CN108241979A - More account book transfer account methods, electronic device and readable storage medium storing program for executing based on block chain - Google Patents
More account book transfer account methods, electronic device and readable storage medium storing program for executing based on block chain Download PDFInfo
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- CN108241979A CN108241979A CN201711382545.3A CN201711382545A CN108241979A CN 108241979 A CN108241979 A CN 108241979A CN 201711382545 A CN201711382545 A CN 201711382545A CN 108241979 A CN108241979 A CN 108241979A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3829—Payment protocols; Details thereof insuring higher security of transaction involving key management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3825—Use of electronic signatures
Abstract
The present invention relates to a kind of more account book transfer account methods based on block chain, electronic device and readable storage medium storing program for executing, this method to include：If the first user account of the first user initiates the transaction request for exchanging default exchange trading share by default exchange rate with the second user account of second user under the second account book under the first account book in block chain, the first ciphertext that the first user encrypts generation in advance is received；First ciphertext is that generation is encrypted using the second preset password formula and corresponding trade share privacy secret key in default exchange trading share；By the first default exchange calculation formula and based on default exchange rate and the first ciphertext, the exchange trading share, encryption exchange trading share and corresponding trade share privacy secret key of the second account book are calculated, and generate the second ciphertext of the second account book；Transaction is completed based on the first ciphertext and the second ciphertext.The present invention can realize more account book transfer operations in block chain technology scene is effectively ensured in the case of trading information safety.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of more account book transfer account methods, electronics based on block chain
Device and readable storage medium storing program for executing.
Background technology
Decentralization that block chain technology has by it, information can not tamper the features such as, increasingly by finance, insurance
Wait fields company favor, especially with block chain technology realization participate in many ways transaction event (for example, money transfer transactions,
The events such as payment transaction) focus of concern is increasingly becomed, for example, bank B is given when bank A will sell 100 bills, if this
Transaction carries out on block chain, then the every other node on block chain can all verify this transaction, and benefit is other
Participant can participate in confirming transaction accuracy together, but cannot understand (decryption) data (also known as Zero Knowledge detection).
In order to ensure the privacy of transaction, industry would generally be in transaction using privacy transaction encryption/decryption algorithm at present.So
And existing privacy transaction encryption/decryption algorithm is generally limited only to the operation in the next account book of block chain technology scene, such as
X shares in one assets account book are gone to second account from first account.However, in actual block chain technology scene, each pen
It transfers accounts and is likely to involve two or more account books, then this existing privacy transaction encryption/decryption algorithm will be unable to realize block chain
This privacy transaction under technology scene.
Therefore, how in block chain technology scene is effectively ensured in the case of trading information safety, realize that more account books turn
Account operates, and has become the technical issues of a kind of urgently to be resolved hurrily.
Invention content
The purpose of the present invention is to provide a kind of more account book transfer account methods, electronic device and readable storages based on block chain
Medium, it is intended in the case of ensureing trading information safety, realize more account book transfer operations in block chain technology scene.
To achieve the above object, the present invention provides a kind of more account book transfer account methods based on block chain, is filled applied to electronics
It puts, more account book transfer account methods based on block chain include：
A, if the first user account of the first user is initiated and second user under the second account book under the first account book in block chain
Second user account transaction request, then receive the first ciphertext that first user encrypts generation in advance；The transaction please
The request for default exchange trading share is exchanged by default exchange rate is asked, first ciphertext is default exchange trading part
The first ciphertext of generation is encrypted using the second preset password formula and corresponding trade share privacy secret key for volume；
B, by first it is default exchange calculation formula and based on the default exchange rate and first ciphertext, be described the
The exchange trading share, encryption exchange trading share and corresponding trade share privacy that two account books calculate second account book are secret
Key, and generate the encryption exchange trading share of second account book and the second ciphertext of corresponding trade share privacy secret key；
C, based on first ciphertext and the second ciphertext, and the first user under first account book is completed by preset rules
First user account and the transaction of the second user account of second user under second account book.
Preferably, the step C includes：
Receive the first ciphertext after electronic signature；The first ciphertext after the electronic signature is first user by described in
After first ciphertext issues the second user, if the second user confirms default exchange trading share according to first ciphertext
With default exchange rate, then the second user electronic signature generation is carried out to first ciphertext；
The first ciphertext after the electronic signature is write on the shared assets account book on each node of block chain；
The remaining sum of the first user account of first user and described is updated under first account book according to first ciphertext
The remaining sum of the third account of second user under first account book, and the second use under second account book is updated according to second ciphertext
The remaining sum of the 4th account of first user under the remaining sum of the second user account at family and second account book.
Preferably, it is described that the first user account of first user under first account book is updated according to first ciphertext
Include the step of the remaining sum of the third account of second user under remaining sum and first account book：
According to the remaining sum of first default remaining sum calculation formula first user account of the first user under first account book
Middle to deduct the default exchange trading share, calculate the first user account of the first user under first account book first is new
Remaining sum, and will be in the first new balance that calculated update to shared assets account book；
Increased in the remaining sum of the third account of second user under first account book according to the second default remaining sum calculation formula
Add the default exchange trading share, calculate the second new balance of the third account of second user under first account book, and
It will be in the second new balance that calculated update to shared assets account book.
Preferably, it is described that the second user account of second user under second account book is updated according to second ciphertext
Include the step of the remaining sum of the 4th account of the first user under remaining sum and second account book：
The remaining sum of remaining sum calculation formula second user account of second user under second account book is preset according to third
Middle to deduct the default exchange trading share, the third for calculating the second user account of second user under second account book is new
Remaining sum, and will be in the third new balance that calculated update to shared assets account book；
Increased in the remaining sum of the 4th account of the first user under second account book according to the 4th default remaining sum calculation formula
Add the default exchange trading share, calculate the 4th new balance of the 4th account of the first user under second account book, and
It will be on the "four news" (new ideas balance updates that calculated to shared assets account book.
Preferably, the third presets the third account that remaining sum calculation formula is additionally operable to the second user under first account book
Increase the default exchange trading share in the remaining sum at family, calculate of the third account of second user under first account book
Two new balances；Alternatively, the third presets the 4th account that remaining sum calculation formula is additionally operable to the first user under second account book
The default exchange trading share is deducted in the remaining sum at family, calculates the of the 4th account of the first user under second account book
Four new balances.
Preferably, the step B replaces with following steps：
The first ciphertext and the second ciphertext after electronic signature are received, and by the first ciphertext and the second ciphertext after electronic signature
It writes on the shared assets account book on each node of block chain；Wherein, the first ciphertext after the electronic signature and second close
The generating process of text is as follows：
By first user by the first default exchange calculation formula and based on the default exchange rate and described first
Ciphertext calculates exchange trading share, the encryption exchange trading share and corresponding of second account book for second account book
Trade share privacy secret key, and generate the encryption exchange trading share of second account book and corresponding trade share privacy secret key
The second ciphertext；First ciphertext and second ciphertext are issued the second user by first user；If described
Two users confirm the default exchange trading share and default exchange rate, then the second user is to first ciphertext and described
Second ciphertext signs electronically.
In addition, to achieve the above object, the present invention also provides a kind of electronic device, the electronic device include memory,
Processor is stored with the more account book fund transfer systems based on block chain that can be run on the processor, institute on the memory
It states when more account book fund transfer systems based on block chain are performed by the processor and realizes following steps：
If the first user account of the first user is initiated and second user under the second account book under the first account book in block chain
The transaction request of second user account then receives the first ciphertext that first user encrypts generation in advance；The transaction request
For the request for exchanging default exchange trading share by default exchange rate, first ciphertext is default exchange trading share
The first ciphertext of generation is encrypted using the second preset password formula and corresponding trade share privacy secret key；
It is described second by the first default exchange calculation formula and based on the default exchange rate and first ciphertext
The exchange trading share, encryption exchange trading share and corresponding trade share privacy that account book calculates second account book are secret
Key, and generate the encryption exchange trading share of second account book and the second ciphertext of corresponding trade share privacy secret key；
The of the first user under first account book is completed based on first ciphertext and the second ciphertext, and by preset rules
One user account and the transaction of the second user account of second user under second account book.
Preferably, more account book fund transfer systems based on block chain are performed by the processor realizes described in described be based on
First ciphertext and the second ciphertext, and by preset rules complete under first account book the first user account of the first user with it is described
Under second account book during the step of the transaction of the second user account of second user, specifically include：
Receive the first ciphertext after electronic signature；The first ciphertext after the electronic signature is first user by described in
After first ciphertext issues the second user, if the second user confirms default exchange trading share according to first ciphertext
With default exchange rate, then the second user electronic signature generation is carried out to first ciphertext；
The first ciphertext after the electronic signature is write on the shared assets account book on each node of block chain；
The remaining sum of the first user account of first user and described is updated under first account book according to first ciphertext
The remaining sum of the third account of second user under first account book, and the second use under second account book is updated according to second ciphertext
The remaining sum of the 4th account of first user under the remaining sum of the second user account at family and second account book.
Preferably, it is described that the first user account of first user under first account book is updated according to first ciphertext
Include the step of the remaining sum of the third account of second user under remaining sum and first account book：
According to the remaining sum of first default remaining sum calculation formula first user account of the first user under first account book
Middle to deduct the default exchange trading share, calculate the first user account of the first user under first account book first is new
Remaining sum, and will be in the first new balance that calculated update to shared assets account book；
Increased in the remaining sum of the third account of second user under first account book according to the second default remaining sum calculation formula
Add the default exchange trading share, calculate the second new balance of the third account of second user under first account book, and
It will be in the second new balance that calculated update to shared assets account book；
It is described according to second ciphertext update under second account book remaining sum of the second user account of second user and
Include the step of the remaining sum of the 4th account of the first user under second account book：
The remaining sum of remaining sum calculation formula second user account of second user under second account book is preset according to third
Middle to deduct the default exchange trading share, the third for calculating the second user account of second user under second account book is new
Remaining sum, and will be in the third new balance that calculated update to shared assets account book；
Increased in the remaining sum of the 4th account of the first user under second account book according to the 4th default remaining sum calculation formula
Add the default exchange trading share, calculate the 4th new balance of the 4th account of the first user under second account book, and
It will be on the "four news" (new ideas balance updates that calculated to shared assets account book.
Further, to achieve the above object, the present invention also provides a kind of computer readable storage medium, the computers
Readable storage medium storing program for executing is stored with more account book fund transfer systems based on block chain, and more account book fund transfer systems based on block chain can
It is performed by least one processor, so that at least one processor performs more account books based on block chain as described above and transfers accounts
The step of method.
More account book transfer account methods, system and readable storage medium storing program for executing proposed by the present invention based on block chain, in block chain
The first user account of the first user initiates to preset with the second user account of second user under the second account book under first account book
After the transaction request that exchange trading share is exchanged by default exchange rate, receive first user and handed in advance for default exchange
The first ciphertext of generation is encrypted using the second preset password formula and corresponding trade share privacy secret key for easy share；Pass through
First default exchange calculation formula is simultaneously based on the default exchange rate and first ciphertext, and generation is calculated for second account book
The encryption exchange trading share of second account book and the second ciphertext of corresponding trade share privacy secret key；Based on described first
Ciphertext and the second ciphertext, and by the first user account and described second of the first user under preset rules completion first account book
The transaction of the second user account of second user under account book.Due to can hand over the default exchange of the first user account under the first account book
The first ciphertext of generation is encrypted using the second preset password formula and corresponding trade share privacy secret key in easy share, and is institute
State the second account book calculates the encryption exchange trading share for generating second account book and corresponding trade share privacy secret key the
Two ciphertexts complete the first user account and second account under first account book based on first ciphertext and the second ciphertext
The transactional operation of this lower second user account, it is close to decrypt described first for only the first user or second user in process of exchange
To know the specific exchange trading share data of transaction, other nodes on block chain can not be understood specifically for text or the second ciphertext
Exchange trading share data, so as to realize more accounts in the case of trading information safety in block chain technology scene is effectively ensured
This transfer operation.
Description of the drawings
Fig. 1 is the running environment schematic diagram of more 10 preferred embodiments of account book fund transfer system the present invention is based on block chain；
Fig. 2 is the flow diagram of more one embodiments of account book transfer account method the present invention is based on block chain.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before creative work is made
All other embodiments obtained are put, shall fall within the protection scope of the present invention.
It should be noted that the description for being related to " first ", " second " etc. in the present invention is only used for description purpose, and cannot
It is interpreted as indicating or implies its relative importance or imply the quantity of the technical characteristic indicated by indicating.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the skill between each embodiment
Art scheme can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when technical solution
Will be understood that the combination of this technical solution is not present with reference to there is conflicting or can not realize when, also not the present invention claims
Protection domain within.
The present invention provides a kind of more account book fund transfer systems based on block chain.Referring to Fig. 1, it is that the present invention is based on block chains
More 10 preferred embodiments of account book fund transfer system running environment schematic diagram.
In the present embodiment, more account book fund transfer systems 10 based on block chain are installed and run on electronic device 1
In.The electronic device 1 may include, but be not limited only to, memory 11, processor 12 and network interface 13.Fig. 1, which is illustrated only, to be had
The electronic device 1 of component 11-13, it should be understood that being not required for implementing all components shown, the implementation that can be substituted
More or less components.
The electronic device 1 connects network (Fig. 1 is not marked) by network interface 13, obtains information.The network can be with
It is intranet (Intranet), internet (Internet), global system for mobile communications (Global System of
Mobile communication, GSM), wideband code division multiple access (Wideband Code Division Multiple
Access, WCDMA), 4G networks, 5G networks, bluetooth (Bluetooth), Wi-Fi, the wirelessly or non-wirelessly network such as speech path network.
The memory 11 is the readable computer storage medium of at least one type, and the memory 11 is implemented at some
Can be the internal storage unit of the electronic device 1 in example, such as the hard disk or memory of the electronic device 1.The memory
11 can also be in further embodiments the External memory equipment of the electronic device 1, such as are equipped on the electronic device 1
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card,
Flash card (Flash Card) etc..Further, the memory 11 can also both include the storage inside of the electronic device 1
Unit also includes External memory equipment.The memory 11 is installed on the application software of the electronic device 1 and each for storing
Class data, such as described program code of more account book fund transfer systems 10 based on block chain etc..The memory 11 can also be used
In temporarily storing the data that have exported or will export.
The processor 12 can be in some embodiments a central processing unit (Central Processing Unit,
CPU), microprocessor or other data processing chips, for running the program code stored in the memory 11 or processing number
According to, such as perform described more account book fund transfer systems 10 based on block chain etc..
The network interface 13 may include radio network interface or wired network interface, which is commonly used in
Communication connection is established between the electronic device 1 and other electronic equipments.
More account book fund transfer systems 10 based on block chain include at least one computer being stored in the memory 11
Readable instruction, at least one computer-readable instruction can be performed by the processor 12, to realize each embodiment of the application.
Wherein, following step is realized when above-mentioned more account book fund transfer systems 10 based on block chain are performed by the processor 12
Suddenly：
Step S1, if the first user account of the first user is initiated and under the second account book second under the first account book in block chain
The transaction request of the second user account of user then receives the first ciphertext that first user encrypts generation in advance；The friendship
Easily request is the request for exchanging default exchange trading share by default exchange rate, and first ciphertext is that default exchange is handed over
The first ciphertext of generation is encrypted using the second preset password formula and corresponding trade share privacy secret key for easy share.
In the present embodiment, first by the user in block chain or mechanism by oneself each user under each account book
The remaining sum of account is encrypted, and using the first preset password formula and corresponding remaining sum privacy secret key by oneself in each account
This lower encrypted remaining sum of each user account is write by the intelligent contract of block chain on each node of the block chain
On shared assets account book.For example, using Pederson Commitment algorithms, the first preset password formula is a'ij=g^
aij*h^xij, alternatively, a'ij=h^aij*g^xij, wherein, aijRepresent the remaining sum of j-th of user account under the i-th account book, xijGeneration
The remaining sum privacy secret key of j-th of user account under the i-th account book of table, a'ijRepresent adding for j-th of user account under the i-th account book
Close remaining sum, g and h are the base in discrete logarithm problem, and h=g^c, c are unknown number, and i and j are positive integer.
The first user account hair of the first user under the first account book (for example, first account book can be RMB account book)
It rises default exchange with the second user account of second user under the second account book (for example, second account book can be a dollar account book)
Trade share is exchanged by default exchange rate, and (the default exchange trading share and the default exchange rate can carry in intelligent contract
Preceding setting) transaction request before, by first user for the default exchange trading share using the second preset password formula and
The first ciphertext of generation is encrypted in corresponding trade share privacy secret key.For example, the second preset password formula is t'1ij=g
^tij*h^zij, alternatively, t'1ij=h^tij*g^zij, wherein, tijRepresent the exchange trading of j-th of user account under the i-th account book
Share, zijRepresent the exchange trading share privacy secret key of j-th of user account under the i-th account book, t'1ijIt represents under the i-th account book
The encryption exchange trading share of j-th of first user accounts, g and h are base, and h is a n times side of g, and n is positive integer, and i and j are
Positive integer.
Step S2 by the first default exchange calculation formula and is based on the default exchange rate and first ciphertext, is
Second account book calculates the exchange trading share, encryption exchange trading share and corresponding trade share of second account book
Privacy secret key, and generate second account book encryption exchange trading share and corresponding trade share privacy secret key it is second close
Text.
In the present embodiment, if confirming, the transaction is that this is preset exchange trading share using default exchange rate e (for example, people
People's coin is 7 to the exchange rate of dollar, then e=7) it is exchanged, then the first default exchange calculation formula is passed through by intelligent contract
And based on the default exchange rate e and the first ciphertext, calculate the exchange trading share of the second account book for the second account book, encryption is converted
Trade share and corresponding trade share privacy secret key are changed, and the encryption exchange of the second account book is directly generated inside intelligent contract
Second ciphertext of trade share and corresponding trade share privacy secret key.For example, the first default transaction change calculation formula
For t'2ij=(t'1ij) ^e=(g^tij*h^zij) ^e,Alternatively,Its
In, tij* e represents the exchange trading share of j-th of user account under the i-th account book, zij* e represents j-th of use under the i-th account book
The exchange trading share privacy secret key of family account, t'2ijFriendship is exchanged in the encryption for representing j-th of second user account under the i-th account book
Easy share, g and h are base, and h is a n times side of g, and n is positive integer, and i and j are positive integer.
Step S3 is completed based on first ciphertext and the second ciphertext, and by preset rules first under first account book
The first user account of user and the transaction of the second user account of second user under second account book.
In the present embodiment, the of the first user under first account book can be completed based on first ciphertext and the second ciphertext
One user account and the transaction of the second user account of second user under second account book.It for example, can be by default exchange trading
Share is pressed default exchange rate first user account of the first user under first account book and is used under second account book second
Money transfer transactions are carried out between the second user account at family.Can also by the first user in first account book (for example, first account book
Can be RMB account book) and second account book (for example, second account book can be a dollar account book) under all users
Account is carried out at the same time update (such as balance updates), by second user in first account book (for example, first account book can be
RMB account book) and second account book (for example, second account book can be a dollar account book) under all user accounts it is same
When be updated (such as balance updates).For example, if first will exchange dollar by RMB with second, first and second in the present embodiment
RMB and the account of dollar can realize while update, complete the privacy that more account books are transferred accounts under block chain technology scene and hand over
Easily.
Compared with prior art, the first user account of the present embodiment first user under the first account book in block chain is initiated
The friendship for exchanging default exchange trading share by default exchange rate with the second user account of second user under the second account book
Easily after request, receive first user and use the second preset password formula and corresponding friendship for default exchange trading share in advance
The first ciphertext of generation is encrypted in easy share privacy secret key；It is converted by the first default exchange calculation formula and based on described preset
Rate and first ciphertext are changed, the encryption exchange trading share and correspondence for generating second account book are calculated for second account book
Trade share privacy secret key the second ciphertext；Based on first ciphertext and the second ciphertext, and as described in being completed preset rules
The first user account of first user and the transaction of the second user account of second user under second account book under first account book.
Due to can be to the default exchange trading share of the first user account under the first account book using the second preset password formula and corresponding
The first ciphertext of generation is encrypted in trade share privacy secret key, and is calculated for second account book and generate adding for second account book
Second ciphertext of close exchange trading share and corresponding trade share privacy secret key, based on first ciphertext and the second ciphertext come
The first user account and the transactional operation of second user account under second account book under first account book are completed, was being merchandised
Only the first user or second user can decrypt first ciphertext or the second ciphertext to know that specific exchange of transaction is handed in journey
Easy share data, other nodes on block chain can not understand specific exchange trading share data, so as to which area be effectively ensured
In block chain technology scene in the case of trading information safety, more account book transfer operations are realized.
In an optional embodiment, on the basis of the embodiment of above-mentioned Fig. 1, more account books based on block chain turn
When account system 10 performs the realization step S3 by the processor 12, specifically include：
Receive the first ciphertext after electronic signature；The first ciphertext after the electronic signature is first user by described in
After first ciphertext issues the second user, if the second user confirms default exchange trading share according to first ciphertext
With default exchange rate, then the second user electronic signature generation is carried out to first ciphertext.After the electronic signature
First ciphertext is write on the shared assets account book on each node of block chain.In the present embodiment, the first user is by the first ciphertext
Issue second user；If the second user confirms the default exchange trading share and default exchange rate, the second user is to this
First ciphertext signs electronically, and the first ciphertext after electronic signature is write the block by the intelligent contract of the block chain
On shared assets account book on each node of chain, alternatively, the second user by the first ciphertext after electronic signature give this
The first ciphertext after electronic signature is write the block chain by one user for first user by the intelligent contract of the block chain
On shared assets account book on each node.
The remaining sum of the first user account of first user and described is updated under first account book according to first ciphertext
The remaining sum of the third account of second user under first account book, and the second use under second account book is updated according to second ciphertext
The remaining sum of the 4th account of first user under the remaining sum of the second user account at family and second account book.
In the present embodiment, the first user under first account book (for example, first account book can be RMB account book)
First user account initiates the second user with second user under the second account book (for example, second account book can be a dollar account book)
After the default trade share of account and the transaction request of default exchange valency, the intelligent contract of the block chain is according to first ciphertext
Update the third account of the remaining sum of the first user account of the first user and second user under first account book under first account book
Remaining sum, and the remaining sum of the 4th account of the first user and second account book under second account book are updated according to second ciphertext
The remaining sum of the second user account of lower second user.Wherein, the first user account and the 4th account are all the accounts of the first user,
Account of respectively the first user under first account book and second account book, for example, the first user account is the first user's
RMB account book account, the 4th account are the dollar account book account of the first user.Second user account and third account are all
The account of the account of two users, respectively second user under second account book and first account book, for example, second user account
For the dollar account book account of second user, third account is the RMB account book account of second user.
Specifically, it is described to be updated under first account book more than the first user account of the first user according to first ciphertext
Include the step of the remaining sum of the third account of second user under volume and first account book：
Intelligent contract is according to the first user account of first default remaining sum calculation formula first user under first account book
Remaining sum in deduct the default exchange trading share, calculate of the first user account of the first user under first account book
One new balance, and will be in the first new balance that calculated update to shared assets account book.For example, the first default remaining sum calculates
Formula is a1ij"=a1ij'/t1ij'=(g^a1ij*h^x1ij)/(g^tij*h^zij)=g^ (a1ij–tij)*h^(x1ij–zij) or
Person, a1ij"=h^ (a1ij–tij)*g^(x1ij–zij).Wherein, a1ijRepresent the remaining of j-th of first user accounts under the i-th account book
Volume, x1ijRepresent the remaining sum privacy secret key of j-th of first user accounts under the i-th account book, a1ij" represent j-th under the i-th account book
The encryption new balance of first user account, g and h are base, and h is a n times side of g, and i and j are positive integer, " a1ij-tij" represent
The new balance of j-th of first user accounts under i account books, " x1ij-zij" represent j-th of first user accounts under the i-th account book
Newly obscure remaining sum privacy secret key, tijRepresent the trade share of j-th of first user accounts under the i-th account book, zijRepresent the i-th account
The trade share privacy secret key of j-th of first user accounts under this.
Intelligent contract is according to the second default remaining sum calculation formula under first account book more than the third account of second user
Increase the default exchange trading share in volume, calculate the second Xinyu of the third account of second user under first account book
Volume, and will be in the second new balance that calculated update to shared assets account book.For example, the second default remaining sum calculation formula is
a3ij"=a3ij'*t1ij'=(g^a3ij*h^y3ij)*(g^tij*h^zij)=g^ (a3ij+tij)*h^(y3ij+zij), alternatively, a3ij”
=h^ (a3ij+tij)*g^(y3ij+zij), a3ijRepresent the remaining sum of j-th of third account under the i-th account book, Y3ijRepresent the i-th account book
Under j-th of third account remaining sum privacy secret key, a3ij" the encryption new balance of j-th of third account under the i-th account book is represented,
G and h is base, and h is a n times side of g, and i and j are positive integer, " a3ij+tij" represent j-th of third account under the i-th account book
New balance, " y3ij+zij" represent the new of j-th of third account under the i-th account book and obscure remaining sum privacy secret key, tijRepresent the i-th account
The trade share of j-th of third account under this, zijThe trade share privacy for representing j-th of third account under the i-th account book is secret
Key.
It is described according to second ciphertext update under second account book remaining sum of the 4th account of the first user and this second
Include the step of the remaining sum of the second user account of second user under account book：
Intelligent contract presets the second user account of remaining sum calculation formula second user under second account book according to third
Remaining sum in deduct the default exchange trading share, calculate of the second user account of second user under second account book
Three new balances, and will be in the third new balance that calculated update to shared assets account book.For example, the third presets remaining sum calculating
Formula is a2ij"=a2ij'/t2ij'=(g^a2ij*h^x2ij)/(g^(tij*e)*h^(zij* e))=g^ (a2ij-(tij*e))*h^
(x2ij-(zijE)) or a *2ij"=h^ (a2ij-(tij*e))*g^(x2ij-(zij* e)), wherein, a2ijIt represents under the i-th account book
The remaining sum of j-th of second user account, x2ijThe remaining sum privacy secret key of j-th of second user account under the i-th account book is represented,
a2ij" represent the encryption new balance of j-th of second user account under the i-th account book, g and h are base, and h is a n times side of g, i and
J is positive integer, " a2ij-(tij* the new balance of j-th of second user account under the i-th account book, " x e) " are represented2ij-(zij*e)”
It represents the new of j-th of second user account under the i-th account book and obscures remaining sum privacy secret key, " tij* e " represents the jth under the i-th account book
The trade share of a second user account, " zij* e " represents the trade share privacy of j-th of second user account under the i-th account book
Secret key.
Intelligent contract is according to the 4th default remaining sum calculation formula under second account book more than the 4th account of the first user
Increase the default exchange trading share in volume, calculate the 4th Xinyu of the 4th account of the first user under second account book
Volume, and will be on the "four news" (new ideas balance updates that calculated to shared assets account book.For example, the 4th default remaining sum calculation formula is
a4ij"=a4ij'*t2ij'=(g^a4ij*h^y4ij)*(g^(tij*e)*h^(zij* e))=g^ (a4ij+(tij*e))*h^(y4ij+
(zij* e)), alternatively, a4ij"=h^ (a4ij+(tij*e))*g^(y4ij+(zij* e)), a4ijRepresent j-th the 4th under the i-th account book
The remaining sum of account, Y4ijRepresent the remaining sum privacy secret key of j-th of the 4th accounts under the i-th account book, a4ij" represent under the i-th account book
The encryption new balance of j-th of the 4th accounts, g and h are base, and h is a n times side of g, and i and j are positive integer, " a4ij+(tij*e)”
Represent the new balance of j-th of the 4th accounts under the i-th account book, " y4ij+(zij* j-th of the 4th accounts under the i-th account book e) " are represented
New obscure remaining sum privacy secret key, " tij* e " represents the trade share of j-th of the 4th accounts under the i-th account book, " zij* e " is represented
The trade share privacy secret key of j-th of the 4th accounts under i-th account book.
Further, third presets the third account that remaining sum calculation formula can also be the second user under first account book
Remaining sum in increase the default exchange trading share, calculate the third account of second user under first account book second is new
Remaining sum, and will be in the second new balance that calculated update to shared assets account book.Third presets remaining sum calculation formula
The default exchange trading share is deducted in the remaining sum of the 4th account of the first user under second account book, calculate this second
4th new balance of the 4th account of the first user under account book, and by the "four news" (new ideas balance updates calculated to shared assets account book
On.
In an optional embodiment, the step S2 replaces with following steps：
The first ciphertext and the second ciphertext after electronic signature are received, and by the first ciphertext and the second ciphertext after electronic signature
It writes on the shared assets account book on each node of block chain；Wherein, the first ciphertext after the electronic signature and second close
The generating process of text is as follows：
By first user by the first default exchange calculation formula and based on the default exchange rate and described first
Ciphertext calculates exchange trading share, the encryption exchange trading share and corresponding of second account book for second account book
Trade share privacy secret key, and generate the encryption exchange trading share of second account book and corresponding trade share privacy secret key
The second ciphertext；First ciphertext and second ciphertext are issued the second user by first user；If described
Two users confirm the default exchange trading share and default exchange rate, then the second user is to first ciphertext and described
Second ciphertext signs electronically.
In the present embodiment, if being confirmed as the default exchange trading share using default exchange rate e, passed through by the first user
First default exchange calculation formula is simultaneously based on the default exchange rate e and the first ciphertext, and the second account book is calculated for the second account book
Exchange trading share, encryption exchange trading share and corresponding trade share privacy secret key, and generate the encryption of the second account book
Second ciphertext of exchange trading share and corresponding trade share privacy secret key.First user is by the first ciphertext and the second ciphertext
Issue second user.If the second user confirms the default exchange trading share and default exchange rate, the second user is to this
First ciphertext and the second ciphertext sign electronically, and the first ciphertext after electronic signature and the second ciphertext are passed through the block chain
Intelligent contract write on the shared assets account book on each node of the block chain, alternatively, the second user will sign electronically
The first ciphertext and the second ciphertext afterwards is sent to first user, for first user by the first ciphertext after electronic signature and
Two ciphertexts are write by the intelligent contract of the block chain on the shared assets account book on each node of the block chain.
Further, third can also be created according to this on the basis of above-described embodiment, in the present embodiment, the 4th very
It transfers accounts while to more account books.For example, if there is third account book needs to carry out share exchange in real time, it can be by following
Step is realized：(1), third account book and the first account book or the exchange volume f with the second account book are set on intelligent contract；(2), by intelligence
Energy contract or the first user are calculated by the first default exchange calculation formula and exchange volume f to be needed to correspond to account on third account book
The volume of transferring accounts at family；(3), the 5th default remaining sum calculation formula and the 6th default remaining sum calculation formula are set up on third account book, is led to
Crossing intelligent contract increases and deducts the share on corresponding account.
In a specific embodiment, it is illustrated by taking account book 1 and account book 2 as an example below：
Step 1：A kind of password with additive homomorphism characteristic of remaining sum for each user account under each account book
Formula is encrypted, and only the owner of account can decrypt the remaining sum for reading oneself account by oneself " account privacy secret key ".
It illustrates by taking Pederson Commitment and ECC (elliptic curve) as an example, certainly, does not also limit using other herein
Such as RSA, Diffie-Hellman.
Such as available Pederson Commitment represent each account, and the remaining sum that first account will be used in account book 1 exchanges account for
Second account book 2 remaining sum, such as first by RMB (account book 1) with second exchange dollar (account book 2), first can be in account book 1 groups of people
People's coin remaining sum is given to second, and the dollar of oneself then can be given to first by second in account book 2.For account book 1, a1=first account book is defined
1 remaining sum, 1 remaining sum of first account book after a1 '=code obfuscation, 1 remaining sum privacy secret key of x1=first account book, then more than first account
Volume is：(elliptic curve formula is a1 '=g^a1*h^x1：A1 '=a1G+x1H).Define b1=second account RMB remaining sums, b1 '
Second account RMB remaining sum after=code obfuscation, y1=second account RMB remaining sum privacy secret keys, then second account balance be：
(elliptic curve formula is b1 '=g^b1*h^y1：B1 '=b1G+y1H).For account book 2, a2=first account book more than 2 is defined
Volume, 2 remaining sum of first account book after a2 '=code obfuscation, 2 remaining sum privacy secret key of x2=first account book, then first account balance
For：(elliptic curve formula is a2 '=g^a2*h^x2：A2 '=a2G+x2H).Definition b2=second account RMB remaining sums, b2 '=
Second account RMB remaining sum after code obfuscation, y2=second account RMB remaining sum privacy secret keys, then second account balance be：b2’
(elliptic curve formula is=g^b2*h^y2：B2 '=b2G+y2H).
Step 2：If the first remaining sum of account book 1 exchanges remaining sum of the second in account book 2, first can create two ciphertexts, first
A is 1 trade share of account book protected with additive homomorphism ciphertext, and second is by encrypting converting for the account book 1 obscured and account book 2
Change valency (such as exchange rate).
The initiator's (first) that transfers accounts can voluntarily generate the first ciphertext homomorphism privacy secret key and the second ciphertext privacy it is secret
They and the first ciphertext and the second ciphertext are simultaneously issued counterpart's (second) by key, and are obtaining second accreditation and to the first ciphertext and the
The signature of entire transaction and Party B is dealt into block chain network that (Party B's digital signature is represented to handing over after two ciphertext digital signature
The accreditation of easy share and exchange rate), it is such as dealt on the intelligent contract of block chain.Such as define 1 trade share of t=account books, t '=close
Code obscure after trade share, z=trade share privacy secret keys, then the first ciphertext (trade share) be:T '=g^t*h^z is (ellipse
Circular curve formula is：T '=tG+zH).Define e=exchange rates.
Step 3：Block chain can update account book 2 while account book 1 is updated, update account book 2 after transaction request is received
The step of have following three sub-steps：
Step 3 A deducts trade share, and simultaneously in the second account balance of account book 1 in the first account balance of account book 1
Increase trade share.First account is in 1 new share of account book：A1 "=a1 '/t ', a1 "=(g^a1*h^x1)/(g^t*h^z), a1 "=
(elliptic curve formula is g^ (a1-t) * h^ (x1-z)：A1 "=(a1-t) G+ (x1-z) H).First account new balance=a1-t, first
Account newly obscures privacy secret key x1 '=(x1-z), and second account is in 1 new share of account book：B1 "=b1 ' * t ', b1 "=(g^b1*h^
Y1 (elliptic curve formula is) * (g^t*h^z), b1 "=g^ (b1+t) * h^ (y1+z)：B1 "=(b1+t) G+ (y1+z) H).Second
Account new balance b1 '=b1+t, second account newly obscure privacy secret key y1 '=y1+z.
Step 3 B, the intelligent contract on block chain is calculated by turnover (the first ciphertext) and exchange rate to be needed in account book 2
Carry out the corresponding trade share of transfer operation.The operation need to be carried out in the case where not decrypted to turnover, (the transaction of the first ciphertext
Share):(elliptic curve formula is t '=g^t*h^z：T '=tG+zH), define transaction change rate:e.
The share that first account and second account are transferred the possession of in account book 2 is calculated under non-decrypting state；It merchandises since t represents account book 1
Share, e represent exchange rate, so te represents the transfer shares of account first and account second in account book 2.Then 2 trade share of account book=
(elliptic curve formula is by t2=t*e=te, 2 trade share of account book (ciphertext) t2 '=(g^t*h^z) ^e=(g^te*h^ze)：
T2 '=(tG+zH) * e=teG+zeH).
Step 3 C plus trade share in the first account balance of account book 2, and subtracts in 2 second account balance of account book simultaneously
Go trade share.First account is in 2 new share of account book：A2 "=a2 ' * t2 ', a2 "=(g^a2*h^x2) * (g^te*h^ze), a2 "
(elliptic curve formula is=g^ (a2+te) * h^ (x2+ze)：A2 "=(a2+te) G+ (x2+ze) H).First account new balance a2 '
=a2+te, first account newly obscure privacy secret key x2 '=x2+ze.Second account is in 1 new share of account book：B2 "=b2 '/t ', b2 "=
(g^b2*h^y2) (elliptic curve formula is/(g^te*h^ze), b2 "=g^ (b2-te) * h^ (y2-ze)：B2 "=(b2-te) G
+ (y2-ze) H), second account new balance b2 '=b2-te, second account newly obscures privacy secret key y2 '=y2-ze.
As shown in Fig. 2, Fig. 2 is the flow diagram of more one embodiments of account book transfer account method the present invention is based on block chain,
More account book transfer account methods based on block chain include the following steps：
Step S10, if the first user account of the first user is initiated and under the second account book the under the first account book in block chain
The transaction request of the second user account of two users then receives the first ciphertext that first user encrypts generation in advance；It is described
Transaction request is the request for exchanging default exchange trading share by default exchange rate, and first ciphertext is exchanged to be default
The first ciphertext of generation is encrypted using the second preset password formula and corresponding trade share privacy secret key for trade share.
In the present embodiment, first by the user in block chain or mechanism by oneself each user under each account book
The remaining sum of account is encrypted, and using the first preset password formula and corresponding remaining sum privacy secret key by oneself in each account
This lower encrypted remaining sum of each user account is write by the intelligent contract of block chain on each node of the block chain
On shared assets account book.For example, using Pederson Commitment algorithms, the first preset password formula is a'ij=g^
aij*h^xij, alternatively, a'ij=h^aij*g^xij, wherein, aijRepresent the remaining sum of j-th of user account under the i-th account book, xijGeneration
The remaining sum privacy secret key of j-th of user account under the i-th account book of table, a'ijRepresent adding for j-th of user account under the i-th account book
Close remaining sum, g and h are the base in discrete logarithm problem, and h=g^c, c are unknown number, and i and j are positive integer.
The first user account hair of the first user under the first account book (for example, first account book can be RMB account book)
It rises default exchange with the second user account of second user under the second account book (for example, second account book can be a dollar account book)
Trade share is exchanged by default exchange rate, and (the default exchange trading share and the default exchange rate can carry in intelligent contract
Preceding setting) transaction request before, by first user for the default exchange trading share using the second preset password formula and
The first ciphertext of generation is encrypted in corresponding trade share privacy secret key.For example, the second preset password formula is t'1ij=g
^tij*h^zij, alternatively, t'1ij=h^tij*g^zij, wherein, tijRepresent the exchange trading of j-th of user account under the i-th account book
Share, zijRepresent the exchange trading share privacy secret key of j-th of user account under the i-th account book, t'1ijIt represents under the i-th account book
The encryption exchange trading share of j-th of first user accounts, g and h are base, and h is a n times side of g, and n is positive integer, and i and j are
Positive integer.
Step S20 by the first default exchange calculation formula and is based on the default exchange rate and first ciphertext, is
Second account book calculates the exchange trading share, encryption exchange trading share and corresponding trade share of second account book
Privacy secret key, and generate second account book encryption exchange trading share and corresponding trade share privacy secret key it is second close
Text.
In the present embodiment, if confirming, the transaction is that this is preset exchange trading share using default exchange rate e (for example, people
People's coin is 7 to the exchange rate of dollar, then e=7) it is exchanged, then the first default exchange calculation formula is passed through by intelligent contract
And based on the default exchange rate e and the first ciphertext, calculate the exchange trading share of the second account book for the second account book, encryption is converted
Trade share and corresponding trade share privacy secret key are changed, and the encryption exchange of the second account book is directly generated inside intelligent contract
Second ciphertext of trade share and corresponding trade share privacy secret key.For example, the first default transaction change calculation formula
For t'2ij=(t'1ij) ^e=(g^tij*h^zij) ^e,Alternatively,Wherein,
tij* e represents the exchange trading share of j-th of user account under the i-th account book, zij* e represents j-th of user under the i-th account book
The exchange trading share privacy secret key of account, t'2ijRepresent the encryption exchange trading of j-th of second user account under the i-th account book
Share, g and h are base, and h is a n times side of g, and n is positive integer, and i and j are positive integer.
Step S30 is completed based on first ciphertext and the second ciphertext, and by preset rules first under first account book
The first user account of user and the transaction of the second user account of second user under second account book.
In the present embodiment, the of the first user under first account book can be completed based on first ciphertext and the second ciphertext
One user account and the transaction of the second user account of second user under second account book.It for example, can be by default exchange trading
Share is pressed default exchange rate first user account of the first user under first account book and is used under second account book second
Money transfer transactions are carried out between the second user account at family.Can also by the first user in first account book (for example, first account book
Can be RMB account book) and second account book (for example, second account book can be a dollar account book) under all users
Account is carried out at the same time update (such as balance updates), by second user in first account book (for example, first account book can be
RMB account book) and second account book (for example, second account book can be a dollar account book) under all user accounts it is same
When be updated (such as balance updates).For example, if first will exchange dollar by RMB with second, first and second in the present embodiment
RMB and the account of dollar can realize while update, complete the privacy that more account books are transferred accounts under block chain technology scene and hand over
Easily.
Compared with prior art, the first user account of the present embodiment first user under the first account book in block chain is initiated
The friendship for exchanging default exchange trading share by default exchange rate with the second user account of second user under the second account book
Easily after request, receive first user and use the second preset password formula and corresponding friendship for default exchange trading share in advance
The first ciphertext of generation is encrypted in easy share privacy secret key；It is converted by the first default exchange calculation formula and based on described preset
Rate and first ciphertext are changed, the encryption exchange trading share and correspondence for generating second account book are calculated for second account book
Trade share privacy secret key the second ciphertext；Based on first ciphertext and the second ciphertext, and as described in being completed preset rules
The first user account of first user and the transaction of the second user account of second user under second account book under first account book.
Due to can be to the default exchange trading share of the first user account under the first account book using the second preset password formula and corresponding
The first ciphertext of generation is encrypted in trade share privacy secret key, and is calculated for second account book and generate adding for second account book
Second ciphertext of close exchange trading share and corresponding trade share privacy secret key, based on first ciphertext and the second ciphertext come
The first user account and the transactional operation of second user account under second account book under first account book are completed, was being merchandised
Only the first user or second user can decrypt first ciphertext or the second ciphertext to know that specific exchange of transaction is handed in journey
Easy share data, other nodes on block chain can not understand specific exchange trading share data, so as to which area be effectively ensured
In block chain technology scene in the case of trading information safety, more account book transfer operations are realized.
In an optional embodiment, on the basis of above-described embodiment, the step S30 is specifically included：
Receive the first ciphertext after electronic signature；The first ciphertext after the electronic signature is first user by described in
After first ciphertext issues the second user, if the second user confirms default exchange trading share according to first ciphertext
With default exchange rate, then the second user electronic signature generation is carried out to first ciphertext.After the electronic signature
First ciphertext is write on the shared assets account book on each node of block chain.In the present embodiment, the first user is by the first ciphertext
Issue second user；If the second user confirms the default exchange trading share and default exchange rate, the second user is to this
First ciphertext signs electronically, and the first ciphertext after electronic signature is write the block by the intelligent contract of the block chain
On shared assets account book on each node of chain, alternatively, the second user by the first ciphertext after electronic signature give this
The first ciphertext after electronic signature is write the block chain by one user for first user by the intelligent contract of the block chain
On shared assets account book on each node.
The remaining sum of the first user account of first user and described is updated under first account book according to first ciphertext
The remaining sum of the third account of second user under first account book, and the second use under second account book is updated according to second ciphertext
The remaining sum of the 4th account of first user under the remaining sum of the second user account at family and second account book.
In the present embodiment, the first user under first account book (for example, first account book can be RMB account book)
First user account initiates the second user with second user under the second account book (for example, second account book can be a dollar account book)
After the default trade share of account and the transaction request of default exchange valency, the intelligent contract of the block chain is according to first ciphertext
Update the third account of the remaining sum of the first user account of the first user and second user under first account book under first account book
Remaining sum, and the remaining sum of the 4th account of the first user and second account book under second account book are updated according to second ciphertext
The remaining sum of the second user account of lower second user.Wherein, the first user account and the 4th account are all the accounts of the first user,
Account of respectively the first user under first account book and second account book, for example, the first user account is the first user's
RMB account book account, the 4th account are the dollar account book account of the first user.Second user account and third account are all
The account of the account of two users, respectively second user under second account book and first account book, for example, second user account
For the dollar account book account of second user, third account is the RMB account book account of second user.
Specifically, it is described to be updated under first account book more than the first user account of the first user according to first ciphertext
Include the step of the remaining sum of the third account of second user under volume and first account book：
Intelligent contract is according to the first user account of first default remaining sum calculation formula first user under first account book
Remaining sum in deduct the default exchange trading share, calculate of the first user account of the first user under first account book
One new balance, and will be in the first new balance that calculated update to shared assets account book.For example, the first default remaining sum calculates
Formula is a1ij"=a1ij'/t1ij'=(g^a1ij*h^x1ij)/(g^tij*h^zij)=g^ (a1ij–tij)*h^(x1ij–zij) or
Person, a1ij"=h^ (a1ij–tij)*g^(x1ij–zij).Wherein, a1ijRepresent the remaining of j-th of first user accounts under the i-th account book
Volume, x1ijRepresent the remaining sum privacy secret key of j-th of first user accounts under the i-th account book, a1ij" represent j-th under the i-th account book
The encryption new balance of first user account, g and h are base, and h is a n times side of g, and i and j are positive integer, " a1ij-tij" represent
The new balance of j-th of first user accounts under i account books, " x1ij-zij" represent j-th of first user accounts under the i-th account book
Newly obscure remaining sum privacy secret key, tijRepresent the trade share of j-th of first user accounts under the i-th account book, zijRepresent the i-th account
The trade share privacy secret key of j-th of first user accounts under this.
Intelligent contract is according to the second default remaining sum calculation formula under first account book more than the third account of second user
Increase the default exchange trading share in volume, calculate the second Xinyu of the third account of second user under first account book
Volume, and will be in the second new balance that calculated update to shared assets account book.For example, the second default remaining sum calculation formula is
a3ij"=a3ij'*t1ij'=(g^a3ij*h^y3ij)*(g^tij*h^zij)=g^ (a3ij+tij)*h^(y3ij+zij), alternatively, a3ij”
=h^ (a3ij+tij)*g^(y3ij+zij), a3ijRepresent the remaining sum of j-th of third account under the i-th account book, Y3ijRepresent the i-th account book
Under j-th of third account remaining sum privacy secret key, a3ij" the encryption new balance of j-th of third account under the i-th account book is represented,
G and h is base, and h is a n times side of g, and i and j are positive integer, " a3ij+tij" represent j-th of third account under the i-th account book
New balance, " y3ij+zij" represent the new of j-th of third account under the i-th account book and obscure remaining sum privacy secret key, tijRepresent the i-th account
The trade share of j-th of third account under this, zijThe trade share privacy for representing j-th of third account under the i-th account book is secret
Key.
It is described according to second ciphertext update under second account book remaining sum of the 4th account of the first user and this second
Include the step of the remaining sum of the second user account of second user under account book：
Intelligent contract presets the second user account of remaining sum calculation formula second user under second account book according to third
Remaining sum in deduct the default exchange trading share, calculate of the second user account of second user under second account book
Three new balances, and will be in the third new balance that calculated update to shared assets account book.For example, the third presets remaining sum calculating
Formula is a2ij"=a2ij'/t2ij'=(g^a2ij*h^x2ij)/(g^(tij*e)*h^(zij* e))=g^ (a2ij-(tij*e))*h^
(x2ij-(zijE)) or a *2ij"=h^ (a2ij-(tij*e))*g^(x2ij-(zij* e)), wherein, a2ijIt represents under the i-th account book
The remaining sum of j-th of second user account, x2ijThe remaining sum privacy secret key of j-th of second user account under the i-th account book is represented,
a2ij" represent the encryption new balance of j-th of second user account under the i-th account book, g and h are base, and h is a n times side of g, i and
J is positive integer, " a2ij-(tij* the new balance of j-th of second user account under the i-th account book, " x e) " are represented2ij-(zij*e)”
It represents the new of j-th of second user account under the i-th account book and obscures remaining sum privacy secret key, " tij* e " represents the jth under the i-th account book
The trade share of a second user account, " zij* e " represents the trade share privacy of j-th of second user account under the i-th account book
Secret key.
Intelligent contract is according to the 4th default remaining sum calculation formula under second account book more than the 4th account of the first user
Increase the default exchange trading share in volume, calculate the 4th Xinyu of the 4th account of the first user under second account book
Volume, and will be on the "four news" (new ideas balance updates that calculated to shared assets account book.For example, the 4th default remaining sum calculation formula is
a4ij"=a4ij'*t2ij'=(g^a4ij*h^y4ij)*(g^(tij*e)*h^(zij* e))=g^ (a4ij+(tij*e))*h^(y4ij+
(zij* e)), alternatively, a4ij"=h^ (a4ij+(tij*e))*g^(y4ij+(zij* e)), a4ijRepresent j-th the 4th under the i-th account book
The remaining sum of account, Y4ijRepresent the remaining sum privacy secret key of j-th of the 4th accounts under the i-th account book, a4ij" represent under the i-th account book
The encryption new balance of j-th of the 4th accounts, g and h are base, and h is a n times side of g, and i and j are positive integer, " a4ij+(tij*e)”
Represent the new balance of j-th of the 4th accounts under the i-th account book, " y4ij+(zij* j-th of the 4th accounts under the i-th account book e) " are represented
New obscure remaining sum privacy secret key, " tij* e " represents the trade share of j-th of the 4th accounts under the i-th account book, " zij* e " is represented
The trade share privacy secret key of j-th of the 4th accounts under i-th account book.
Further, third presets the third account that remaining sum calculation formula can also be the second user under first account book
Remaining sum in increase the default exchange trading share, calculate the third account of second user under first account book second is new
Remaining sum, and will be in the second new balance that calculated update to shared assets account book.Third presets remaining sum calculation formula
The default exchange trading share is deducted in the remaining sum of the 4th account of the first user under second account book, calculate this second
4th new balance of the 4th account of the first user under account book, and by the "four news" (new ideas balance updates calculated to shared assets account book
On.
In an optional embodiment, the step S20 can be replaced following steps：
The first ciphertext and the second ciphertext after electronic signature are received, and by the first ciphertext and the second ciphertext after electronic signature
It writes on the shared assets account book on each node of block chain；Wherein, the first ciphertext after the electronic signature and second close
The generating process of text is as follows：
By first user by the first default exchange calculation formula and based on the default exchange rate and described first
Ciphertext calculates exchange trading share, the encryption exchange trading share and corresponding of second account book for second account book
Trade share privacy secret key, and generate the encryption exchange trading share of second account book and corresponding trade share privacy secret key
The second ciphertext；First ciphertext and second ciphertext are issued the second user by first user；If described
Two users confirm the default exchange trading share and default exchange rate, then the second user is to first ciphertext and described
Second ciphertext signs electronically.
In the present embodiment, if being confirmed as the default exchange trading share using default exchange rate e, passed through by the first user
First default exchange calculation formula is simultaneously based on the default exchange rate e and the first ciphertext, and the second account book is calculated for the second account book
Exchange trading share, encryption exchange trading share and corresponding trade share privacy secret key, and generate the encryption of the second account book
Second ciphertext of exchange trading share and corresponding trade share privacy secret key.First user is by the first ciphertext and the second ciphertext
Issue second user.If the second user confirms the default exchange trading share and default exchange rate, the second user is to this
First ciphertext and the second ciphertext sign electronically, and the first ciphertext after electronic signature and the second ciphertext are passed through the block chain
Intelligent contract write on the shared assets account book on each node of the block chain, alternatively, the second user will sign electronically
The first ciphertext and the second ciphertext afterwards is sent to first user, for first user by the first ciphertext after electronic signature and
Two ciphertexts are write by the intelligent contract of the block chain on the shared assets account book on each node of the block chain.
Further, third can also be created according to this on the basis of above-described embodiment, in the present embodiment, the 4th very
It transfers accounts while to more account books.For example, if there is third account book needs to carry out share exchange in real time, it can be by following
Step is realized：(1), third account book and the first account book or the exchange volume f with the second account book are set on intelligent contract；(2), by intelligence
Energy contract or the first user are calculated by the first default exchange calculation formula and exchange volume f to be needed to correspond to account on third account book
The volume of transferring accounts at family；(3), the 5th default remaining sum calculation formula and the 6th default remaining sum calculation formula are set up on third account book, is led to
Crossing intelligent contract increases and deducts the share on corresponding account.
In a specific embodiment, it is illustrated by taking account book 1 and account book 2 as an example below：
Step 1：A kind of password with additive homomorphism characteristic of remaining sum for each user account under each account book
Formula is encrypted, and only the owner of account can decrypt the remaining sum for reading oneself account by oneself " account privacy secret key ".
It illustrates by taking Pederson Commitment and ECC (elliptic curve) as an example, certainly, does not also limit using other herein
Such as RSA, Diffie-Hellman.
Such as available Pederson Commitment represent each account, and the remaining sum that first account will be used in account book 1 exchanges account for
Second account book 2 remaining sum, such as first by RMB (account book 1) with second exchange dollar (account book 2), first can be in account book 1 groups of people
People's coin remaining sum is given to second, and the dollar of oneself then can be given to first by second in account book 2.For account book 1, a1=first account book is defined
1 remaining sum, 1 remaining sum of first account book after a1 '=code obfuscation, 1 remaining sum privacy secret key of x1=first account book, then more than first account
Volume is：(elliptic curve formula is a1 '=g^a1*h^x1：A1 '=a1G+x1H).Define b1=second account RMB remaining sums, b1 '
Second account RMB remaining sum after=code obfuscation, y1=second account RMB remaining sum privacy secret keys, then second account balance be：
(elliptic curve formula is b1 '=g^b1*h^y1：B1 '=b1G+y1H).For account book 2, a2=first account book more than 2 is defined
Volume, 2 remaining sum of first account book after a2 '=code obfuscation, 2 remaining sum privacy secret key of x2=first account book, then first account balance
For：(elliptic curve formula is a2 '=g^a2*h^x2：A2 '=a2G+x2H).Definition b2=second account RMB remaining sums, b2 '=
Second account RMB remaining sum after code obfuscation, y2=second account RMB remaining sum privacy secret keys, then second account balance be：b2’
(elliptic curve formula is=g^b2*h^y2：B2 '=b2G+y2H).
Step 2：If the first remaining sum of account book 1 exchanges remaining sum of the second in account book 2, first can create two ciphertexts, first
A is 1 trade share of account book protected with additive homomorphism ciphertext, and second is by encrypting converting for the account book 1 obscured and account book 2
Change valency (such as exchange rate).
The initiator's (first) that transfers accounts can voluntarily generate the first ciphertext homomorphism privacy secret key and the second ciphertext privacy it is secret
They and the first ciphertext and the second ciphertext are simultaneously issued counterpart's (second) by key, and are obtaining second accreditation and to the first ciphertext and the
The signature of entire transaction and Party B is dealt into block chain network that (Party B's digital signature is represented to handing over after two ciphertext digital signature
The accreditation of easy share and exchange rate), it is such as dealt on the intelligent contract of block chain.Such as define 1 trade share of t=account books, t '=close
Code obscure after trade share, z=trade share privacy secret keys, then the first ciphertext (trade share) be:T '=g^t*h^z is (ellipse
Circular curve formula is：T '=tG+zH).Define e=exchange rates.
Step 3：Block chain can update account book 2 while account book 1 is updated, update account book 2 after transaction request is received
The step of have following three sub-steps：
Step 3 A deducts trade share, and simultaneously in the second account balance of account book 1 in the first account balance of account book 1
Increase trade share.First account is in 1 new share of account book：A1 "=a1 '/t ', a1 "=(g^a1*h^x1)/(g^t*h^z), a1 "=
(elliptic curve formula is g^ (a1-t) * h^ (x1-z)：A1 "=(a1-t) G+ (x1-z) H).First account new balance=a1-t, first
Account newly obscures privacy secret key x1 '=(x1-z), and second account is in 1 new share of account book：B1 "=b1 ' * t ', b1 "=(g^b1*h^
Y1 (elliptic curve formula is) * (g^t*h^z), b1 "=g^ (b1+t) * h^ (y1+z)：B1 "=(b1+t) G+ (y1+z) H).Second
Account new balance b1 '=b1+t, second account newly obscure privacy secret key y1 '=y1+z.
Step 3 B, the intelligent contract on block chain is calculated by turnover (the first ciphertext) and exchange rate to be needed in account book 2
Carry out the corresponding trade share of transfer operation.The operation need to be carried out in the case where not decrypted to turnover, (the transaction of the first ciphertext
Share):(elliptic curve formula is t '=g^t*h^z：T '=tG+zH), define transaction change rate:e.
The share that first account and second account are transferred the possession of in account book 2 is calculated under non-decrypting state；It merchandises since t represents account book 1
Share, e represent exchange rate, so te represents the transfer shares of account first and account second in account book 2.Then 2 trade share of account book=
(elliptic curve formula is by t2=t*e=te, 2 trade share of account book (ciphertext) t2 '=(g^t*h^z) ^e=(g^te*h^ze)：
T2 '=(tG+zH) * e=teG+zeH).
Step 3 C plus trade share in the first account balance of account book 2, and subtracts in 2 second account balance of account book simultaneously
Go trade share.First account is in 2 new share of account book：A2 "=a2 ' * t2 ', a2 "=(g^a2*h^x2) * (g^te*h^ze), a2 "
(elliptic curve formula is=g^ (a2+te) * h^ (x2+ze)：A2 "=(a2+te) G+ (x2+ze) H).First account new balance a2 '
=a2+te, first account newly obscure privacy secret key x2 '=x2+ze.Second account is in 1 new share of account book：B2 "=b2 '/t ', b2 "=
(g^b2*h^y2) (elliptic curve formula is/(g^te*h^ze), b2 "=g^ (b2-te) * h^ (y2-ze)：B2 "=(b2-te) G
+ (y2-ze) H), second account new balance b2 '=b2-te, second account newly obscures privacy secret key y2 '=y2-ze.
In addition, the present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage has
More account book fund transfer systems based on block chain, more account book fund transfer systems based on block chain can be held by least one processor
Row, so that at least one processor is performed such as the step of more account book transfer account methods based on block chain in above-described embodiment
Suddenly, the specific implementation process such as step S10, S20, S30 of more account book transfer account methods based on block chain are somebody's turn to do as described above, herein
It repeats no more.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes intrinsic for this process, method, article or device institute
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to be realized by hardware, but very much
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, which is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be mobile phone, calculate
Machine, server, air conditioner or network equipment etc.) perform method described in each embodiment of the present invention.
Above by reference to the preferred embodiment of the present invention has been illustrated, not thereby limit to the interest field of the present invention.On
It states that serial number of the embodiment of the present invention is for illustration only, does not represent the quality of embodiment.It is patrolled in addition, though showing in flow charts
Sequence is collected, but in some cases, it can be with the steps shown or described are performed in an order that is different from the one herein.
Those skilled in the art do not depart from the scope of the present invention and essence, can there are many variant scheme realize the present invention,
It can be used for another embodiment for example as the feature of one embodiment and obtain another embodiment.All technologies with the present invention
The all any modification, equivalent and improvement made within design, should all be within the interest field of the present invention.
Claims (10)
1. a kind of more account book transfer account methods based on block chain, applied to electronic device, which is characterized in that described to be based on block chain
More account book transfer account methods include：
If A, in block chain under the first account book the first user account of the first user initiate with second user under the second account book the
The transaction request of two user accounts then receives the first ciphertext that first user encrypts generation in advance；The transaction request is
The request that default exchange trading share is exchanged by default exchange rate, first ciphertext are that default exchange trading share is adopted
The first ciphertext of generation is encrypted with the second preset password formula and corresponding trade share privacy secret key；
B, it is second account by the first default exchange calculation formula and based on the default exchange rate and first ciphertext
Originally the exchange trading share, encryption exchange trading share and corresponding trade share privacy secret key of second account book are calculated,
And generate the encryption exchange trading share of second account book and the second ciphertext of corresponding trade share privacy secret key；
C, based on first ciphertext and the second ciphertext, and first of the first user under first account book is completed by preset rules
User account and the transaction of the second user account of second user under second account book.
2. more account book transfer account methods based on block chain as described in claim 1, which is characterized in that the step C includes：
Receive the first ciphertext after electronic signature；The first ciphertext after the electronic signature is first user by described first
After ciphertext issues the second user, if the second user is according to the default exchange trading share of first ciphertext confirmation and in advance
If exchange rate, then the second user carries out electronic signature generation to first ciphertext；
The first ciphertext after the electronic signature is write on the shared assets account book on each node of block chain；
The remaining sum and described first of the first user account of the first user under first account book is updated according to first ciphertext
The remaining sum of the third account of second user under account book, and second user under second account book is updated according to second ciphertext
The remaining sum of the 4th account of first user under the remaining sum of second user account and second account book.
3. more account book transfer account methods based on block chain as claimed in claim 2, which is characterized in that described according to described first
Ciphertext updates under first account book second user under the remaining sum of the first user account of the first user and first account book
The step of remaining sum of third account, includes：
It is detained in the remaining sum of the first user account of the first user under first account book according to the first default remaining sum calculation formula
Except the default exchange trading share, the first Xinyu of the first user account of the first user under first account book is calculated
Volume, and will be in the first new balance that calculated update to shared assets account book；
Institute is increased in the remaining sum of the third account of second user under first account book according to the second default remaining sum calculation formula
Default exchange trading share is stated, calculates the second new balance of the third account of second user under first account book, and will meter
In the second new balance update to shared assets account book calculated.
4. more account book transfer account methods based on block chain as claimed in claim 2 or claim 3, which is characterized in that described in the basis
Second ciphertext updates under second account book under the remaining sum of the second user account of second user and second account book first and uses
The step of remaining sum of 4th account at family, includes：
Remaining sum calculation formula is preset according to third under second account book to detain in the remaining sum of the second user account of second user
Except the default exchange trading share, the third Xinyu of the second user account of second user under second account book is calculated
Volume, and will be in the third new balance that calculated update to shared assets account book；
Institute is increased in the remaining sum of the 4th account of the first user under second account book according to the 4th default remaining sum calculation formula
Default exchange trading share is stated, calculates the 4th new balance of the 4th account of the first user under second account book, and will meter
On the "four news" (new ideas balance updates to shared assets account book calculated.
5. more account book transfer account methods based on block chain as claimed in claim 4, which is characterized in that the third presets remaining sum
Calculation formula is additionally operable to increase the default exchange trading in the remaining sum of the third account of second user under first account book
Share calculates the second new balance of the third account of second user under first account book；Alternatively, the third presets remaining sum
Calculation formula is additionally operable to deduct the default exchange trading in the remaining sum of the 4th account of the first user under second account book
Share calculates the 4th new balance of the 4th account of the first user under second account book.
6. more account book transfer account methods based on block chain as described in claim 1, which is characterized in that the step B is replaced with
Following steps：
The first ciphertext and the second ciphertext after electronic signature are received, and the first ciphertext after electronic signature and the second ciphertext are write
On shared assets account book on each node of block chain；Wherein, the first ciphertext after the electronic signature and the second ciphertext
Generating process is as follows：
By the first default exchange calculation formula and the default exchange rate and first ciphertext are based on by first user,
The exchange trading share, encryption exchange trading share and corresponding transaction part of second account book are calculated for second account book
Volume privacy secret key, and generate encrypt exchange trading share and corresponding trade share privacy secret key the second of second account book
Ciphertext；First ciphertext and second ciphertext are issued the second user by first user；If the second user
Confirm the default exchange trading share and default exchange rate, then the second user is to first ciphertext and described second close
Text signs electronically.
7. a kind of electronic device, which is characterized in that the electronic device includes memory, processor, is stored on the memory
There are the more account book fund transfer systems based on block chain that can be run on the processor, more account books based on block chain are transferred accounts
System realizes following steps when being performed by the processor：
If in block chain under the first account book the first user the first user account initiate with the second account book under second user second
The transaction request of user account then receives the first ciphertext that first user encrypts generation in advance；The transaction request is will
The request that default exchange trading share is exchanged by default exchange rate, first ciphertext are that default exchange trading share uses
The first ciphertext of generation is encrypted in second preset password formula and corresponding trade share privacy secret key；
It is second account book by the first default exchange calculation formula and based on the default exchange rate and first ciphertext
The exchange trading share, encryption exchange trading share and corresponding trade share privacy secret key of second account book are calculated, and
Generate the encryption exchange trading share of second account book and the second ciphertext of corresponding trade share privacy secret key；
Based on first ciphertext and the second ciphertext, and complete first of the first user under first account book by preset rules and use
The transaction of family account and the second user account of second user under second account book.
8. electronic device as claimed in claim 7, which is characterized in that more account book fund transfer systems based on block chain are by institute
Processor is stated to perform based on first ciphertext and the second ciphertext described in realization, and complete under first account book by preset rules
The first user account of first user under second account book with during the step of the transaction of the second user account of second user, having
Body includes：
Receive the first ciphertext after electronic signature；The first ciphertext after the electronic signature is first user by described first
After ciphertext issues the second user, if the second user is according to the default exchange trading share of first ciphertext confirmation and in advance
If exchange rate, then the second user carries out electronic signature generation to first ciphertext；
The first ciphertext after the electronic signature is write on the shared assets account book on each node of block chain；
The remaining sum and described first of the first user account of the first user under first account book is updated according to first ciphertext
The remaining sum of the third account of second user under account book, and second user under second account book is updated according to second ciphertext
The remaining sum of the 4th account of first user under the remaining sum of second user account and second account book.
9. electronic device as claimed in claim 8, which is characterized in that described that first account is updated according to first ciphertext
The step of the remaining sum of the third account of second user under the remaining sum of the first user account of this lower first user and first account book
Suddenly include：
It is detained in the remaining sum of the first user account of the first user under first account book according to the first default remaining sum calculation formula
Except the default exchange trading share, the first Xinyu of the first user account of the first user under first account book is calculated
Volume, and will be in the first new balance that calculated update to shared assets account book；
Institute is increased in the remaining sum of the third account of second user under first account book according to the second default remaining sum calculation formula
Default exchange trading share is stated, calculates the second new balance of the third account of second user under first account book, and will meter
In the second new balance update to shared assets account book calculated；
It is described that the remaining sum of the second user account of second user and described is updated under second account book according to second ciphertext
Include the step of the remaining sum of the 4th account of the first user under second account book：
Remaining sum calculation formula is preset according to third under second account book to detain in the remaining sum of the second user account of second user
Except the default exchange trading share, the third Xinyu of the second user account of second user under second account book is calculated
Volume, and will be in the third new balance that calculated update to shared assets account book；
Institute is increased in the remaining sum of the 4th account of the first user under second account book according to the 4th default remaining sum calculation formula
Default exchange trading share is stated, calculates the 4th new balance of the 4th account of the first user under second account book, and will meter
On the "four news" (new ideas balance updates to shared assets account book calculated.
10. a kind of computer readable storage medium, which is characterized in that be stored on the computer readable storage medium based on area
More account book fund transfer systems of block chain realize that right such as will when more account book fund transfer systems based on block chain are executed by processor
The step of seeking more account book transfer account methods based on block chain described in any one of 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711382545.3A CN108241979B (en) | 2017-12-20 | 2017-12-20 | Multi-account book transfer method based on block chain, electronic device and readable storage medium |
| PCT/CN2018/075881 WO2019119632A1 (en) | 2017-12-20 | 2018-02-08 | Blockchain-based transfer method for multiple account books, electronic device and readable storage medium |
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| CN201711382545.3A CN108241979B (en) | 2017-12-20 | 2017-12-20 | Multi-account book transfer method based on block chain, electronic device and readable storage medium |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003081A (en) * | 2018-07-13 | 2018-12-14 | 北京创世智链信息技术研究院 | A kind of method of commerce and system based on block chain |
| CN109102286A (en) * | 2018-08-02 | 2018-12-28 | 平安科技（深圳）有限公司 | Across account book method of commerce and device |
| CN109257336A (en) * | 2018-08-24 | 2019-01-22 | 维沃移动通信有限公司 | It is a kind of based on the encrypted message processing method of block chain, terminal device |
| CN110009316A (en) * | 2018-12-14 | 2019-07-12 | 阿里巴巴集团控股有限公司 | Event-handling method and device, electronic equipment based on block chain |
| CN110033363A (en) * | 2018-12-14 | 2019-07-19 | 阿里巴巴集团控股有限公司 | Event-handling method and device, electronic equipment based on block chain |
| CN110505046A (en) * | 2019-07-29 | 2019-11-26 | 深圳壹账通智能科技有限公司 | The cross-platform Zero Knowledge method of calibration of more data providing encryption datas, device and medium |
| WO2019120331A3 (en) * | 2019-04-12 | 2020-02-20 | Alibaba Group Holding Limited | Retrieving values of digital tickets using smart contracts in blockchain networks |
| CN111784341A (en) * | 2019-02-01 | 2020-10-16 | 阿里巴巴集团控股有限公司 | Block chain transaction method and device, electronic equipment and storage medium |
| CN113570373A (en) * | 2021-09-23 | 2021-10-29 | 北京理工大学 | Responsibility pursuing transaction method and system based on block chain |
| US11797985B2 (en) | 2018-10-25 | 2023-10-24 | Tencent Technology (Shenzhen) Company Limited | Value transfer method, apparatus, and system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11943360B2 (en) | 2021-06-22 | 2024-03-26 | International Business Machines Corporation | Generative cryptogram for blockchain data management |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719185A (en) * | 2016-01-22 | 2016-06-29 | 杭州复杂美科技有限公司 | Block chain data comparison and consensus method |
| CN106549749A (en) * | 2016-12-06 | 2017-03-29 | 杭州趣链科技有限公司 | A kind of block chain method for secret protection encrypted based on additive homomorphism |
| CN106960388A (en) * | 2017-03-01 | 2017-07-18 | 中钞信用卡产业发展有限公司北京智能卡技术研究院 | The method and apparatus of the digital asset circulation of transregional piece of chain |
| CN107133796A (en) * | 2017-04-18 | 2017-09-05 | 杭州复杂美科技有限公司 | Across the chain method of summary of block chain |
| CN107358424A (en) * | 2017-06-26 | 2017-11-17 | 中国人民银行数字货币研究所 | A kind of method of commerce and device based on digital cash |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102619230B1 (en) * | 2015-07-02 | 2023-12-28 | 로얄 뱅크 오브 캐나다 | Secure processing of electronic payments |
| CN105681301B (en) * | 2016-01-16 | 2019-03-12 | 杭州复杂美科技有限公司 | Settlement method on block chain |
| WO2018120057A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳前海达闼云端智能科技有限公司 | Currency management method and system based on block chain |
| CN107240001B (en) * | 2017-06-06 | 2020-12-04 | 北京汇通金财信息科技有限公司 | Transaction method and system for digital assets |
-
2017
- 2017-12-20 CN CN201711382545.3A patent/CN108241979B/en active Active
-
2018
- 2018-02-08 WO PCT/CN2018/075881 patent/WO2019119632A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719185A (en) * | 2016-01-22 | 2016-06-29 | 杭州复杂美科技有限公司 | Block chain data comparison and consensus method |
| CN106549749A (en) * | 2016-12-06 | 2017-03-29 | 杭州趣链科技有限公司 | A kind of block chain method for secret protection encrypted based on additive homomorphism |
| CN106960388A (en) * | 2017-03-01 | 2017-07-18 | 中钞信用卡产业发展有限公司北京智能卡技术研究院 | The method and apparatus of the digital asset circulation of transregional piece of chain |
| CN107133796A (en) * | 2017-04-18 | 2017-09-05 | 杭州复杂美科技有限公司 | Across the chain method of summary of block chain |
| CN107358424A (en) * | 2017-06-26 | 2017-11-17 | 中国人民银行数字货币研究所 | A kind of method of commerce and device based on digital cash |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109003081A (en) * | 2018-07-13 | 2018-12-14 | 北京创世智链信息技术研究院 | A kind of method of commerce and system based on block chain |
| CN109003081B (en) * | 2018-07-13 | 2021-11-02 | 北京创世智链信息技术研究院 | Transaction method, system and storage medium based on block chain |
| CN109102286A (en) * | 2018-08-02 | 2018-12-28 | 平安科技（深圳）有限公司 | Across account book method of commerce and device |
| CN109102286B (en) * | 2018-08-02 | 2023-04-07 | 平安科技（深圳）有限公司 | Cross-account book transaction method and device |
| CN109257336B (en) * | 2018-08-24 | 2021-03-16 | 维沃移动通信有限公司 | Block chain-based password information processing method and terminal equipment |
| CN109257336A (en) * | 2018-08-24 | 2019-01-22 | 维沃移动通信有限公司 | It is a kind of based on the encrypted message processing method of block chain, terminal device |
| US11797985B2 (en) | 2018-10-25 | 2023-10-24 | Tencent Technology (Shenzhen) Company Limited | Value transfer method, apparatus, and system |
| CN110009316A (en) * | 2018-12-14 | 2019-07-12 | 阿里巴巴集团控股有限公司 | Event-handling method and device, electronic equipment based on block chain |
| CN110033363A (en) * | 2018-12-14 | 2019-07-19 | 阿里巴巴集团控股有限公司 | Event-handling method and device, electronic equipment based on block chain |
| CN110033363B (en) * | 2018-12-14 | 2024-01-23 | 创新先进技术有限公司 | Event processing method and device based on block chain and electronic equipment |
| CN111784341A (en) * | 2019-02-01 | 2020-10-16 | 阿里巴巴集团控股有限公司 | Block chain transaction method and device, electronic equipment and storage medium |
| EP3610446A4 (en) * | 2019-04-12 | 2020-06-10 | Alibaba Group Holding Limited | Retrieving values of digital tickets using smart contracts in blockchain networks |
| US11087346B2 (en) | 2019-04-12 | 2021-08-10 | Advanced New Technologies Co., Ltd. | Retrieving values of digital tickets using smart contracts in blockchain networks |
| CN111066050B (en) * | 2019-04-12 | 2023-07-28 | 创新先进技术有限公司 | Retrieving value of digital ticket in blockchain networks using smart contracts |
| CN111066050A (en) * | 2019-04-12 | 2020-04-24 | 阿里巴巴集团控股有限公司 | Using intelligent contracts to retrieve value of digital tickets in blockchain networks |
| US11379866B2 (en) | 2019-04-12 | 2022-07-05 | Advanced New Technologies Co., Ltd. | Retrieving values of digital tickets using smart contracts in blockchain networks |
| WO2019120331A3 (en) * | 2019-04-12 | 2020-02-20 | Alibaba Group Holding Limited | Retrieving values of digital tickets using smart contracts in blockchain networks |
| CN110505046A (en) * | 2019-07-29 | 2019-11-26 | 深圳壹账通智能科技有限公司 | The cross-platform Zero Knowledge method of calibration of more data providing encryption datas, device and medium |
| CN110505046B (en) * | 2019-07-29 | 2020-11-24 | 深圳壹账通智能科技有限公司 | Multi-data provider encrypted data cross-platform zero-knowledge verification method, device and medium |
| CN113570373A (en) * | 2021-09-23 | 2021-10-29 | 北京理工大学 | Responsibility pursuing transaction method and system based on block chain |
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| CN108241979B (en) | 2021-03-16 |
| WO2019119632A1 (en) | 2019-06-27 |
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