CN109767220A - Method of commerce based on block chain and the transaction system based on block chain - Google Patents
Method of commerce based on block chain and the transaction system based on block chain Download PDFInfo
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Abstract
The invention belongs to block chain technical fields, are related to the method for commerce based on block chain and the transaction system based on block chain.This method comprises: each node will be broadcast in block chain after oneself block chain mark and private key signature of the public key using oneself；Certain transaction node initiates a transaction, using the cryptographic Hash of the cipher key calculation transaction, and will be broadcast in block chain after transaction message and the private key signature of the first cryptographic Hash using oneself；Other nodes use the cryptographic Hash for calculating the transaction again with the shared session key of transaction node, it is whether identical as cryptographic Hash again to verify first cryptographic Hash, and will be broadcast in block chain after private key signature of the verification result using oneself；Accounting nodes within the scope of the preset time threshold that transaction node initiates transaction, statistical testing of business cycles result by whether accumulated quantity, according to verification result be by accumulated quantity build a consensus mechanism.The efficiency of transmission of block chain is greatly improved in the size of its communications burden that can reduce block chain and block.
Description
Technical field
The invention belongs to block chain technical fields, and in particular to the method for commerce based on block chain and the friendship based on block chain
Easy system.
Background technique
The basic thought of block chain (Blockchain) is: by the public account book established on one group of internet, by network
In all user book keeping operation and core account on account book jointly, come guarantee information authenticity and can not tamper.As its name suggests,
" block " chain is because the structure of its storing data is by " memory block " forms a chain, each block one by one on network
In include information interchange data whole in network in certain time.As time goes by, this chain can constantly increase.Block chain
It is substantially the database of a decentralization.For narrow sense, block chain is one kind sequentially in time by data block with suitable
A kind of linked data structure that the connected mode of sequence is combined into, and can not distorting of being guaranteed in a manner of cryptography and can not forge
Distributed account book.Broadly, block chain technology be verified using block linked data structure with storing data, utilize distribution
Node know together algorithm generate and more new data, guarantee in the way of cryptography data transmission and access safety, using by
The intelligent contract of automatized script code composition is programmed and the completely new distributed basis framework of one kind of operation data and is calculated
Normal form.
Currently, block chain generally fights for book keeping operation power in such a way that miner digs mine, this is being currently most fair mode.Mine
Work is to obtain the continuous investment resource of digging mine reward to carry out digging mine, although this mechanism guarantees the peace of block chain to a certain extent
Full property and sustainable development, but the resource for investment of staying away from work without leave at the same time is more and more, and it is more next to expend a large amount of energy investment income ratio
It is lower.Moreover, a large amount of methods for calculating power to fight for book keeping operation power of this consuming, due to current block chain public key and signature length too
It is long, it will increase the communications burden of block chain and the size of block, greatly reduce the efficiency of transmission of block chain.
Summary of the invention
It is a kind of based on block chain the technical problem to be solved by the present invention is to provide for above-mentioned deficiency in the prior art
Method of commerce and transaction system based on block chain reduce the communications burden of block chain and the size of block, block are greatly improved
The efficiency of transmission of chain.
Solving technical solution used by present invention problem is the method for commerce based on block chain comprising step
It is rapid:
Each node will be broadcast in the block chain after oneself block chain mark and private key signature of the public key using oneself；
Certain transaction node initiates a transaction, using the cryptographic Hash of the cipher key calculation transaction, and by transaction message and is somebody's turn to do
It is broadcast in the block chain after first private key signature of the cryptographic Hash using oneself；
Other nodes use the cryptographic Hash for calculating the transaction again with the shared session key of the transaction node, verifying
Whether first cryptographic Hash and cryptographic Hash again are identical, and will be broadcast to the block after private key signature of the verification result using oneself
In chain；
It is logical to count the verification result within the scope of the preset time threshold that the transaction node initiates transaction for accounting nodes
Accumulated quantity whether mistake, and according to the verification result be by accumulated quantity build a consensus mechanism.
Preferably, before certain transaction node initiates a transaction, also there is step:
Any pair of node in the block chain carries out key exchange by way of non-block chain network, establishes this to section
Between point and this is only limitted to the shared session key between node；
Include:
First node is sent in the block chain carries out communication request with second node, uses the public affairs of the second node
Key encryption obtains first and shakes hands key；
It include the block chain mark of the second node and the non-block of the first node to block chain broadcast
The broadcast message that the source identification of chain, block chain mark and public key, described first shake hands key, described in the broadcast message use
The private key of first node is signed；
The second node receives the broadcast message of the first node, according to the non-area of the first node
The source identification of block chain is sent by the corresponding non-block chain network, Xiang Suoshu first node using the first node
Second after public key encryption shakes hands key；
The first node is received described second by way of the non-block chain network and shaken hands key, using oneself
The described second key of shaking hands is decrypted in private key；
The second node is received described first by way of the block chain network and shaken hands key, using the private of oneself
The described first key of shaking hands is decrypted in key；
The first node is shaken hands key according to described second, according to prespecified algorithm obtain the first node and
Between the second node and this is only limitted to the first session key between node；
And the second node is shaken hands key according to described first, obtains described first according to prespecified algorithm
Between node and the second node and this is only limitted to the second session key between node.
Preferably, the source identification of the non-block chain include the corresponding terminal of the first node phone number,
In the IP address in INTERNET network, at least one in email address；
Correspondingly, the mode of the non-block chain network includes sending short message by mobile switch net or dialing voice electricity
The mode of words, by way of IP address P2P is sent, email address send E-mail address by way of.
Preferably, initiate a transaction in certain transaction node, using the cipher key calculation transaction cryptographic Hash the step of
In,
The transaction node uses the cryptographic Hash of oneself and the shared session-key computation transaction of other nodes；
Alternatively, the cryptographic Hash of the transaction node using the cipher key calculation transaction generated at random.
Preferably, according to the verification result be by accumulated quantity build a consensus mechanism the step of in, comprising:
When the verification result be by accumulated quantity reach default common recognition threshold percentage when, by the transaction message and
All Message Records being verified within the scope of the preset time threshold are in block chain account book；
Otherwise, the transaction message is recorded in block chain account book by refusal.
A kind of transaction system based on block chain comprising broadcast module, transaction verification module, is total to transaction computing module
Module is established in knowledge, in which:
The broadcast module is configured for the private key signature that oneself block chain mark and public key are used oneself by each node
After be broadcast in the block chain；
The transaction computing module is configured for certain transaction node and initiates a transaction, using the cipher key calculation transaction
Cryptographic Hash, and transaction message and the first cryptographic Hash are broadcast to using after oneself private key signature by the broadcast module
In the block chain；
The transaction verification module is configured for other nodes and uses with the shared session key of the transaction node again
It is whether identical as cryptographic Hash again to verify first cryptographic Hash, and verification result is used oneself for the cryptographic Hash for calculating the transaction
Private key signature after be broadcast in the block chain by the broadcast module；
The common recognition establishes module, is configured for the preset time threshold that accounting nodes initiate transaction in the transaction node
In range, count the verification result by whether accumulated quantity, and according to the verification result be by accumulated quantity
It builds a consensus mechanism.
It preferably, further include shared Session key establishment module, the shared Session key establishment module includes first
Encryption unit, the second encryption unit, the first decryption unit, the second decryption unit, the first session password unit, the second session password
Unit, in which:
First encryption unit, is configured to send in the block chain in first node and is communicated with second node
When request, first is obtained using the public key encryption of the second node and is shaken hands key；
The broadcast module, be configured to the block chain broadcast include the second node block chain mark and
The broadcast message that the source identification of the non-block chain of the first node, block chain mark and public key, described first shake hands key,
The broadcast message is signed using the private key of the first node；
Second encryption unit is configured to receive the broadcast message of the first node in the second node
Afterwards, pass through the corresponding non-block chain network, Xiang Suoshu according to the source identification of the non-block chain of the first node
First node is sent is shaken hands key using second after the public key encryption of the first node；
First decryption unit is configured to receive institute by way of the non-block chain network in the first node
It states second to shake hands after key, the described second key of shaking hands is decrypted using the private key of oneself；
Second decryption unit is configured to the second node and receives described by way of the block chain network
One shakes hands after key, and the described first key of shaking hands is decrypted using the private key of oneself；
The first session password unit is configured for the first node and shakes hands key according to described second, according to pre-
Algorithm as defined in elder generation obtains between the first node and the second node and is only limitted to this to the first session between node
Key；
The second session password unit is configured for the second node and shakes hands key according to described first, according to pre-
Algorithm as defined in elder generation obtains between the first node and the second node and is only limitted to this to the second session between node
Key.
Preferably, the source identification of the non-block chain include the corresponding terminal of the first node phone number,
In the IP address in INTERNET network, at least one in email address；
Correspondingly, the mode of the non-block chain network includes sending short message by mobile switch net or dialing voice electricity
The mode of words, by way of IP address P2P is sent, email address send E-mail address by way of.
Preferably, in the transaction computing module,
The transaction node uses the cryptographic Hash of oneself and the shared session-key computation transaction of other nodes；
Alternatively, the cryptographic Hash of the transaction node using the cipher key calculation transaction generated at random.
Preferably, it is established in module in the common recognition,
When the verification result be by accumulated quantity reach default common recognition threshold percentage when, by the transaction message and
All Message Records being verified within the scope of the preset time threshold are in block chain account book；
Otherwise, the transaction message is recorded in block chain account book by refusal.
The beneficial effects of the present invention are:
Method of commerce provided by the invention based on block chain and the transaction system based on block chain establish a kind of new
Block chain know together mechanism, avoid in the prior art block chain public key and signature length it is too long, will increase network communications burden and
The size of block, causing each node of block chain is the problem of real-time synchronization block chain account book needs a large amount of memory space, can pole
The big efficiency of transmission for promoting block chain, reduces the memory space of each node of block chain；Moreover, non-for example, by mobile switch net etc.
The mode of block chain network reaches one-to-one session key, and safety is higher, ensures the interests of both parties, promotes area
The development of block chain.
Detailed description of the invention
Fig. 1 is the flow chart of the method for commerce based on block chain in the embodiment of the present invention 1；
Fig. 2 is the structural block diagram of the transaction system based on block chain in the embodiment of the present invention 1；
Fig. 3 is the flow chart of the method for commerce based on block chain in the embodiment of the present invention 2；
Fig. 4 be Fig. 3 in step S2) detail flowchart；
Fig. 5 is the structural block diagram of the transaction system based on block chain in the embodiment of the present invention 2；
Fig. 6 is the detailed block diagram that Session key establishment module is shared in Fig. 5；
In attached drawing mark:
1- broadcast module；
2- transaction computing module；
3- transaction verification module；
4- common recognition establishes module；
5- shares Session key establishment module；The first encryption unit of 51-；The second encryption unit of 52-；53- first decrypts list
Member；The second decryption unit of 54-；55- the first session password unit；56- the second session password unit.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula is to the present invention is based on the method for commerce of block chain and the transaction system based on block chain is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of method of commerce based on block chain provided in this embodiment includes the following steps:
Step S1): each node will be broadcast to block after oneself block chain mark and private key signature of the public key using oneself
In chain；
Step S2): certain transaction node initiates a transaction, (first to calculate using the cryptographic Hash of the cipher key calculation transaction
Obtained cryptographic Hash, i.e., first cryptographic Hash), and will be broadcasted after the private key signature of transaction message and the first cryptographic Hash using oneself
Into block chain；
Step S3): other nodes use the cryptographic Hash for calculating the transaction again with the shared session key of transaction node
(cryptographic Hash being calculated again, i.e., again cryptographic Hash), it is whether identical as cryptographic Hash again to verify first cryptographic Hash, and will test
It is broadcast in block chain after demonstrate,proving private key signature of the result using oneself；
Step S4): for accounting nodes within the scope of the preset time threshold that transaction node initiates transaction, statistical testing of business cycles result is logical
Accumulated quantity whether mistake, and according to verification result be by accumulated quantity build a consensus mechanism.
Correspondingly, the present embodiment also provides a kind of transaction system based on block chain, as shown in Fig. 2, the system includes wide
Broadcasting module 1, transaction computing module 2, transaction verification module 3, common recognition establish module 4, in which:
Broadcast module 1, being configured for each node will be after private key signature using oneself of oneself block chain mark and public key
It is broadcast in block chain；
Transaction computing module 2 is configured for certain transaction node and initiates a transaction, using the Kazakhstan of the cipher key calculation transaction
Uncommon value, and block chain is broadcast to by broadcast module 1 is passed through after the private key signature of transaction message and the first cryptographic Hash using oneself
In；
Transaction verification module 3 is configured for other nodes using the shared session key with transaction node and calculates this again
The cryptographic Hash of transaction verifies whether first cryptographic Hash is identical as cryptographic Hash again, and verification result is used to the private key of oneself
It is broadcast in block chain after signature by broadcast module 1；
Common recognition establishes module 4, is configured for accounting nodes within the scope of the preset time threshold that transaction node initiates transaction,
Statistical testing of business cycles result by whether accumulated quantity, and according to verification result be by accumulated quantity build a consensus mechanism.
The present embodiment provides a kind of method of commerce based on block chain and the transaction systems based on block chain, establish a kind of new
Block chain know together mechanism, avoid in the prior art block chain public key and signature length it is too long, will increase the communications burden of network
With the size of block, causing each node of block chain is the status that real-time synchronization block chain account book needs a large amount of memory space, energy
The efficiency of transmission of significant increase block chain reduces the memory space of each node of block chain, promotes the development of block chain.
Embodiment 2:
The node of shared session password is not established for a certain rigid new node that block chain is added or with other nodes, this
Embodiment provides a kind of method of commerce based on block chain, as shown in figure 3, this method comprises the following steps:
Step S1): each node will be broadcast to block after oneself block chain mark and private key signature of the public key using oneself
In chain.
In this step, when there is a new first node A to be added in block chain, which locally generates the public affairs of oneself
Key and private key pair, by the way of sending broadcast message, by oneself block chain mark and public key broadcasts into block chain,
The broadcast message after the private key signature of the new node using being broadcasted.
Step S2): any pair of node in block chain carries out key exchange by way of non-block chain network, and establishing should
To between node and being only limitted to this to the shared session key between node.
In this step, any pair of node in block chain, such as first node A and second node B, first node A
When having communication requirement with the second node B in block chain, first node A and second node B by mobile switch net or
Mode under line or under chain carries out key exchange, that is to say, that possesses a pair of externally secrecy and only the between every two node
The session key shared between one node A and second node B.
As shown in figure 4, any pair of node in block chain carries out key exchange by way of non-block chain network, establish
This is between node and being only limitted to this specific step is as follows to the shared session key between node:
Step S21): first node is sent in block chain carries out communication request with second node, uses second node
Public key encryption obtains first and shakes hands key.
In this step, the public key of second node B can inquire oneself internal real-time synchronization and be stored by first node A
Block chain account book obtain, first node A is shaken hands key KEY-A using first after the public key encryption of second node B.
Step S22): it include the block chain mark of second node and the non-block chain of first node to the broadcast of block chain
Source identification, block chain mark and public key, the first broadcast message for shaking hands key, broadcast message uses the private key of first node
It signs.
Preferably, the source identification of non-block chain include the corresponding terminal of first node phone number,
At least one of in IP address, email address in INTERNET network；Correspondingly, the mode of non-block chain network includes passing through
Mobile switch net send short message or dial the mode of voice call, in such a way that IP address P2P is sent, pass through email address
Send the mode of E-mail address.
In this step, first node A sends the broadcast message that communication request is carried out with second node B in block chain,
In the broadcast message including second node B block chain mark, the corresponding terminal of first node A phone number (or
IP address, email address of first node A in INTERNET network etc.), the block chain of first node A mark and public key, make
It is shaken hands key KEY-A with first after the public key encryption of second node B, which uses the private key signature of first node A
After be broadcasted.
Step S23): second node receives the broadcast message of first node, according to the source of the non-block chain of first node
Mark is shaken hands by corresponding non-block chain network, to first node transmission using second after the public key encryption of first node close
Key.
In this step, second node B receives the broadcast message of first node A, according to the corresponding terminal of first node A
Phone number crosses the mode for sending short message or dialing voice call in mobile switch Netcom, sends and uses to first node A
Second after the public key encryption of the first node A key KEY-B that shakes hands (is also possible to shake hands key KEY-B using first for second
The E-mail address mode that either IP address P2P is sent is sent after the public key encryption of node A and is sent to first node A).
Step S24): first node is received second by way of non-block chain network and shaken hands key, using the private of oneself
The second key of shaking hands is decrypted in key.
In this step, first node A receives the public key encryption using first node A by way of non-block chain network
Second afterwards is shaken hands key KEY-B, using oneself private key by the second of the public key encryption for using oneself shake hands key KEY-B into
Row decryption.Reach one-to-one session key, safety for example, by the mode of the non-block chain network such as mobile switch net
It is higher, ensure the interests of both parties.
Step S25): second node is received first by way of block chain network and shaken hands key, using the private key of oneself
First key of shaking hands is decrypted.
In this step, similarly, second node B receives first and shakes hands after key, using the private key of oneself will use from
The key KEY-A that shakes hands of the first of oneself public key encryption is decrypted.
Step S26): first node is shaken hands key according to second, obtains first node and according to prespecified algorithm
Between two nodes and this is only limitted to the first session key between node.
Step S27): second node is shaken hands key according to first, obtains first node and according to prespecified algorithm
Between two nodes and this is only limitted to the second session key between node.
Step S26), step S27) implement respectively in two nodes, sequence is without limitation.In step S26), step S27)
In, first node A and second node B are respectively calculated according to KEY-A and KEY-B according to prespecified algorithm, are obtained
To the shared session key KEY-AB or KEY-BA of first node A and second node B.First node A to second node B first
Session key, second node B have directive property to the second session key of first node A, not identical under normal conditions.In advance
Defined algorithm can be such as Hash calculation etc., here without limitation.
Step S3): certain transaction node initiates a transaction, using the cryptographic Hash of the cipher key calculation transaction, and will transaction
It is broadcast in block chain after message and the private key signature of the first cryptographic Hash using oneself.
In this step, transaction node uses the Hash of oneself and the shared session-key computation transaction of other nodes
Value.First node A initiates a transaction to second node B, and first node A calculates this friendship using the hash algorithm with key
Easy cryptographic Hash, the hash algorithm with key use each between other nodes in oneself and block chain for first node A
From shared key calculate a series of cryptographic Hash of the transaction, node A is by transaction message and all cryptographic Hash one
It rises and is broadcast in block chain, the broadcast message using being broadcasted again after the private key signature of first node A.Wherein, cryptographic Hash is total
Number is that block chain present node sum subtracts 1.
Here it will be understood that first node A is not necessarily required to choose a unique key KEY-A for calculating transaction
The cryptographic Hash of message can generate key at random every time, using the cryptographic Hash of the cipher key calculation transaction generated at random, in this way
The safety and anti-cracking of communication and transaction are stronger.
Step S4): other nodes use the cryptographic Hash for calculating the transaction again with the shared session key of transaction node,
It is whether identical as cryptographic Hash again to verify first cryptographic Hash, and block will be broadcast to after private key signature of the verification result using oneself
In chain.
In this step, other nodes (i.e. verifying node C) in block chain receive the broadcast message of first node A transmission
Afterwards, the cryptographic Hash of the transaction is recalculated using the shared key of oneself and first node A.If the Hash being calculated
It is worth identical as the cryptographic Hash in the broadcast message received, then is verified.The verifying node C is incited somebody to action after the private key signature using oneself
The broadcast being verified is into block chain.
Step S5): for accounting nodes within the scope of the preset time threshold that transaction node initiates transaction, statistical testing of business cycles result is logical
Accumulated quantity whether mistake, and according to verification result be by accumulated quantity build a consensus mechanism.
Preferably, according to verification result be by accumulated quantity build a consensus mechanism when: when verification result be pass through
Accumulated quantity when reaching default common recognition threshold percentage, transaction message and all verifyings within the scope of preset time threshold are led to
The Message Record crossed is in block chain account book；Otherwise, transaction message is recorded in block chain account book by refusal.
In this step, preset time threshold model of the accounting nodes after first node A sends the broadcast message of the transaction
In enclosing, the message being verified progress quantity is added up, when transaction verification quantity reaches default common recognition threshold percentage, is then carried out
The generation of the new block of the transaction, that is to say, that block chain reaches altogether the generation of the new block that will be generated comprising the transaction
Know.Accounting nodes will be verified Message Record in area within the scope of origination message related with the transaction and all time thresholds
In block chain account book.
Correspondingly, the present embodiment also provides a kind of transaction system based on block chain, as shown in figure 5, the system includes wide
Broadcasting module 1, shared Session key establishment module 5, transaction computing module 2, transaction verification module 3, common recognition establish module 4, in which:
Broadcast module 1, being configured for each node will be after private key signature using oneself of oneself block chain mark and public key
It is broadcast in block chain；
Shared Session key establishment module 5, any pair of node being configured in block chain pass through non-block chain network
Mode carries out key exchange, establishes this between node and being only limitted to this to the shared session key between node；
Transaction computing module 2 is configured for certain transaction node and initiates a transaction, using the Kazakhstan of the cipher key calculation transaction
Uncommon value, and block chain is broadcast to by broadcast module 1 is passed through after the private key signature of transaction message and the first cryptographic Hash using oneself
In；
Transaction verification module 3 is configured for other nodes using the shared session key with transaction node and calculates this again
The cryptographic Hash of transaction verifies whether first cryptographic Hash is identical as cryptographic Hash again, and verification result is used to the private key of oneself
It is broadcast in block chain after signature by broadcast module 1；
Common recognition establishes module 4, is configured for accounting nodes within the scope of the preset time threshold that transaction node initiates transaction,
Statistical testing of business cycles result by whether accumulated quantity, and according to verification result be by accumulated quantity build a consensus mechanism.
Preferably, in transaction computing module 2, transaction node uses the shared session key meter of oneself and other nodes
Calculate the cryptographic Hash of the transaction；Alternatively, cryptographic Hash of the transaction node using the cipher key calculation transaction generated at random.
Established in module 4 in common recognition, when verification result be by accumulated quantity reach default common recognition threshold percentage when, will
Transaction message and all Message Records being verified within the scope of preset time threshold are in block chain account book；Otherwise, it refuses
Transaction message is recorded in block chain account book absolutely.
As shown in fig. 6, shared Session key establishment module 5 includes the first encryption unit 51, the second encryption unit 52, first
Decryption unit 53, the second decryption unit 54, the first session password unit 55, the second session password unit 56, in which:
First encryption unit 51 is configured to send in block chain in first node and second node progress communication request
When, first, which is obtained, using the public key encryption of second node shakes hands key；
Broadcast module 1 is configured to broadcast the non-of block chain mark and first node including second node to block chain
The broadcast message that the source identification of block chain, block chain mark and public key, first shake hands key, broadcast message use first node
Private key sign；
Second encryption unit 52 is configured to after the broadcast message that second node receives first node, according to first node
Non- block chain source identification by corresponding non-block chain network, send to first node and added using the public key of first node
Second after close shakes hands key；
First decryption unit 53 is configured to receive second by way of non-block chain network in first node and shakes hands key
Afterwards, the second key of shaking hands is decrypted using the private key of oneself；
Second decryption unit 54, is configured to second node and receives first by way of block chain network to shake hands after key,
The first key of shaking hands is decrypted using the private key of oneself；
First session password unit 55 is configured for first node and shakes hands key according to second, according to prespecified calculation
Method obtains between first node and second node and is only limitted to this to the first session key between node；
Second session password unit 56 is configured for second node and shakes hands key according to first, according to prespecified calculation
Method obtains between first node and second node and is only limitted to this to the second session key between node.
Wherein, the source identification of non-block chain includes the phone number of the corresponding terminal of first node, in INTERNET net
At least one of in IP address, email address in network；
Correspondingly, the mode of non-block chain network includes sending short message by mobile switch net or dialing voice call
Mode, by way of IP address P2P is sent, email address send E-mail address by way of.
Method of commerce provided in this embodiment based on block chain and the transaction system based on block chain establish a kind of new
Block chain know together mechanism, avoid in the prior art block chain public key and signature length it is too long, will increase the communications burden of network
With the size of block, causing each node of block chain is the problem of real-time synchronization block chain account book needs a large amount of memory space, energy
The efficiency of transmission of significant increase block chain reduces the memory space of each node of block chain；Moreover, for example, by mobile switch net etc.
The mode of non-block chain network reaches one-to-one session key, and safety is higher, ensures the interests of both parties, promotes
The development of block chain.
It is understood that embodiment of above is only principle to illustrate the invention and the exemplary embodiment party that uses
Formula, however the present invention is not limited thereto.For those skilled in the art, spirit of the invention is not being departed from
In the case where essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of method of commerce based on block chain, which is characterized in that comprising steps of
Each node will be broadcast in the block chain after oneself block chain mark and private key signature of the public key using oneself；
Certain transaction node initiates a transaction, using the cryptographic Hash of the cipher key calculation transaction, and transaction message is first with this
Cryptographic Hash is broadcast in the block chain after the private key signature using oneself；
Other nodes use the cryptographic Hash for calculating the transaction again with the shared session key of the transaction node, and verifying is first
Whether cryptographic Hash is identical as cryptographic Hash again, and will be broadcast to the block chain after private key signature of the verification result using oneself
In；
Accounting nodes the transaction node initiate transaction preset time threshold within the scope of, count the verification result by with
No accumulated quantity, and according to the verification result be by accumulated quantity build a consensus mechanism.
2. the method for commerce according to claim 1 based on block chain, which is characterized in that initiate one in certain transaction node
Before transaction, also have step: any pair of node in the block chain carries out key friendship by way of non-block chain network
It changes, establishes this between node and being only limitted to this to the shared session key between node；Include:
First node is sent in the block chain carries out communication request with second node, and the public key using the second node adds
It is close to obtain first and shake hands key；
It include the block chain mark of the second node and the non-block chain of the first node to block chain broadcast
Source identification, block chain mark and public key, the described first broadcast message for shaking hands key, the broadcast message use described first
The private key of node is signed；
The second node receives the broadcast message of the first node, according to the non-block chain of the first node
Source identification pass through the corresponding non-block chain network, Xiang Suoshu first node send using the first node public key
Encrypted second shakes hands key；
The first node is received described second by way of the non-block chain network and shaken hands key, using the private key of oneself
Described second key of shaking hands is decrypted；
The second node is received described first by way of the block chain network and shaken hands key, using the private key pair of oneself
Described first key of shaking hands is decrypted；
The first node is shaken hands key according to described second, obtains the first node and described according to prespecified algorithm
Between second node and this is only limitted to the first session key between node；
And the second node is shaken hands key according to described first, obtains the first node according to prespecified algorithm
Between the second node and this is only limitted to the second session key between node.
3. the method for commerce according to claim 2 based on block chain, which is characterized in that mark in the source of the non-block chain
Know include the corresponding terminal of the first node phone number, in INTERNET network IP address, in email address
At least one of；
Correspondingly, the mode of the non-block chain network includes sending short message by mobile switch net or dialing voice call
Mode, by way of IP address P2P is sent, email address send E-mail address by way of.
4. the method for commerce according to claim 1 based on block chain, which is characterized in that initiate one in certain transaction node
Transaction, using the cipher key calculation transaction cryptographic Hash the step of in,
The transaction node uses the cryptographic Hash of oneself and the shared session-key computation transaction of other nodes；
Alternatively, the cryptographic Hash of the transaction node using the cipher key calculation transaction generated at random.
5. the method for commerce according to claim 1 based on block chain, which is characterized in that according to the verification result be logical
The accumulated quantity crossed build a consensus mechanism the step of in, comprising:
When the verification result be by accumulated quantity reach default common recognition threshold percentage when, by the transaction message and in institute
All Message Records being verified within the scope of preset time threshold are stated in block chain account book；
Otherwise, the transaction message is recorded in block chain account book by refusal.
6. a kind of transaction system based on block chain, which is characterized in that including broadcast module, transaction computing module, transaction verification
Module, common recognition establish module, in which:
The broadcast module, being configured for each node will be wide after private key signature using oneself of oneself block chain mark and public key
It is multicast in the block chain；
The transaction computing module is configured for certain transaction node and initiates a transaction, using the Kazakhstan of the cipher key calculation transaction
Uncommon value, and by transaction message and the first cryptographic Hash using described in being broadcast to after oneself private key signature by the broadcast module
In block chain；
The transaction verification module is configured for other nodes and is calculated again using the shared session key with the transaction node
The cryptographic Hash of the transaction verifies whether first cryptographic Hash is identical as cryptographic Hash again, and verification result is used to the private of oneself
It is broadcast in the block chain after key signature by the broadcast module；
The common recognition establishes module, is configured for the preset time threshold range that accounting nodes initiate transaction in the transaction node
It is interior, count the verification result by whether accumulated quantity, and according to the verification result be by accumulated quantity establish
Common recognition mechanism.
7. the transaction system according to claim 6 based on block chain, which is characterized in that further include that shared session key is built
Formwork erection block, the shared Session key establishment module include the first encryption unit, the second encryption unit, the first decryption unit, the
Two decryption units, the first session password unit, the second session password unit, in which:
First encryption unit is configured to send in the block chain in first node and second node progress communication request
When, first, which is obtained, using the public key encryption of the second node shakes hands key；
The broadcast module, be configured to the block chain broadcast include the second node block chain mark and it is described
The broadcast message that the source identification of the non-block chain of first node, block chain mark and public key, described first shake hands key, it is described
Broadcast message is signed using the private key of the first node；
Second encryption unit, is configured to after the second node receives the broadcast message of the first node, presses
Pass through the corresponding non-block chain network, Xiang Suoshu first segment according to the source identification of the non-block chain of the first node
Point is sent is shaken hands key using second after the public key encryption of the first node；
First decryption unit is configured to receive described by way of the non-block chain network in the first node
Two shake hands after key, and the described second key of shaking hands is decrypted using the private key of oneself；
Second decryption unit, is configured to the second node and receives described first by way of the block chain network to hold
After hand key, the described first key of shaking hands is decrypted using the private key of oneself；
The first session password unit is configured for the first node and shakes hands key according to described second, according to preparatory rule
Fixed algorithm obtains between the first node and the second node and is only limitted to this to the first session key between node；
The second session password unit is configured for the second node and shakes hands key according to described first, according to preparatory rule
Fixed algorithm obtains between the first node and the second node and is only limitted to this to the second session key between node.
8. the transaction system according to claim 7 based on block chain, which is characterized in that mark in the source of the non-block chain
Know include the corresponding terminal of the first node phone number, in INTERNET network IP address, in email address
At least one of；
Correspondingly, the mode of the non-block chain network includes sending short message by mobile switch net or dialing voice call
Mode, by way of IP address P2P is sent, email address send E-mail address by way of.
9. the transaction system according to claim 6 based on block chain, which is characterized in that in the transaction computing module
In,
The transaction node uses the cryptographic Hash of oneself and the shared session-key computation transaction of other nodes；
Alternatively, the cryptographic Hash of the transaction node using the cipher key calculation transaction generated at random.
10. the transaction system according to claim 6 based on block chain, which is characterized in that establish module in the common recognition
In,
When the verification result be by accumulated quantity reach default common recognition threshold percentage when, by the transaction message and in institute
All Message Records being verified within the scope of preset time threshold are stated in block chain account book；
Otherwise, the transaction message is recorded in block chain account book by refusal.
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