end, and includes:

Receiving gyroscope data synchronized from the sending end, where each gyroscope data corresponds to a time stamp data;

Receiving a key generation signal, and obtaining the last received gyroscope data based on the time stamp data as the second data;

Performing second processing on the second data by using a self-built algorithm to obtain a second key;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

Receive the encrypted text sent by the sender;

The encrypted text is decrypted by using a symmetric encryption algorithm based on the second key to obtain the initial text.

In order to achieve the above objective, this application also provides a device including a sending end server and a receiving end server communicating with the sending end server:

The sending end server is used to collect the gyroscope data of the mobile terminal in real time after receiving the start signal and synchronously send it to the receiving end; obtain the last collected gyroscope data as the first data; use a self-built algorithm to compare the first data Perform the first processing to obtain the first key; wherein the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm; obtain the initial text to be encrypted, and compare the initial text based on the first key Encrypt by using a symmetric encryption algorithm to obtain an encrypted text, and send the encrypted text to the receiving end;

The receiving end server is used to receive the gyroscope data synchronized from the transmitting end and receive the key generation signal; obtain the last received gyroscope data as the second data; use a self-built algorithm to perform the second data on the second data Process to obtain a second key, where the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm; the encrypted text sent by the sender is received, and the encrypted text is symmetric based on the second key The encryption algorithm decrypts and obtains the initial text;

Wherein, the self-built algorithms executed by the first processing unit and the second processing unit are consistent.

In order to achieve the above object, the present application also provides a computer system, which includes at least one computer device, each computer device includes a memory. A processor and computer readable instructions stored in the memory and executable on the processor, the at least When a processor of a computer device executes the computer-readable instructions, the following steps of the above method are jointly implemented:

Including being applied to the sending end, after receiving the start signal, collecting the gyroscope data of the mobile terminal in real time and sending it to the receiving end synchronously; wherein, each of the gyroscope data corresponds to a time stamp data;

Receiving a key generation signal, and obtaining the last collected gyroscope data based on the time stamp data as the first data;

Performing first processing on the first data by using a self-built algorithm to obtain a first key;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm.

Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.

It also includes applications to the receiving end, including:

Receiving gyroscope data synchronized from the sending end, where each gyroscope data corresponds to a time stamp data;

Receiving a key generation signal, and obtaining the last received gyroscope data based on the time stamp data as the second data;

Performing second processing on the second data by using a self-built algorithm to obtain a second key;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

Receive the encrypted text sent by the sender;

The encrypted text is decrypted by using a symmetric encryption algorithm based on the second key to obtain the initial text.

In order to achieve the above objective, the present application also provides a computer storage medium, which includes a plurality of storage media, each storage medium stores computer readable instructions, and the computer readable instructions stored in the multiple storage media are processed by a processor. The following steps of the above method are jointly implemented during execution:

Including being applied to the sending end, after receiving the start signal, collecting the gyroscope data of the mobile terminal in real time and sending it to the receiving end synchronously; wherein, each of the gyroscope data corresponds to a time stamp data;

Receiving a key generation signal, and obtaining the last collected gyroscope data based on the time stamp data as the first data;

Performing first processing on the first data by using a self-built algorithm to obtain a first key;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm.

Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.

It also includes applications to the receiving end, including:

Receiving gyroscope data synchronized from the sending end, where each gyroscope data corresponds to a time stamp data;

Receiving a key generation signal, and obtaining the last received gyroscope data based on the time stamp data as the second data;

Performing second processing on the second data by using a self-built algorithm to obtain a second key;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

Receive the encrypted text sent by the sender;

The encrypted text is decrypted by using a symmetric encryption algorithm based on the second key to obtain the initial text.

The communication data processing method, device, computer system and storage medium provided in this application use the transmitting end to collect the gyroscope data of the mobile terminal in real time and send it to the receiving end synchronously. Both the transmitting end and the receiving end obtain the respective keys generated based on the gyroscope data , Only the gyroscope data and encrypted text collected in real time are transmitted through the network, and the key generated by each is not transmitted through the network, which avoids the high risk of interception in the transmission and distribution of the key, and improves the security of data transmission.

Description of the drawings

FIG. 1 is a flowchart of Embodiment 1 of a communication data processing method described in this application;

2 is a flowchart of the first embodiment of the communication data processing method of this application before the first processing is performed on the first data to obtain the key;

FIG. 3 is a flowchart of performing consistency check on the first data and the second data in the first embodiment of a communication data processing method of this application;

FIG. 4 is a flowchart of obtaining other gyroscope data to replace the first data in Embodiment 1 of a communication data processing method of this application, and performing re-verification;

FIG. 5 is a flowchart of Embodiment 2 of a communication data processing method described in this application;

6 is a flowchart of Embodiment 3 of a communication data processing method described in this application;

FIG. 7 is a schematic diagram of program modules of Embodiment 4 of a communication data processing apparatus according to this application;

FIG. 8 is a schematic diagram of the hardware structure of the computer device in the fifth embodiment of the computer system of this application.

Embodiments of the present invention

In order to make the purpose, technical solutions, and advantages of this application clearer and clearer, the following further describes the application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and are not used to limit the application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

This application provides a communication data processing method, device, computer system, and readable storage medium method based on a sending end server and a receiving end server communicating with the sending end server, which are suitable for the field of computer technology. In this application, the gyroscope data of the mobile terminal is collected in real time by the collecting unit in the sending end server and sent to the receiving end server synchronously, and the first obtaining unit in the sending end server and the second obtaining unit in the receiving end server are used to obtain the same The first processing unit in the sending end server and the second processing unit in the receiving end server respectively process the gyroscope data to obtain the key. Based on the key, the encryption unit in the sending end server performs the initial text Encrypt to obtain the encrypted text and send it to the receiving server. After receiving the encrypted text, the receiving server decrypts based on the key to obtain the initial text. In this process, only the transmission of encrypted text and the transmission of gyroscope data are required. The key generation is performed on the sending end server and the receiving end server respectively, and the key itself is not transmitted through the network, which solves the problem of data leakage caused by the interception of the key in the communication data transmission process in the prior art.

The key generation in this application depends on the collected gyroscope data of the mobile terminal, and the collected key is based on the last set of gyroscope data before the key generation signal is received, that is, the gyroscope that generates the key depends on the user trigger The process of key generation signal enhances the dynamic nature of the key, that is, the single-use key cannot be used and decrypted successfully after the next login. Due to real-time collection, theoretically, a large number of users will not generate the same key. , To further improve safety.

Example 1

Referring to Fig. 1, this embodiment provides a communication data processing method, which is applied to the sending end server, as shown in Figs. 1 and 6, including the following steps:

S11: After receiving the start signal, collect the gyroscope data of the mobile terminal in real time and synchronously send it to the receiving end; wherein, each of the gyroscope data corresponds to a time stamp data;

Specifically, in this embodiment, the sending end is the mobile device end of the first user, the receiving end is the mobile device end or computer end of the second user, and the collected data is the gyroscope data and time stamp data of the user's mobile terminal. .

The start signal can be triggered when the user uses the APP for collecting terminal data. After the user logs in to the APP, the start signal is triggered. It can be realized by monitoring technical means. In this embodiment, the real-time collection is collected at a preset time interval. , The preset time interval is set to one minute, or it can be set to other time periods. The preset time interval cannot be too long or too short. If the interval is too short, too much terminal data will be collected, which will cause delays in both the sender and the receiver. Large pressure and too little terminal data collected at too long intervals will affect the security of subsequent key generation.

Collect gyroscope data and corresponding time stamp data. The gyroscope data is used to generate the key described later. The time stamp data is used to identify the gyroscope data. The collected gyroscope data are recorded in sequence according to the order of collection. After the gyroscope data is collected The data can be preprocessed, for example, the gyroscope data and the time stamp data are serialized, that is, the gyroscope data is converted into a specific format for transmission on the network.

S12: Receive a key generation signal, and obtain the last collected gyroscope data based on the time stamp data as the first data;

Specifically, the key generation signal can be triggered by the sending end or the receiving end, and sent to the receiving end and the sending end at the same time. The last collected gyroscope data refers to the data before the sending end receives the key generation signal. The gyroscope data and time stamp data acquired in the last collection set can be selected based on the time stamp sequence, that is, the gyroscope data corresponding to the latest time represented by the time stamp. More specifically, the gyroscope data can be the user exiting the APP The last set of data collected can also be a set of data uploaded during the start of the APP or halfway.

Before performing the first processing on the first data to obtain the key, refer to FIG. 2, including the following:

S121: Send an information request signal to the receiving end, and obtain the gyroscope data last received by the receiving end as the second data.

S122: Perform consistency check on the first data and the second data.

In this embodiment, the last recorded gyroscope data is obtained at the sending end and the receiving end through S12 and S121. Since the sending end collects terminal data each time it is sent to the receiving end synchronously, theoretically the receiving end and the sending end save the same Gyroscope data and timestamp data. The key is generated based on gyroscope data. In order to ensure that the subsequent sender encrypts the initial text and transmits it to the receiver to be decrypted by the receiver, it is necessary to ensure that the receiver and sender use the generated key Therefore, in order to ensure the consistency of the obtained key, before the following steps, it also includes the consistency check of the gyroscope data used by the sender and the receiver to generate the key. The specific verification process includes the following steps :

Specifically, the consistency check on the first data and the second data, referring to FIG. 3, includes the following steps:

S1221: Obtain corresponding first summary values and second summary values based on the first data and the second data, respectively;

In this embodiment, the MD5 algorithm is used to obtain the digest value.

Specifically, the MD5 algorithm is an irreversible digest algorithm that is common in the prior art, and is used to verify the consistency of two data. In this embodiment, it is used to verify whether the target data respectively obtained by the sending end and the receiving end are consistent. The MD5 algorithm based on timestamp is used to transform the target data and its corresponding timestamp data into a 128-bit, 32-character (hexadecimal identification) output through a hash algorithm.

S1222: Compare the first summary value and the second summary value;

In this embodiment, the first summary value and the second summary value can be compared at the sender, or can be directly compared by handshake. The handshake comparison means that the sender and the receiver need to establish a TCP connection to achieve the first summary. The comparison between the value and the second summary value.

S1223: If they are consistent, the first data passes the verification;

S1224: If they are inconsistent, obtain other gyroscope data to replace the first data, and perform verification again.

Specifically, the acquisition of other gyroscope data replaces the first data, and re-verification is performed. Refer to FIG. 4, including the following:

S1224-1: Obtain corresponding time stamp data based on the first data;

S1224-2: Obtain the second time stamp data recorded once before the first time stamp;

Specifically, the time stamp data is a complete, verifiable data that can indicate that a piece of data has existed before a certain time. It is usually a sequence of characters that uniquely identifies the time at a certain moment, and corresponds to the data based on the gyroscope. The time stamp data of the gyro can know the time corresponding to the data collection of the gyroscope, that is, the time stamp data can be used to identify the data of each gyroscope, arranged in chronological order, and then the time stamp data collected in sequence can be obtained. The second data consistency verification fails, that is, the first data is inconsistent with the second data. The greatest possibility is that the first data set is more than the second data set. Therefore, the historical collection of the sender server is used to obtain the gyroscope data to replace the current one. For the first data, the process can be realized by using time stamp data.

S1224-3: Acquire corresponding gyroscope data based on the second time stamp data;

S1224-4: Use the gyroscope data corresponding to the second time stamp data to replace the current first data to obtain the replaced first data;

S1224-5: Use the replaced first data and the second data to perform verification.

In the above embodiment, theoretically the last set of data recorded by the sending end server and the receiving end server is used as the basis for generating. When the last set of data recorded by the sending end server and the receiving end server are inconsistent, the high probability is due to the sending end server. After collecting the gyroscope data but not sending it to the receiving server, the sending server can use the previous data of the last set of data to overcome the inconsistency of the gyroscope data obtained by the sender and the receiving end, and ensure the subsequent sending server The consistency of the generated keys with the receiving server.

S13: Perform first processing on the first data to obtain a first key;

The performing the first processing on the first data includes the following:

Processing the first data by using a self-built algorithm;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm.

In the above embodiments, self-built algorithms include but are not limited to serialization, disorder, character replacement, digest algorithms, etc. It should be noted that the sending end server and the receiving end server use the same self-built algorithm, which can be based on the use environment or The corresponding setting of the preset text type can also be randomly generated. It is only necessary to keep the sending end server and the receiving end server consistent, as an example and not a limitation: in this embodiment, a serialization function is used to convert the gyroscope data into Binary string, then use every 8 bytes in reverse order, deserialize, and finally perform BASE64 encoding to obtain the key. Specifically, the self-built algorithm is written in native C code in the APP to prevent it from being simple java Decompile to obtain the content of the algorithm.

In this embodiment, the generation of the first key at the sending end depends on the collected gyroscope data of the mobile terminal, and the collection of gyroscope data starts with the start signal and stops with the key generation signal. The key obtained each time can only be Once used, due to real-time collection, theoretically there will not be a large number of users generating the same secret key, which improves the security of use.

S14: Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.

Specifically, the initial text is encrypted using an AES encryption algorithm (symmetric encryption algorithm). The AES encryption algorithm includes key expansion (KeyExpansion), initial round (Initial Round), repeat round (Rounds), final round (Final Round), where each round in the repeated round includes: byte substitution (SubBytes), row shift (ShiftRows), column mixing (MixColumns), round key addition (AddRoundKey), and the final round without column mixing (MixColumns) , The following decryption process reverses the encryption process.

More specifically, the key extension extends the 16-byte key to obtain the extended key. Before the first round key addition, the 16-byte target data must be preprocessed to form a The 4*4 matrix is then XORed with the extended key, and each round of key addition is XORed with the corresponding extended key. The byte replacement is based on the processed matrix through a preset After the S-box mapping is completed, the reverse byte replacement in the decryption process of the receiving end server in the following embodiment 2 is completed by the inverse mapping of the S-box, and the row shift is based on the above matrix for the first row unchanged, and the second row cyclically Shift 1 byte to the left, cyclically shift the 3rd row to the left by 2 bytes, and cyclically shift the 4th row to the left by 3 bytes. The following decryption process is reversed, and the column mixing multiplies the processed matrix to the left by a fixed matrix, In the following decryption process, the column mix uses the processed matrix to be left multiplied by the inverse matrix of the fixed matrix.

In this embodiment, the first key directly generated by the receiving end, the generated first key itself is not transmitted through the network, and is generated for the gyroscope data of the sending end, which avoids the transmission and distribution of the first key. The risk of being intercepted improves the security of data transmission.

In this embodiment, symmetric encryption is used to protect the transmitted data, the decryption performance consumption of the receiving end is relatively reduced, the overall encryption of longer data can be supported, and the data transmission efficiency is improved.

Example 2

This embodiment provides a communication data processing method, which is applied to a receiving end server, as shown in FIG. 5 and FIG. 6, and includes the following steps:

S21: Receive gyroscope data synchronized from the sending end server, where each gyroscope data corresponds to a time stamp data;

S22: The receiving end server receives the key generation signal, and obtains the last received gyroscope data based on the time stamp data as the second data;

In this embodiment, the sending end server collects gyroscope data, and then synchronously sends the gyroscope data to the receiving end server. In theory, the receiving end server and the sending end server record all the same gyroscope data, so in order to obtain the first The accuracy of the second key is based on the last received gyroscope data to reduce the confusion caused by multiple gyroscope data and affect the accuracy of the second key generated subsequently.

In this embodiment, the generation of the second key depends on the received gyroscope data and is synchronized with the sender, that is, the generation of the second key does not need to be transmitted through the network, which avoids the transmission and distribution of the second key. The high risk of interception improves the security of data transmission, and the subsequent decryption can be performed directly based on the second key.

S23: Perform second processing on the second data to obtain a second key;

Specifically, processing the second data using a self-built algorithm to process the second data;

Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm.

In the above embodiment, the self-built algorithm includes but is not limited to serialization, disorder, character replacement, digest algorithm, etc. It should be noted that the receiving end server and the sending end server in the first embodiment above use the same self-built algorithm. It can be set according to the use environment or the preset text type, or it can be randomly generated. You only need to keep the sending end server and the receiving end server consistent to ensure that the second key is the same as the first key generated by the sending end server Consistent, complete the subsequent decryption of the encrypted text.

In an embodiment, the self-built algorithm can be stored on the blockchain network, and the data information can be shared between different platforms through the storage of the blockchain, and the data can also be prevented from being tampered with.

Blockchain is a new application mode of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain, essentially a decentralized database, is a series of data blocks associated with cryptographic methods. Each data block contains a batch of network transaction information for verification. The validity of the information (anti-counterfeiting) and the generation of the next block. The blockchain can include the underlying platform of the blockchain, the platform product service layer, and the application service layer.

Before performing the second processing on the second data to obtain the second key, it includes the following:

After receiving the information request signal sent by the sending end, the second data is sent to the sending end.

S24: Receive the encrypted text sent by the sender;

S25: Use a symmetric encryption algorithm to decrypt the encrypted text based on the second key to obtain an initial text.

In this embodiment, the AES encryption algorithm is used for decryption, and the reverse processing of the encryption process in the receiving server is used as an example and not a limitation. For example, the reverse byte is replaced by the reverse mapping of the S box, and the row shift is based on the encryption process. The inverse operation of the middle row displacement process. In the encryption process, the column mixing is to multiply the processed matrix by a fixed matrix to the left. In the decryption process, the column mixing uses the processed matrix to multiply the inverse of the fixed matrix to the left to obtain The original text after decryption.

Example 3

This embodiment provides a communication data processing method. Referring to FIG. 6, the method includes the following:

S31: Receive the start signal, and the sending end collects gyroscope data in real time, each of the gyroscope data corresponds to a time stamp data, and synchronously sends the gyroscope data and the corresponding time stamp data to the receiving end.

The sending end is the mobile device end of the first user, the receiving end is the mobile device end or the computer end of the second user, and the collected data is the gyroscope data and time stamp data of the user's mobile terminal. The time stamp data is used to identify the gyroscope data, and the collected gyroscope data are recorded in sequence according to the order of collection.

S32: receiving the key generation signal, the sending end and the receiving end respectively obtain the last collected gyroscope data as the first data and the second data based on the time stamp data, and obtain the initial text to be encrypted;

S33: The sending end and the receiving end respectively use self-built algorithms to process the first data and the second data to obtain the first key and the second key;

Before processing the first data and the second data, a consistency check of the first data and the second data is performed to ensure that the subsequent generation of the first key and the second key are consistent.

Specifically, the consistency check can be performed by using the receiving end to send the second data to the sending end, or the sending end can be used to send the first data to the receiving end for consistency checking, and the sending end and the receiving end can also be used. Handshake comparison. Handshake comparison is because most mobile terminals adopt the TCP/IP protocol. The establishment of a TCP connection requires multiple handshake, that is, the client sends a TCP trial connection to the server, a handshake; the server agrees to establish the TCP connection and returns Confirm the information, two handshake; the client then confirms the message to the server, three handshake, to achieve the establishment of the TCP connection. Therefore, the handshake comparison here mainly means that the first data is on the sender and the second data is on the receiver. The sender and the receiver need to establish a TCP connection to achieve the comparison of the first data and the second data.

It should be noted that the same self-built algorithm is used to process the first data and the second data, where the self-built algorithm includes serialization, disorder, character replacement, and digest algorithms.

Self-built algorithms include but are not limited to serialization, disorder, character replacement, digest algorithms, etc. It should be noted that the sender server and the receiver server use the same self-built algorithm to ensure that the same key is obtained, as an example Without limitation, in this embodiment, a serialization function is used to convert the gyroscope data into a binary string, and then every 8 bytes are used in reverse order, deserialization, and finally BASE64 encoding is performed to obtain the key.

S34: The sending end encrypts the initial text based on the first key, obtains the encrypted text, and sends the encrypted text to the receiving end;

S35: After receiving the encrypted text, the receiving end uses the second key to decrypt the encrypted text to obtain the initial text.

In this embodiment, a symmetric encryption algorithm (AES encryption algorithm) is used to encrypt or decrypt the initial text. In the symmetric encryption algorithm, the sender processes the initial text and the encryption key together with the encryption algorithm to make it complicated The encrypted ciphertext is sent out. After receiving the ciphertext, if the receiver wants to obtain the initial text, it needs to decrypt the ciphertext with the used encryption key and the inverse algorithm of the same algorithm to restore it to the original text. In the symmetric encryption algorithm, there is only one key used. Both the sender and the receiver use this key to encrypt and decrypt data. The decryption process reverses the encryption process.

Specifically, in the encryption process, the key is expanded first, that is, the 16-byte key is expanded to obtain the expanded key. Before the round key addition is performed for the first time, the 16-byte initial text must be preprocessed. Processing, compose it into a 4*4 matrix, and then perform XOR operation with the extended key. After each round of key addition, XOR is performed with the corresponding extended key. The byte replacement is based on the processed key. The matrix of is completed by the preset S-box mapping. In the following decryption process, the reverse byte replacement is completed by the inverse mapping of the S-box. The row shift is based on the above matrix for the first row unchanged, and the second row rotates to the left. Shift 1 byte, the third row circulates to the left by 2 bytes, the fourth row circulates to the left by 3 bytes, the following decryption process is reversed, column mixing multiplies the processed matrix to the left by a fixed matrix, down In the decryption process, the column mixture adopts the processed matrix to be left multiplied by the inverse matrix of the fixed matrix.

The key generated in this application is not transmitted over the network. It is generated by the sender and receiver separately based on the synchronized gyroscope data, avoiding the high risk of interception in the transmission and distribution of the key, and improving the data transmission. safety.

The key generation in this application relies on the collected gyroscope data of the mobile terminal. Based on the last set of gyroscope data before the key generation and collection, theoretically, there will be no large batch of users generating the same secret key, which is further improved. Security during data transmission.

Example 4

Please refer to FIG. 5, a communication data processing apparatus of this embodiment, referring to FIG. 7, includes a sending end server 71 and a receiving end server 72;

The sending end server 71 is configured to collect the gyroscope data of the mobile terminal in real time after receiving the start signal and send it to the receiving end synchronously; obtain the last collected gyroscope data as the first data; The data undergoes the first processing to obtain the first key; wherein the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm; the initial text to be encrypted is obtained, and the initial text is obtained based on the first key. The text is encrypted using a symmetric encryption algorithm to obtain an encrypted text, and send the encrypted text to the receiving end;

Specifically, the sending end server 71 includes the following:

The collecting unit 711 is configured to collect the gyroscope data of the mobile terminal in real time after receiving the start signal and send it to the receiving end synchronously;

The first obtaining unit 712 is configured to obtain the last collected gyroscope data as the first data;

The first processing unit 713 is configured to perform first processing on the first data to obtain a first key;

The verification unit 714 is configured to perform consistency verification on the first data and the second data;

The encryption unit 715 is configured to obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end;

The receiving end server 72 is configured to receive the gyroscope data synchronized from the transmitting end and receive the key generation signal; obtain the last received gyroscope data as the second data; use a self-built algorithm to perform the second data on the second data. The second process is to obtain the second key, where the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm; the encrypted text sent by the sender is received, and the encrypted text is used based on the second key The symmetric encryption algorithm decrypts and obtains the initial text;

Wherein, the self-built algorithms executed by the first processing unit and the second processing unit are consistent.

Specifically, the receiving end server 72 includes the following:

The receiving unit 721 is configured to receive gyroscope data synchronized from the transmitting end, and receive a key generation signal;

The second acquiring unit 722 is configured to acquire the last received gyroscope data as the second data;

The second processing unit 723 is configured to perform second processing on the second data to obtain a second key,

Wherein, the algorithms executed by the first processing unit and the second processing unit are consistent, and the finally obtained second key is consistent with the first key;

The decryption unit 724 is configured to receive the encrypted text sent by the sender, and decrypt the encrypted text using a symmetric encryption algorithm based on the second key to obtain the initial text.

This technical solution is based on the information encryption and decryption technology in cryptographic technology, and uses the acquisition unit to collect the gyroscope data of the mobile terminal in real time and send it to the receiving end server synchronously. After the receiving end server receives the gyroscope data sent by the sending end server, the sending end server and The receiving end server uses the first acquisition unit and the second acquisition unit to acquire the last gyroscope data as the first data and the second data respectively; and then uses the verification unit to verify whether the first data and the second data are consistent. After the verification is completed Then the same algorithm is used on the sending end server and the receiving end server to generate the first key and the second key based on the first data and the second data respectively. Based on the adopted gyroscope data and processing algorithms are consistent, the obtained first One key is consistent with the second key, and then the sending end server uses the first key to encrypt the initial text and transmits the encrypted text to the receiving end server, and the receiving end server uses the second key to decrypt the encrypted text to obtain the initial text In the above process, only the gyroscope data and encrypted text collected in real time are transmitted through the network. The first key and the second key generated are not transmitted through the network. They are generated separately for the sender and receiver based on the synchronized gyroscope data. Therefore, the transmission and distribution of the key has a higher risk of being intercepted, and the security of data transmission is improved.

In this technical solution, the gyroscope data collected by the sending end server through the acquisition unit starts with the collected key with the start signal, stops with the key generation signal, and stops collecting the last set of gyroscope data before the acquisition. The gyroscope that the end server generates the second key and the first key depends on the process of the user logging in or logging out of the APP, which enhances the dynamics of the key, that is, the single-use key cannot be used and decrypted after the next login Success, due to real-time collection, theoretically will not produce a large number of users to produce the same secret key, and further improve the security.

Example 5

To achieve the above objective, the present application also provides a computer system. As shown in FIG. 8, the computer system includes at least one computer device 8. The components of the communication data processing apparatus of the fourth embodiment can be dispersed in different computer devices. Among them, the computer equipment can be a smart phone, a tablet computer, a notebook computer, a desktop computer, a rack server, a blade server, a tower server, or a cabinet server (including an independent server, or a combination of multiple servers) that executes the program. Server cluster) and so on. The computer device in this embodiment at least includes but is not limited to: a memory 81 and a processor 82 that can be communicatively connected to each other through a system bus, as shown in FIG. 8. It should be pointed out that FIG. 8 only shows a computer device with components, but it should be understood that it is not required to implement all the illustrated components, and more or fewer components may be implemented instead.

In this embodiment, the memory 81 (ie, readable storage medium) includes flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), Read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disks, optical disks, etc. In some embodiments, the memory 81 may be an internal storage unit of a computer device, such as a hard disk or memory of the computer device. In other embodiments, the memory 81 may also be an external storage device of the computer device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), and a secure digital (Secure Digital, SD) equipped on the computer device. Flash memory card Card) and so on. Of course, the memory 81 may also include both an internal storage unit of the computer device and an external storage device thereof. In this embodiment, the memory 81 is generally used to store the operating system and various application software installed in the computer equipment, such as the program code of the communication data processing method of the first embodiment, the second embodiment, and the third embodiment, and the first embodiment. Example two, the initial text, encrypted text, etc. of the third example. In addition, the memory 81 can also be used to temporarily store various types of data that have been output or will be output.

The processor 82 may be a central processing unit (Central Processing Unit) in some embodiments. Processing Unit, CPU), controller, microcontroller, microprocessor, or other data processing chip. The processor 82 is generally used to control the overall operation of the computer equipment. In this embodiment, the processor 82 is used to run the program code or process data stored in the memory 81, for example, to run a data storage and query device, so as to implement a communication data processing method of the first embodiment.

Example 6

To achieve the above objective, this application also provides a computer-readable storage system, which includes multiple storage media, such as flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memory, etc.), random access memory (RAM ), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic storage, magnetic disks, optical disks, servers, App applications Shopping malls, etc., have computer-readable instructions stored thereon, and the programs are executed by the processor 82 to realize corresponding functions. The computer-readable storage medium of this embodiment is used to store the data storage and query device, and when executed by the processor 82, it implements the communication data processing method of the first embodiment, the second embodiment, or the third embodiment. The computer-readable storage medium may be non-volatile or volatile.

The serial numbers of the foregoing embodiments of the present application are for description only, and do not represent the superiority or inferiority of the embodiments.

Through the description of the above implementation manners, those skilled in the art can clearly understand that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。

The above are only the preferred embodiments of the application, and do not limit the scope of the patent for this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of the application, or directly or indirectly applied to other related technical fields , The same reason is included in the scope of patent protection of this application.

Claims (20)

1. A communication data processing method, which is applied to the sending end, includes:

   After receiving the start signal, collect the gyroscope data of the mobile terminal in real time and synchronously send it to the receiving end; wherein, each of the gyroscope data corresponds to a time stamp data;

   Receiving a key generation signal, and obtaining the last collected gyroscope data based on the time stamp data as the first data;

   Performing first processing on the first data by using a self-built algorithm to obtain a first key;

   Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

   Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.
2. The communication data processing method according to claim 1, wherein, before performing the first processing on the first data to obtain the key, the method includes the following:

   Send an information request signal to the receiving end, and obtain the gyroscope data last received by the receiving end as the second data;

   A consistency check is performed on the first data and the second data.
3. The communication data processing method according to claim 2, wherein: said checking the consistency of said first data and second data comprises the following:

   Respectively obtaining corresponding first summary values and second summary values based on the first data and the second data;

   Comparing the first summary value and the second summary value;

   If they are consistent, the first data passes the verification;

   If they are inconsistent, obtain other gyroscope data to replace the first data and/or second data, and perform re-verification.
4. The communication data processing method according to claim 3, wherein: the obtaining other gyroscope data to replace the first data and/or the second data and performing re-verification includes the following:

   Acquiring corresponding time stamp data based on the first data;

   Acquiring the second time stamp data recorded once before the first time stamp;

   Acquiring corresponding gyroscope data based on the second time stamp data;

   Replacing the current first data with the gyroscope data corresponding to the second time stamp data to obtain the replaced first data;

   The first data after the replacement and the second data are used for verification.
5. A communication data processing method, which is applied to the receiving end, includes:

   Receiving gyroscope data synchronized from the sending end, where each gyroscope data corresponds to a time stamp data;

   Receiving a key generation signal, and obtaining the last received gyroscope data based on the time stamp data as the second data;

   Performing second processing on the second data by using a self-built algorithm to obtain a second key;

   Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

   Receive the encrypted text sent by the sender;

   The encrypted text is decrypted by using a symmetric encryption algorithm based on the second key to obtain the initial text.
6. A communication data processing method according to claim 5, wherein:

   Before performing the second processing on the second data to obtain the second key, it includes the following:

   After receiving the information request signal sent by the sending end, the second data is sent to the sending end.
7. A communication data processing method, applied to the sending end and the receiving end, including:

   Receiving the start signal, the sending end collects gyroscope data in real time, and synchronously sending the gyroscope data and the corresponding time stamp data to the receiving end, wherein each of the gyroscope data corresponds to a time stamp data;

   Receiving the key generation signal, the sending end and the receiving end respectively obtain the last collected gyroscope data based on the time stamp data as the first data and the second data, and obtain the initial text to be encrypted;

   The sending end and the receiving end respectively use self-built algorithms to process the first data and the second data to obtain the first key and the second key;

   Among them, the self-built algorithm adopted by the sending end and the receiving end are the same;

   The sending end encrypts the initial text based on the first key, obtains the encrypted text, and sends the encrypted text to the receiving end;

   After receiving the encrypted text, the receiving end uses the second key to decrypt the encrypted text to obtain the initial text.
8. A communication data processing device, including: a sending end server and a receiving end server communicating with the sending end server;

   The sending end server is used to collect the gyroscope data of the mobile terminal in real time after receiving the start signal and synchronously send it to the receiving end; obtain the last collected gyroscope data as the first data; use a self-built algorithm to compare the first data Perform the first processing to obtain the first key; wherein the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm; obtain the initial text to be encrypted, and compare the initial text based on the first key Encrypt by using a symmetric encryption algorithm to obtain an encrypted text, and send the encrypted text to the receiving end;

   The receiving end server is used to receive the gyroscope data synchronized from the transmitting end and receive the key generation signal; obtain the last received gyroscope data as the second data; use a self-built algorithm to perform the second data on the second data Process to obtain a second key, where the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm; the encrypted text sent by the sender is received, and the encrypted text is symmetric based on the second key The encryption algorithm decrypts and obtains the initial text;

   Wherein, the self-built algorithms executed by the first processing unit and the second processing unit are consistent.
9. A computer system includes at least one computer device, each computer device includes a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor, wherein the processor of the at least one computer device executes The computer-readable instructions collectively implement the steps of the method, including being applied to the sending end, including the following steps:

   After receiving the start signal, collect the gyroscope data of the mobile terminal in real time and synchronously send it to the receiving end; wherein, each of the gyroscope data corresponds to a time stamp data;

   Receiving a key generation signal, and obtaining the last collected gyroscope data based on the time stamp data as the first data;

   Performing first processing on the first data by using a self-built algorithm to obtain a first key;

   Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

   Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.
10. The computer system according to claim 9, wherein, before performing the first processing on the first data to obtain the key, the method includes the following:

    Send an information request signal to the receiving end, and obtain the gyroscope data last received by the receiving end as the second data;

    A consistency check is performed on the first data and the second data.
11. The computer system according to claim 10, wherein said checking the consistency of the first data and the second data comprises the following:

    Respectively obtaining corresponding first summary values and second summary values based on the first data and the second data;

    Comparing the first summary value and the second summary value;

    If they are consistent, the first data passes the verification;

    If they are inconsistent, obtain other gyroscope data to replace the first data and/or second data, and perform verification again.
12. The computer system according to claim 11, wherein said acquiring other gyroscope data to replace said first data and/or second data and performing re-verification includes the following:

    Acquiring corresponding time stamp data based on the first data;

    Acquiring the second time stamp data recorded once before the first time stamp;

    Acquiring corresponding gyroscope data based on the second time stamp data;

    Replacing the current first data with the gyroscope data corresponding to the second time stamp data to obtain the replaced first data;

    The first data after the replacement and the second data are used for verification.
13. A computer system includes at least one computer device, each computer device includes a memory, a processor, and computer-readable instructions stored in the memory and executable on the processor, wherein the processor of the at least one computer device executes When the computer-readable instructions jointly implement the steps of the method, it also includes the application to the receiving end, including the following steps:

    Receiving gyroscope data synchronized from the sending end, where each gyroscope data corresponds to a time stamp data;

    Receiving a key generation signal, and obtaining the last received gyroscope data based on the time stamp data as the second data;

    Performing second processing on the second data by using a self-built algorithm to obtain a second key;

    Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

    Receive the encrypted text sent by the sender;

    The encrypted text is decrypted by using a symmetric encryption algorithm based on the second key to obtain the initial text.
14. The computer system according to claim 13, wherein, before performing the second processing on the second data to obtain the second key, the method includes the following:

    After receiving the information request signal sent by the sending end, the second data is sent to the sending end.
15. A computer-readable storage medium includes multiple storage media, and each storage medium stores computer-readable instructions, wherein the computer-readable instructions stored in the multiple storage media jointly implement the foregoing when executed by a processor The steps of the method, including application to the sender, include the following steps:

    After receiving the start signal, collect the gyroscope data of the mobile terminal in real time and synchronously send it to the receiving end; wherein, each of the gyroscope data corresponds to a time stamp data;

    Receiving a key generation signal, and obtaining the last collected gyroscope data based on the time stamp data as the first data;

    Performing first processing on the first data by using a self-built algorithm to obtain a first key;

    Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

    Obtain the initial text to be encrypted, encrypt the initial text with a symmetric encryption algorithm based on the first key, obtain the encrypted text, and send the encrypted text to the receiving end.
16. 15. The computer-readable storage medium according to claim 15, wherein, before performing the first processing on the first data to obtain the key, the method includes the following:

    Send an information request signal to the receiving end, and obtain the gyroscope data last received by the receiving end as the second data;

    A consistency check is performed on the first data and the second data.
17. The computer-readable storage medium according to claim 16, wherein the checking the consistency of the first data and the second data comprises the following:

    Respectively obtaining corresponding first summary values and second summary values based on the first data and the second data;

    Comparing the first summary value and the second summary value;

    If they are consistent, the first data passes the verification;

    If they are inconsistent, obtain other gyroscope data to replace the first data and/or second data, and perform verification again.
18. 18. A computer-readable storage medium according to claim 17, wherein said acquiring other gyroscope data to replace said first data and/or second data and performing re-verification includes the following:

    Acquiring corresponding time stamp data based on the first data;

    Acquiring the second time stamp data recorded once before the first time stamp;

    Acquiring corresponding gyroscope data based on the second time stamp data;

    Replacing the current first data with the gyroscope data corresponding to the second time stamp data to obtain the replaced first data;

    The first data after the replacement and the second data are used for verification.
19. A computer-readable storage medium includes multiple storage media, and each storage medium stores computer-readable instructions, wherein the computer-readable instructions stored in the multiple storage media jointly implement the foregoing when executed by a processor The steps of the method also include application to the receiving end, including the following steps:

    Receiving gyroscope data synchronized from the sending end, where each gyroscope data corresponds to a time stamp data;

    Receiving a key generation signal, and obtaining the last received gyroscope data based on the time stamp data as the second data;

    Performing second processing on the second data by using a self-built algorithm to obtain a second key;

    Wherein, the self-built algorithm includes serialization, disorder, character replacement, and digest algorithm;

    Receive the encrypted text sent by the sender;

    The encrypted text is decrypted by using a symmetric encryption algorithm based on the second key to obtain the initial text.
20. A computer-readable storage medium according to claim 19, wherein, before performing the second processing on the second data to obtain the second key, the method includes the following:

    After receiving the information request signal sent by the sending end, the second data is sent to the sending end.