CN110942382A - Electronic contract generating method and device, computer equipment and storage medium - Google Patents
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Abstract
The invention discloses a method for generating an electronic contract, which comprises the following steps: receiving a service request sent by a client, wherein the service request comprises identity information of the client and a service identifier to be handled; acquiring a corresponding electronic contract template according to the to-be-handled service identifier, and returning the electronic contract template to the client; receiving an electronic signature and a fingerprint image to be verified corresponding to the electronic contract template sent by a client; acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network according to the identity information of the client; comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively; and if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image, generating an electronic contract according to the electronic contract template, the verified electronic signature and the pre-stored fingerprint image. The invention solves the problem of lower security of the client identity verification in the existing electronic signature mode.
Description
Technical Field
The present invention relates to the field of information technologies, and in particular, to a method and an apparatus for generating an electronic contract, a computer device, and a storage medium.
Background
During the business process between the bank and the client, a large amount of electronic business certificates are generated. These electronic service vouchers include both the service content and the signature information of the customer on the service voucher. The customer needs to pre-store corresponding signature information in different banks so as to verify the electronic signature submitted by the current customer when the banks generate the electronic service certificate. However, in the prior art, different banks independently manage their own customer data, and the banks cannot share the customer data; and each bank stores the signature information of the client in the local server, which is easy to cause other people to tamper or illegally steal the signature information of the client, and the signature information of the client can be lost when the server is attacked. The signature information is used as a kind of privacy information of the client, and the prior art does not register or monitor the access of the privacy information, so that the security is poor. The security of verifying the customer based on locally stored customer signature information is low.
Therefore, finding a method for improving the security of the client identity verification in the existing electronic signature method is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a method and a device for generating an electronic contract, terminal equipment and a storage medium, which aim to solve the problem of low security of client identity verification in the conventional electronic signature mode.
A method of generating an electronic contract, comprising:
receiving a service request sent by a client, wherein the service request comprises identity information of the client and a service identifier to be handled;
acquiring a corresponding electronic contract template according to the to-be-handled service identifier, and returning the electronic contract template to the client;
receiving an electronic signature and a fingerprint image to be verified corresponding to the electronic contract template sent by the client;
acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network according to the identity information of the client;
comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively;
and if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image, generating an electronic contract according to the electronic contract template and the verified electronic signature and the verified fingerprint image.
Further, the receiving the to-be-verified electronic signature and the fingerprint image corresponding to the electronic contract template sent by the client includes:
receiving a plurality of encrypted data packets corresponding to the electronic signature to be verified and the fingerprint image, which are sent by the client according to the electronic contract template, wherein each encrypted data packet carries a serial number;
generating an encryption/decryption key according to the identity information of the client and the electronic signature, and decrypting the encrypted data packet with the minimum serial number by adopting the encryption/decryption key to obtain the fingerprint image fragment with the minimum serial number and the encryption/decryption key of the next encrypted data packet;
decrypting the encrypted data packet with the minimum serial number in the rest encrypted data packets by adopting the encryption/decryption key of the next encrypted data packet, and repeating the steps until all encrypted data packets are decrypted to obtain fingerprint image fragments in all encrypted data packets;
and splicing the fingerprint image fragments according to the sequence numbers from small to large to obtain the fingerprint image corresponding to the electronic contract template.
Further, the acquiring the electronic signature and the fingerprint image prestored by the client from the blockchain network according to the identity information of the client comprises:
sending a first acquisition request to another server of the block chain network node where the server is located, wherein the first acquisition request comprises an electronic certificate of the server and identity information of a client, so that the other server performs authority verification according to the electronic certificate of the server, and searches an electronic signature and a fingerprint image prestored by the client according to the identity information of the client when the verification passes;
and receiving the pre-stored electronic signature and fingerprint image returned by the other server according to the identity information of the client.
Further, the acquiring the electronic signature and the fingerprint image prestored by the client from the blockchain network according to the identity information of the client comprises:
sending a second acquisition request to the blockchain network, wherein the second acquisition request comprises the electronic certificate of the server and the identity information of the client, so that nodes on the blockchain network perform consensus verification according to the electronic certificate of the server, and when the verification is passed, searching an electronic signature and a fingerprint image prestored by the client according to the identity information of the client;
and receiving the pre-stored electronic signature and fingerprint image returned by the blockchain network according to the identity information of the client.
Further, after acquiring the electronic signature and fingerprint image prestored by the client from the blockchain network according to the identity information of the client, the method further comprises the following steps:
sending an acquisition record uplink request to the blockchain network, wherein the acquisition record uplink request comprises an electronic certificate of the server, so that a node on the blockchain network performs consensus verification on the electronic certificate, and when the verification is passed, adding blocks in a blockchain to store the pre-stored acquisition records of the electronic signature and the fingerprint image;
and receiving the uplink obtaining record result returned by the block chain network.
Further, after generating an electronic contract from the electronic contract template and the verified electronic signature and fingerprint image, the method further comprises:
sending an electronic contract uplink request to the block chain network, wherein the electronic contract uplink request comprises an electronic certificate of a server, a verified electronic signature, a fingerprint image and an electronic contract, so that a node on the block chain network performs consensus verification on the electronic certificate of the server, and blocks are added to the block chain to store the verified electronic signature, the verified fingerprint image and the electronic contract when the verification is passed;
and receiving an uplink result of the electronic contract returned by the block chain network.
An electronic-contract generating apparatus comprising:
the service receiving module is used for receiving a service request sent by a client, wherein the service request comprises the identity information of the client and a service identifier to be handled;
the template acquisition module is used for acquiring a corresponding electronic contract template according to the to-be-handled service identifier and returning the electronic contract template to the client;
the to-be-verified information receiving module is used for receiving the to-be-verified electronic signature and the fingerprint image corresponding to the electronic contract template sent by the client;
the pre-stored information acquisition module is used for acquiring an electronic signature and a fingerprint image which are pre-stored by the client from a block chain network according to the identity information of the client;
the comparison module is used for comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively;
and the contract generation module is used for generating an electronic contract according to the electronic contract template and the verified electronic signature and fingerprint image if the electronic signature and fingerprint image to be verified are consistent with the pre-stored electronic signature and fingerprint image.
Further, the pre-stored information obtaining module includes:
the first request unit is used for sending a first acquisition request to another server of the block chain network node where the server is located, wherein the first acquisition request comprises an electronic certificate of the server and identity information of a client, so that the other server performs authority verification according to the electronic certificate of the server, and searches an electronic signature and a fingerprint image prestored by the client according to the identity information of the client when the authority verification passes;
a first receiving unit, configured to receive a pre-stored electronic signature and fingerprint image returned by the other server according to the identity information of the client; and/or
A second request unit, configured to send a second acquisition request to the blockchain network, where the second acquisition request includes an electronic certificate of the server and identity information of the client, so that a node on the blockchain network performs consensus verification according to the electronic certificate of the server, and searches for an electronic signature and a fingerprint image pre-stored by the client according to the identity information of the client when the verification passes;
and the second receiving unit is used for receiving the prestored electronic signature and the fingerprint image which are returned by the blockchain network according to the identity information of the client.
A computer device comprising a memory, a processor and a computer program stored in said memory and executable on said processor, said processor implementing the steps of the above-mentioned method for generating an electronic contract when executing said computer program.
A computer-readable storage medium, which stores a computer program that, when executed by a processor, implements the steps of the above-described method for generating an electronic contract.
The method comprises the steps of introducing a block chain into a transaction flow of a bank, storing an electronic signature and a fingerprint image prestored by a client in a block chain network in advance, and when receiving a service request sent by the client to obtain identity information and a to-be-handled service identifier of the client, firstly obtaining a corresponding electronic contract template according to the to-be-handled service identifier and returning the electronic contract template to the client; then receiving an electronic signature and a fingerprint image to be verified, which are sent by the client according to the electronic contract template; then, acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network according to the identity information of the client; finally, comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image; and if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image and the identity information of the client passes verification, generating an electronic contract according to the electronic contract template and the verified electronic signature and the verified fingerprint image. The invention increases the verification of the fingerprint image, and uses the block chain network to store the electronic signature and the fingerprint image, thereby improving the safety of the existing electronic signature mode for verifying the identity of the client, ensuring that the electronic signatures and the fingerprint images of different users are difficult to steal and tamper, and ensuring the safety of the electronic signatures and the fingerprint images even if the storage server is broken.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a flow chart of a method of generating an electronic contract in one embodiment of the present invention;
FIG. 2 is a flowchart of step S103 of the method for generating an electronic contract according to an embodiment of the present invention;
FIG. 3 is a flowchart of step S104 of the method for generating an electronic contract according to an embodiment of the present invention;
fig. 4 is another flowchart of step S104 in the method for generating an electronic contract according to an embodiment of the present invention;
FIG. 5 is a flowchart of obtaining uplink records in a method for generating an electronic contract according to an embodiment of the present invention;
FIG. 6 is a flowchart of the uplink of the electronic contract in the method for generating the electronic contract according to an embodiment of the present invention;
FIG. 7 is a functional block diagram of an apparatus for generating an electronic contract according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a computer device according to an embodiment of the 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 some, not all, embodiments of the present invention. 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.
The following describes in detail the method for generating an electronic contract according to an embodiment of the present invention. The embodiment of the invention introduces the block chain into the business process of the bank, and the generation method of the electronic contract generates the electronic contract for the bank and simultaneously adopts a method for signing the electronic contract by a client, which comprises a process of verifying the identity of the client by a bank institution. In the embodiment of the invention, the method for generating the electronic contract is applied to a server of a banking institution. The server can communicate with clients such as computer equipment in front of counters and self-service terminals to acquire service requests of the clients, and can also communicate with a node server on a block chain network to acquire electronic signatures and fingerprint images prestored by the clients. According to the embodiment of the invention, the electronic signatures and the fingerprint images pre-stored by the client are stored in the block chain network in advance, so that the electronic signatures and the fingerprint images of different users are difficult to steal and tamper, the safety of the electronic signatures and the fingerprint images can be ensured even if the storage server is broken, and the safety of the client identity verification in the conventional electronic signature mode is improved. The following describes in detail the method for generating an electronic contract according to an embodiment of the present invention. As shown in fig. 1, the electronic signature method includes:
in step S101, a service request sent by a client is received, where the service request includes identity information of the client and a to-do service identifier.
Here, the client refers to a terminal device that can interact with a user to obtain a service request with respect to a server, and includes, but is not limited to, a computer device in front of a counter, a self-service terminal, and an intelligent terminal. The identity information of the customer includes, but is not limited to, an identification number, a passport number, a port and australian pass number, a driver's license number for identifying the customer. The service identifier to be transacted is identification information of banking services applied for transacting by a client and is used for distinguishing different services. Illustratively, the services include, but are not limited to, a borrowing service, a securities investment service, a clearing service, a payment settlement service, a hosting service, a vouching service, and the like.
In step S102, a corresponding electronic contract template is obtained according to the to-do service identifier, and the electronic contract template is returned to the client.
In the embodiment of the invention, the server stores the electronic contract templates corresponding to different services. For the to-do service needing to be signed, the embodiment of the invention acquires the electronic contract template corresponding to the to-do service according to the to-do service identifier. And sending the electronic contract template to the client for reading and guiding the signature of the bank client in front of the client.
In step S103, an electronic signature and a fingerprint image to be verified corresponding to the electronic contract template sent by the client are received.
And the client receives the electronic contract template returned by the server and displays the electronic contract template for the bank client to read. After the bank customer reads the electronic contract template, the electronic signature can be input through preset signature software and the fingerprint image can be input through a preset fingerprint collector so as to sign the electronic contract. And the client receives the electronic signature and the fingerprint image which are input by the current bank client, and sends the electronic signature and the fingerprint image to the server for verification. And the server receives the electronic signature and the fingerprint image to be verified sent by the client.
Optionally, as a preferred example of the present invention, in order to improve security of transmission of a fingerprint image between a client and a server, the embodiment of the present invention performs encrypted transmission on the fingerprint image. Fig. 2 shows a specific implementation flow of step S103 in the method for generating an electronic contract according to the embodiment of the present invention. As shown in fig. 3, the step S103 of receiving the to-be-verified electronic signature and the fingerprint image corresponding to the electronic contract template sent by the client includes:
in step S201, a plurality of encrypted data packets corresponding to the electronic signature to be verified and the fingerprint image, which are sent by the client according to the electronic contract template, are received, where each encrypted data packet carries a sequence number.
The client divides the fingerprint image into a plurality of segments, and allocates a sequence number to each fingerprint image segment according to the sequence of each segment in the fingerprint image, wherein the sequence number allocated to the first divided fingerprint image segment is the smallest, the sequence number allocated to the second fingerprint image segment is larger than the previous sequence number, and so on, and the sequence number allocated to the last fingerprint image segment is the largest. Then, each fingerprint image segment is encrypted, and each fingerprint image segment corresponds to a different encryption/decryption key. When generating an encrypted data packet corresponding to a fingerprint image, the client firstly encrypts the fingerprint image segment with the maximum sequence number by using the encryption/decryption key of the fingerprint image segment with the maximum sequence number to obtain the encrypted data packet with the maximum sequence number; then, encrypting the encryption/decryption key of the fingerprint image fragment with the largest serial number and the fingerprint image fragment with the largest serial number by adopting the encryption/decryption key corresponding to the fingerprint image fragment with the largest serial number to obtain an encrypted data packet with the largest serial number; and in the same way, for the fingerprint image fragment with the minimum sequence number, encrypting the encryption/decryption key of the fingerprint image fragment with the minimum sequence number and the fingerprint image fragment with the minimum sequence number by adopting the encryption/decryption key corresponding to the fingerprint image fragment with the minimum sequence number to obtain the encrypted data packet with the minimum sequence number. The encryption/decryption key corresponding to the fingerprint image segment with the minimum sequence number is obtained by calculation according to the identity information and the electronic signature of the client by adopting a secret key algorithm, and the encryption/decryption keys corresponding to other fingerprint image segments are generated by random numbers.
Therefore, the client only needs to send the electronic signature to be verified and a plurality of encrypted data packets corresponding to the fingerprint image and the serial numbers of the encrypted data packets to the server. By sequentially splitting the fingerprint image into a plurality of encrypted data packets and then transmitting the encrypted data packets, even if part of the data packets are stolen in the transmission process of the fingerprint image, the stealing party cannot decrypt the data packets, and the security in the transmission process of the fingerprint image is improved.
And the server receives the electronic signature to be verified and a plurality of encrypted data packets corresponding to the fingerprint image and the serial numbers thereof from the client, so that the data transmission quantity is reduced.
In step S202, an encryption/decryption key is generated according to the identity information of the client and the electronic signature, and the encryption/decryption key is used to decrypt the encrypted data packet with the minimum serial number, so as to obtain the fingerprint image fragment with the minimum serial number and the encryption/decryption key of the next encrypted data packet.
As described above, the encryption/decryption key corresponding to the fingerprint image fragment with the smallest sequence number is obtained by calculation according to the identity information and the electronic signature of the client by using a secret key algorithm, the server can generate the encryption/decryption key according to the identity information and the electronic signature of the client by using the secret key algorithm, and the encryption/decryption key is used for decrypting the encrypted data packet with the smallest sequence number to obtain the encryption/decryption key of the fingerprint image fragment with the smallest sequence number and the next encrypted data packet. And the next encrypted data packet is an encrypted data packet corresponding to the fingerprint image fragment with the small sequence number.
In step S203, the encryption/decryption key of the next encrypted data packet is used to decrypt the encrypted data packet with the minimum serial number in the remaining encrypted data packets, and so on until the decryption of all encrypted data packets is completed, so as to obtain the fingerprint image segments in all encrypted data packets.
Here, the encryption/decryption key of the next encrypted data packet obtained in step S202 is the encryption/decryption key corresponding to the next encrypted data packet to be decrypted. Because the encrypted data packet with the minimum sequence number is decrypted, the encrypted data packet with the minimum sequence number in the remaining encrypted data packets is the next encrypted data packet to be decrypted, the server obtains the encrypted data packet with the minimum sequence number from the remaining encrypted data packets so as to obtain the next encrypted data packet to be decrypted, and then the encryption/decryption key of the next encrypted data packet obtained in step S202 is used for decrypting the next encrypted data packet to be decrypted so as to obtain the fingerprint image fragment and the encryption/decryption key of the next encrypted data packet. And continuously decrypting the encrypted data packet with the minimum serial number in the rest encrypted data packets by using the encryption/decryption key of the next encrypted data packet until the fingerprint image fragments in all encrypted data packets are obtained.
In step S204, the fingerprint image segments are spliced from small to large according to the sequence numbers to obtain the fingerprint image corresponding to the electronic contract template.
After the fingerprint images of all encrypted data packets are obtained, the fingerprint image segments are spliced according to the sequence numbers of the fingerprint images from small to large so as to recombine the fingerprint images.
According to the embodiment of the invention, the fingerprint image is sequentially split into the plurality of encrypted data packets for transmission, so that even if part of the data packets are stolen in the transmission process of the fingerprint image, the stealing party cannot decrypt the data packets, and the security in the transmission process of the fingerprint image is improved. Each encrypted data packet includes a fingerprint image fragment and an encryption/decryption key of the next encrypted data packet. The encryption/decryption key of the encrypted data packet with the minimum serial number is generated by the server according to the electronic signature and the identity information of the client, and then the server acquires the encryption/decryption key of the next encrypted data packet according to the decrypted encrypted data packet to decrypt the next encrypted data packet, so that the confidentiality of the key of the encrypted data packet is enhanced, and the problem of key distribution safety is solved.
In step S104, an electronic signature and a fingerprint image pre-stored by the client are obtained from the blockchain network according to the identity information of the client.
In the embodiment of the invention, a plurality of electronic signatures and fingerprint images pre-stored by a client are stored on the blockchain network, and for the convenience of distinguishing, the electronic signatures and fingerprint images pre-stored by the client are stored in association with the identity information of the client. And after the identity information of the client is obtained, acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network by taking the identity information as an index.
Optionally, the blockchain network includes a plurality of nodes, each node includes one or more servers, and the electronic signature and the fingerprint image pre-stored by the client may be stored in another server of the node where the server is located, or may be stored in another node of the blockchain network.
As a preferred example of the present invention, when the electronic signature and the fingerprint image prestored in the client are stored in another server of the node where the server is located, as shown in fig. 3, the step S104 includes:
in step S301, a first obtaining request is sent to another server of the blockchain network node where the server is located, where the first obtaining request includes the electronic certificate of the server and the identity information of the client, so that the another server performs permission verification according to the electronic certificate of the server, and when the verification passes, searches for the electronic signature and the fingerprint image pre-stored by the client according to the identity information of the client.
Here, the first acquisition request is for acquiring a pre-stored electronic signature and fingerprint image to the other server. When the electronic signature and the fingerprint image prestored by the client are stored on another server of the blockchain node where the server is located, the server sends a first acquisition request to the other server. The first acquisition request comprises an electronic certificate of the server and identity information of a client, wherein the electronic certificate of the server is used for the other server to carry out authority verification on the server, and the identity information of the client is used for searching an electronic signature and a fingerprint image prestored by the client when the verification is passed.
And when the other server passes the authority verification of the server, sending the electronic signature and the fingerprint image prestored by the client to the server in response to the first acquisition request.
In step S302, a pre-stored electronic signature and fingerprint image returned by the other server according to the identity information of the client are received.
The above embodiments enable the acquisition of a pre-stored electronic signature and fingerprint image based on another server from the same node of the blockchain network. It can be understood that, when a banking institution accesses a node on the blockchain network and has updated the pre-stored electronic signature and fingerprint image to the server, the above embodiment realizes that the client data is directly read from the blockchain network, and the security of reading the client data is improved by performing the authority verification on the requester when the client data is read.
As a preferred example of the present invention, when the electronic signature and fingerprint image pre-stored by the client are stored on another node of the blockchain network, as shown in fig. 4, the step S104 includes:
in step S401, a second acquisition request is sent to the blockchain network, where the second acquisition request includes the electronic certificate of the server and the identity information of the client, so that nodes on the blockchain network perform consensus verification according to the electronic certificate of the server, and when the verification passes, look up the electronic signature and fingerprint image pre-stored by the client according to the identity information of the client.
Here, the second acquisition request is used to acquire a pre-stored electronic signature and fingerprint image from the blockchain network. When the electronic signature and the fingerprint image prestored by the client are stored on another node of the blockchain network, the server sends a second acquisition request to the blockchain network. The second acquisition request comprises an electronic certificate of the server and identity information of the client, wherein the electronic certificate of the server is used for node on a block chain network to carry out consensus verification on the server, and the identity information of the client is used for searching an electronic signature and a fingerprint image prestored by the client when verification is passed.
And when the node on the blockchain network agrees with the server and the agreement check is passed, the blockchain network responds to the second acquisition request and sends the electronic signature and the fingerprint image prestored by the client to the server.
In step S402, a pre-stored electronic signature and fingerprint image returned by the blockchain network according to the identity information of the client are received.
The above-described embodiments enable the acquisition of a pre-stored electronic signature and fingerprint image based on another node of the blockchain network. It can be understood that, when different banking institutions respectively access one node on the block chain network, the above embodiment realizes sharing of the client data among the different banking institutions, and improves transparency and security of the shared client data by performing consensus verification on the requesting party when the client data is shared.
Optionally, as another preferred example of the present invention, after obtaining the pre-stored electronic signature and fingerprint image, the method further includes linking the acquisition record. Fig. 5 shows a process for acquiring uplink records according to an embodiment of the present invention. As shown in fig. 5, the method may further include:
in step S501, an acquire record uplink request is sent to the blockchain network, where the acquire record uplink request includes the electronic certificate of the server, so that a node on the blockchain network performs consensus verification on the electronic certificate, and when the verification passes, a block is added to the blockchain to store the pre-stored electronic signature and the acquire record of the fingerprint image.
It should be noted that, the server sends an acquire record uplink request to the blockchain network, where the acquire record uplink request is used to request that the acquired record of the electronic signature and the fingerprint image is written into the blockchain. And the acquisition record uplink request carries the electronic certificate of the server. And the electronic certificate of the server is used for carrying out consensus verification on the server by the node on the block chain network.
And each node in the block chain network performs consensus verification on the electronic certificate of the server, if the consensus verification is passed, the block chain allows the acquisition record uplink request, and the pre-stored electronic signature and the acquisition record of the fingerprint image are stored by adding blocks. If the common identification verification is not passed, the uplink request is refused to be acquired.
In step S502, the uplink acquisition record result returned by the blockchain network is received.
Therefore, through the steps S501 and S502, the access records of the electronic signature and the fingerprint image are stored in the block chain, so that the traceability of the access records of the electronic signature and the fingerprint image is realized, the access of the electronic signature and the fingerprint image is guaranteed, and the security of the banking business handling process is improved.
In step S105, the electronic signature and the fingerprint image to be verified are compared with a pre-stored electronic signature and a pre-stored fingerprint image, respectively.
Here, the embodiment of the present invention compares the electronic signature to be verified with the pre-stored electronic signature, and compares the fingerprint image to be verified with the pre-stored fingerprint image, respectively.
In step S106, if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image, an electronic contract is generated according to the electronic contract template and the verified electronic signature and the verified fingerprint image.
Through the comparison in step S105, if the electronic signature to be verified is identical to the pre-stored electronic signature, and the fingerprint image to be verified is identical to the pre-stored fingerprint image, and the identity information of the client passes the verification, the electronic contract template is associated with the verified electronic signature and the verified fingerprint image, so as to generate the electronic contract.
The embodiment of the invention improves the safety of the existing electronic signature mode for verifying the identity of the client by adding the verification to the fingerprint image and storing the electronic signature and the fingerprint image by using the block chain network, so that the electronic signatures and the fingerprint images of different users are difficult to steal and tamper, the safety of the electronic signatures and the fingerprint images can be ensured even if the storage server is broken, and the safety of the existing electronic signature mode for verifying the identity of the client is effectively improved.
Optionally, as another preferred example of the present invention, after obtaining the electronic contract, the method further includes uplink transmission of the electronic contract. Fig. 6 shows a process of implementing uplink under an electronic contract according to an embodiment of the present invention, and as shown in fig. 6, the method may further include:
in step S601, an electronic contract uplink request is sent to the blockchain network, where the electronic contract uplink request includes an electronic certificate of a server, a verified electronic signature and fingerprint image, and an electronic contract, so that a node on the blockchain network performs consensus verification on the electronic certificate of the server, and when the verification passes, a block is added to the blockchain to store the verified electronic signature and fingerprint image, and the electronic contract.
It should be noted that, the server sends an electronic contract uplink request to the blockchain network, where the electronic contract uplink request is used to request that the generated electronic contract, the verified electronic signature, and the fingerprint image are written into the blockchain. The electronic contract uplink request carries an electronic certificate of the server and is used for carrying out consensus verification on the server by a node on the block chain network.
And each node in the block chain network performs consensus verification on the electronic certificate of the server, if the consensus verification is passed, the block chain allows the electronic contract uplink request, and the electronic contract, the verified electronic signature and the fingerprint image are stored by adding blocks. And if the consensus verification fails, rejecting the uplink request of the electronic contract. It will be appreciated that the electronic contract, verified electronic signature and fingerprint image may be stored in an encrypted or unencrypted manner on the blockchain, requiring the requesting party to use a key for decryption when stored in an encrypted manner.
In step S602, an uplink result of the electronic contract returned by the blockchain network is received.
Therefore, through the steps S601 and S602, the signed electronic contract is stored in the blockchain, or the electronic signature, the fingerprint image and the signed electronic contract uploaded by the client are stored in the blockchain together, so that the electronic contract, the verified electronic signature and the fingerprint image can be traced, the electronic contract is prevented from being stolen and tampered, and the signing safety of the electronic contract is improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In one embodiment, there is provided an electronic contract generating apparatus, which corresponds one-to-one to the electronic contract generating method in the above-described embodiment. As shown in fig. 7, the electronic contract generating apparatus includes a service receiving module 71, a template obtaining module 72, an information to be verified receiving module 73, a pre-stored information obtaining module 74, a comparing module 75, and a contract generating module 76. The functional modules are explained in detail as follows:
the service receiving module 71 is configured to receive a service request sent by a client, where the service request includes identity information of the client and a to-be-handled service identifier;
the template obtaining module 72 is configured to obtain a corresponding electronic contract template according to the to-be-handled service identifier, and return the electronic contract template to the client;
a to-be-verified information receiving module 73, configured to receive an electronic signature and a fingerprint image to be verified, where the electronic signature and the fingerprint image correspond to the electronic contract template sent by the client;
a pre-stored information obtaining module 74, configured to obtain, according to the identity information of the client, an electronic signature and a fingerprint image pre-stored by the client from a blockchain network;
a comparison module 75, configured to compare the electronic signature to be verified and the fingerprint image with a pre-stored electronic signature and a pre-stored fingerprint image, respectively;
and a contract generating module 76, configured to generate an electronic contract according to the electronic contract template and the verified electronic signature and fingerprint image if the electronic signature and fingerprint image to be verified are consistent with the pre-stored electronic signature and fingerprint image.
Optionally, the to-be-verified information receiving module 73 includes:
the receiving unit is used for receiving a plurality of encrypted data packets corresponding to the electronic signature to be verified and the fingerprint image, which are sent by the client according to the electronic contract template, wherein each encrypted data packet carries a serial number;
the decryption unit is used for generating an encryption/decryption key according to the identity information of the client and the electronic signature, and decrypting the encrypted data packet with the minimum serial number by adopting the encryption/decryption key to obtain the fingerprint image fragment with the minimum serial number and the encryption/decryption key of the next encrypted data packet;
the decryption unit is further configured to: decrypting the encrypted data packet with the minimum serial number in the rest encrypted data packets by adopting the encryption/decryption key of the next encrypted data packet, and repeating the steps until all encrypted data packets are decrypted to obtain fingerprint image fragments in all encrypted data packets;
and the splicing unit is used for splicing the fingerprint image fragments according to the sequence numbers from small to large to obtain the fingerprint image corresponding to the electronic contract template.
Optionally, the pre-stored information obtaining module 74 includes:
the first request unit is used for sending a first acquisition request to another server of the block chain network node where the server is located, wherein the first acquisition request comprises an electronic certificate of the server and identity information of a client, so that the other server performs authority verification according to the electronic certificate of the server, and searches an electronic signature and a fingerprint image prestored by the client according to the identity information of the client when the authority verification passes;
a first receiving unit, configured to receive a pre-stored electronic signature and fingerprint image returned by the other server according to the identity information of the client; and/or
A second request unit, configured to send a second acquisition request to the blockchain network, where the second acquisition request includes an electronic certificate of the server and identity information of the client, so that a node on the blockchain network performs consensus verification according to the electronic certificate of the server, and searches for an electronic signature and a fingerprint image pre-stored by the client according to the identity information of the client when the verification passes;
and the second receiving unit is used for receiving the prestored electronic signature and the fingerprint image which are returned by the blockchain network according to the identity information of the client.
Optionally, the apparatus further comprises:
a record uplink request module, configured to send a record uplink acquisition request to the blockchain network, where the record uplink acquisition request includes an electronic certificate of the server, so that a node on the blockchain network performs consensus verification on the electronic certificate, and when the verification passes, adds a block in a blockchain to store an acquisition record of the pre-stored electronic signature and fingerprint image;
and the recording uplink result acquisition module is used for receiving the recording uplink result acquired by the block chain network.
Optionally, the apparatus further comprises:
the contract uplink request module is used for sending an electronic contract uplink request to the blockchain network, wherein the electronic contract uplink request comprises an electronic certificate of a server, a verified electronic signature, a fingerprint image and an electronic contract, so that the nodes on the blockchain network carry out consensus verification on the electronic certificate of the server, and blocks are added to the blockchain to store the verified electronic signature, the verified fingerprint image and the electronic contract when the verification is passed;
and the contract uplink result receiving module is used for receiving the electronic contract uplink result returned by the block chain network.
For specific definition of the electronic contract generation apparatus, reference may be made to the above definition of the electronic contract generation method, which is not described herein again. The respective modules in the above-described electronic-contract generating apparatus may be entirely or partially implemented by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 8. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of generating an electronic contract.
In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
receiving a service request sent by a client, wherein the service request comprises identity information of the client and a service identifier to be handled;
acquiring an acquired electronic contract template according to the to-be-handled service identifier, and returning the electronic contract template to the client;
receiving an electronic signature and a fingerprint image to be verified corresponding to the electronic contract template sent by the client;
acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network according to the identity information of the client;
comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively;
and if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image, generating an electronic contract according to the electronic contract template and the verified electronic signature and the verified fingerprint image.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
receiving a service request sent by a client, wherein the service request comprises identity information of the client and a service identifier to be handled;
acquiring a corresponding electronic contract template according to the to-be-handled service identifier, and returning the electronic contract template to the client;
receiving an electronic signature and a fingerprint image to be verified corresponding to the electronic contract template sent by the client;
acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network according to the identity information of the client;
comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively;
and if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image, generating an electronic contract according to the electronic contract template and the verified electronic signature and the verified fingerprint image.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A method for generating an electronic contract, comprising:
receiving a service request sent by a client, wherein the service request comprises identity information of the client and a service identifier to be handled;
acquiring a corresponding electronic contract template according to the to-be-handled service identifier, and returning the electronic contract template to the client;
receiving an electronic signature and a fingerprint image to be verified corresponding to the electronic contract template sent by the client;
acquiring an electronic signature and a fingerprint image prestored by the client from a block chain network according to the identity information of the client;
comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively;
and if the electronic signature and the fingerprint image to be verified are consistent with the pre-stored electronic signature and the pre-stored fingerprint image, generating an electronic contract according to the electronic contract template and the verified electronic signature and the verified fingerprint image.
2. The method for generating an electronic contract according to claim 1, wherein the receiving the electronic signature to be verified and the fingerprint image corresponding to the electronic contract template sent by the client includes:
receiving a plurality of encrypted data packets corresponding to the electronic signature to be verified and the fingerprint image, which are sent by the client according to the electronic contract template, wherein each encrypted data packet carries a serial number;
generating an encryption/decryption key according to the identity information of the client and the electronic signature, and decrypting the encrypted data packet with the minimum serial number by adopting the encryption/decryption key to obtain the fingerprint image fragment with the minimum serial number and the encryption/decryption key of the next encrypted data packet;
decrypting the encrypted data packet with the minimum serial number in the rest encrypted data packets by adopting the encryption/decryption key of the next encrypted data packet, and repeating the steps until all encrypted data packets are decrypted to obtain fingerprint image fragments in all encrypted data packets;
and splicing the fingerprint image fragments according to the sequence numbers from small to large to obtain the fingerprint image corresponding to the electronic contract template.
3. The method for generating an electronic contract according to claim 1 or 2, wherein the obtaining an electronic signature and a fingerprint image prestored by the client from a blockchain network according to the identity information of the client comprises:
sending a first acquisition request to another server of the block chain network node where the server is located, wherein the first acquisition request comprises an electronic certificate of the server and identity information of a client, so that the other server performs authority verification according to the electronic certificate of the server, and searches an electronic signature and a fingerprint image prestored by the client according to the identity information of the client when the verification passes;
and receiving the pre-stored electronic signature and fingerprint image returned by the other server according to the identity information of the client.
4. The method for generating an electronic contract according to claim 1 or 2, wherein the obtaining an electronic signature and a fingerprint image prestored by the client from a blockchain network according to the identity information of the client comprises:
sending a second acquisition request to the blockchain network, wherein the second acquisition request comprises the electronic certificate of the server and the identity information of the client, so that nodes on the blockchain network perform consensus verification according to the electronic certificate of the server, and when the verification is passed, searching an electronic signature and a fingerprint image prestored by the client according to the identity information of the client;
and receiving the pre-stored electronic signature and fingerprint image returned by the blockchain network according to the identity information of the client.
5. The method for generating an electronic contract according to claim 1 or 2, wherein after acquiring the electronic signature and fingerprint image prestored by the client from a blockchain network according to the identity information of the client, the method further comprises:
sending an acquisition record uplink request to the blockchain network, wherein the acquisition record uplink request comprises an electronic certificate of the server, so that a node on the blockchain network performs consensus verification on the electronic certificate, and when the verification is passed, adding blocks in a blockchain to store the pre-stored acquisition records of the electronic signature and the fingerprint image;
and receiving the uplink obtaining record result returned by the block chain network.
6. The method of generating an electronic contract according to claim 1 or 2, wherein after generating an electronic contract from the electronic contract template and the verified electronic signature and fingerprint image, the method further comprises:
sending an electronic contract uplink request to the block chain network, wherein the electronic contract uplink request comprises an electronic certificate of a server, a verified electronic signature, a fingerprint image and an electronic contract, so that a node on the block chain network performs consensus verification on the electronic certificate of the server, and blocks are added to the block chain to store the verified electronic signature, the verified fingerprint image and the electronic contract when the verification is passed;
and receiving an uplink result of the electronic contract returned by the block chain network.
7. An electronic-contract generating apparatus, applied to a server, comprising:
the service receiving module is used for receiving a service request sent by a client, wherein the service request comprises the identity information of the client and a service identifier to be handled;
the template acquisition module is used for acquiring a corresponding electronic contract template according to the to-be-handled service identifier and returning the electronic contract template to the client;
the to-be-verified information receiving module is used for receiving the to-be-verified electronic signature and the fingerprint image corresponding to the electronic contract template sent by the client;
the pre-stored information acquisition module is used for acquiring an electronic signature and a fingerprint image which are pre-stored by the client from a block chain network according to the identity information of the client;
the comparison module is used for comparing the electronic signature and the fingerprint image to be verified with a pre-stored electronic signature and a pre-stored fingerprint image respectively;
and the contract generation module is used for generating an electronic contract according to the electronic contract template and the verified electronic signature and fingerprint image if the electronic signature and fingerprint image to be verified are consistent with the pre-stored electronic signature and fingerprint image.
8. The apparatus for generating an electronic contract according to claim 7, wherein the pre-stored information acquiring module includes:
the first request unit is used for sending a first acquisition request to another server of the block chain network node where the server is located, wherein the first acquisition request comprises an electronic certificate of the server and identity information of a client, so that the other server performs authority verification according to the electronic certificate of the server, and searches an electronic signature and a fingerprint image prestored by the client according to the identity information of the client when the authority verification passes;
a first receiving unit, configured to receive a pre-stored electronic signature and fingerprint image returned by the other server according to the identity information of the client; and/or
A second request unit, configured to send a second acquisition request to the blockchain network, where the second acquisition request includes an electronic certificate of the server and identity information of the client, so that a node on the blockchain network performs consensus verification according to the electronic certificate of the server, and searches for an electronic signature and a fingerprint image pre-stored by the client according to the identity information of the client when the verification passes;
and the second receiving unit is used for receiving the prestored electronic signature and the fingerprint image which are returned by the blockchain network according to the identity information of the client.
9. Computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method for generating an electronic contract according to any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for generating an electronic contract according to any one of claims 1 to 6.
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