CN110502905A - A kind of distributed account book method of commerce and system of secret protection - Google Patents
A kind of distributed account book method of commerce and system of secret protection Download PDFInfo
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- CN110502905A CN110502905A CN201910621136.7A CN201910621136A CN110502905A CN 110502905 A CN110502905 A CN 110502905A CN 201910621136 A CN201910621136 A CN 201910621136A CN 110502905 A CN110502905 A CN 110502905A
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- account book
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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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
- G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
Abstract
The invention discloses the distributed account book method of commerce and system of a kind of secret protection, which comprises generates transaction key, which only discloses participating user, agent node and supervisory node；Original transaction is created, and transaction is encrypted；Participant of trading selects agent node；Transaction participates in direction agent node and sends encryption transaction；Agent node is based on encryption transaction creation open transaction；Open transaction is issued to the whole network and participated in common recognition verifying, block chain distribution account book is included in after and is permanently stored.The present invention has the advantages that (1) privacy is high: user independently selects public data and private data, and private data will hold in close confidence underground.(2) performance is high: overall distribution formula accounting performance is unaffected.(3) flexibility ratio is high: agent node is adjusted flexibly and open transaction generates interval, avoids the problem that causing transaction can not operate normally because node occupies excess resource.
Description
Technical field
The invention belongs to block chain technical fields, and in particular to a kind of distributed account book method of commerce of secret protection and be
System.
Background technique
Currently, the distributed account book rapid development based on block chain technology, transaction privacy concern also obtain increasingly
More concerns.In traditional distributed account book, due to factors such as common recognition mechanism, verifying processes, determine that Transaction Information must be public
It opens, is kept accounts jointly by the whole network, to guarantee the fairness of transaction and can not distort.
, can if Transaction Information discloses however, although anonymous deal may be implemented in most of distribution account book technology
To trace back to transaction rule by transactions history and transaction analysis, transaction content is revealed.This is that most of user is not intended to see
's.Therefore, transaction secret protection becomes the major issue that distributed account book faces.
There are some related patents and technology to propose at present, has compared typically CN106549749A one kind and be based on addition
The block chain method for secret protection of homomorphic cryptography.What this method stored in account book is transaction ciphertext, and cleartext information is only being traded
Node is local and supervisory node storage, verifying node only carry out the verifying of the transactions balances based on homomorphic cryptography.Since remaining sum is verified
It needs to inquire by supervisory node when not can fully ensure that transaction security, therefore there is Transaction Inquiries demand.The patent exists
The problem of be that the query demand of the whole network node is all met by supervisory node, a degree of centralization is caused, from process performance
And safety perspective, there is certain conflict with block Chain System.Other patents, such as peace of the CN106845960B based on block chain
Full method of commerce and the effective patent of system etc. carry out secret protection by key permission, but there is also excessively rely on supervision section
The problem of point.
Summary of the invention
The purpose of the present invention is what is be achieved through the following technical solutions.
The present invention proposes the distributed account book method of commerce and system of a kind of secret protection, innovatively will transaction privacy letter
Breath is hidden, and sets up agent node, and agent node can be selected and be replaced by user's independent and flexible, and agent node hands over privacy of user
Open transaction easily is converted to, is participated in distributed account book common recognition.The present invention can guarantee the original treatability of distributed account book
Under the premise of energy and common recognition system, the secret protection of transaction data is realized, and transaction disclosure and privacy of trading may be implemented
It coexists.
Specifically, according to the first aspect of the invention, a kind of distributed account book method of commerce of secret protection is provided,
For agent node, comprising: receive the encryption transaction that transaction participant is sent；Based on the encryption transaction creation open transaction；
The open transaction is issued to the whole network and participated in common recognition verifying, the storage of block chain distribution account book is included in after.
Preferably, before receiving the encryption transaction that transaction participant is sent, further comprise: receiving transaction participant hair
The agent request information sent sends response message to transaction participant according to the agent request information, when the response message
When receiving for confirmation, the agent node that the agent node is traded as this is determined.
Preferably, described based on encryption transaction creation open transaction, comprising: the decryption encryption transaction obtains original friendship
Easy data；The legitimacy for judging the original transaction enters in next step if legal, and otherwise refusal is this time traded；At merger
The original transaction is managed, is the final Transaction Information of transaction participant and the agent node by the original transaction merger；In
Original transaction data is enclosed in the final Transaction Information, forms open transaction data.
Preferably, the legitimacy of the original transaction is judged according to initiator's remaining sum, and/or transaction participant credit worthiness.
According to the second aspect of the invention, a kind of distributed account book method of commerce of secret protection is provided, for handing over
Easy participant, comprising: send key request to create to key creation node；Receive the key information that key creation node is sent；
It creates original transaction and the original transaction is encrypted using public key；Agent node is selected, and sends and adds to agent node
Close transaction, the encryption transaction is by the original encrypted rear acquisition of transaction.
Preferably, the distributed account book key creation node is supervisory node.
Preferably, the selection agent node, comprising: it votes the agent node in agent node candidate list,
The agent node that the soprano that wins the vote is traded as this；Agent request information is sent to agent node；Receiving Agent node
Response message, if the response message is that confirmation receives, it is determined that the agent node that the agent node is traded as this, such as
Response message described in fruit is that refusal receives, then reselects agent node according to the above process.
Preferably, the method for the ballot be following manner at least one: weight votes, according to assets total amount ballot,
It is voted according to credit worthiness.
Preferably, the agent request information includes at least one of following information: transaction party information, bonus are divided into
Information.
According to the third aspect of the present invention, a kind of distributed account book transaction system of secret protection is provided, comprising: generation
Node is managed, the encryption transaction sent for receiving transaction participant is based on the encryption transaction creation open transaction, by the public affairs
It opens transaction and common recognition verifying is issued and participated in the whole network, the storage of block chain distribution account book is included in after.
Preferably, the system further comprises: supervisory node, the key information sent for receiving key creation node
With transaction party information, the complaint request of the reception transaction participant, based on transaction plaintext and the key information, transaction
Party information carries out transaction supervision, responds the complaint request.
According to the fourth aspect of the present invention, a kind of distributed account book traction equipment of secret protection is provided, comprising: one
A or multiple processors, the storage device for storing one or more programs；When one or more of programs by one or
When multiple processors execute, one or more of processors realize method as described above.
According to the fifth aspect of the present invention, a kind of computer readable storage medium is provided, computer is stored thereon with
Program, the computer program realize method as described above when being executed by processor.
The present invention has the advantages that (1) privacy is high: user independently selects public data and private data, private data
It will hold in close confidence underground.(2) performance is high: overall distribution formula accounting performance is unaffected.(3) flexibility ratio is high: generation is adjusted flexibly
It manages node and open transaction generates interval, avoid the problem that causing transaction can not operate normally because node occupies excess resource.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Attached drawing 1 shows the distributed account book method of commerce and system of a kind of secret protection of embodiment according to the present invention
Integrated stand composition.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
Illustrate key step process of the invention below by an example:
As shown in Figure 1, user A, user B, user C are the ordinary users of distributed account book, want to carry out one between three
A little privacy transaction, these transaction only disclose three participating users and part of nodes.Specific transaction such as (A- > C,
10), (A- > B, 20), (B- > C, 10).(A- > C, 10) means that A sends 10 yuans to C, and (A- > B, 20) means A to B
20 yuans are sent, (B- > C, 10) means that B sends 10 yuans to C.Above- mentioned information will be carried out at encryption using key
Reason is E (A- > C, 10), E (A- > B, 20), E (B- > C, 10).Information is only to three participating users, agent node P and prison after encryption
Pipe node discloses.User A, user B select agent node P, agent node P to choose from agent node alternate list first
It arrives.After the completion of selection, encryption transaction is sent to agent node P.It after agent node P receives transaction, is decrypted, and creates simultaneously
Build open transaction.Open transaction quantity is identical as receiving node quantity.For example above-mentioned transaction will change are as follows: (A- > P, 30), (P- >
C, 20), (P- > B, 10) [E (A- > C, 10), E (A- > B, 20), E (B- > C, 10)].Wherein [] is partially encrypted content, is occurred
In distributed account book, but in addition to interdependent node, other nodes can not be read, to realize transaction secret protection.Externally
Disclosed information is (A- > P, 30), (P- > C, 20), (P- > B, 10).The part public information has already passed through the processing such as merger, nothing
Method traces original trading activity.And when dispute occurs, original encryption information can be supplied to supervisory node etc., for carrying out
Dispute processing.
In the present invention, all kinds of role definitions are as follows:
Ordinary node
The node for participating in distributed account book storage or verifying, does not have Trade Agents function.
Agent node
It can receive user encryption transaction request, and be converted to the node of open transaction.Applying to become a new generation
When managing node, needs to pay cash pledge, can be rewarded after the completion of agent functionality.
Supervisory node
Belong to independent third party supervisor, they synchronize Block status, have the permission of decryption encryption information, work as transaction
When dispute etc. occurs, it is responsible for processing.Meanwhile finding and handling malicious user behavior.
Transaction participant
The initiator and/or recipient of transaction.
The method of commerce of secret protection proposed by the invention mainly includes the following steps:
Step S10, generates transaction key, which only discloses participating user, agent node and supervisory node；
Step S20 creates original transaction, and transaction is encrypted；
Step S30, transaction participant select agent node；
Step S40, transaction participate in direction agent node and send encryption transaction；
Step S50, agent node are based on encryption transaction creation open transaction；
Open transaction is issued to the whole network and is participated in common recognition verifying, block chain distribution account book is included in after by step S60
It permanently stores.
Step S10 is described below in detail, generates the process of transaction key, includes the following steps:
Step S101, transaction participant (user A, user B, user C) represent (such as user A) to distributed account book key
It creates node (can be supervisory node, be also possible to specialized node, do not limit) and sends key request to create.
Step S102, key creates node and carries out subscriber authentication to transaction participant, if there is malicious user, black
Refusal is generated key by name single user etc..
Step S103, key create node and public private key information are sent to each transaction participant (user A, user B, user
C)。
Step S104, key creates node and public private key information is sent to supervisory node, and provides transaction party information.
Step S20 is described below in detail, creates original transaction, and to the process that transaction is encrypted, including is as follows
Step:
Step S201 trades in participant (user A, user B, user C), sends assets user and create original transaction, than
Such as (A- > C, 10), (A- > B, 20), (B- > C, 10).A- > C means that A sends 10 yuans to C.
Step S202, transaction participant select type of transaction, and transaction can be encryption transaction or open transaction.
Step S203 is handled according to different type of transaction.
Step S2031, if it is open transaction, initiator is without selecting agent node, directly progress the whole network common recognition verifying
Process, by the way that distributed storage will be carried out after verifying；
Step S2032 is traded if it is encryption, is encrypted using public key, by transaction (A- > C, 10), (A- > B, 20),
(B- > C, 10) is encrypted as E (A- > C, 10), E (A- > B, 20), E (B- > C, 10).Encryption Algorithm includes but is not limited to all kinds of non-right
Claim Encryption Algorithm, Encryption Algorithm, homomorphic encryption algorithm etc..
Step S30 is described below in detail, the process of transaction participant selection agent node includes the following steps:
Step S301, arbitrary node can apply to become agent node, but need to pay and pledge gold, if there is malice row
For, not as behavior, will catch a packet, correspondingly, after completing proxy task, available reward.
Step S302, transaction participant vote to the agent node in agent node candidate list, and win the vote soprano
As this transaction agent node, voting method include but is not limited to weight votes, according to assets total amount ballot, according to prestige
The modes such as degree ballot.
Step S303, after the completion of agent node selection, transaction participant (transaction participant user A, user B, in user C
Subset) to agent node send agent request information, solicited message includes but is not limited to transaction party information, bonus and is divided into
Information etc..
Step S304 after agent node receives agent request information, the information such as is divided into according to the bonus of offer, it is determined whether
Receive proxy requests, if it is confirmed that receiving, then becomes this Trade Agents node.Otherwise, refuse the request and transaction is notified to join
With side, participant of trading will carry out agent node selection again.
Step S40 is described below in detail, transaction participates in direction agent node and sends the process of encryption transaction, including walks as follows
It is rapid:
Step S401, after the completion of agent node selection, transaction participant (transaction participant user A, user B, in user C
Subset) key information of this trading processing is sent to agent node, in order to which agent node is decrypted；
Step S402, transaction participant (transaction participant user A, user B, the subset in user C) are sent out to agent node
Deliver easy to handle request, i.e. E (A- > C, 10), E (A- > B, 20), E (B- > C, 10) information；
Step S403, agent node handle periodically or in real time for the transaction received, handle time and period
Without limitation, but generally recommend cyclical process, to enhance privacy secrecy effect, because transaction participant is more, transaction is more negative
Duty is more convenient for transaction and hides.
Step S50, process of the agent node based on encryption transaction creation open transaction is described below in detail, including walks as follows
It is rapid:
Step S501 after agent node receives transaction, is decrypted first, obtains original friendship after decrypting to encryption transaction
Easy data.
Step S502, agent node judge the legitimacy of original transaction, including the judgement of initiator's remaining sum, transaction participant letter
Reputation degree judgement etc. enters in next step if legal, and otherwise refusal is this time traded.
Step S503, agent node carry out original transaction merger processing, by various transaction merger for agent node most
Whole stateful transaction, such as by (A- > C, 10), (A- > B, 20), (B- > C, 10).Variation are as follows: (A- > P, 30), (P- > C, 20), (P-
>B,10)。
Step S504, agent node enclose original transaction data [E (A- > C, 10), E (A- > B, 20), E in Transaction Information
(B- > C, 10)], it is formed final open transaction data (A- > P, 30), (P- > C, 20), (P- > B, 10) [E (A- > C, 10), E
(A- > B, 20), E (B- > C, 10)].
Step S60 is described below in detail, open transaction the whole network is issued and participated in common recognition verifying, block chain point is included in after
The process that cloth account book permanently stores, includes the following steps:
Open transaction is carried out the whole network publication by step S601, agent node, due in public data there are clear data, because
This ordinary authentication node can be verified.
Step S602 after Transaction Information is permanently stored, can not be changed, once there are Transaction Disputes, it can be to prison
Pipe node lodges a complaint, and supervisory node is based on transaction plaintext, cipher-text information carries out trading processing.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (15)
1. a kind of distributed account book method of commerce of secret protection is used for agent node characterized by comprising
Receive the encryption transaction that transaction participant is sent；
Based on the encryption transaction creation open transaction；
The open transaction is issued to the whole network and participated in common recognition verifying, the storage of block chain distribution account book is included in after.
2. a kind of distributed account book method of commerce of secret protection according to claim 1, which is characterized in that
Before receiving the encryption transaction that transaction participant is sent, further comprise:
The agent request information that transaction participant is sent is received, response is sent to transaction participant according to the agent request information
Information determines the agent node that the agent node is traded as this when the response message is that confirmation receives.
3. a kind of distributed account book method of commerce of secret protection according to claim 1 or 2, which is characterized in that
It is described to be based on encryption transaction creation open transaction, comprising:
The encryption transaction is decrypted, original transaction data is obtained；
The legitimacy for judging the original transaction enters in next step if legal, and otherwise refusal is this time traded；
Merger handles the original transaction, is the final friendship of transaction participant and the agent node by the original transaction merger
Easy information；
Original transaction data is enclosed in the final Transaction Information, forms open transaction data.
4. a kind of distributed account book method of commerce of secret protection according to claim 3, which is characterized in that
The legitimacy of the original transaction is judged according to initiator's remaining sum, and/or transaction participant credit worthiness.
5. the distributed account book method of commerce of a kind of secret protection, for participant of trading characterized by comprising
Key request to create is sent to key creation node；
Receive the key information that key creation node is sent；
It creates original transaction and the original transaction is encrypted using public key；
Agent node is selected, and sends the key information and trading processing request to agent node.
6. a kind of distributed account book method of commerce of secret protection according to claim 5, which is characterized in that
The distribution account book key creation node is supervisory node.
7. a kind of distributed account book method of commerce of secret protection according to claim 5, which is characterized in that
The selection agent node, comprising:
It votes the agent node in agent node candidate list, the soprano that will win the vote saves as this agency to trade
Point；
The agent node traded to this sends agent request information；
The response message of Receiving Agent node, if the response message is that confirmation receives, it is determined that the agent node is as this
The agent node of secondary transaction reselects agent node if the response message is that refusal receives according to the above process.
8. a kind of distributed account book method of commerce of secret protection according to claim 7, which is characterized in that
The method of the ballot is at least one of following manner: weight votes are thrown according to the ballot of assets total amount, according to credit worthiness
Ticket.
9. a kind of distributed account book method of commerce of secret protection according to claim 7, which is characterized in that
The agent request information includes at least one of following information: transaction party information, bonus are divided into information.
10. a kind of distributed account book transaction system of secret protection characterized by comprising
Agent node, the encryption transaction sent for receiving transaction participant, is based on the encryption transaction creation open transaction, will
Common recognition verifying is issued to the whole network and is participated in the open transaction, and the storage of block chain distribution account book is included in after.
11. a kind of distributed account book transaction system of secret protection according to claim 10, which is characterized in that further
Include:
Supervisory node receives the transaction for receiving the key information and transaction party information that key creation node is sent
The complaint of participant is requested, and is carried out transaction supervision with the key information, transaction party information in plain text based on transaction, is responded institute
State complaint request.
12. a kind of distributed account book transaction system of secret protection according to claim 10, which is characterized in that
The agent node also receives the agent request information that transaction participant is sent, according to the agent request information to transaction
Participant sends response message, when the response message is that confirmation receives, determines the generation that the agent node is traded as this
Manage node.
13. a kind of distributed account book transaction system of secret protection according to claim 10, which is characterized in that
The agent node judges the legitimacy of the original transaction according to initiator's remaining sum, and/or transaction participant credit worthiness.
14. a kind of distributed account book traction equipment of secret protection characterized by comprising
One or more processors, the storage device for storing one or more programs；
When one or more of programs are executed by one or more of processors, one or more of processors are realized
Method as described in claim 1-9 is any.
15. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The method as described in claim 1-9 is any is realized when being executed by processor.
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| CN113326516A (en) * | 2021-04-22 | 2021-08-31 | 远光软件股份有限公司 | Block chain consensus method, block chain system and computer equipment |
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| CN111277415A (en) * | 2020-01-20 | 2020-06-12 | 布比（北京）网络技术有限公司 | Privacy protection method and device based on block chain intelligent contract |
| WO2022001960A1 (en) * | 2020-06-28 | 2022-01-06 | 中兴通讯股份有限公司 | Proxy method, device, and computer-readable storage medium |
| EP4174702A4 (en) * | 2020-06-28 | 2023-11-22 | ZTE Corporation | Proxy method, device, and computer-readable storage medium |
| CN113326516A (en) * | 2021-04-22 | 2021-08-31 | 远光软件股份有限公司 | Block chain consensus method, block chain system and computer equipment |
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