CN110097367A - Electronic contract signature method, apparatus, equipment and storage medium based on block chain - Google Patents
Electronic contract signature method, apparatus, equipment and storage medium based on block chain Download PDFInfo
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- CN110097367A CN110097367A CN201910380983.9A CN201910380983A CN110097367A CN 110097367 A CN110097367 A CN 110097367A CN 201910380983 A CN201910380983 A CN 201910380983A CN 110097367 A CN110097367 A CN 110097367A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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Abstract
The present invention relates to a kind of, and the electronic contract based on block chain signs method, apparatus, equipment and storage medium, this method comprises: obtaining the contract information of each process during electronic contract signature, and, for each process dispensing transaction mark, wherein, the process includes contract start flow, contract revocation process, signature agent's setting procedure and contract signature process；For each process, the contract information and transaction ID packing are stored into the block of block chain；The corresponding transaction ID of each process is returned into user.On the one hand it realizes traceable to each process of contract signature and can not distort, the progress on the other hand also facilitating user to be signed according to transaction ID real-time query or monitoring contract.
Description
Technical field
The present invention relates to electronic contracts to sign technical field, and in particular to a kind of electronic contract signatory based on block chain
Method, device, equipment and storage medium.
Background technique
Electronic contract is also known as electronic business contract, and electronic contract can define are as follows: electronic contract is both sides or works as thing in many ways
It sets up, change, terminating property civil rights and obligations relationship by what electronic information network was reached as electrons between people
Agreement.Therefore, electronic contract is the contract electronically concluded, be primarily referred to as under network condition party in order to
It realizes certain purpose, passes through a kind of electricity for clear both sides' rights and obligations relationship that the forms such as electronic message, Email are signed
Sub-protocol.
Block chain is the new of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism and Encryption Algorithm
Type application model originates from bit coin, is the Floor layer Technology of bit coin, all information of transaction record can be packaged into one
It is stored in " block ", with the expansion of information interchange, block is connected with each other one by one, is formed block chain.
The signature of electronic contract based on block chain, can use block chain can not distort and trackability, make contract
Signature process and treaty content it is safer, however, the signature of the electronic contract in the prior art based on block chain, usually
The signature of contract carries out outside chain, and the contract finally signed is carried out cochain preservation, and still, this method only makees block chain
To deposit card platform after contract signature, it can not accomplish can not distorting and can be traced for each process during contract signature.
Summary of the invention
In view of this, a kind of electronic contract signature method, apparatus, equipment and storage medium based on block chain is provided, with
It solves each critical workflow during can not signing in the prior art to electronic contract and deposit card to guarantee above-mentioned each key
Process can not distort and retrospective problem.
The present invention adopts the following technical scheme:
In a first aspect, the embodiment of the invention provides a kind of, the electronic contract based on block chain signs method, this method packet
It includes:
The contract information of each process during electronic contract signature is obtained, and, it is each process dispensing transaction mark
Know, wherein the process includes contract start flow, contract revocation process, signature agent's setting procedure and contract signature stream
Journey；
For each process, the contract information and transaction ID packing are stored into the block of block chain；
The corresponding transaction ID of each process is returned into user.
Further, after the corresponding transaction ID of each process being returned to user, further includes:
The contract for obtaining user investigates request, wherein the contract verification request includes contract inquiry request and/or contract
Checking request includes the transaction ID of process to be investigated in contract verification request；
It is investigated and is requested according to the contract of user, and, matched process is requested with contract verification, investigates the electronics
Signature information in each process of contract signature, and the signature information is sent or is showed user.
Further, when the contract inquiry request is contract inquiry request, the signature information includes contract inquiry
Information；
Correspondingly, the signature information is sent or shows the corresponding user to include:
The corresponding contract query information of the contract inquiry request is sent to user, wherein the contract query information
It include: the signer's information or signature agent's information, signature deadline that signed is completed, and, signer or signature generation
Manage the digital signature of people；
When contract verification request is contract verification request, the signature information includes contract verification information；
Correspondingly, the signature information is sent or shows the corresponding user to include:
Corresponding contract verification information is requested to show user the contract verification, wherein the contract verification information
It include: contract time of signature, signer or the procuratorial digital signature of signature, contract essential information, signature agent's change letter
Breath, and, the transaction ID of each process.
Further, when the process is the contract start flow, which comprises
The contract essential information of the contract start flow during electronic contract signature is obtained, and, it is the conjunction
Contract start flow transaction ID is distributed with start flow, wherein the contract essential information includes contract promoter, contract hair
Play time, contract number and the corresponding original cryptographic Hash of original contract；
For the contract start flow, the contract essential information and the contract start flow transaction ID are packaged
It stores into the block of block chain；
The contract start flow transaction ID is returned into user.
Further, when the process is that the contract cancels process, which comprises
The contract for obtaining the contract revocation process during electronic contract signature cancels temporal information, and, for institute
State contract revocation process distribution contract revocation process transaction ID；
Process is cancelled for the contract, the contract is cancelled into temporal information and the contract cancels process transaction ID
Packing is stored into the block of block chain；
Contract revocation process transaction ID is returned into user.
Further, when the process is the contract agent setting procedure, which comprises
Obtain the signature agent information and signature of the contract agent setting procedure during electronic contract signature
Procuratorial change record information, and, the transaction of contract agent setting procedure is distributed for the contract agent setting procedure
Mark, wherein the agent of artificial Authorization of Signatories is acted on behalf of in the signature；
For the contract agent setting procedure, by the signature agent information, the procuratorial change record of signature
Information and contract agent setting procedure transaction ID packing are stored into the block of block chain；
The contract agent setting procedure transaction ID is returned into user.
Further, when the process is that the contract signs process, which comprises
The signer's information or signature agent's information of contract signature process during acquisition electronic contract signature,
Time of signature, the cryptographic Hash of the current contract that process is completed, signer or the procuratorial digital signature of signature, are the contract
It signs process distribution contract and signs process transaction ID, wherein the agent of artificial Authorization of Signatories is acted on behalf of in the signature；
Sign process for the contract, by signer's information or signature agent's information, the time of signature, it is current
Cryptographic Hash, signer or the procuratorial digital signature of signature and the contract for completing the contract of process sign process transaction ID
Packing is stored into the block of block chain；
Contract signature process transaction ID is returned into user；
Correspondingly, the generating process of digital signature includes:
According to the cryptographic Hash for the contract that process is currently completed and signer or the procuratorial private key of signature, using preparatory
The Digital Signature Algorithm of setting generates digital signature.
Second aspect, the embodiment of the invention provides a kind of, and the electronic contract based on block chain signs device, the device packet
It includes:
Acquisition of information and mark distribution module, for obtaining the contract letter of each process during electronic contract is signed
Breath, and, it is identified for each process dispensing transaction, wherein the process includes contract start flow, contract revocation process, label
It affixes one's name to agent's setting procedure and contract signs process；
Memory module stores the contract information and transaction ID packing to block chain for being directed to each process
In block；
Transaction ID return module, for the corresponding transaction ID of each process to be returned to user.
It further, further include request module, for the corresponding transaction ID of each process to be returned to use
After family, the contract verification request of user is obtained, wherein the contract verification request includes contract inquiry request and/or contract
Checking request includes the transaction ID of process to be investigated in contract verification request；Further include verification module, for according to
The contract at family investigates request, and, matched process is requested with contract verification, investigates each of the electronic contract signature
Signature information in process, and the signature information is sent or is showed user.
Further, when the contract inquiry request is contract inquiry request, the signature information includes contract inquiry
Information, correspondingly, the verification module is specifically used for:
When contract verification request is contract inquiry request, by the corresponding contract inquiry letter of the contract inquiry request
Breath is sent to user, wherein the contract query information includes: signer's information that signed is completed or signature agent's letter
Breath, signature deadline, and, signer or the procuratorial digital signature of signature；
When contract verification request is contract verification request, the signature information includes contract verification information, accordingly
, the verification module is specifically used for:
Corresponding contract verification information is requested to show user the contract verification, wherein the contract verification information
It include: contract time of signature, signer or the procuratorial digital signature of signature, contract essential information, signature agent's change letter
Breath, and, the transaction ID of each process.
Further, when the process is the contract start flow, described device includes:
Contract start flow acquisition of information and mark distribution module, for obtaining the conjunction during electronic contract is signed
With the contract essential information of start flow, and, contract start flow transaction ID is distributed for the contract start flow,
In, the contract essential information includes contract promoter, contract initiation time, contract number and the corresponding original Kazakhstan of original contract
Uncommon value；
Contract start flow memory module, for being directed to the contract start flow, by the contract essential information and institute
The packing of contract start flow transaction ID is stated to store into the block of block chain；
Contract start flow transaction ID return module, for the contract start flow transaction ID to be returned to use
Family.
Further, when the process is that the contract cancels process, described device includes:
Contract cancels procedure information and obtains and identify distribution module, for obtaining the conjunction during electronic contract is signed
Contract with revocation process cancels temporal information, and, contract, which is distributed, for contract revocation process cancels process transaction ID；
Contract cancels flow storage module, and for cancelling process for the contract, the contract is cancelled temporal information
It stores with contract revocation process transaction ID packing into the block of block chain；
Contract cancels process transaction ID return module, for contract revocation process transaction ID to be returned to use
Family.
Further, when the process is the contract agent setting procedure, described device includes:
Contract agent's setting procedure acquisition of information and mark distribution module, for obtain electronic contract signature during
The signature agent information and the procuratorial change record information of signature of the contract agent setting procedure, and, it is described
Contract agent's setting procedure distributes contract agent setting procedure transaction ID, wherein artificial signer is acted on behalf of in the signature
The agent of authorization；
Contract agent's setting procedure memory module, for being directed to the contract agent setting procedure, by the signature
Agent's information, sign procuratorial change record information and the contract agent setting procedure transaction ID packing store to
In the block of block chain；
Contract agent's setting procedure transaction ID return module is used for the contract agent setting procedure trading standard
Knowledge returns to user.
Further, when the process is that the contract signs process, described device includes:
Contract signs procedure information and obtains and identify distribution module, for obtaining the conjunction during electronic contract is signed
With signature process signer's information or signature agent's information, the time of signature, currently be completed process contract cryptographic Hash,
Signer or the procuratorial digital signature of signature sign process for the contract and distribute contract signature process transaction ID, wherein
The agent of artificial Authorization of Signatories is acted on behalf of in the signature；
Contract signs flow storage module, for signing process for the contract, by signer's information or signature
Agent's information, time of signature, the cryptographic Hash of the current contract that process is completed, signer or the procuratorial digital signature of signature
It stores with contract signature process transaction ID packing into the block of block chain；
Contract signs process transaction ID return module, for contract signature process transaction ID to be returned to use
Family；
Correspondingly, further including digital signature generation module, it is used for:
According to the cryptographic Hash for the contract that process is currently completed and signer or the procuratorial private key of signature, using preparatory
The Digital Signature Algorithm of setting generates digital signature.
The third aspect, the embodiment of the present application provide a kind of equipment, which includes:
Processor, and the memory being connected with the processor；
For the memory for storing computer program, the computer program is at least used to execute the embodiment of the present application the
Electronic contract described in one side based on block chain signs method；
The processor is for calling and executing the computer program in the memory.
Fourth aspect, the embodiment of the present application provide a kind of storage medium, and the storage medium is stored with computer program,
When the computer program is executed by processor, the electronic contract signature method based on block chain as described in relation to the first aspect is realized
In each step.
The invention adopts the above technical scheme, obtains the data information of each process during electronic contract signature, with
And record the transaction ID of each process；For each process, the data information and transaction ID packing are stored to block
In the block of chain, in this way, the data by each process during signing contract carry out cochain, block chain is utilized not
The characteristic that can be distorted and can not forge is realized to the data of each process traceable during contract signature and can not be usurped
Change；The corresponding transaction ID of each process is returned into user.If in this way, subsequent user have contract inquiry request or
When contract verification is requested, it can be inquired or be verified by transaction ID.Therefore, it from any time after contract initiation, uses
Family can inquire or verify the signature relevant information of each process according to the transaction ID of each process, on the one hand realize pairing
It can be traced and can not distort with each process of signature, on the other hand also facilitate user according to transaction ID real-time query or monitoring conjunction
With the progress of signature.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of electronic contract signature method based on block chain provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another electronic contract signature method based on block chain provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of electronic contract signature device based on block chain provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of equipment provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment
Fig. 1 is the flow chart that a kind of electronic contract based on block chain provided in an embodiment of the present invention signs method.With reference to
Fig. 1, this method can specifically include following steps:
The contract information of each process during S101, acquisition electronic contract signature, and, it is handed over for the distribution of each process
Easily mark, wherein the process includes contract start flow, contract revocation process, signature agent's setting procedure and contract label
Affix one's name to process.
Specifically, may include multiple and different processes, each process of timely learning during the entire process of contract signature
In key message, to instruct user to inquire or follow up in time the current state of contract and the state of each process.Firstly,
Obtaining the contract information of each process during electronic contract signature, wherein process is different, and corresponding contract information is different,
It for example, contract information may include contract essential information when process is contract start flow, such as may include that contract is initiated
People, contract initiate time, contract number and the corresponding original cryptographic Hash of original contract etc.；When process is that contract signs process,
Contract information may include contract essential information, such as may include that contract promoter, contract initiate time, contract number and to work as
Before be completed process contract cryptographic Hash, wherein it is corresponding after contract renewal that the cryptographic Hash of the contract of process, which is currently completed,
Current newest cryptographic Hash.Optionally, stamped signature or signature on contract each time can all cause contract cryptographic Hash to change,
Therefore, in contract signature process, it is applied to the cryptographic Hash that the contract of process is currently completed, that is, newest cryptographic Hash.?
In actual application process, process may include contract start flow, contract revocation process, signature agent's setting procedure and conjunction
With signature process, in addition, it can include contract administration of justice notarization process and contract judicial expertise process.
Illustratively, block catenary system is each process dispensing transaction mark, and the transaction ID and process correspond,
In, which is what block catenary system was randomly assigned according to each process.In a specific example, the transaction ID
It can be cochain transaction certificate, such as can be a transaction id (Identification Identity, unique identifier),
Illustratively, it can be the random string of 64 byte longs of hexadecimal format.
S102, it is directed to each process, the contract information and transaction ID packing is stored into the block of block chain.
Specifically, being directed to each process, contract information and transaction ID packing are stored into the block of block chain, with
For contract start flow, contract information at this time is contract essential information, and transaction ID is contract start flow transaction ID.
Wherein, storage operation is referred to as uplink operation, it should be noted that the specific implementation process for storing operation can refer to correlation
Block chain memory mechanism in technology, which is not described herein again.Each process carries out the operation in S102 respectively, that is, completing
Uplink operation.
S103, the corresponding transaction ID of each process is returned into user.
Specifically, the corresponding transaction ID of each process is returned to user, a kind of mode can be to be pushed away in the form of a message
It is sent on the mobile phone of user, can also be and stored on the computer for being directly displayed at configuration block catenary system, so that user exists
Carried out when needs using.It can apply in inquiry, verifying or monitor in the signature situation of contract or the scene of progress.
The invention adopts the above technical scheme, obtains the data information of each process during electronic contract signature, with
And record the transaction ID of each process；For each process, the data information and transaction ID packing are stored to block
In the block of chain, in this way, the data by each process during signing contract carry out cochain, block chain is utilized not
The characteristic that can be distorted and can not forge is realized to the data of each process traceable during contract signature and can not be usurped
Change；The corresponding transaction ID of each process is returned into user.If in this way, subsequent user have contract inquiry request or
When contract verification is requested, it can be inquired or be verified by transaction ID.Therefore, it from any time after contract initiation, uses
Family can inquire or verify the signature relevant information of each process according to the transaction ID of each process, on the one hand realize pairing
It can be traced and can not distort with each process of signature, on the other hand also facilitate user according to transaction ID real-time query or monitoring conjunction
With the progress of signature.
Fig. 2 is the process that another electronic contract based on block chain that further embodiment of this invention provides signs method
Figure, the present embodiment are realized on the basis of the above embodiments.With reference to Fig. 2, this method can specifically include following steps:
The contract information of each process during S201, acquisition electronic contract signature, and, it is handed over for the distribution of each process
Easily mark, wherein the process includes contract start flow, contract revocation process, signature agent's setting procedure and contract label
Affix one's name to process.
S202, it is directed to each process, the contract information and transaction ID packing is stored into the block of block chain.
S203, the corresponding transaction ID of each process is returned into user.
S204, the contract for obtaining user investigate request, wherein contract verification request include contract inquiry request and/
Or contract verification is requested, and includes the transaction ID of process to be investigated in the contract verification request.
Specifically, user's storage receives the transaction ID of each process, when user has the demand of verification contract, to area
Block catenary system sends contract verification request, has several individuals to complete signature for example, user wants to learn about in the contract, and,
There are several personal also unfinished signatures etc..In this way, the contract for obtaining user first investigates request, contract verification request may include closing
It is requested with inquiry request and/or contract verification.In addition, including the transaction ID of process to be investigated in contract verification request, as above
Example is stated, includes that contract signs process transaction ID in contract verification request if process to be checked is that contract signs process.
In a specific example, the generating process of contract verification request can be user and click in current display page
Button is requested, pops up a dialog box, " contract signs process transaction ID " is input to the dialog box by user, to generate contract
Verification request；Further, it is also possible to be to provide a request selecting page, directly looked into each process is corresponding in the selection page
Card request shows user, and user selects process to be checked, at this point, showing in the content of user may include corresponding process
Transaction ID.It should be noted that being used only to illustrate here, specific limit is not formed.
S205, it is investigated and is requested according to the contract of user, and, matched process is requested with contract verification, investigates institute
State the signature information in each process of electronic contract signature.
Illustratively, identify user contract verification request, with determine verification request in process to be investigated, with according to
Investigate the signature information for being somebody's turn to do process to be investigated of the transaction ID verification electronic contract signature of process.Wherein, signature information can be with
It is the content that user wants verification, for example, contract time of signature and signer etc..
S2061, when the contract verification request be contract inquiry request when, the signature information include contract inquiry believe
Breath, is sent to user for the corresponding contract query information of the contract inquiry request, wherein the contract query information includes:
The signer's information or signature agent's information, signature deadline that signed is completed, and, signer or signature are procuratorial
Digital signature.
Specifically, the corresponding contract of the contract inquiry request is inquired when contract verification request is contract inquiry request
Information is sent to user, for example, contract query information may include, signer's information or signature agent's letter that signed is completed
Breath, that is, signer A or signature agent B have completed to sign, then the information includes signer A or the letter for signing agent B
Breath, such as name；The deadline is signed, that is, when signer A signs, when is signed when signing agent B
Administration；Signer or the procuratorial digital signature of signature.Illustratively, digital signature is generated using the private key of user, user's
Public key can be used to carry out the signature sign test, and user oneself takes care of private key, and public key can arbitrarily be distributed in internet.This
Outside, it is the characteristics of digital signature, only others the number of segment word string that can not forge that could generate of the sender of information, this number of segment
Word string is also the valid certificates that information authenticity is sent to the sender of information simultaneously, be non-symetric key cryptography with
The application of digital digest technology.Digital signature is applied, the safety of contract signature process is improved.
S2062, when the contract verification request be contract verification request when, the signature information include contract verification believe
The contract verification is requested corresponding contract verification information to show user by breath, wherein the contract verification information includes:
Contract time of signature, signer or the procuratorial digital signature of signature, contract essential information, signature agent's modification information, with
And the transaction ID of each process.
Specifically, requesting corresponding contract verification to be believed contract verification when contract verification request is contract verification request
Breath shows user, wherein and contract verification information includes contract time of signature, signer or the procuratorial digital signature of signature,
Can refer to above-mentioned explanation, contract essential information to digital signature may include contract promoter, contract initiation time, contract volume
Number original cryptographic Hash corresponding with original contract；In addition, it can include signature agent's modification information, such as may include
XX XX month XX day is changed to signature agent B by signer A；In addition, it can include the transaction ID of each process.
In the embodiment of the present application, after by the contract information of each process and transaction ID cochain, transaction ID is returned
Back to user, the contract verification request of user is obtained, includes the transaction ID of process to be investigated in the contract verification request；Root
Request is investigated according to the contract of user, and, matched process is requested with contract verification, investigates the electronic contract signature
Signature information in each process.Signature information is showed into user, so that user obtains the information for needing to inquire or verify.
In order to keep the statement of technical solution apparent, below according to the difference of each process, successively to the electricity in the application
Sub- contract signature method is illustrated.
The first, when the described process is the contract start flow, the electronics based on block chain in the embodiment of the present application is closed
It include: the contract essential information of the contract start flow during obtaining electronic contract signature with signature method, and, it is
The contract start flow distributes contract start flow transaction ID, wherein the contract essential information include contract promoter,
Contract initiates time, contract number and the corresponding original cryptographic Hash of original contract；For the contract start flow, by the conjunction
It stores with essential information and contract start flow transaction ID packing into the block of block chain；The contract is initiated to flow
Journey transaction ID returns to user.
Specifically, what is got is the contract initiation during electronic contract signature when process is that contract signs process
People, contract initiate the cryptographic Hash of time, contract number and the current contract that process is completed, wherein each contract has uniquely
Number, by numbering the available information to certain contracts, this can be by customizing the people of the number according to certain rule
It then realizes, for example, contract award date etc. can be covered in number.In addition, being recorded as the contract hair of contract start flow distribution
Play process transaction ID.
Illustratively, Hash is that the input (be called and be preliminary mapping pre-image) of random length is become by hashing algorithm
Change the output of regular length into, which is exactly hashed value, also becomes cryptographic Hash.It is briefly exactly a kind of by random length
Message compression to a certain regular length eap-message digest function, different input hash are different output, for example, entire close
With a punctuation mark in text, is modified, obtained hashed value is also different.Therefore, during in order to guarantee that electronic contract is signed
Safety, the original cryptographic Hash of original contract will be obtained after original contract Hash, in this way, original cryptographic Hash and contract are sent out
Play people, contract initiates the time, contract number carries out uplink operation and the contract sent out that is, storing into the block of block chain
It plays process transaction ID and returns to user.
The second, when the described process is that the contract cancels process, the electronics based on block chain in the embodiment of the present application is closed
The contract for including: the contract revocation process during obtaining electronic contract signature with signature method cancels temporal information, with
And process is cancelled for the contract and distributes contract revocation process transaction ID；Process is cancelled for the contract, by the contract
Revocation temporal information and contract revocation process transaction ID packing are stored into the block of block chain；The contract is cancelled
Process transaction ID returns to user.
Specifically, contract revocation can be carried out before the signer of contract does not sign after contract is initiated, contract is obtained
Cancel temporal information, be recorded as contract revocation process transaction ID, by contract cancel process in contract revocation temporal information and
Contract cancels process transaction ID cochain, that is, storage is returned into the block of block chain, and by contract revocation process transaction ID
Back to user.
When third, the process are the contract agent setting procedure, in the embodiment of the present application based on block chain
Electronic contract signature method includes: to obtain the signature agency of the contract agent setting procedure during electronic contract signature
People's information and the procuratorial change record information of signature, and, contract agent is distributed for the contract agent setting procedure
Setting procedure transaction ID, wherein the agent of artificial Authorization of Signatories is acted on behalf of in the signature；It is set for the contract agent
Process is set, by the signature agent information, signs procuratorial change record information and the contract agent setting procedure
Transaction ID packing is stored into the block of block chain；The contract agent setting procedure transaction ID is returned into user.
Specifically, can be signed by contract signatory after contract is initiated, it can also be by signature agent that signer specifies
Signature, if needing to be preassigned by signing agent, that is, artificial signer is acted on behalf of in signature by signing agent sign
The agent of authorization.Illustratively, signature agent's information can be sent to block catenary system by signer, wherein signature generation
Managing people's information may include signing procuratorial digital signature etc.；Signing procuratorial change record information may include when changing
Between etc., that is, when being become signing agent from signer.It is recorded as the contract agent setting procedure distribution
Contract agent's setting procedure transaction ID, for contract agent's setting procedure, by signature agent's information, signature agent
Change record information and the contract agent setting procedure transaction ID packing store into the block of block chain；It will be described
Contract agent's setting procedure transaction ID returns to user.
4th, when the process is that the contract signs process, the electronics based on block chain in the embodiment of the present application is closed
It include: signer's information or the signature agency of the contract signature process during obtaining electronic contract signature with signature method
People's information, time of signature, the cryptographic Hash of the current contract that process is completed, signer or the procuratorial digital signature of signature are
The contract signature process distribution contract signs process transaction ID, wherein the generation of artificial Authorization of Signatories is acted on behalf of in the signature
Manage people；Process is signed for the contract, by signer's information or signature agent's information, the time of signature, current complete
It is beaten at the cryptographic Hash of the contract of process, signer or the procuratorial digital signature of signature and contract signature process transaction ID
Packet is stored into the block of block chain；Contract signature process transaction ID is returned into user.Correspondingly, digital signature
Generating process includes: to be adopted according to the cryptographic Hash for the contract that process is currently completed and signer or the procuratorial private key of signature
Digital signature is generated with preset Digital Signature Algorithm.
Specifically, the contract information of acquisition may include signer or the procuratorial number of signature in contract signature process
Word signature, time of signature, signer or the procuratorial private key of signature etc..Specifically, user right control system can use
Fabric-ca (Certification Authority) system, can also use other commercialization CA systems, and user passes through in electricity
After the signature platform real name registration of sub- contract, then the available unique CA certificate and private key for belonging to the user, and generate user's label
Chapter etc..In addition, being recorded as the contract signature process transaction ID of contract signature process distribution.By signer's information or signature
Agent's information, time of signature, the cryptographic Hash of the current contract that process is completed, signer or the procuratorial number label of signature
Name, and, the contract signature process transaction ID packing is stored into the block of block chain；Contract signature process is handed over
Easily mark returns to user.Illustratively, due to there is the update of process every time, the cryptographic Hash of contract can change, therefore,
In contract signature, according to the cryptographic Hash of the contract for the process currently completed, that is, the newest cryptographic Hash of contract, with
And according to signer or the procuratorial private key of signature, using ECDSA (Elliptic Curve Digital Signature
Algorithm, elliptic curve digital signature algorithm) digital signature is generated, further, it is also possible to using RSA rivest, shamir, adelman
Or the asymmetric arithmetic in national secret algorithm is digitally signed.Therefore, electronic contract sign when, using user private key into
Row digital signature, and digital signature storage is guaranteed into the non-repudiation that user signs a contract into block chain network.
5th, the electricity based on block chain when the process is the contract justice process, in the embodiment of the present application
Sub- contract signature method include: the contract promoter for obtaining the contract justice process during electronic contract signature,
Contract is initiated time, contract number, notarization title, the instrument of evidence, notarial office's title and notarization time, and, it is the contract
Justice process distributes contract justice process transaction ID；For the contract justice process, by the contract
Promoter, contract initiate time, contract number, notarization title, the instrument of evidence, notarial office's title and notarization time and the contract
The packing of justice process transaction ID is stored into the block of block chain；The contract justice process transaction ID is returned
Back to user.
Specifically, contract information includes contract promoter, the contract initiation time, closes when process is judicial notarization process
With number, notarization title, the instrument of evidence, notarial office's title and notarization time, wherein notarization title can be property notarization etc.,
The instrument of evidence can be electronic document existing for data mode, be also possible to paper document etc..It is judicial public to be recorded as the contract
Positive process distributes contract justice process transaction ID；For the contract justice process, by the contract promoter,
Contract initiates time, contract number, notarization title, the instrument of evidence, notarial office's title and notarization time and the contract is judicial public
Positive process transaction ID packing is stored into the block of block chain, and the contract justice process transaction ID is returned to use
Family.
6th, the electricity based on block chain when the process is the contract judicial expertise process, in the embodiment of the present application
Sub- contract signature method include: the contract promoter for obtaining the contract judicial expertise process during electronic contract signature,
Contract initiates time, contract number, judicial expertise title, the instrument of evidence, judicial expertise time and judicial expertise title, and,
Contract judicial expertise process transaction ID is distributed for the contract judicial expertise process；For the contract judicial expertise process,
The contract promoter, contract are initiated into time, contract number, judicial expertise title, the instrument of evidence, judicial expertise time and department
Method identification title and contract judicial expertise process transaction ID packing are stored into the block of block chain；By the contract department
Method identity process transaction ID returns to user.
Wherein, judicial expertise title for example can be property identification or custody identification etc.；The instrument of evidence can be data
Electronic document existing for form is also possible to paper document etc..Specifically, obtaining the contract during electronic contract signature
The contract promoter of judicial expertise process, contract initiate time, contract number, judicial expertise title, the instrument of evidence, judicial expertise
Time and judicial expertise title re-record and distribute contract judicial expertise process transaction ID for the contract judicial expertise process,
The contract promoter, contract are initiated into time, contract number, judicial expertise title, the instrument of evidence, judicial expertise time and department
Method identification title and contract judicial expertise process transaction ID packing are stored into the block of block chain；By the contract department
Method identity process transaction ID returns to user.
In addition, can directly be carried out by allied member's administration of justice node on judicial alliance's chain after the completion of contract signature
Administration of justice notarization, to improve the efficiency of contract.In a specific example, since judicial alliance's chain leads directly to Beijing internet law court
Judicial characteristic, the electronic contract fingerprint for signing completion is directly synchronized to internet law court and carries out depositing card, can when lawsuit occurs
To be used as evidence, wherein the contract fingerprint can be the cryptographic Hash of contract.Illustratively, judicial alliance's chain is a connection
Alliance's chain has many member nodes in ecology, for example including notarial office's node, such as upright notarial office, Hangzhou internet notarial office
Deng.
To sum up, the signature process of electronic contract carries out on chain, and the critical workflow during signing is stored in block sequence
In block network, can not distorting and can be traced for contract signature process ensure that.In addition, the technical solution of the application is applied, electricity
The each process of sub- contract signature process supports inquiry and verifying.
Fig. 3 is the structural representation that the present invention is a kind of electronic contract signature based on block chain that another embodiment provides
Figure, the device are adapted for carrying out a kind of electronic contract signature method based on block chain that the embodiment of the present invention is supplied to.Such as Fig. 3
Shown, which can specifically include:
Acquisition of information and mark distribution module 301, for obtaining the contract of each process during electronic contract is signed
Information, and, for each process dispensing transaction identify, wherein the process include contract start flow, contract revocation process,
It signs agent's setting procedure and contract signs process；
Memory module 302 stores the contract information and transaction ID packing to block chain for being directed to each process
Block in；
Transaction ID return module 303, for the corresponding transaction ID of each process to be returned to user.
It further, further include request module, for the corresponding transaction ID of each process to be returned to use
After family, the contract verification request of user is obtained, wherein the contract verification request includes contract inquiry request and/or contract
Checking request includes the transaction ID of process to be investigated in contract verification request；Further include verification module, for according to
The contract at family investigates request, and, matched process is requested with contract verification, investigates each of the electronic contract signature
Signature information in process, and the signature information is sent or is showed user.
Further, when the contract inquiry request is contract inquiry request, the signature information includes contract inquiry
Information, correspondingly, the verification module is specifically used for:
When contract verification request is contract inquiry request, by the corresponding contract inquiry letter of the contract inquiry request
Breath is sent to user, wherein the contract query information includes: signer's information that signed is completed or signature agent's letter
Breath, signature deadline, and, signer or the procuratorial digital signature of signature；
When contract verification request is contract verification request, the signature information includes contract verification information, accordingly
, the verification module is specifically used for:
Corresponding contract verification information is requested to show user the contract verification, wherein the contract verification information
It include: contract time of signature, signer or the procuratorial digital signature of signature, contract essential information, signature agent's change letter
Breath, and, the transaction ID of each process.
Further, when the process is the contract start flow, described device includes:
Contract start flow acquisition of information and mark distribution module, for obtaining the conjunction during electronic contract is signed
With the contract essential information of start flow, and, contract start flow transaction ID is distributed for the contract start flow,
In, the contract essential information includes contract promoter, contract initiation time, contract number and the corresponding original Kazakhstan of original contract
Uncommon value；
Contract start flow memory module, for being directed to the contract start flow, by the contract essential information and institute
The packing of contract start flow transaction ID is stated to store into the block of block chain；
Contract start flow transaction ID return module, for the contract start flow transaction ID to be returned to use
Family.
Further, when the process is that the contract cancels process, described device includes:
Contract cancels procedure information and obtains and identify distribution module, for obtaining the conjunction during electronic contract is signed
Contract with revocation process cancels temporal information, and, contract, which is distributed, for contract revocation process cancels process transaction ID；
Contract cancels flow storage module, and for cancelling process for the contract, the contract is cancelled temporal information
It stores with contract revocation process transaction ID packing into the block of block chain；
Contract cancels process transaction ID return module, for contract revocation process transaction ID to be returned to use
Family.
Further, when the process is the contract agent setting procedure, described device includes:
Contract agent's setting procedure acquisition of information and mark distribution module, for obtain electronic contract signature during
The signature agent information and the procuratorial change record information of signature of the contract agent setting procedure, and, it is described
Contract agent's setting procedure distributes contract agent setting procedure transaction ID, wherein artificial signer is acted on behalf of in the signature
The agent of authorization；
Contract agent's setting procedure memory module, for being directed to the contract agent setting procedure, by the signature
Agent's information, sign procuratorial change record information and the contract agent setting procedure transaction ID packing store to
In the block of block chain；
Contract agent's setting procedure transaction ID return module is used for the contract agent setting procedure trading standard
Knowledge returns to user.
Further, when the process is that the contract signs process, described device includes:
Contract signs procedure information and obtains and identify distribution module, for obtaining the conjunction during electronic contract is signed
With signature process signer's information or signature agent's information, the time of signature, currently be completed process contract cryptographic Hash,
Signer or the procuratorial digital signature of signature sign process for the contract and distribute contract signature process transaction ID, wherein
The agent of artificial Authorization of Signatories is acted on behalf of in the signature；
Contract signs flow storage module, for signing process for the contract, by signer's information or signature
Agent's information, time of signature, the cryptographic Hash of the current contract that process is completed, signer or the procuratorial digital signature of signature
It stores with contract signature process transaction ID packing into the block of block chain；
Contract signs process transaction ID return module, for contract signature process transaction ID to be returned to use
Family；
Correspondingly, further including digital signature generation module, it is used for:
According to the cryptographic Hash for the contract that process is currently completed and signer or the procuratorial private key of signature, using preparatory
The Digital Signature Algorithm of setting generates digital signature.
The invention adopts the above technical scheme, obtains the data information of each process during electronic contract signature, with
And record the transaction ID of each process；For each process, the data information and transaction ID packing are stored to block
In the block of chain, in this way, the data by each process during signing contract carry out cochain, block chain is utilized not
The characteristic that can be distorted and can not forge is realized to the data of each process traceable during contract signature and can not be usurped
Change；The corresponding transaction ID of each process is returned into user.If in this way, subsequent user have contract inquiry request or
When contract verification is requested, it can be inquired or be verified by transaction ID.Therefore, it from any time after contract initiation, uses
Family can inquire or verify the signature relevant information of each process according to the transaction ID of each process, on the one hand realize pairing
It can be traced and can not distort with each process of signature, on the other hand also facilitate user according to transaction ID real-time query or monitoring conjunction
With the progress of signature.
Any embodiment of that present invention can be performed in electronic contract signature device provided in an embodiment of the present invention based on block chain
The electronic contract based on block chain provided signs method, has the corresponding functional module of execution method and beneficial effect.
The embodiment of the present invention also provides a kind of equipment, referring to Fig. 4, Fig. 4 is a kind of structural schematic diagram of equipment, such as Fig. 4
Shown, which includes: processor 410, and the memory 420 being connected with processor 410；Memory 420 is for storing
Computer program, the computer program are at least used to execute the electronic contract signature based on block chain in the embodiment of the present invention
Method；Processor 410 is for calling and executing the computer program in the memory.In the embodiment of the present invention based on
The electronic contract signature method of block chain includes at least: the contract information of each process during electronic contract signature is obtained,
And identified for each process dispensing transaction, wherein the process includes contract start flow, contract revocation process, signature generation
It manages people's setting procedure and contract signs process；For each process, the contract information and transaction ID packing are stored to area
In the block of block chain；The corresponding transaction ID of each process is returned into user.
The embodiment of the present invention also provides a kind of storage medium, and the storage medium is stored with computer program, the calculating
When machine program is executed by processor, realize as each in the electronic contract signature method based on block chain in the embodiment of the present invention
Step.The electronic contract signature method based on block chain in the embodiment of the present invention includes at least: obtaining electronic contract and signed
The contract information of each process in journey, and, it is identified for each process dispensing transaction, wherein the process includes contract hair
It plays process, contract revocation process, signature agent's setting procedure and contract and signs process；For each process, by the contract
Information and transaction ID packing are stored into the block of block chain；The corresponding transaction ID of each process is returned into use
Family.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of electronic contract based on block chain signs method characterized by comprising
The contract information of each process during electronic contract signature is obtained, and, it is identified for each process dispensing transaction,
In, the process includes contract start flow, contract revocation process, signature agent's setting procedure and contract signature process；
For each process, the contract information and transaction ID packing are stored into the block of block chain；
The corresponding transaction ID of each process is returned into user.
2. the method according to claim 1, wherein the corresponding transaction ID of each process is returned to use
After family, further includes:
The contract for obtaining user investigates request, wherein the contract verification request includes contract inquiry request and/or contract verification
It requests, includes the transaction ID of process to be investigated in the contract verification request；
It is investigated and is requested according to the contract of user, and, matched process is requested with contract verification, investigates the electronic contract
Signature information in each process of signature, and the signature information is sent or is showed user.
3. according to the method described in claim 2, it is characterized in that, when the contract inquiry request be contract inquiry request when,
The signature information includes contract query information；
Correspondingly, the signature information is sent or shows the corresponding user to include:
The corresponding contract query information of the contract inquiry request is sent to user, wherein the contract query information includes:
The signer's information or signature agent's information, signature deadline that signed is completed, and, signer or signature are procuratorial
Digital signature；
When contract verification request is contract verification request, the signature information includes contract verification information；
Correspondingly, the signature information is sent or shows the corresponding user to include:
Corresponding contract verification information is requested to show user the contract verification, wherein the contract verification information includes:
Contract time of signature, signer or the procuratorial digital signature of signature, contract essential information, signature agent's modification information, with
And the transaction ID of each process.
4. the method according to claim 1, wherein the process be the contract start flow when, the side
Method includes:
The contract essential information of the contract start flow during electronic contract signature is obtained, and, it is sent out for the contract
It plays process and distributes contract start flow transaction ID, wherein when the contract essential information includes contract promoter, contract initiation
Between, contract number and the corresponding original cryptographic Hash of original contract；
For the contract start flow, the contract essential information and the contract start flow transaction ID are packaged storage
Into the block of block chain；
The contract start flow transaction ID is returned into user.
5. the method according to claim 1, wherein the process be the contract cancel process when, the side
Method includes:
The contract for obtaining the contract revocation process during electronic contract signature cancels temporal information, and, it is the conjunction
Process transaction ID is cancelled with revocation process distribution contract；
Process is cancelled for the contract, the contract is cancelled into temporal information and contract revocation process transaction ID is packaged
It stores into the block of block chain；
Contract revocation process transaction ID is returned into user.
6. the method according to claim 1, wherein the process be the contract agent setting procedure when,
The described method includes:
Obtain signature agent information and the signature agency of the contract agent setting procedure during electronic contract signature
The change record information of people, and, contract agent setting procedure transaction ID is distributed for the contract agent setting procedure,
Wherein, the agent of artificial Authorization of Signatories is acted on behalf of in the signature；
For the contract agent setting procedure, by the signature agent information, the procuratorial change record information of signature
It stores with contract agent setting procedure transaction ID packing into the block of block chain；
The contract agent setting procedure transaction ID is returned into user.
7. the method according to claim 1, wherein the process be the contract sign process when, the side
Method includes:
Obtain the signer's information or signature agent's information, signature of the contract signature process during electronic contract signature
Time, the cryptographic Hash of the current contract that process is completed, signer or the procuratorial digital signature of signature, are signed for the contract
Process distributes contract and signs process transaction ID, wherein the agent of artificial Authorization of Signatories is acted on behalf of in the signature；
Process is signed for the contract, by signer's information or signature agent's information, the time of signature, is currently completed
Cryptographic Hash, signer or the procuratorial digital signature of signature and contract signature process transaction ID of the contract of process are packaged
It stores into the block of block chain；
Contract signature process transaction ID is returned into user；
Correspondingly, the generating process of digital signature includes:
According to the cryptographic Hash for the contract that process is currently completed and signer or the procuratorial private key of signature, using presetting
Digital Signature Algorithm generate digital signature.
8. a kind of electronic contract based on block chain signs device characterized by comprising
Acquisition of information and mark distribution module, for obtaining the contract information of each process during electronic contract is signed, with
And identified for each process dispensing transaction, wherein the process includes contract start flow, contract revocation process, signature agency
People's setting procedure and contract sign process；
Memory module stores the contract information and transaction ID packing to the block of block chain for being directed to each process
In；
Transaction ID return module, for the corresponding transaction ID of each process to be returned to user.
9. a kind of equipment characterized by comprising
Processor, and the memory being connected with the processor；
The memory is at least used for perform claim and requires any one of 1-7 for storing computer program, the computer program
The electronic contract of the block chain signs method；
The processor is for calling and executing the computer program in the memory.
10. a kind of storage medium, which is characterized in that the storage medium is stored with computer program, the computer program quilt
When processor executes, each step in the electronic contract signature method such as the described in any item block chains of claim 1-7 is realized.
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| CN201910380983.9A CN110097367A (en) | 2019-05-08 | 2019-05-08 | Electronic contract signature method, apparatus, equipment and storage medium based on block chain |
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| CN201910380983.9A CN110097367A (en) | 2019-05-08 | 2019-05-08 | Electronic contract signature method, apparatus, equipment and storage medium based on block chain |
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