CN108573438A - A kind of autonomous transaction system of custom power based on block chain - Google Patents
A kind of autonomous transaction system of custom power based on block chain Download PDFInfo
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Abstract
The invention discloses a kind of autonomous transaction systems of the custom power based on block chain, include：User terminal electricity transaction module can sell power capacity, electric energy unit price and vendor information for seller's publication, be additionally operable to buyer and initiate purchase request, and complete power trade by being communicated with seller；Electricity transaction management platform is used for the electricity transaction between seller and buyer and is managed, and transaction data base is written in transaction data and state；Power scheduling module is patrolled in real time for the stateful transaction to updated seller and buyer, and electric energy is carried out power scheduling from seller and buyer.The present invention realizes point-to-point transaction and transmission between regional power generation family and electric power electricity consumer, it avoids and sets up a large amount of transmission lines of electricity, huge economic cost is saved, and ensure that independence, safety and the reliability of process of exchange using block chain technology, it solves the problems, such as the transparence of electricity transaction and ensure that transaction data can not be distorted.
Description
Technical field
The present invention relates to power market transaction field, especially a kind of custom power based on block chain, which is independently merchandised, is
System.
Background technology
Block chain (Blockchain) is a key concept of bit coin, is substantially the data of a decentralization
Library, while as the Floor layer Technology of bit coin.Block chain is a string of data blocks using the associated generation of cryptography method, each
The information that a bit coin network trading is contained in a data block, validity (anti-fake) for verifying its information and under generating
One block.
For narrow sense, block chain is a kind of be sequentially in time combined into data block in such a way that sequence is connected one
Kind linked data structure, and the distributed account book that can not be distorted He can not forge ensured in a manner of cryptography.Broadly, area
Block chain technology is to verify and store data using block linked data structure, know together algorithm using distributed node to generate and more
New data, utilizes the intelligence being made of automatized script code at the safety for ensureing data transmission and access in the way of cryptography
Can contract program a kind of completely new distributed basis framework and calculation paradigm with operation data.
So-called block chain technology is also referred to as distributed account book technology, is a kind of internet database technology, feature
It is decentralization, open and clear, everyone is allowed to each may participate in data-base recording.It is illustrated with if popular：If we are data
Library assumes an account book, and read-write database can regard a kind of behavior of book keeping operation as, and the principle of block chain technology is exactly one
The most fast best of book keeping operation is found out in the section time, is kept accounts by this people, this page information of account book is then issued into entire system
Other owners in system.This is also equivalent to all records in change data library, issues other each nodes of the whole network, so
Block chain technology is also referred to as distributed account book (distributed ledger).
Existing traditional intelligence power grid operation pattern is the power supply mode by centralization or regional center, passes through power generation
Power generation of standing is being delivered to power station, by power station United Dispatching, distributes according to need to terminal user；But with distributed power generation and the sun
It can be improved with the technical maturity of the clean generation mode such as wind power generation, for large-scale community or compartmentalization small towns user Ke Tong
Installation photovoltaic panel, wind-driven generator or production and use of marsh gas power generating equipment are crossed to carry out independent power generation, for what is sent out
Rich electricity needs to set up if merchandising the higher transmission line of electricity of cost and maintenance cost with power grid, and user's individual is sent out
Power capacity is smaller, if by line transmission, electric energy loss therein is necessarily very important, therefore how to realize large-scale community or area
The on-site elimination problem of domain small towns user's individual independent power generation is to need urgent problem to be solved.
Based on the above issues, if autonomous electricity transaction between user and user can be realized, and ensure in process of exchange can
By property, safety, economy etc. then can be very good to solve the above problems.
Invention content
In view of the above-mentioned problems, the present invention is intended to provide a kind of autonomous transaction system of custom power based on block chain, is realized
The individual consumer of power generation can realize the on-site elimination of electric energy to the autonomous sale of electricity of user nearby, and ensure that purchase user buys electricity
The process of exchange of energy is safe and reliable and Transaction Information can not be distorted.
The purpose of the present invention is realized using following technical scheme：
The present invention provides a kind of autonomous transaction systems of the custom power based on block chain, include：
User terminal electricity transaction module can sell power capacity, electric energy unit price and vendor information for seller's publication, also use
Purchase request is initiated in buyer, and power trade is completed by being communicated with seller.
Electricity transaction management platform, including grid build module, system data memory module and stateful transaction more
New module；The grid builds module for will realize that communication connection and electric energy are defeated between multiple sellers and multiple buyers
The connection sent；The data memory module is for be deposited into transaction data base the information that seller issues, and by the number
User is shared to according to library；The stateful transaction update module is used to update the state of electricity transaction between seller and buyer, and will
Transaction data base is written in the state.
Power scheduling module is patrolled in real time for the stateful transaction to updated seller and buyer, once inquiry
Electricity transaction state to seller and buyer is updated to complete transaction, then starts electric energy carrying out electric power tune from seller and buyer
Degree.
Preferably, further include central energy-accumulating power station, the electric energy multiple for storing seller, and by the vendor information of electric energy with
And storage electric energy store and update on the spot being uploaded to system data memory module.
Preferably, the user terminal electricity transaction module includes user's registration/login unit, electricity transaction unit and number
According to storage element；The user's registration/login unit is used for seller and buyer's registration/login user end electricity transaction module；Institute
Electricity transaction unit is stated, electricity transaction receipt is requested to generate according to power purchase for buyer, and be broadcasted to electricity transaction pipe
In platform, it is additionally operable to corresponding seller and receives electricity transaction receipt, broadcast trade confirmation receipt after confirming Transaction Information
To buyer；The data storage element is for storing the identity information and historical transactional information of user.
Preferably, the electricity transaction unit includes transactional operation interface, transaction data enciphering/deciphering unit, data broadcasting
Unit；The transactional operation interface is additionally operable to setting buyer for setting the energy data and vendor information that seller to be sold
Energy data to be bought and corresponding vendor information；The transaction data enciphering/deciphering unit is used for setting or receiving
Data are encrypted or decryption processing；The data broadcasting unit is used to receive transaction data from electricity transaction management platform,
Or it sends in transaction data to electricity transaction management platform.
Preferably, the electricity transaction management platform further includes block packetization module, is used for the buyer in the predetermined time
The trade confirmation receipt received, which is packaged, to be generated block and is broadcasted to user.
Preferably, described data to be encrypted to obtain ciphertext by signature algorithm to realize, the signature
Algorithm is：
(1) data of electronic transaction receipt are subjected to Hash calculation, obtained result is compressed according to rule, compressed
Obtain character string；
(2) obtained string table is shown as the point Q (x, y) that the rank on elliptic curve F is prime number k, buyer and seller
Private key be it is privately owned underground, from data memory module obtain seller public key Lg；
(3) the public key Lg of the private key z and seller that first pass through buyer, which hold consultation, generates shared key m, using shared close
Key and signature algorithm calculate the signature of above-mentioned character string corresponding points；
(4) ciphertext can be formed after electricity transaction receipt being encrypted by signature.
Preferably, the computational methods of the signature are：
(1) Integer n is randomly derived by random algorithm, n belongs to [1, k-1]；
(2) it is n=(n Integer n to be carried out disassembly in the binary systeml-1,···n0)2, l is the item number of disassembly in the binary system, then
Integer n and point Q are subjected to calculation processing and obtain the signature factor, specially：
1) pass through the sub- point Q of point Q regenerations1(x1, y1) and Q2(x2, y2), setting initial value x1=c × x；y1=1；x2=
x2+1；y2=y2+d；C, d are the small change factor being manually set.
2) according to the update times i sequences successively increased and corresponding niValue to Q1And Q2Point coordinates carry out it is continuous
Update；Wherein, ni∈[nl-1,···n0], i ∈ [0, l-1], i indicates update times, niIndicate that ith is newer
Binary bit value；Specifically more new formula is：
When carrying out ith iteration, if niWhen=0, to Q2Point is updated, if niWhen=1, then to Q1Point is updated, more
New formula is：
In formula, u is equal to 1 or 2, for selecting to Q1Point or Q2Point is updated；(xu i, yu i) indicate to pass through ith iteration
Point coordinates value afterwards；(x1 i-1, y1 i-1) indicate the Q after (i-1)-th iteration1Point coordinates value；(x2 i-1, y2 i-1) indicate by the
Q after i-1 iteration2Point coordinates value；
3) when iteration l times, i.e. i=l-1, iteration is completed, and the Q after final updated is obtained1And Q2Point coordinates；According to it
The calculate the signature factor：
In formula, s is the signature factor；(x1′,y1') be final updated after Q1Point coordinates；(x2′,y2') for after final updated
Q2Point coordinates；
(3) calculate the signature factor pair prime number k complementations, obtained remainder are that the first signature marks w0；If w0Equal to 0, then again
N is selected, carries out recalculating the signature factor；
(4) by the corresponding plaintext V of character string by with put corresponding hash function on curve and handle to obtain label h；Foundation
The second signature label w can be calculated in signature factor s, shared key m, label h and Integer n1；
(5) if w1Equal to 0, then n is reselected to be calculated, otherwise, generates signature (w0, w1)。
Beneficial effects of the present invention are：The present invention is by devising a kind of custom power based on block chain and independently merchandising
System, realizes point-to-point transaction and transmission between regional power generation family and electric power electricity consumer, solves region electric power
The consumption problem of power generation, avoids and erects power transmission lines, and has saved huge economic cost, and ensure that using block chain technology
Independence, safety and the reliability of process of exchange, transaction record is written in block chain, solves the saturating of electricity transaction
Brightization problem and it ensure that transaction data can not be distorted.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not constitute any limit to the present invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the composition frame diagram of the autonomous transaction system of custom power of the present invention；
Specific implementation mode
In conjunction with following application scenarios, the invention will be further described.
Referring to Fig. 1, in the present embodiment, it is proposed that a kind of autonomous transaction system of custom power based on block chain includes：
User terminal electricity transaction module can sell power capacity, electric energy unit price and vendor information for seller's publication, also use
Purchase request is initiated in buyer, and power trade is completed by being communicated with seller.
Electricity transaction management platform, including grid build module, system data memory module and stateful transaction more
New module；The grid builds module for will realize that communication connection and electric energy are defeated between multiple sellers and multiple buyers
The connection sent；The data memory module is used for the public key progress of information and participate in business buyer and seller that seller issues
It is deposited into transaction data base, and by the Database vendors to user；The stateful transaction update module for update seller with
The state of electricity transaction between buyer, and transaction data base is written into the state.
Power scheduling module is patrolled in real time for the stateful transaction to updated seller and buyer, once inquiry
Electricity transaction state to seller and buyer is updated to complete transaction, then starts electric energy carrying out electric power tune from seller and buyer
Degree.
Preferably, further include central energy-accumulating power station, the electric energy multiple for storing seller, and by the vendor information of electric energy with
And storage electric energy store and update on the spot being uploaded to system data memory module.
Preferably, the user terminal electricity transaction module includes user's registration/login unit, electricity transaction unit and number
According to storage element；The user's registration/login unit is used for seller and buyer's registration/login user end electricity transaction module；Institute
Electricity transaction unit is stated, electricity transaction receipt is requested to generate according to power purchase for buyer, and be broadcasted to electricity transaction pipe
In platform, it is additionally operable to corresponding seller and receives electricity transaction receipt, broadcast trade confirmation receipt after confirming Transaction Information
To buyer；The data storage element is for storing the identity information and historical transactional information of user.
Preferably, the electricity transaction unit includes transactional operation interface, transaction data enciphering/deciphering unit, data broadcasting
Unit；The transactional operation interface is additionally operable to setting buyer for setting the energy data and vendor information that seller to be sold
Energy data to be bought and corresponding vendor information；The transaction data enciphering/deciphering unit is used for setting or receiving
Data are encrypted or decryption processing；The data broadcasting unit is used to receive transaction data from electricity transaction management platform,
Or it sends in transaction data to electricity transaction management platform.
In the present embodiment, the seller and buyer's registration/login user end electricity transaction module are realized with this to participating in electricity
The access process of user of power transaction supervises, and realizes that all user groups to block chain supervise with this.
The seller and buyer's registration/login user end electricity transaction module realized based on recognition of face, if with
Recognition of face qualification in family then allows buyer or seller to enter user terminal electricity transaction module to be traded.
In the present embodiment, an electricity transaction is carried out by buyer Zhang San and seller Li Si until the process completed of transaction come
Illustrate the specific implementation of the electricity transaction unit：
(1) buyer Zhang San is by user's registration/login unit login user end electricity transaction module, and Zhang San is in transactional operation
Interface selects seller Li Si, and selects the electricity of setting purchase in the interface, and it includes transaction content, seller's identity to generate a
The electronic transaction receipt of timestamp is initiated in information, purchase electricity, transaction amount and transaction；
(2) electronic transaction receipt feeding transaction data enciphering/deciphering unit is encrypted Zhang San, and receipt is encrypted
The buyer's ciphertext obtained afterwards carries out broadcast transmission to Li Si by data broadcasting unit, wherein adds to electronic transaction receipt
Close processing is that signature algorithm accomplished by signature algorithm, described is：
S1：The data of electronic transaction receipt are subjected to Hash calculation, obtained result is compressed according to rule, are compressed
Obtain character string；
S2：By obtained string table be shown as the rank on elliptic curve F be prime number k a point Q (x, y), buyer Zhang San with
The private key of seller Li Si is privately owned underground；The public key Lg of Li Si is obtained from data memory module；
S3：The public key Lg of the private key z and Li Si that first pass through Zhang San, which hold consultation, generates shared key m, using shared close
Key and signature algorithm calculate the signature of above-mentioned character string corresponding points, and specific method is：
(1) Integer n is randomly derived by random algorithm, n belongs to [1, k-1]；
(2) it is n=(n Integer n to be carried out disassembly in the binary systeml-1,···n0)2, l is the item number of disassembly in the binary system, then
Integer n and point Q are subjected to calculation processing and obtain the signature factor, specially：
1) pass through the sub- point Q of point Q regenerations1(x1, y1) and Q2(x2, y2), setting initial value x1=c × x；y1=1；x2=
x2+1；y2=y2+d；C, d are the small change factor being manually set.
2) according to the update times i sequences successively increased and corresponding niValue to Q1And Q2Point coordinates carry out it is continuous
Update；Wherein, ni∈[nl-1,···n0], i ∈ [0, l-1], i indicates update times, niIndicate that ith is newer
Binary bit value；Specifically more new formula is：
When carrying out ith iteration, if niWhen=0, to Q2Point is updated, if niWhen=1, then to Q1Point is updated, more
New formula is：
In formula, u is equal to 1 or 2, for selecting to Q1Point or Q2Point is updated；(xu i, yu i) indicate to pass through ith iteration
Point coordinates value afterwards；(x1 i-1, y1 i-1) indicate the Q after (i-1)-th iteration1Point coordinates value；(x2 i-1, y2 i-1) indicate by the
Q after i-1 iteration2Point coordinates value；
3) when iteration l times, i.e. i=l-1, iteration is completed, and the Q after final updated is obtained1And Q2Point coordinates；According to it
The calculate the signature factor：
In formula, s is the signature factor；(x1′,y1') be final updated after Q1Point coordinates；(x2′,y2') for after final updated
Q2Point coordinates；
(3) calculate the signature factor pair prime number k complementations, obtained remainder are that the first signature marks w0；If w0Equal to 0, then again
N is selected, carries out recalculating the signature factor；
(4) by the corresponding plaintext V of character string by with put corresponding hash function on curve and handle to obtain h；According to signature
The second signature label w can be calculated in factor s, shared key m, h and Integer n1, specifically have：
(5) if w1Equal to 0, then n is reselected to be calculated, otherwise, generates signature (w0, w1)。
S4：Buyer's ciphertext is formed after electricity transaction receipt is encrypted by signature.
(3) seller Li Si login user end electricity transaction module receives buyer's ciphertext by data broadcasting unit,
Then the buyer's ciphertext received is sent into transaction data enciphering/deciphering unit, buyer's ciphertext is solved using verification algorithm
Close to obtain electronic transaction receipt, Li Si checks receipts of transactions, it is added on electronic transaction receipt if there is no problem
Privately owned trust label is to generate a confirmation receipts of transactions；The privately owned trust label can be digital certificate；Then transaction data
Enciphering/deciphering unit generates seller's ciphertext to confirming that receipts of transactions is encrypted, and seller's ciphertext is sent out by data broadcasting unit
Give buyer Zhang San；
(4) after buyer Zhang San receives seller's ciphertext by data broadcasting unit, the seller's ciphertext received feeding is bought
The transaction data enciphering/deciphering unit of family's user terminal is decrypted, and to the confirmation receipts of transactions that decryption obtains check is
The no privately owned trust for having seller marks, if confirming, transaction is errorless, which is broadcast to electricity transaction management and is put down
Platform.
In this preferred embodiment, signature algorithm is designed, by user to the secrecy of oneself private key, is just partly protected
Demonstrate,proved transaction safety, and by above-mentioned signature algorithm to transaction generate data further encrypted, using based on
The innovatory algorithm of elliptic curve encryption algorithm considerably enhances electric power data in process of exchange by setting changed factor c, d
In security reliability and tamper-resistance properties.
Preferably, the electricity transaction management platform further includes block packetization module, is used for the buyer in the predetermined time
The confirmation receipts of transactions received, which is packaged, to be generated block and is broadcasted to the high user terminal transaction modules of metewand.
In the present embodiment, the user terminal electricity transaction module further includes that block enters chain element, for entering to block
Chain, which operates to obtain, extends updated block chain, and the block chain is broadcasted to electricity transaction management platform and is stored, electric power
Trade management platform simultaneously updates stateful transaction according to this.
In the present embodiment, the high user terminal transaction modules of the metewand are by the computing capability of user terminal, storage
Metewand that space, transaction trust degree and operational reliability are calculated determines；The high user terminal of metewand obtains
The digging mineral rights to block processes is obtained, the end that block is written to block chain makes block chain lengthening become updated block chain.
Electricity transaction management platform is shared the user terminal electric power into total system after receiving updated block chain
Transaction modules, to ensure the transparence of history electricity transaction data.
Embodiment two：In this embodiment, still use the composition of the autonomous transaction system of the electric power in above-described embodiment with
And principle；
In the present embodiment, efficient face recognizer is devised, specially：
(1) when power consumer is registered, user terminal electricity transaction module receives user's upload and belongs to the standard faces figure of itself
Image set, and face profile, interpupillary distance, bridge of the nose local gray level and global gray scale etc. are carried out to every standard faces image in image set
The feature extraction of different dimensions；
(2) user terminal electricity transaction module is asked each dimensional characteristics of the standard faces image set by feature classification
With averagely, the standard value of each dimensional characteristics of user's face is obtained, and its human face data is stored in data storage element；
(3) user takes brush face to verify when logging in, i.e., user terminal electricity transaction module obtains user's facial image,
And the feature extraction of above-mentioned dimension is carried out to user's facial image, by the feature extracted and each dimensional characteristics of user's face
Standard value relatively obtains diversity factor magnitude；
Wherein, the calculation formula of the diversity factor magnitude is：
In formula, D ' is the facial contour feature extracted from user's facial image；When N ' is user's brush face in facial image
Interpupillary distance feature；The global shade of gray feature that F ' is extracted when being user's brush face；C ' is the mouth shape office in user's facial image
Portion's gray difference feature；ρ is the facial contour curvature zoom factor of setting；γ is the Illumination for influencing face gray feature；For the contour feature standard value of user's face；For the standard value of the interpupillary distance feature of user's face；For the user people
The global shade of gray characteristic standard value of face,For the standard value of the bridge of the nose local gray level difference characteristic of user's face；
(4) determine trusted threshold values, the value be used for judge user when carrying out identification whether believable feature difference
Setting value；The calculation of the threshold values is：A same user's facial images are inputted to user terminal electricity transaction corresponding to the user
Module calculates K values according to above-mentioned steps, is denoted as KA；Then B use not corresponding with the user terminal electricity transaction module of input
Family facial image also calculates K values according to above-mentioned steps, is denoted as KB；According to A, KA,B,KNTrusted threshold values K can be calculated0；
(5) the diversity factor magnitude being calculated is compared with trusted threshold values, if | K-K0|<α then assert the use
The diversity factor magnitude trusted that family face is calculated, authentication is qualified, and wherein α is the discrepancy factor of setting；Otherwise, just prohibit
Only login user end electricity transaction module.
In this preferred embodiment, trade user identity information real name is made by the user's registration/login unit, and adopt
Small with calculation amount, the high face recognition algorithms of discrimination carry out login supervision to user, greatly reduce user and are stepping on
By the possibility of Trojan attack when record, and improve the quick and safety of transaction.
In the present embodiment, the calculation formula of metewand is devised：
In formula, F is metewand, and L is the maximum data processing capacity of user node in transaction system；V is trade user
The evolution factor of node data processing capacity；C is the data storage space of trade user node, is user node storage space
Decay rates；Y is the electricity transaction reliability of user node；G is the digital asset amount that user node corresponds to user；ω is to use
The trust-factor of family node transaction.
In this preferred embodiment, by designing the metewand, to the user terminal rank of the user that participates in business in system with
And historical trading prestige accounts for, and allows high-quality user to pass through the digging mineral rights of acquisition block with the evaluation result that this is obtained
Block chain is updated and then obtains the reward of electricity transaction management platform, is so designed, it is ensured that elongation more new block chain
When can have high efficiency and high reliability.
In the present embodiment, by devising a kind of autonomous transaction system of the custom power based on block chain, region is realized
Point-to-point transaction and transmission between property power generation family and electric power electricity consumer, the consumption for solving region power generation are asked
Topic, avoids and erects power transmission lines, and has saved huge economic cost, and use block chain technology ensure that oneself of process of exchange
Main property, safety and reliability, transaction record is written in block chain, solve the problems, such as the transparence of electricity transaction and
It ensure that transaction data can not be distorted.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as analysis, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (8)
1. a kind of autonomous transaction system of custom power based on block chain, which is characterized in that include：
User terminal electricity transaction module can sell power capacity, electric energy unit price and vendor information for seller's publication, be additionally operable to buy
Family initiates purchase request, and completes power trade by being communicated with seller；
Electricity transaction management platform, including grid build module, system data memory module and stateful transaction update mould
Block；The grid builds module for will realize communication connection and electrical energy transportation between multiple sellers and multiple buyers
Connection；The data memory module is for be deposited into transaction data base the information that seller issues, and by the database
Share to user；The stateful transaction update module is used to update the state of electricity transaction between seller and buyer, and by the shape
Transaction data base is written in state；
Power scheduling module is patrolled for the stateful transaction to updated seller and buyer, is sold once inquiring in real time
Family and the electricity transaction state of buyer are updated to complete transaction, then start electric energy carrying out power scheduling from seller and buyer.
2. the autonomous transaction system of a kind of custom power based on block chain according to claim 1, which is characterized in that also wrap
Central energy-accumulating power station is included, the electric energy multiple for storing seller, and the vendor information of electric energy and storage electric energy are carried out on the spot
Storage and update are uploaded to system data memory module.
3. the autonomous transaction system of a kind of custom power based on block chain according to claim 1, which is characterized in that described
User terminal electricity transaction module includes user's registration/login unit, electricity transaction unit and data storage element；The user
Registration/login unit is used for seller and buyer's registration/login user end electricity transaction module；The electricity transaction unit, is used for
Buyer requests to generate electricity transaction receipt according to power purchase, and is broadcasted in electricity transaction management platform, is additionally operable to correspond to
Seller receives electricity transaction receipt, and trade confirmation receipt is broadcast to buyer after confirming Transaction Information；The data storage
Unit is for storing the identity information and historical transactional information of user.
4. the autonomous transaction system of a kind of custom power based on block chain according to claim 3, which is characterized in that described
Electricity transaction unit includes transactional operation interface, transaction data enciphering/deciphering unit, data broadcasting unit；The transactional operation connects
Mouthful for setting the energy data and vendor information that seller to be sold, it is additionally operable to setting buyer energy data to be bought and right
The vendor information answered；The transaction data enciphering/deciphering unit be used for the data for setting or receiving be encrypted or decryption at
Reason；The data broadcasting unit is used to receive transaction data from electricity transaction management platform, or sends transaction data to electric power
In trade management platform.
5. the autonomous transaction system of a kind of custom power based on block chain according to claim 1, which is characterized in that described
Electricity transaction management platform further includes block packetization module, the trade confirmation for receiving the buyer in the predetermined time
Receipt, which is packaged, to be generated block and is broadcasted to user.
6. the autonomous transaction system of a kind of custom power based on block chain according to claim 4, which is characterized in that described
Data are encrypted to obtain ciphertext by signature algorithm to realize, the signature algorithm is：
(1) data of electronic transaction receipt are subjected to Hash calculation, obtained result are compressed according to rule, compression obtains
Character string；
(2) obtained string table is shown as the point Q (x, y) that the rank on elliptic curve F is prime number k, the private of buyer and seller
Key is privately owned underground, and the public key Lg of seller is obtained from data memory module；
(3) the public key Lg of the private key z and seller that first pass through buyer, which hold consultation, generates shared key m, use shared key with
And signature algorithm calculates the signature of above-mentioned character string corresponding points；
(4) buyer's ciphertext can be formed after electricity transaction receipt being encrypted by signature.
7. the autonomous transaction system of a kind of custom power based on block chain according to claim 6, which is characterized in that described
The computational methods of signature are：
(1) Integer n is randomly derived by random algorithm, n belongs to [1, k-1]；
(2) it is n=(n Integer n to be carried out disassembly in the binary systeml-1,···n0)2, l is the item number of disassembly in the binary system, then will be whole
Number n and point Q carries out calculation processing and obtains the signature factor, specially：
1) pass through the sub- point Q of point Q regenerations1(x1, y1) and Q2(x2, y2), setting initial value x1=c × x；y1=1；x2=x2+1；
y2=y2+d；C, d are the small change factor being manually set；
2) according to the update times i sequences successively increased and corresponding niValue to Q1And Q2Point coordinates constantly updated；
Wherein, ni∈[nl-1,···n0], i ∈ [0, l-1], i indicates update times, niIndicate ith newer two into
Place value processed；Specifically more new formula is：
When carrying out ith iteration, if niWhen=0, to Q2Point is updated, if niWhen=1, then to Q1Point is updated, and update is public
Formula is：
In formula, u is equal to 1 or 2, for selecting to Q1Point or Q2Point is updated；(xu i, yu i) indicate after ith iteration
Point coordinates value；(x1 i-1, y1 i-1) indicate the Q after (i-1)-th iteration1Point coordinates value；(x2 i-1, y2 i-1) indicate to pass through (i-1)-th
Q after secondary iteration2Point coordinates value；
3) when iteration l times, i.e. i=l-1, iteration is completed, and the Q after final updated is obtained1And Q2Point coordinates；It is counted according to them
Calculation obtains the signature factor；
(3) calculate the signature factor pair prime number k complementations, obtained remainder are that the first signature marks w0；If w0Equal to 0, then reselect
N carries out recalculating the signature factor；
(4) by the corresponding plaintext V of character string by with put corresponding hash function on curve and handle to obtain label h；According to signature
The second signature label w can be calculated in factor s, shared key m, h and Integer n1；
(5) if w1Equal to 0, then n is reselected to be calculated, otherwise, generates signature (w0, w1)。
8. the autonomous transaction system of a kind of custom power based on block chain according to claim 7, which is characterized in that described
Signature the factor calculation formula be：
In formula, s is the signature factor；(x1′,y1') be final updated after Q1Point coordinates；(x2′,y2') be final updated after Q2
Point coordinates.
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