CN109462483A - Mail based on block chain deposits card method, apparatus, equipment and storage medium - Google Patents
Mail based on block chain deposits card method, apparatus, equipment and storage medium Download PDFInfo
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- CN109462483A CN109462483A CN201811423003.0A CN201811423003A CN109462483A CN 109462483 A CN109462483 A CN 109462483A CN 201811423003 A CN201811423003 A CN 201811423003A CN 109462483 A CN109462483 A CN 109462483A
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- China
- Prior art keywords
- block
- card
- cochain
- cryptographic hash
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/42—Mailbox-related aspects, e.g. synchronisation of mailboxes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The present invention relates to e-mail technique fields more particularly to a kind of mail based on block chain to deposit card method, apparatus, equipment and storage medium.It is requested this method comprises: client node receives the card of depositing that user sends, corresponding Email Information is obtained from e-mail server；Client node carries out cochain signature to Email Information, and generation deposits card block, cochain is carried out in block chain network；Notarization side's node obtains in block chain network and deposits card block, carries out notary signature to the Email Information and cochain signing messages deposited in card block, generates notarization block, and notarization block is linked on the block chain where depositing card block.Present invention introduces the block chain network of decentralization, card block is deposited into the Mail Contents for needing to deposit card generation and carries out cochain, and notarization link and notarization block cochain together is added, increases the public credibility of mail evidence.
Description
Technical field
The present invention relates to e-mail technique fields more particularly to a kind of mail based on block chain to deposit card method, dress
It sets, equipment and storage medium.
Background technique
Generation, storage and the transmitting of electronic evidence are necessarily dependent upon specific medium, there is corresponding broadcasting, display equipment
It could be perceived from storage state to by people, could be approved and be accepted and believed by court.And the system environments that electronic evidence is relied on
If there is a change, electronic evidence may also can not show or show the information of mistake, directly weaken the card of electronic evidence
Bright dynamics brings difficulty to the identification of evidence.In addition, the registration of electronic data, processing, transmission data information with electromagnetism
The form of concentration stores, and data are easy artificially to be changed, and the modification of this electronic message is simple, is not easy to leave a trace.Electricity
Subdata can make electronic evidence that can not reflect true situation with destructive feature.
Email has outside the characteristics of above-mentioned electronic evidence as one of electronic evidence, due to mail server
It is centralized server, the key messages such as sender, addressee, Mail Contents and the sending time of mail can be in mail
, further there is the risk that mail evidence is tampered in server side modification and deletion.Existing way is to Email as card
According to preceding, need to Email by notarization process just can guarantee its validity but, but notarization process is costly, notarization is flowed
Journey is cumbersome.
Summary of the invention
In view of this, it is necessary to be easy to there are problems that distorting risk as electronic evidence Email, provide one
Mail of the kind based on block chain deposits card method, apparatus, equipment and storage medium.
A kind of mail based on block chain deposits card method, comprising:
Client node receives the card of depositing that user sends and requests, described to deposit in card request comprising the electronics in need for depositing card
Mail ID, the client node obtain corresponding Email according to the e-mail ID from e-mail server
Information；
The client node uses the electronic signature of client, carries out cochain signature to the Email Information, will
The Email Information and the cochain signing messages generate deposit card block together, and cochain, shape are carried out in block chain network
The block chain of Cheng Xin；
Notarization side's node deposits card block described in obtaining in block chain network, using the electronic signature of notarization side, to described
The Email Information and cochain signing messages deposited in card block carry out notary signature, by the Email Information, cochain label
Name information, notary signature information and current time generate notarization block together, and notarization block is linked to and described deposits card block
On the block chain at place.
The card of depositing that the client node receives that user sends in one of the embodiments, is requested, described to deposit card request
In include the e-mail ID in need for depositing card, the client node is according to the e-mail ID, from E-mail service
Corresponding Email Information is obtained in device, comprising:
Mail web end or third party's mail plug-in unit receive the trigger request of user's triggering, from the mail server
The e-mail ID of current e-mail is obtained, the mail web end or third party's mail plug-in unit call api interface, to visitor
Card request is deposited in end node initiation in family, described to deposit in card request comprising the e-mail ID；
The client node deposits card request described in receiving, and from the e-mail server, obtains the electronics postal
The corresponding Email Information of part ID, the Email Information include sender, addressee, make a copy for people, it is close make a gift to someone, theme,
Mail Contents, post time and mail reception time.
The client node uses the electronic signature of client in one of the embodiments, to the electronics
E-mail messages carry out cochain signature, generate and deposit card block the Email Information and the cochain signing messages together,
Cochain is carried out in block chain network, forms new block chain, comprising:
Card block is deposited in creation, and it includes previous area in the block head that described deposit, which includes block head and block body in card block,
The cryptographic Hash variable of block, the cryptographic Hash variable of current block, timestamp variable include Email Information in the block body
Variable；
The Email Information is calculated by hash function and generates cryptographic Hash, cochain label are carried out to the cryptographic Hash
Name, the cryptographic Hash after cochain is signed are assigned to the cryptographic Hash variable of the current block, current time are assigned to institute
Timestamp variable is stated, the Email Information is assigned to the Email Information variable；
The cryptographic Hash that last-of-chain block is obtained from preset block chain list, by the cryptographic Hash assignment of the last-of-chain block
To the cryptographic Hash variable of the previous block, generates one and deposit card block；
The cryptographic Hash after cochain is signed is added in the block chain list, and card block will be deposited described in generation
It is defined as the last-of-chain block, the cochain of card block is deposited described in completion.
The client node uses the electronic signature of client in one of the embodiments, to the electronics
E-mail messages carry out cochain signature, generate and deposit card block the Email Information and the cochain signing messages together,
Cochain is carried out in block chain network, after forming new block chain, further includes:
The client node will deposit other sections demonstrate,proving block and being broadcast in the block chain network described in cochain
Point；
After depositing the cryptographic Hash of previous block demonstrate,proved in block, the cryptographic Hash of current block described in other nodes reading,
It is compared with the block chain list in own node, when the last-of-chain of the block chain list is the Hash of the previous block
When value, the cryptographic Hash of the current block is added into the block chain list, card block will be deposited described in generation and is defined as
The last-of-chain block completes the synchronization for depositing card data.
In one of the embodiments, notarization side's node obtained in block chain network described in deposit card block, use
The electronic signature of notarization side, before carrying out notary signature to the Email Information deposited in card block and cochain signing messages,
Further include:
The first Kazakhstan is calculated by hash function to the Email Information in the block body for depositing card block
Uncommon value；
It is signed to the cryptographic Hash after cochain signature by cochain and obtains the second cryptographic Hash after corresponding public key decryptions；
First cryptographic Hash and second cryptographic Hash are compared, judge whether equal, is thought if different
It is tampered, not notary signature, then carries out notary signature if they are the same.
It is described to the Email Information and cochain signing messages deposited in card block in one of the embodiments,
Notary signature is carried out, the Email Information, cochain signing messages, notary signature information and current time are generated together
Notarization block, and notarization block is linked on the block chain deposited where demonstrate,proving block, comprising:
Notarization block is created, includes block head and block body in the notarization block, includes previous area in the block head
The cryptographic Hash variable of block, the cryptographic Hash variable of current block, timestamp variable include Email Information in the block body
Variable；
Cryptographic Hash after notary signature is assigned to the cryptographic Hash variable of the current block, current time is assigned to
The Email Information evidence deposited in card block is assigned to the Email Information variable by the timestamp variable；
The cryptographic Hash that last-of-chain block is obtained from the list of block chain described in own node, by the Kazakhstan of the last-of-chain block
Uncommon value is assigned to the cryptographic Hash variable of the previous block, generates a notarization block；
The cryptographic Hash after notary signature is added in the block chain list, by the notarization block of generation
It is defined as the last-of-chain block, completes the cochain of the notarization block.
It is described to the Email Information and cochain signing messages deposited in card block in one of the embodiments,
Notary signature is carried out, the Email Information, cochain signing messages, notary signature information and current time are generated together
Notarization block, and after notarization block is linked on the block chain deposited where card block, further includes:
The notarization block of cochain is broadcast to other sections in the block chain network by notarization side's node
Point；
Other described nodes read the cryptographic Hash of previous block in the notarization block, after the cryptographic Hash of current block,
It is compared with the block chain list in own node, when the last-of-chain of the block chain list is the Hash of the previous block
When value, the cryptographic Hash of the current block is added into the block chain list, the notarization block of generation is defined as
The last-of-chain block, completes the synchronization of notarial data.
A kind of mail based on block chain deposits card device, comprising: card request module is deposited in reception, is set as client node
The card of depositing that user sends is received to request, it is described to deposit in card request comprising the e-mail ID in need for depositing card, client's end segment
Point obtains corresponding Email Information according to the e-mail ID from e-mail server；
Card block module is deposited in generation, the electronic signature that the client node uses client is set as, to the electronics
E-mail messages carry out cochain signature, generate and deposit card block the Email Information and the cochain signing messages together,
Cochain is carried out in block chain network, forms new block chain；
Generate notarization block module, be set as the side's of notarization node is obtained in block chain network described in deposit card block, use
The electronic signature of notarization side carries out notary signature to the Email Information deposited in card block and cochain signing messages, will
The Email Information, cochain signing messages, notary signature information and current time generate notarization block together, and will be public
Card block is linked on the block chain deposited where demonstrate,proving block.
A kind of computer equipment, including memory and processor are stored with computer-readable instruction in the memory,
When the computer-readable instruction is executed by the processor, so that the processor executes the above-mentioned mail based on block chain
The step of depositing card method.
A kind of storage medium being stored with computer-readable instruction, the computer-readable instruction is by one or more
When managing device execution, so that one or more processors execute the step of above-mentioned mail based on block chain deposits card method.
The above-mentioned mail based on block chain deposits card method, apparatus, computer equipment and storage medium, including client's end segment
Point receives the card of depositing that user sends and requests, described to deposit in card request comprising the e-mail ID in need for depositing card, the client
Node obtains corresponding Email Information according to the e-mail ID from e-mail server；Client's end segment
Point uses the electronic signature of client, cochain signature is carried out to the Email Information, by the Email Information and institute
It states cochain signing messages and generates together and deposit card block, cochain is carried out in block chain network, forms new block chain；Notarization side
Node deposits card block described in obtaining in block chain network, using the electronic signature of notarization side, to the electricity deposited in card block
Sub- e-mail messages and cochain signing messages carry out notary signature, and the Email Information, cochain signing messages, notarization are signed
Name information and current time generate notarization block together, and notarization block is linked to the block chain deposited where demonstrate,proving block
On.Present invention introduces the block chain networks of decentralization will need to deposit the mail of card based on the advantage of block chain decentralization
Content generation deposits card block and carries out cochain, and notarization link and notarization block cochain together is added, and increases the public letter of mail evidence
Power.The characteristics of due to block chain network, the multi-party node in network can participate in, equal, all blocks after cochain
All there is timestamp, mail evidence safety can not be distorted, be can be traced, therefore can be used as legal basis.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are general for this field
Logical technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to this hair
Bright limitation.
Fig. 1 deposits the flow chart of card method for the mail based on block chain in one embodiment of the invention；
Fig. 2 is a kind of flow chart of step S1 in one embodiment；
Fig. 3 is a kind of flow chart of step S2 in one embodiment；
Fig. 4 is a kind of flow chart of step S3 in one embodiment；
Fig. 5 is the structure chart that the mail based on block chain deposits card device in one embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments,
The present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.
Fig. 1 deposits the flow chart of card method for the mail based on block chain in one embodiment of the invention, as shown in Fig. 1,
A kind of mail based on block chain deposits card method, comprising the following steps:
Step S1, receive deposit card request: client node receive user send deposit card request, deposit card request in include
The e-mail ID in need for depositing card, client node obtain corresponding according to e-mail ID from e-mail server
Email Information.
Block chain network is a kind of system based on block chain technology, and also referred to as distributed account book technology is a kind of mutual
Networking data library technology.Its main feature is that it is decentralization, open and clear, allow each user to each may participate in maintenance data-base recording.Area
Block chain network is the new application of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm
Mode.Block chain network mainly includes data Layer, intelligent contract layer etc., wherein data Layer encapsulate bottom data block and
The basic datas such as relevant data encryption and timestamp and rudimentary algorithm, and bottom data block is presented with chain structure, i.e. area
Block chain is a kind of a kind of linked data structure for being sequentially in time combined into data block in such a way that sequence is connected, and
The distributed account book that can not be distorted He can not forge guaranteed in a manner of cryptography.
This step introduces block chain network, and client node can be multiple, any end registered in block chain network
End can be set as client node.Card trigger module is deposited in client node setting, evidence provider user needs to certain
One has sent or when received Email cochain, has triggered this and deposit card trigger module, client node receives what user sent
Deposit card request.Wherein, the triggering mode for depositing card trigger module can be there are many mode, and such as user is triggered by page end and use
It is triggered by third party's mail plug-in unit at family.
In one embodiment, step S1, as shown in Figure 2, comprising:
Step S101, trigger request: mail web end or third party's mail plug-in unit receive the trigger request that user triggers,
The e-mail ID of current e-mail is obtained from mail server, mail web end or third party's mail plug-in unit call API
Interface is deposited card request to client node initiation, is deposited in card request comprising e-mail ID.
Before user deposits card request by the triggering of mail web end, in the default triggering key in mail web end, triggering key is made
For there are trigger module, user chooses needs to deposit the Email and clicking trigger key of card, and mail web end calls API to connect
Mouthful, card request is deposited to client node initiation.
User can also be triggered by third party's mail plug-in unit, for example, outlook plug-in unit, Netease's lightning postal plug-in unit or
Foxmail plug-in unit etc., has additional triggering key in mail plug-in unit, and user chooses needs to deposit the Email of card and clicks touching
Key is sent out, third party's mail plug-in unit calls API to deposit card request to client node initiation.
User can also choose multiple Emails for needing to deposit card, mail web end or third party's mail plug-in unit simultaneously
Multiple e-mail IDs are obtained, and deposit card request to client node initiation, include multiple e-mail IDs in the request.
Step S102, obtain Email Information: card request is deposited in client node reception, from e-mail server,
Obtain the corresponding Email Information of e-mail ID, Email Information includes sender, addressee, makes a copy for people, close send
People, theme, Mail Contents, post time and mail reception time.
Client node is received to be deposited in card request, it is not necessary to and it include specific Email Information, but according to electronics postal
Part ID transfers corresponding Email Information from e-mail server, avoid data due to repeatedly send cause missing or
Distortion.When client node receives multiple e-mail IDs, multinomial Email is obtained by e-mail ID respectively and is believed
Breath, multinomial Email Information can be ranked up according to post time.
For the present embodiment by two different modes, card request is deposited in triggering, is met user and is used the difference of Email
Habit.Directly being obtained from e-mail server by client node for Email Information, avoids page end or third party
Mail plug-in unit is lacked when data are transmitted.
Step S2 is generated and deposited card block: client node uses the electronic signature of client, to Email Information into
Row cochain signature, Email Information and cochain signing messages are generated together and deposit card block, is carried out in block chain network
Chain forms new block chain.
When client node is registered in block chain website, block chain network is according to intelligent contract, using asymmetric encryption
Algorithm, generates a pair of of public key and private key, private key are sent to client node, is saved by client node, public key is specific to other
Node discloses, such as notarization side's node.Using private key to data encryption after, only corresponding public key could be decrypted.Client's end segment
Point is specifically signed electronically using client itself, i.e. private key, is carried out cochain signature to Email Information, is guaranteed electronics postal
The integrality of part information, cochain person identity reality and can not personation property.
In one embodiment, step S2, as shown in Figure 3, comprising:
Card block is deposited in step S201, creation: depositing includes block head and block body in card block, includes previous in block head
The cryptographic Hash variable of block, the cryptographic Hash variable of current block, timestamp variable become comprising Email Information in block body
Amount.
Creation deposit card block when, client node by the new_block method in preset Blockchain class into
Row creation.When creating new block by Blockchain class, an empty block chain list is also created, for storing
The information of the block of chain.
Step S202, cochain signature and assignment: Email Information being calculated by hash function and generates cryptographic Hash, right
Cryptographic Hash carries out cochain signature, and the cryptographic Hash after cochain is signed is assigned to the cryptographic Hash variable of current block, by current time
It is assigned to timestamp variable, Email Information is assigned to Email Information variable.
Hash function is based on hash algorithm, is the very basic also very important technology of information technology field, it can will appoint
The binary value (plaintext) of meaning length is mapped as the binary value (hash value) of shorter regular length, and different plaintexts
It is difficult to be mapped as identical hash value.Common hash function includes MD4 (Message Digest eap-message digest), MD5 (MD4
Modified version), SHA-1 etc..Cryptographic Hash is generated calculating using hash function Email Information, saves the complete of data
After property, also sign to the cryptographic Hash of generation, it is determined that the identity of cochain side.When current time is also assigned to by this step
Between stab variable, as time evidence, it is ensured that the integrality of mail evidence.
Step S203 is generated and is deposited card block: the cryptographic Hash of last-of-chain block is obtained from preset block chain list, by chain
The cryptographic Hash of tail region block is assigned to the cryptographic Hash variable of previous block, generates one and deposits card block.
The characteristics of due to block chain network, each block must include the cryptographic Hash of previous block, therefore this step is from certainly
Cryptographic Hash of the cryptographic Hash of last-of-chain block as previous block is obtained in the block chain list of body node.Wherein, last-of-chain block is
The newest block being added into block chain network.
Any node in block chain network is all preset with block chain list, and the block chain list of any node is all
Answer identical and data synchronous, the list of block chain can be as shown in table 1 below:
| The cryptographic Hash of previous block | The cryptographic Hash of current block | Timestamp |
| Cryptographic Hash X | Cryptographic Hash 1 | 201810281514 |
| Cryptographic Hash 1 | Cryptographic Hash 2 | 201810290957 |
Table 1
As shown in Table 1, the cryptographic Hash of the last-of-chain block in this step is cryptographic Hash 2, before cryptographic Hash 2 is assigned to
The cryptographic Hash variable of one block.
Step S204, more new data: the cryptographic Hash after cochain is signed is added in block chain list, by depositing for generation
Card block is defined as last-of-chain block, completes the cochain for depositing card block.
The cryptographic Hash of previous block is all newest is added into block chain network in block in order to guarantee each cochain
Rigid cochain is all deposited the corresponding information update of card block to block chain list after the completion of to each block cochain by block
In.Specifically, if the cryptographic Hash in step S202 after cochain signature is cryptographic Hash 3, after upper table 1 is updated, such as following table
Shown in 2:
| The cryptographic Hash of previous block | The cryptographic Hash of current block | Timestamp |
| Cryptographic Hash X | Cryptographic Hash 1 | 201810281514 |
| Cryptographic Hash 1 | Cryptographic Hash 2 | 201810290957 |
| Cryptographic Hash 2 | Cryptographic Hash 3 | 201810291519 |
Table 2
The present embodiment deposits card block by the new_block method creation in preset Blockchain class, and will deposit card
Block carries out cochain and is also updated to block chain list after the completion of cochain, ensure that the complete of data in block chain network
Whole property.
Newly-generated card block of depositing also is broadcast to by client node after the completion of demonstrate,proving block cochain to newly-generated depositing
Other nodes in block catenary system, for the synchronous Email Information of other nodes:
In one embodiment, the card block of depositing of cochain is broadcast to other in block chain network by client node
Node；After other nodes read the cryptographic Hash of previous block deposited in card block, the cryptographic Hash of current block, with own node
In block chain list be compared, when the last-of-chain of block chain list is the cryptographic Hash of previous block, by the Kazakhstan of current block
Uncommon value is added into block chain list, and the card block of depositing of generation is defined as last-of-chain block, completes the synchronization for depositing card data.
Client node is when being broadcasted, and using the networking mode based on P2P network, broadcasts one by one to neighbor node,
The card block of depositing of cochain is broadcast to other nodes.After other nodes receive broadcast, card block is deposited not to newly-generated
Verification process is carried out, but will directly deposit the corresponding information of card block and synchronize.Only specific node is such as notarized
Fang Jiedian just the work such as is further verified and is notarized to depositing card block.
The present embodiment uses broadcast mode, ensure that the high level of synchronization of block chain list all in block chain network, with
It can also be participated in together in this block chain convenient for other nodes.
Step S3, generate notarization block: notarization side's node obtains in block chain network and deposits card block, using notarization side
Electronic signature, to deposit card block in Email Information and cochain signing messages carry out notary signature, Email is believed
Breath, cochain signing messages, notary signature information and current time generate notarization block together, and notarization block is linked to and is deposited
On block chain where card block.
Notarization side's node in this step may be multiple, the notary organization with progress certification by a notary mobility
The terminal registered in block catenary system is set as the side's of notarization node.After notarization side's node can be broadcasted by client node,
Card block is deposited in acquisition.Card block can also will be deposited automatically and is broadcast to institute in block chain network after client node completes cochain
There are notarization side's node or any notarization side's node.
In one embodiment, step S3, as shown in Figure 4, comprising:
Step S301 creates notarization block: including block head and block body in notarization block, includes previous in block head
The cryptographic Hash variable of block, the cryptographic Hash variable of current block, timestamp variable become comprising Email Information in block body
Amount.
The creation process of the notarization block of this step is identical as step S201, is by preset Blockchain class
In new_block method create notarization block.
Step S302, notary signature and assignment: the cryptographic Hash that the cryptographic Hash after notary signature is assigned to current block is become
Amount, is assigned to timestamp variable for current time, and the Email Information evidence deposited in card block is assigned to Email Information
Variable.
Step S303, generate notarization block: from own node in the list of block chain obtain last-of-chain block cryptographic Hash,
The cryptographic Hash of last-of-chain block is assigned to the cryptographic Hash variable of previous block, generates a notarization block.
Step S304, more new data: the cryptographic Hash after notary signature is added in block chain list, by the public affairs of generation
Card block is defined as last-of-chain block, completes the cochain of notarization block.
If the cryptographic Hash in step S302 after notary signature is cryptographic Hash 4, after upper table 2 is updated, such as the following table 3
It is shown:
| The cryptographic Hash of previous block | The cryptographic Hash of current block | Timestamp |
| Cryptographic Hash X | Cryptographic Hash 1 | 201810281514 |
| Cryptographic Hash 1 | Cryptographic Hash 2 | 201810290957 |
| Cryptographic Hash 2 | Cryptographic Hash 3 | 201810291519 |
| Cryptographic Hash 3 | Cryptographic Hash 4 | 201810291521 |
Table 3
This step by notarization side node to cochain deposit card block progress notary signature after, generation notarization block, then
Notarization link and block chain network are combined by the mode of this cochain, increase the public credibility of mail evidence, the public affairs of cochain
Card block can be used as legal basis, can be obtained and be checked by any node in block chain network at any time, avoid in mail
Hold the change and deletion with the mail time, reduces the risk that mail evidence is tampered.
In one embodiment, before step S3, further includes: notarization side's node is to the electronics in the block body for depositing card block
The first cryptographic Hash is calculated by hash function in e-mail messages；It is signed and is corresponded to by cochain to the cryptographic Hash after cochain signature
Public key decryptions after obtain the second cryptographic Hash；First cryptographic Hash and the second cryptographic Hash are compared, judge whether it is equal, if
Different then think to be tampered, not notary signature, then carries out notary signature if they are the same.
Notarization side's node is from public key when obtaining client node registration in block chain network in block chain network, with this
The decryption of embodiment.Whether thus verifying through this embodiment can not only determine and deposit the client node generation of card block
, it can also determine whether Email Information is tampered.Only confirm that client node identity and Email Information are consistent
In the case where, notarization side's node just carries out just signature.
In one embodiment, after step S3, further includes: the notarization block of cochain is broadcast to area by notarization side's node
Other nodes in block chain network；Other nodes read the Hash of the cryptographic Hash of the previous block in notarization block, current block
It after value, is compared with the block chain list in own node, when the last-of-chain of block chain list is the cryptographic Hash of previous block
When, the cryptographic Hash of current block is added into block chain list, the notarization block of generation is defined as last-of-chain block, is completed
The synchronization of notarial data.
The present embodiment can also use the networking mode based on P2P network, one by one to neighbor node when being broadcasted
Broadcast.After other nodes receive broadcast, to newly-generated notarization block without carrying out verification process, but directly will notarization
The corresponding information of block synchronizes.The present embodiment ensure that block chain all in block chain network by way of broadcast
The high level of synchronization of list.
The embodiment of the present invention deposits card method based on the mail of block chain, and mail is deposited card and is combined with block chain network, more
A client node participates in generating jointly deposits card block, and multiple notarization side's nodes participate in generating work block jointly, by multi-party
It safeguards the mode that participates in jointly, ensure that the integrality of Email Information, can not distort and trackability, avoid mail
The risk that content is tampered, Email Information can be used as legal basis, check for other nodes.
In one embodiment it is proposed that a kind of mail based on block chain deposits card device, as shown in figure 5, including as follows
Module:
Card request module is deposited in reception, is set as the card of depositing that client node reception user sends and is requested, the card of depositing is requested
In include the e-mail ID in need for depositing card, the client node is according to the e-mail ID, from E-mail service
Corresponding Email Information is obtained in device；
Card block module is deposited in generation, the electronic signature that the client node uses client is set as, to the electronics
E-mail messages carry out cochain signature, generate and deposit card block the Email Information and the cochain signing messages together,
Cochain is carried out in block chain network, forms new block chain；
Generate notarization block module, be set as the side's of notarization node is obtained in block chain network described in deposit card block, use
The electronic signature of notarization side carries out notary signature to the Email Information deposited in card block and cochain signing messages, will
The Email Information, cochain signing messages, notary signature information and current time generate notarization block together, and will be public
Card block is linked on the block chain deposited where demonstrate,proving block.
In one embodiment it is proposed that a kind of computer equipment, including memory and processor, stored in memory
There is computer-readable instruction, when computer-readable instruction is executed by processor, when so that processor executing computer-readable instruction
Realize that the mail based on block chain of the various embodiments described above deposits the step in card method.
In one embodiment it is proposed that a kind of storage medium for being stored with computer-readable instruction, computer-readable finger
When order is executed by one or more processors so that one or more processors execute the various embodiments described above based on block chain
Mail deposit the step in card method.Wherein, storage medium can be non-volatile memory medium.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Some exemplary embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but
It cannot be construed as a limitation to the scope of the present invention.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the present invention
Protection scope.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of mail based on block chain deposits card method characterized by comprising
Client node receives the card of depositing that user sends and requests, described to deposit in card request comprising the Email in need for depositing card
ID, the client node obtain corresponding Email Information according to the e-mail ID from e-mail server；
The client node uses the electronic signature of client, carries out cochain signature to the Email Information, will be described
Email Information and the cochain signing messages generate deposit card block together, and cochain is carried out in block chain network, are formed new
Block chain；
Notarization side's node deposits card block described in obtaining in block chain network, using the electronic signature of notarization side, deposits card to described
Email Information and cochain signing messages in block carry out notary signature, by the Email Information, cochain A.L.S.
Breath, notary signature information and current time generate notarization block together, and notarization block is linked to described deposit and demonstrate,proves block place
Block chain on.
2. the mail according to claim 1 based on block chain deposits card method, which is characterized in that the client node connects
The card of depositing that user sends is received to request, it is described to deposit in card request comprising the e-mail ID in need for depositing card, the client node
According to the e-mail ID, corresponding Email Information is obtained from e-mail server, comprising:
Mail web end or third party's mail plug-in unit receive the trigger request of user's triggering, obtain and work as from the mail server
The e-mail ID of preceding Email, the mail web end or third party's mail plug-in unit call api interface, to client node
Card request is deposited in initiation, described to deposit in card request comprising the e-mail ID；
The client node deposits card request described in receiving, and from the e-mail server, obtains the e-mail ID
Corresponding Email Information, the Email Information include sender, addressee, make a copy for people, it is close make a gift to someone, theme, mail
Content, post time and mail reception time.
3. the mail according to claim 1 based on block chain deposits card method, which is characterized in that client's end segment
Point uses the electronic signature of client, cochain signature is carried out to the Email Information, by the Email Information and institute
It states cochain signing messages and generates together and deposit card block, cochain is carried out in block chain network, forms new block chain, comprising:
Card block is deposited in creation, and it includes previous block in the block head that described deposit, which includes block head and block body in card block,
Cryptographic Hash variable, the cryptographic Hash variable of current block, timestamp variable include Email Information variable in the block body；
The Email Information is calculated by hash function and generates cryptographic Hash, cochain signature is carried out to the cryptographic Hash, it will
The cryptographic Hash after cochain signature is assigned to the cryptographic Hash variable of the current block, and current time is assigned to the time
Variable is stabbed, the Email Information is assigned to the Email Information variable；
The cryptographic Hash of the last-of-chain block is assigned to described by the cryptographic Hash that last-of-chain block is obtained from preset block chain list
The cryptographic Hash variable of previous block generates one and deposits card block；
The cryptographic Hash after cochain is signed is added in the block chain list, and card block will be deposited described in generation and is defined as
The last-of-chain block deposits the cochain of card block described in completion.
4. the mail according to claim 1 based on block chain deposits card method, which is characterized in that client's end segment
Point uses the electronic signature of client, cochain signature is carried out to the Email Information, by the Email Information and institute
It states cochain signing messages and generates together and deposit card block, cochain is carried out in block chain network, after forming new block chain, is also wrapped
It includes:
The client node will deposit other nodes demonstrate,proving block and being broadcast in the block chain network described in cochain；
After depositing the cryptographic Hash of previous block demonstrate,proved in block, the cryptographic Hash of current block described in other nodes reading, with oneself
Block chain list in body node is compared, when the last-of-chain of the block chain list is the cryptographic Hash of the previous block,
The cryptographic Hash of the current block is added into the block chain list, card block will be deposited described in generation and is defined as the chain
Tail region block completes the synchronization for depositing card data.
5. the mail according to claim 1 based on block chain deposits card method, which is characterized in that notarization side's node exists
Card block is deposited described in obtaining in block chain network, using the electronic signature of notarization side, to the Email deposited in card block
Before information and cochain signing messages carry out notary signature, further includes:
The first cryptographic Hash is calculated by hash function to the Email Information in the block body for depositing card block；
It is signed to the cryptographic Hash after cochain signature by cochain and obtains the second cryptographic Hash after corresponding public key decryptions；
First cryptographic Hash and second cryptographic Hash are compared, judge whether equal, thinks to be usurped if different
Change, not notary signature, then carries out notary signature if they are the same.
6. the mail according to claim 1 based on block chain deposits card method, which is characterized in that described to the area Cun Zheng
Email Information in block and cochain signing messages carry out notary signature, by the Email Information, cochain signing messages,
Notary signature information and current time generate notarization block together, and notarization block is linked to the area deposited where demonstrate,proving block
On block chain, comprising:
Notarization block is created, includes block head and block body in the notarization block, includes previous block in the block head
Cryptographic Hash variable, the cryptographic Hash variable of current block, timestamp variable include Email Information variable in the block body；
Cryptographic Hash after notary signature is assigned to the cryptographic Hash variable of the current block, when current time is assigned to described
Between stab variable, by the Email Information deposited in card block according to being assigned to the Email Information variable；
The cryptographic Hash that last-of-chain block is obtained from the list of block chain described in own node, the cryptographic Hash of the last-of-chain block is assigned
It is worth to the cryptographic Hash variable of the previous block, generates a notarization block；
The cryptographic Hash after notary signature is added in the block chain list, the notarization block of generation is defined as
The last-of-chain block completes the cochain of the notarization block.
7. the mail according to claim 1 based on block chain deposits card method, which is characterized in that described to the area Cun Zheng
Email Information in block and cochain signing messages carry out notary signature, by the Email Information, cochain signing messages,
Notary signature information and current time generate notarization block together, and notarization block is linked to the area deposited where demonstrate,proving block
After on block chain, further includes:
The notarization block of cochain is broadcast to other nodes in the block chain network by notarization side's node；
Other described nodes read the cryptographic Hash of previous block in the notarization block, after the cryptographic Hash of current block, with from
Block chain list in body node is compared, when the last-of-chain of the block chain list is the cryptographic Hash of the previous block,
The cryptographic Hash of the current block is added into the block chain list, the notarization block of generation is defined as the chain
Tail region block completes the synchronization of notarial data.
8. a kind of mail based on block chain deposits card device characterized by comprising
Card request module is deposited in reception, be set as client node receive user send deposit card request, it is described deposit card request in wrap
Containing the e-mail ID in need for depositing card, the client node is according to the e-mail ID, from e-mail server
Obtain corresponding Email Information；
Card block module is deposited in generation, the electronic signature that the client node uses client is set as, to the Email
Information carries out cochain signature, generates and deposits card block the Email Information and the cochain signing messages together, in block
Cochain is carried out in chain network, forms new block chain；
Generate notarization block module, be set as the side's of notarization node obtained in block chain network described in deposit card block, using notarization
The electronic signature of side carries out notary signature to the Email Information deposited in card block and cochain signing messages, will be described
Email Information, cochain signing messages, notary signature information and current time generate notarization block together, and by notarization block
It is linked on the block chain deposited where demonstrate,proving block.
9. a kind of computer equipment, including memory and processor, it is stored with computer-readable instruction in the memory, it is described
When computer-readable instruction is executed by the processor, so that the processor executes such as any one of claims 1 to 7 right
It is required that the step of mail based on block chain deposits card method.
10. a kind of storage medium for being stored with computer-readable instruction, the computer-readable instruction is handled by one or more
When device executes, so that one or more processors are executed is based on block chain as described in any one of claims 1 to 7 claim
Mail the step of depositing card method.
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| CN201811423003.0A CN109462483B (en) | 2018-11-27 | 2018-11-27 | Block chain based mail evidence storage method, device, equipment and storage medium |
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| CN201811423003.0A CN109462483B (en) | 2018-11-27 | 2018-11-27 | Block chain based mail evidence storage method, device, equipment and storage medium |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041066A1 (en) * | 2016-08-29 | 2018-03-08 | 北京瑞卓喜投科技发展有限公司 | Data processing method, apparatus and system based on block chain technology |
| CN107888375A (en) * | 2017-11-08 | 2018-04-06 | 深圳市携网科技有限公司 | A kind of electronic evidence safety system and method based on block chain technology |
| CN108717431A (en) * | 2018-05-11 | 2018-10-30 | 中国科学院软件研究所 | A kind of electronic evidence based on block chain deposits card, verification method and system |
| CN108833111A (en) * | 2018-05-29 | 2018-11-16 | 浪潮软件集团有限公司 | Block chain-based file evidence storage and identification realization method |
-
2018
- 2018-11-27 CN CN201811423003.0A patent/CN109462483B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018041066A1 (en) * | 2016-08-29 | 2018-03-08 | 北京瑞卓喜投科技发展有限公司 | Data processing method, apparatus and system based on block chain technology |
| CN107888375A (en) * | 2017-11-08 | 2018-04-06 | 深圳市携网科技有限公司 | A kind of electronic evidence safety system and method based on block chain technology |
| CN108717431A (en) * | 2018-05-11 | 2018-10-30 | 中国科学院软件研究所 | A kind of electronic evidence based on block chain deposits card, verification method and system |
| CN108833111A (en) * | 2018-05-29 | 2018-11-16 | 浪潮软件集团有限公司 | Block chain-based file evidence storage and identification realization method |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109918874A (en) * | 2019-03-14 | 2019-06-21 | 上海优扬新媒信息技术有限公司 | A kind of material object information storage means and device, information searching method in kind and device |
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