CN111432365B - Financial big data processing method and system applying 5G network and block chain - Google Patents

Financial big data processing method and system applying 5G network and block chain Download PDF

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CN111432365B
CN111432365B CN202010198205.0A CN202010198205A CN111432365B CN 111432365 B CN111432365 B CN 111432365B CN 202010198205 A CN202010198205 A CN 202010198205A CN 111432365 B CN111432365 B CN 111432365B
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CN111432365A (en
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殷海龙
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Sichuan Yiwang Jiayuan Information Technology Co ltd
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Abstract

A financial big data processing method and system applying a 5G network and a block chain comprise the following steps: the client sends a financial transaction request to the customer service end; the customer service end generates protocol data and financial transaction data and sends the protocol data and the financial transaction data to the financial big data processing unit; the financial big data processing unit saves the protocol data and the financial transaction data on the local server and the at least two cloud servers. During query, the data on the local server and all the cloud servers are taken and compared, so that whether the data are tampered or not can be known, and the safety and reliability of the financial big data are guaranteed; communication delay is reduced by adopting 5G network communication; random variability and uniqueness of verification are increased through the cyclic redundancy check code and the timestamp, and reliability of communication is improved; the power of the communication module is optimized and adjusted, so that the problems of high power consumption, poor endurance and environmental pollution are avoided; the characteristics of incapability of tampering and traceability of the block chain are applied to financial big data processing, so that the safety and reliability of financial big data processing are guaranteed.

Description

Financial big data processing method and system applying 5G network and block chain
Technical Field
The invention relates to the field of financial big data processing applying a 5G network and a block chain, in particular to a financial big data processing method and system applying the 5G network and the block chain.
Background
At present, with the rapid development of economy and the internet, more and more financial businesses are beginning to be spread on the internet. The financial data security is a precondition for financial services to be developed on the internet, but most of the traditional financial big data processing systems use a local server as a data storage, so once the local server is maliciously tampered by a lawbreaker, the consequences are unreasonable.
Meanwhile, in order to ensure the security of communication between the client and the customer service end, generally, communication verification is performed before the communication between the client and the customer service end, and the communication between the client and the customer service end is established only after the communication verification is safe and qualified. However, the existing communication verification method has poor reliability and does not meet the high reliability requirement of financial big data communication.
Moreover, with the development of 5G networks, the financial field gradually starts to use 5G network communication, but in order to ensure the communication effect between the client and the customer service end, the power is generally adjusted to the maximum, which easily causes the problems of large power consumption, poor endurance, environmental pollution, large radiation, and harmlessness to the body.
Finally, in recent years, the blockchain technology is becoming more mature, and how to apply the blockchain technology to the field of financial big data processing is also a problem that needs to be solved urgently.
Disclosure of Invention
The invention aims to solve the problems found in the background technology, and provides a financial big data processing method and system applying a 5G network and a block chain.
In order to achieve the purpose, the invention adopts the following technical scheme: a financial big data processing method applying a 5G network and a block chain comprises the following steps:
s1: the client sends a financial transaction request to the customer service end through the 5G network;
s2: after receiving the financial transaction request through the 5G network, the customer service end generates corresponding protocol data and corresponding financial transaction data according to the financial transaction request, and sends the protocol data and the corresponding financial transaction data to the financial big data processing unit through the 5G network;
s3: after receiving the protocol data and the corresponding financial transaction data, the financial big data processing unit respectively stores the protocol data and the corresponding financial transaction data on a local server and at least two cloud servers;
s4: when a client sends a financial query request to a customer service end, the customer service end forwards the financial query request to the financial big data processing unit, the financial big data processing unit receives the financial query request and then simultaneously calls protocol data to be queried on the local server and all the cloud servers and corresponding financial transaction data according to the financial query request and compares the protocol data to be queried with the corresponding financial transaction data, if the protocol data to be queried and the corresponding financial transaction data are consistent, the financial big data processing unit directly returns the protocol data to be queried and the corresponding financial transaction data to the client through a 5G network, and if the protocol data to be queried and the corresponding financial transaction data are not consistent, the financial big data processing unit sends a warning signal to the customer service end and sends a waiting signal to the client.
The protocol data and the corresponding financial transaction data are respectively stored on the local server and the at least two cloud servers, so that when the inquiry is needed, the protocol data to be inquired on the local server and all the cloud servers and the corresponding financial transaction data are simultaneously taken and compared, and whether the data are falsified or not can be known, and the safety and the reliability of the financial big data are further guaranteed; meanwhile, by adopting 5G network communication, the communication delay between the client and the customer service terminal is greatly reduced, thereby further improving the efficiency of financial service processing.
Further, before the client sends a financial transaction request to a customer service end through a 5G network, communication between the client and the customer service end is established, specifically as follows:
the client side simultaneously sends request communication verification data encrypted by an asymmetric encryption algorithm to the customer service side and the financial data communication verification unit, and the request communication verification data comprises the following steps: the method comprises the steps of obtaining client time, a random number, a client machine code, an asymmetric encryption algorithm encryption password and a client cyclic redundancy check code, wherein the asymmetric encryption algorithm encryption password is the random number generated by a client;
after receiving the request communication verification data, the customer service end decrypts the request communication verification data by adopting an asymmetric encryption algorithm to obtain a data communication decryption key and generate a random number, and simultaneously sends response communication verification data encrypted by a symmetric block encryption algorithm to the financial data communication verification unit, wherein the response communication verification data comprises; the time of the customer service end, the random number, the machine code of the customer service end and the cyclic redundancy check code of the customer service end are obtained;
after the financial data communication verification unit receives the request communication verification data and the response communication verification data, the financial data communication verification unit reads a random number section in the communication verification data, decrypts a non-random number section through the displacement of the random number section, simultaneously reads a password data area, decrypts through an asymmetric encryption algorithm to obtain a password, and decrypts the rest fields through the password and a symmetric block encryption algorithm to obtain the decrypted request communication verification data and the response communication verification data;
verifying whether the client cyclic redundancy check code and the customer service cyclic redundancy check code in the decrypted request communication verification data and the decrypted response communication verification data are correct or not, and if one of the client cyclic redundancy check codes and the customer service cyclic redundancy check code is incorrect, sending the communication verification data to the customer service by the client for re-verification; if both the client machine code and the customer service machine code are correct, verifying whether the client machine code and the customer service machine code are correct, and if one is incorrect, sending communication verification data to the customer service end by the client for re-verification; if the time of the client side is correct, whether the time of the client side is matched with the time of the customer service side is verified, if not, the client side sends communication verification data to the customer service side for re-verification, and if so, communication between the client side and the customer service side is established.
The random variability and uniqueness of the communication verification are increased through the cyclic redundancy check code, the client time and the customer service time, and therefore the reliability of the communication verification is improved; meanwhile, the encryption key is transmitted by adopting an asymmetric encryption algorithm, so that the encryption code decryption complexity in communication verification is improved, and the reliability of communication verification is further improved; moreover, the data encryption is realized by adopting a symmetric block encryption algorithm, so that the data communication decryption complexity is improved, and the reliability of communication verification is further improved.
Furthermore, before the communication between the customer service end and the client end, the power of each communication module is debugged according to the signal intensity index of each communication module, and the signal intensity index Q of each communication modulesThe calculation formula is as follows:
Figure BDA0002418378960000041
wherein, WsIs the power of the communication module, PsEfficiency of transmission of 5g high frequency radio wave for communication module, MzFor transmitting the energy of a single photon in an optical fibre, RsTo transmit the diameter of the optical fiber, LxIs the distance between the communication module and the nearest base station, IzThe air transmission rate of 5g of high-frequency radio waves between the communication module and the nearest base station, and K is the adjacent channel leakage power ratio;
according to the signal intensity index Q of the communication modulesAdjusting power W of a communication modulesMake Q of the communication modulesAnd the communication requirements are met.
According to the power W of the communication modules5g high frequency radio wave transmission efficiency PsEnergy M of single light quantum in transmission optical fiberzDiameter R of transmission fibersDistance L between communication module and nearest base stationxAir transmission rate I of 5g high frequency radio wave between communication module and nearest base stationzAnd calculating the signal strength index Q of the communication module by the adjacent channel leakage power ratio KsAnd then according to the signal intensity index Q of the communication modulesTo adjust the power W of the communication modulesMake Q of the communication modulesThe communication requirement is met, so that the communication effect between the customer service end and the client can meet the use requirement on one hand, the power of the communication module can not be too high on the other hand, the problems of high power consumption, poor endurance and environmental pollution are avoided, and meanwhile, the radiation is small.
Further, when the distance between the customer service end and the client is short, the customer service end and the client are connected and communicated through D2D of a 5G network.
Further, the financial big data processing unit also sends the protocol data and the corresponding financial transaction data to a blockchain.
A financial big data processing system applying a 5G network and a block chain comprises a client, a financial big data processing unit and a customer service end, wherein,
the client is used for sending a financial transaction request to the customer service end through the 5G network;
the customer service end is used for generating corresponding protocol data and corresponding financial transaction data according to the financial transaction request after receiving the financial transaction request through a 5G network, and sending the protocol data and the corresponding financial transaction data to the financial big data processing unit through the 5G network;
the financial big data processing unit is used for respectively storing the protocol data and the corresponding financial transaction data on a local server and at least two cloud servers after receiving the protocol data and the corresponding financial transaction data; when a client sends a financial query request to a customer service end, the customer service end forwards the financial query request to the financial big data processing unit, the financial big data processing unit receives the financial query request and then simultaneously calls protocol data to be queried on the local server and all the cloud servers and corresponding financial transaction data according to the financial query request and compares the protocol data to be queried with the corresponding financial transaction data, if the protocol data to be queried and the corresponding financial transaction data are consistent, the financial big data processing unit directly returns the protocol data to be queried and the corresponding financial transaction data to the client through a 5G network, and if the protocol data to be queried and the corresponding financial transaction data are not consistent, the financial big data processing unit sends a warning signal to the customer service end and sends a waiting signal to the client.
Compared with the prior art, the invention has the advantages that:
1: the protocol data and the corresponding financial transaction data are respectively stored on the local server and the at least two cloud servers, so that when the inquiry is needed, the protocol data to be inquired on the local server and all the cloud servers and the corresponding financial transaction data are simultaneously taken and compared, and whether the data are falsified or not can be known, and the safety and the reliability of the financial big data are further guaranteed;
2: by adopting 5G network communication, the communication delay between the client and the customer service terminal is greatly reduced, so that the efficiency of financial service processing is further improved;
3: the random variability and uniqueness of the communication verification are increased through the cyclic redundancy check code, the client time and the customer service time, and therefore the reliability of the communication verification is improved;
4: by adopting the asymmetric encryption algorithm to transmit the key, the encryption and decryption complexity in the communication verification is improved, so that the reliability of the communication verification is further improved;
5: the data encryption is realized by adopting a symmetric block encryption algorithm, so that the data communication decryption complexity is improved, and the reliability of communication verification is further improved;
6: according to the power W of the communication modules5g high frequency radio wave transmission efficiency PsEnergy M of single light quantum in transmission optical fiberzDiameter R of transmission fibersDistance L between communication module and nearest base stationxAir transmission rate I of 5g high frequency radio wave between communication module and nearest base stationzAnd calculating the signal strength index Q of the communication module by the adjacent channel leakage power ratio KsAnd then according to the signal intensity index Q of the communication modulesTo adjust the power W of the communication modulesMake Q of the communication modulesThe communication requirements are met, so that on one hand, the communication effect between the customer service end and the client can meet the use requirements, on the other hand, the power of the communication module can not be too high, the problems of high power consumption, poor endurance and environmental pollution are avoided, and meanwhile, the radiation is small;
7: by sending the protocol data and the corresponding financial transaction data to the block chain, the safety and the reliability of financial big data processing can be further guaranteed through the characteristic that the block chain cannot be tampered and the characteristic that the block chain can be traced.
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Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1, the present embodiment provides a financial big data processing method applying a 5G network and a block chain, including the following steps:
s01: the client side simultaneously sends request communication verification data encrypted by an asymmetric encryption algorithm to the customer service side and the financial data communication verification unit, wherein the request communication verification data comprises the following steps: the method comprises the steps of obtaining client time, a random number, a client machine code, an asymmetric encryption algorithm encryption password and a client cyclic redundancy check code, wherein the asymmetric encryption algorithm encryption password is the random number generated by a client;
s02: after receiving the request communication verification data, the customer service end decrypts the request communication verification data by adopting an asymmetric encryption algorithm to obtain a data communication decryption key and generate a random number, and simultaneously sends response communication verification data encrypted by a symmetric block encryption algorithm to the financial data communication verification unit, wherein the response communication verification data comprises; the time of the customer service end, the random number, the machine code of the customer service end and the cyclic redundancy check code of the customer service end are obtained;
s03: after the financial data communication verification unit receives the request communication verification data and the response communication verification data, the financial data communication verification unit reads a random number section in the communication verification data, decrypts a non-random number section through the displacement of the random number section, simultaneously reads a password data area, decrypts through an asymmetric encryption algorithm to obtain a password, and decrypts the rest fields through the password and a symmetric block encryption algorithm to obtain the decrypted request communication verification data and the response communication verification data;
s04: verifying whether the client cyclic redundancy check code and the customer service cyclic redundancy check code in the decrypted request communication verification data and the decrypted response communication verification data are correct or not, and if one of the client cyclic redundancy check codes and the customer service cyclic redundancy check code is incorrect, sending the communication verification data to the customer service by the client for re-verification; if both the client machine code and the customer service machine code are correct, verifying whether the client machine code and the customer service machine code are correct, and if one is incorrect, sending communication verification data to the customer service end by the client for re-verification; if the time of the client side is correct, whether the time of the client side is matched with the time of the customer service side is verified, if not, the client side sends communication verification data to the customer service side for re-verification, and if so, communication between the client side and the customer service side is established. The random variability and uniqueness of the communication verification are increased through the cyclic redundancy check code, the client time and the customer service time, and therefore the reliability of the communication verification is improved; meanwhile, the encryption key is transmitted by adopting an asymmetric encryption algorithm, so that the encryption code decryption complexity in communication verification is improved, and the reliability of communication verification is further improved; moreover, the data encryption is realized by adopting a symmetric block encryption algorithm, so that the data communication decryption complexity is improved, and the reliability of communication verification is further improved.
S1: the client sends a financial transaction request to the customer service end through the 5G network;
s2: after receiving the financial transaction request through the 5G network, the customer service end generates corresponding protocol data and corresponding financial transaction data according to the financial transaction request, and sends the protocol data and the corresponding financial transaction data to the financial big data processing unit through the 5G network;
s3: after receiving the protocol data and the corresponding financial transaction data, the financial big data processing unit respectively stores the protocol data and the corresponding financial transaction data on a local server and at least two cloud servers;
s4: when a client sends a financial query request to a customer service end, the customer service end forwards the financial query request to the financial big data processing unit, the financial big data processing unit receives the financial query request and then simultaneously calls protocol data to be queried on the local server and all the cloud servers and corresponding financial transaction data according to the financial query request and compares the protocol data to be queried with the corresponding financial transaction data, if the protocol data to be queried and the corresponding financial transaction data are consistent, the financial big data processing unit directly returns the protocol data to be queried and the corresponding financial transaction data to the client through a 5G network, and if the protocol data to be queried and the corresponding financial transaction data are not consistent, the financial big data processing unit sends a warning signal to the customer service end and sends a waiting signal to the client.
The protocol data and the corresponding financial transaction data are respectively stored on the local server and the at least two cloud servers, so that when the inquiry is needed, the protocol data to be inquired on the local server and all the cloud servers and the corresponding financial transaction data are simultaneously taken and compared, and whether the data are falsified or not can be known, and the safety and the reliability of the financial big data are further guaranteed; meanwhile, by adopting 5G network communication, the communication delay between the client and the customer service terminal is greatly reduced, thereby further improving the efficiency of financial service processing.
Before the communication between the customer service end and the client end, the power of each communication module is debugged according to the signal intensity index of each communication module, and the signal intensity index Q of each communication modulesThe calculation formula is as follows:
Figure BDA0002418378960000101
wherein, WsIs the power of the communication module, PsEfficiency of transmission of 5g high frequency radio wave for communication module, MzFor transmitting the energy of a single photon in an optical fibre, RsTo transmit the diameter of the optical fiber, LxIs the distance between the communication module and the nearest base station, IzThe air transmission rate of 5g of high-frequency radio waves between the communication module and the nearest base station, and K is the adjacent channel leakage power ratio;
according to the signal intensity index Q of the communication modulesAdjusting power W of a communication modulesMake Q of the communication modulesAnd the communication requirements are met.
According to the power W of the communication modules5g high frequency radio wave transmission efficiency PsEnergy M of single light quantum in transmission optical fiberzDiameter R of transmission fibersDistance L between communication module and nearest base stationxAir transmission rate I of 5g high frequency radio wave between communication module and nearest base stationzAnd calculating the signal strength index Q of the communication module by the adjacent channel leakage power ratio KsAnd then according to the signal intensity index Q of the communication modulesTo adjust the power W of the communication modulesMake Q of the communication modulesThe communication requirement is met, so that the communication effect between the customer service end and the client can meet the use requirement on one hand, the power of the communication module can not be too high on the other hand, the problems of high power consumption, poor endurance and environmental pollution are avoided, and meanwhile, the radiation is small.
And when the customer service end is close to the client, the customer service end and the client are in connection communication through D2D of a 5G network. And the financial big data processing unit also sends the protocol data and the corresponding financial transaction data to a cloud backup server for backup and broadcasts the protocol data and the corresponding financial transaction data to a block chain through a 5G network.
The embodiment also provides a financial big data processing system applying the 5G network and the block chain, which comprises a client, a financial big data processing unit and a customer service end, wherein,
the client is used for sending a financial transaction request to the customer service end through the 5G network;
the customer service end is used for generating corresponding protocol data and corresponding financial transaction data according to the financial transaction request after receiving the financial transaction request through a 5G network, and sending the protocol data and the corresponding financial transaction data to the financial big data processing unit through the 5G network;
the financial big data processing unit is used for respectively storing the protocol data and the corresponding financial transaction data on a local server and at least two cloud servers after receiving the protocol data and the corresponding financial transaction data; when a client sends a financial query request to a customer service end, the customer service end forwards the financial query request to the financial big data processing unit, the financial big data processing unit receives the financial query request and then simultaneously calls protocol data to be queried on the local server and all the cloud servers and corresponding financial transaction data according to the financial query request and compares the protocol data to be queried with the corresponding financial transaction data, if the protocol data to be queried and the corresponding financial transaction data are consistent, the financial big data processing unit directly returns the protocol data to be queried and the corresponding financial transaction data to the client through a 5G network, and if the protocol data to be queried and the corresponding financial transaction data are not consistent, the financial big data processing unit sends a warning signal to the customer service end and sends a waiting signal to the client.

Claims (5)

1. A financial big data processing method applying a 5G network and a block chain is characterized by comprising the following steps:
s1: the client sends a financial transaction request to the customer service end through the 5G network;
s2: after receiving the financial transaction request through the 5G network, the customer service end generates corresponding protocol data and corresponding financial transaction data according to the financial transaction request, and sends the protocol data and the corresponding financial transaction data to the financial big data processing unit through the 5G network;
s3: after receiving the protocol data and the corresponding financial transaction data, the financial big data processing unit respectively stores the protocol data and the corresponding financial transaction data on a local server and at least two cloud servers;
s4: when a client sends a financial query request to a customer service end, the customer service end forwards the financial query request to the financial big data processing unit, the financial big data processing unit receives the financial query request and then simultaneously calls protocol data to be queried on the local server and all the cloud servers and corresponding financial transaction data according to the financial query request and compares the protocol data to be queried with the corresponding financial transaction data, if the protocol data to be queried and the corresponding financial transaction data are consistent, the financial big data processing unit directly returns the protocol data to be queried and the corresponding financial transaction data to the client through a 5G network, and if the protocol data to be queried and the corresponding financial transaction data are not consistent, the financial big data processing unit sends a warning signal to the customer service end and sends a waiting signal to the client;
before the client sends a financial transaction request to a customer service end through a 5G network, communication between the client and the customer service end is established, which specifically comprises the following steps:
the client side simultaneously sends request communication verification data encrypted by an asymmetric encryption algorithm to the customer service side and the financial data communication verification unit, and the request communication verification data comprises the following steps: the method comprises the steps of obtaining client time, a random number, a client machine code, an asymmetric encryption algorithm encryption password and a client cyclic redundancy check code, wherein the asymmetric encryption algorithm encryption password is the random number generated by a client;
after receiving the request communication verification data, the customer service end decrypts the request communication verification data by adopting an asymmetric encryption algorithm to obtain a data communication decryption key and generate a random number, and simultaneously sends response communication verification data encrypted by a symmetric block encryption algorithm to the financial data communication verification unit, wherein the response communication verification data comprises; the time of the customer service end, the random number, the machine code of the customer service end and the cyclic redundancy check code of the customer service end are obtained;
after the financial data communication verification unit receives the request communication verification data and the response communication verification data, the financial data communication verification unit reads a random number section in the communication verification data, decrypts a non-random number section through the displacement of the random number section, simultaneously reads a password data area, decrypts through an asymmetric encryption algorithm to obtain a password, and decrypts the rest fields through the password and a symmetric block encryption algorithm to obtain the decrypted request communication verification data and the response communication verification data;
verifying whether the client cyclic redundancy check code and the customer service cyclic redundancy check code in the decrypted request communication verification data and the decrypted response communication verification data are correct or not, and if one of the client cyclic redundancy check codes and the customer service cyclic redundancy check code is incorrect, sending the communication verification data to the customer service by the client for re-verification; if both the client machine code and the customer service machine code are correct, verifying whether the client machine code and the customer service machine code are correct, and if one is incorrect, sending communication verification data to the customer service end by the client for re-verification; if the time of the client side is correct, whether the time of the client side is matched with the time of the customer service side is verified, if not, the client side sends communication verification data to the customer service side for re-verification, and if so, communication between the client side and the customer service side is established.
2. The method as claimed in claim 1, wherein before the communication between the customer service end and the client end, the power of each communication module is adjusted according to the signal strength index of the communication module, and the signal strength index Q of the communication module is greater than or equal to the signal strength index Q of the communication modulesThe calculation formula is as follows:
Figure FDA0002667797680000021
wherein, WsIs the power of the communication module, PsEfficiency of transmission of 5g high frequency radio wave for communication module, MzFor transmitting the energy of a single photon in an optical fibre, RsTo transmit the diameter of the optical fiber, LxIs the distance between the communication module and the nearest base station, IzThe air transmission rate of 5g of high-frequency radio waves between the communication module and the nearest base station, and K is the adjacent channel leakage power ratio;
according to the signal intensity index Q of the communication modulesAdjusting power W of a communication modulesMake Q of the communication modulesAnd the communication requirements are met.
3. The financial big data processing method applying the 5G network and the blockchain according to claim 1, wherein when the customer service end is closer to the client end, the customer service end communicates with the client end through a D2D connection of the 5G network.
4. The financial big data processing method applying the 5G network and the blockchain according to claim 1, wherein the financial big data processing unit further transmits the protocol data and the corresponding financial transaction data to the blockchain.
5. The financial big data processing system applying the 5G network and the block chain is characterized by comprising a client, a financial big data processing unit and a customer service end, wherein,
the client is used for sending a financial transaction request to the customer service end through the 5G network;
the customer service end is used for generating corresponding protocol data and corresponding financial transaction data according to the financial transaction request after receiving the financial transaction request through a 5G network, and sending the protocol data and the corresponding financial transaction data to the financial big data processing unit through the 5G network;
the financial big data processing unit is used for respectively storing the protocol data and the corresponding financial transaction data on a local server and at least two cloud servers after receiving the protocol data and the corresponding financial transaction data; when a client sends a financial query request to a customer service end, the customer service end forwards the financial query request to the financial big data processing unit, the financial big data processing unit receives the financial query request and then simultaneously calls protocol data to be queried on the local server and all the cloud servers and corresponding financial transaction data according to the financial query request and compares the protocol data to be queried with the corresponding financial transaction data, if the protocol data to be queried and the corresponding financial transaction data are consistent, the financial big data processing unit directly returns the protocol data to be queried and the corresponding financial transaction data to the client through a 5G network, and if the protocol data to be queried and the corresponding financial transaction data are not consistent, the financial big data processing unit sends a warning signal to the customer service end and sends a waiting signal to the client;
before the client sends a financial transaction request to a customer service end through a 5G network, communication between the client and the customer service end is established, which specifically comprises the following steps:
the client side simultaneously sends request communication verification data encrypted by an asymmetric encryption algorithm to the customer service side and the financial data communication verification unit, and the request communication verification data comprises the following steps: the method comprises the steps of obtaining client time, a random number, a client machine code, an asymmetric encryption algorithm encryption password and a client cyclic redundancy check code, wherein the asymmetric encryption algorithm encryption password is the random number generated by a client;
after receiving the request communication verification data, the customer service end decrypts the request communication verification data by adopting an asymmetric encryption algorithm to obtain a data communication decryption key and generate a random number, and simultaneously sends response communication verification data encrypted by a symmetric block encryption algorithm to the financial data communication verification unit, wherein the response communication verification data comprises; the time of the customer service end, the random number, the machine code of the customer service end and the cyclic redundancy check code of the customer service end are obtained;
after the financial data communication verification unit receives the request communication verification data and the response communication verification data, the financial data communication verification unit reads a random number section in the communication verification data, decrypts a non-random number section through the displacement of the random number section, simultaneously reads a password data area, decrypts through an asymmetric encryption algorithm to obtain a password, and decrypts the rest fields through the password and a symmetric block encryption algorithm to obtain the decrypted request communication verification data and the response communication verification data;
verifying whether the client cyclic redundancy check code and the customer service cyclic redundancy check code in the decrypted request communication verification data and the decrypted response communication verification data are correct or not, and if one of the client cyclic redundancy check codes and the customer service cyclic redundancy check code is incorrect, sending the communication verification data to the customer service by the client for re-verification; if both the client machine code and the customer service machine code are correct, verifying whether the client machine code and the customer service machine code are correct, and if one is incorrect, sending communication verification data to the customer service end by the client for re-verification; if the time of the client side is correct, whether the time of the client side is matched with the time of the customer service side is verified, if not, the client side sends communication verification data to the customer service side for re-verification, and if so, communication between the client side and the customer service side is established.
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