CN109614767A - A kind of logical card exchange method and apparatus of the O2O resource of decentralization - Google Patents
A kind of logical card exchange method and apparatus of the O2O resource of decentralization Download PDFInfo
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Abstract
The invention proposes a kind of logical card exchange method and devices of decentralization O2O resource, the present invention is a kind of disposable power exchange agreement of resource of decentralization, both the uniqueness that can have guaranteed the logical card right of attribution of resource in acentric exchange process can also guarantee the confidentiality of the logical card raw information of resource in this disclosed exchange process.Wherein, the uniqueness of the logical card right of attribution of resource is the basis of decentralization Resource Exchange, and to the secrecy of the logical card raw information of resource is then the premise of the disposable power exchange of resource under line.The logical card exchange method and device of O2O resource for implementing decentralization of the invention, goes under the transaction scene at center, can effectively ensure that the uniqueness of the logical card right of attribution of resource and the confidentiality of the logical card raw information of resource.
Description
Technical field
The present invention relates to block chain fields, lead to card exchange method more specifically to a kind of O2O resource of decentralization
With device.
Background technique
Logical card (Token) trade agreement of traditional block chain, is a kind of logical card right of attribution proof system of decentralization, it
It can prove whom this current logical card belongs to, but cannot maintain secrecy for the raw information of this logical card, all accounting nodes
What the content for both knowing about this logical card is, therefore a true resource can only have a logical card, this logical card represents this
The ownership or the right to use of a resource.For the transaction scene of O2O class, the ownership issue of resource is in the offer of resource
Side, and it is the right to use of resource that the provider of resource, which sells,.The right to use of one resource can be divided into repeatedly, and use every time
Quan Ze needs an individually logical card, and other than true user, other intermediate holders not can know that logical card
Content.Under the transaction scene of centralization, resource transaction platform is the tie point of resource and online trading under line, they be in addition to
Supplier and the logical unique holder of card of resource other than user, they can be controlled by various permissions guarantees that only user can make
With this logical card.But in the case where going the transaction scene at center, resource transaction platform is a public environment, all platform nodes
It is all the participant of transaction, they are the intermediate holders of the logical card of resource, then how to guarantee that these intermediate holders will not
These logical cards of Misuse? i.e. before exchange, how to guarantee the validity of logical card.Especially online lower usage scenario network item
In the case that part is poor, cannot in real time the logical card right of attribution on checkout line when.
Summary of the invention
The technical problem to be solved in the present invention is that for the prior art in the case where going the transaction scene at center, before exchange,
Lead to the validity demonstrate,proved to be difficult to ensure, it, cannot real-time checkout line in the case that especially lower usage scenario network condition is poor online
On the logical card right of attribution technological deficiency, provide the invention proposes a kind of logical card exchange method of the O2O resource of decentralization and
Device can be based on block chain technology, realize the O2O Resource Exchange for going to center.
The decentralization exchange agreement that resource first use is weighed under a kind of line is designed, needs to solve the problems, such as following two:
Problem one: under conditions of decentralization, how to guarantee the uniqueness of the logical card right of attribution of resource.
Problem two: in public interactive environment, how to guarantee the confidentiality of the logical card raw information of resource.
In order to solve the above-mentioned technical problems, the present invention provides a kind of logical card exchange methods of the resource of decentralization, include:
(1) the logical card Token that resource provision side A0 weighs resource first use is published to resource after public key encryption
Switching plane, first start node Token_2 of the logical card exchange chain of establishing resource；
(2) when there is resource purchaser A1 to initiate exchange process to resource provision side A0, supplying party A0 first uses oneself
Private key is once decrypted, and primary encryption information Token_1 is obtained, and the public key for then reusing purchaser A1 believes primary encryption
Breath Token_1 is encrypted, and to obtain the secondary encryption information Token_3 for belonging to A1, and the information is published to Resource Exchange
Platform becomes second intermediate node of the logical card exchange chain of resource；
(3) when next purchaser A2, which wants purchase, leads to card, exchange process is initiated to A1, A1 uses the private of oneself first
Key is decrypted, and obtains primary encryption information Token_1, and the public key for then reusing A2 encrypts Token_1, to obtain
Belong to the secondary encryption information Token_4 of A2, and publish to resource interaction platform, becomes the of the logical card exchange chain of resource
Three intermediate nodes；
(4) when next purchaser A3, which wants purchase, leads to card, exchange process is initiated to A2, A2 uses the private of oneself first
Key is decrypted, and obtains primary encryption information Token_1, and the public key for then reusing A3 encrypts Token_1, to obtain
Belong to the secondary encryption information Token_5 of A3, and publish to resource interaction platform, becomes the of the logical card exchange chain of resource
Four intermediate nodes；
(5) when other purchasers want purchase logical card, according to (3), (4), to the last a purchaser Ak
When wanting using the logical card, logical card decryption process is initiated to A0, and primary encryption information Token_1 is sent A0 after decryption,
A0 is decrypted the original logical card Token of acquisition using the private key of oneself first and is sent to Ak completion decryption process, then simultaneously will
A part of information of Token obtains Token_ (n-1) later using the public key encryption of interaction platform, and publishes to resource friendship
Platform is changed, the penultimate node as the logical card exchange chain of resource；Wherein, k >=2；
(6) after Ak has used down original logical card Token online, last logical card logout flow path is initiated, by Token
Remaining information equally use the public key encryption of interaction platform after obtain Token_n, and be published to Resource Exchange platform, become
The last one node of the logical card exchange chain of resource.
Further, in the logical card exchange method of the O2O resource of decentralization of the invention, also include:
(7) it if Transaction Disputes occur in A0 and Ak, is arbitrated by switching plane, switching plane uses the private key of oneself
Most latter two node is decrypted, original logical card Token is obtained.
Further, in the logical card exchange method of the O2O resource of decentralization of the invention, step is passed through described in (1)
Public key encryption refers to be encrypted by secondary public key encryption agreement.
The present invention is to solve its technical problem, additionally provides a kind of logical card switch of O2O resource of decentralization, packet
Contain:
Computer-readable medium, comprising:
(1), it is sent out after public key encryption for realizing the resource provision side A0 logical card Token for weighing resource first use
For cloth to Resource Exchange platform, establishing resource is logical to demonstrate,prove the code for exchanging first start node Token_2 of chain；
(2), for realizing when there is resource purchaser A1 to initiate exchange process to resource provision side A0, supplying party A0 is first
It is once decrypted using the private key of oneself, obtains primary encryption information Token_1, then reuse the public key pair of purchaser A1
Primary encryption information Token_1 is encrypted, and to obtain the secondary encryption information Token_3 for belonging to A1, and the information is issued
To Resource Exchange platform, become the code of second intermediate node of the logical card exchange chain of resource；
(3), for realizing when next purchaser A2 wants to buy logical card, exchange process is initiated to A1, A1 makes first
It is decrypted with the private key of oneself, obtains primary encryption information Token_1, the public key for then reusing A2 carries out Token_1
Encryption to obtain the secondary encryption information Token_4 for belonging to A2, and publishes to resource interaction platform, becomes the logical card of resource
Exchange the code of the third intermediate node of chain；
(4), for realizing when next purchaser A3 wants to buy logical card, exchange process is initiated to A2, A2 makes first
It is decrypted with the private key of oneself, obtains primary encryption information Token_1, the public key for then reusing A3 carries out Token_1
Encryption to obtain the secondary encryption information Token_5 for belonging to A3, and publishes to resource interaction platform, becomes the logical card of resource
Exchange the code of the 4th intermediate node of chain；
(5), when wanting the logical card of purchase for realizing other purchasers, according to (3), (4), to the last one
When purchaser Ak is want using the logical card, logical card decryption process is initiated to A0, and primary encryption information Token_ after decryption
1 sends A0, and A0 is decrypted the original logical card Token of acquisition using the private key of oneself first and is sent to Ak completion decryption process, so
A part of information of Token is obtained into Token_ (n-1) later using the public key encryption of interaction platform simultaneously afterwards, and is issued
To Resource Exchange platform, the code of the penultimate node as the logical card exchange chain of resource；Wherein, k >=2；
(6), for realizing after Ak has used down original logical card Token online, last logical card logout flow path is initiated,
The public key encryption of interaction platform is equally used to obtain Token_n later the remaining information of Token, and it is flat to be published to Resource Exchange
Platform becomes the code of the last one node of the logical card exchange chain of resource.
Further, in the logical card switch of the O2O resource of decentralization of the invention, also include:
(7) it if there are Transaction Disputes for realizing A0 and Ak, is arbitrated by switching plane, switching plane uses certainly
Oneself private key decrypts most latter two node, obtains the code of original logical card Token.
Further, in the logical card switch of the O2O resource of decentralization of the invention, public key is passed through described in (1)
Encryption refers to be encrypted by secondary public key encryption agreement.
The logical card exchange method and device of resource proposed by the present invention is that a kind of disposable power of resource of decentralization is handed over
Agreement is changed, can both guarantee the uniqueness of the logical card right of attribution of resource in acentric exchange process, it can also be in this disclosure
Exchange process in guarantee the confidentiality of the logical card raw information of resource.Wherein, the uniqueness of the logical card right of attribution of resource is center
Change the basis of Resource Exchange, and is then before the disposable power of resource exchanges under line to the secrecy of the logical card raw information of resource
It mentions.The logical card exchange method and device of resource for implementing decentralization of the invention, goes under the transaction scene at center, can effectively protect
Demonstrate,prove the uniqueness of the logical card right of attribution of resource and the confidentiality of the logical card raw information of resource.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the flow chart of logical card one embodiment of exchange method of O2O resource of decentralization of the invention；
Fig. 2 is the flow chart of secondary cryptographic protocol of the invention；
Fig. 3 is the logical card exchange flow chart of resource of the invention；
Fig. 4 is the state circulation figure of logical card information；
Fig. 5 is PayPal card exchange flow chart.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
With reference to Fig. 1, the logical card exchange method of the O2O resource of the decentralization of the present embodiment is specific as follows shown:
(1) the logical card (Token) that resource first use is weighed is published to by resource provision side A after public key encryption twice
Resource Exchange platform creates first start node (Token_2) of the logical card exchange chain of the resource；
With reference to Fig. 2, the secondary public key encryption agreement that the publication of the logical card of resource uses is encrypted by first time, it is ensured that
In entire exchange process, in addition to the last one is using the exchange side of logical card, other intermediate exchange sides cannot get original logical
Carried out under demonstrate,proving and being online using.And encrypt for the second time, the start node of logical card exchange chain can be generated, the nodal information is exclusive
In the publisher of logical card, the only publisher could be decrypted primary encryption information (Token_1) by the private key of oneself, and with
Next exchange side completes to exchange for the first time, i.e. the currently the only publisher for belonging to logical card of the logical card.
The first time encryption of secondary public key encryption agreement realizes the confidentiality of original logical card information, and encrypts for the second time then
Realize the uniqueness of the logical card right of attribution of resource.
Calculation formula used in secondary cryptographic protocol is as follows:
Token_1=Encrypt (token, public_key_a)
Token_2=Encrypt (token_1, public_key_a)
Wherein, Encrypt indicates Encryption Algorithm, and pub_key_a indicates the public key of A.
(2) when there is resource purchaser B to initiate exchange process to resource provision side A, supplying party A first uses the private key of oneself
It is once decrypted, obtains primary encryption information (Token_1), then reuse the public key of purchaser B to primary encryption information
(Token_1) it is encrypted, to obtain the secondary encryption information (Token_3) for belonging to B, and the information is published to Resource Exchange
Platform becomes second intermediate node of the logical card exchange chain of resource；
After the logical card publication of resource, first resource purchaser B can start lead to demonstrate,proving with resource provision side A to hand over
It changes.Before exchange is completed, lead to card ownership and A, after completion of the exchange, leads to card ownership and B.After B holds logical card, can both it select
It selects using the logical card, also can choose and swapped with next purchaser C.The detailed process of logical card exchange is as shown in Fig. 3.
In multiple exchange process, because logical card raw information encrypt for the first time by the public key of resource provision side A,
So each intermediate exchange side can only get and encrypt later logical card, unless being interacted with A, completes logical card in next step and use stream
Journey.The process can guarantee that validity of the logical card before swapping, used calculation formula are as follows:
Token_1=Decrypt (token_2, private_key_a)
Token_3=Encrypt (token_1, public_key_b)
Wherein, Decrypt indicates that decipherment algorithm, private_key_a indicate the private key of A.
(3) because the encryption of Token_3 outermost layer uses the public key of B, when the desired purchase of next purchaser C should
It when logical card, needs to initiate exchange process to B, same B is decrypted using the private key of oneself first, obtains primary encryption information
(Token_1), the public key for then reusing C encrypts Token_1, to obtain the secondary encryption information (Token_ for belonging to C
4), and resource interaction platform is published to, becomes the third intermediate node of the logical card exchange chain of resource；
(4) and so on, when to the last a purchaser Z is want using the logical card, logical card decryption stream can be initiated to A
Journey, and primary encryption information (Token_1) is sent A after decryption, it is former that acquisition is decrypted using the private key of oneself first in A
Beginning logical card (Token) is sent to Z and completes decryption process, then while by a part of information of Token uses the public affairs of interaction platform
Token_n-1 is obtained after key encryption, and publishes to Resource Exchange platform, reciprocal the as the logical card exchange chain of resource
Two nodes；
(5) after Z has used down original logical card (Token) online, last logical card logout flow path is initiated, by Token
Remaining information equally use the public key encryption of interaction platform after obtain Token_n, and be published to Resource Exchange platform, become
The last one node of the logical card exchange chain of resource；
When being consumed under the last one resource purchaser Z needs to carry out line using logical card, interacted with resource provider A
Original logical card decryption process is initiated, A can be made to trigger first step logout flow path, and after purchaser Z has used down logical card online,
Second step logout flow path can be then initiated, the exchange chain of entire logical card is terminated.Wherein, first step logout flow path can be to avoid other
Purchaser continues to exchange logical card, and two step logout flow paths respectively using a part of original logical card information of platform public key encryption be then for
Prevent platform logical card of Misuse before the last one purchaser Z is using original logical card.It is calculated used in the process for using
Formula is as follows:
Token=Decrypt (token_1, private_key_a)
Token_n-1=Encrypt (Prefix (token), public_key_platform)
Token_n=Encrypt (Suffix (token), public_key_platform)
Wherein, Prefix expression takes prefix algorithm, and Suffix expression takes suffix algorithm.
(6) it if Transaction Disputes occur in A and Z, can be arbitrated by switching plane, switching plane uses the private of oneself
Key decrypts most latter two node, same available original logical card (Token).
If there is dispute after the logical card exchange of resource is completed, platform side can then be restored original by following formula
Logical card information to carry out relevant arbitration.
Token=Merge (Decrypt (token_n-1, private_key_platform), Decrypt (token_n,
private_key_platform))
Wherein, Merge indicates to merge algorithm.
In entirely exchange process, the state circulation for leading to card information is as shown in Figure 4.
With reference to Fig. 5, Resource Exchange is a two-way operation, provides the same of the logical card of resource in resource provision direction purchaser
When, resource purchaser also needs to provide PayPal card to supplying party, and after exchange is completed, payment is can be used in resource provision side
Logical card goes to extract corresponding resource accounting at purchaser.PayPal card exchange there are two types of agreement it can be selected that the first
Using exchange agreement identical with the logical card of resource, one PayPal card can be exchanged in many ways, be avoided more using the agreement
It is operated under secondary line；Second can directly by purchaser by PayPal card encrypted using the public key of supplying party after be sent to
Supplying party, the card of PayPal caused by the process can only be exchanged once, and supplying party cannot hand over again after taking PayPal card
Other exchange sides are given, because logical proof text has been known by the supplying party.
The present invention is based on the logical card exchanges of O2O resource that block chain technology and public-key cryptosystem propose a kind of decentralization
Agreement, the agreement can be realized and exchange on the line of resource first use power under line, be to solve O2O in the scene of decentralization
Resource Exchange is a kind of just Resource Exchange agreement in one of decentralization scene effective solution, can be used
Cross-platform resource in supply chain side distributes scene.In interaction protocol described in the invention, one kind is used to go to center
The user authentication and key management system of change, it is true with system user in rear chain and its society which can solve decentralization
The binding of identity, the incidence relation are also the basis for realizing O2O Resource Exchange.
The present invention also provides a kind of logical card switch of the O2O resource of decentralization, have computer can in the device
Medium is read, the code for realizing the above method is stored in the computer-readable medium.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (6)
1. a kind of logical card exchange method of the O2O resource of decentralization, characterized by comprising:
(1) the logical card Token that resource provision side A0 weighs resource first use is published to Resource Exchange after public key encryption
Platform, first start node Token_2 of the logical card exchange chain of establishing resource；
(2) when there is resource purchaser A1 to initiate exchange process to resource provision side A0, supplying party A0 first uses the private key of oneself
It is once decrypted, obtains primary encryption information Token_1, then reuse the public key of purchaser A1 to primary encryption information
Token_1 is encrypted, and to obtain the secondary encryption information Token_3 for belonging to A1, and the information is published to Resource Exchange and is put down
Platform becomes second intermediate node of the logical card exchange chain of resource；
(3) when next purchaser A2 wants the logical card of purchase, initiate exchange process to A1, A1 use first the private key of oneself into
Row decryption, obtains primary encryption information Token_1, the public key for then reusing A2 encrypts Token_1, to be belonged to
The secondary encryption information Token_4 of A2, and resource interaction platform is published to, become the third of the logical card exchange chain of resource
Intermediate node；
(4) when next purchaser A3 wants the logical card of purchase, initiate exchange process to A2, A2 use first the private key of oneself into
Row decryption, obtains primary encryption information Token_1, the public key for then reusing A3 encrypts Token_1, to be belonged to
The secondary encryption information Token_5 of A3, and resource interaction platform is published to, become the 4th of the logical card exchange chain of resource
Intermediate node；
(5) when other purchasers want purchase logical card, according to (3), (4), to the last a purchaser Ak wants to make
When with the logical card, logical card decryption process is initiated to A0, and primary encryption information Token_1 is sent A0 after decryption, A0 is first
The original logical card Token of acquisition first is decrypted using the private key of oneself and is sent to Ak completion decryption process, then simultaneously by Token
A part of information using obtaining Token_ (n-1) after the public key encryption of interaction platform, and it is flat to publish to Resource Exchange
Platform, the penultimate node as the logical card exchange chain of resource；Wherein, k >=2；
(6) after Ak has used down original logical card Token online, last logical card logout flow path is initiated, by the residue of Token
Information equally uses the public key encryption of interaction platform to obtain Token_n later, and is published to Resource Exchange platform, and it is logical to become resource
The last one node of card exchange chain.
2. the logical card exchange method of the O2O resource of decentralization according to claim 1, which is characterized in that also include:
(7) it if Transaction Disputes occur in A0 and Ak, is arbitrated by switching plane, switching plane is decrypted using the private key of oneself
Most latter two node obtains original logical card Token.
3. the logical card exchange method of the O2O resource of decentralization according to claim 1, which is characterized in that institute in step (1)
It states and refers to by public key encryption by the encryption of secondary public key encryption agreement.
4. a kind of logical card switch of the O2O resource of decentralization, characterized by comprising:
Computer-readable medium, comprising:
(1), it is published to after public key encryption for realizing the resource provision side A0 logical card Token for weighing resource first use
Resource Exchange platform, the code of first start node Token_2 of the logical card exchange chain of establishing resource；
(2), for realizing when there is resource purchaser A1 to initiate exchange process to resource provision side A0, supplying party A0 is first used certainly
Oneself private key is once decrypted, and primary encryption information Token_1 is obtained, and the public key for then reusing purchaser A1 adds to primary
Confidential information Token_1 is encrypted, and to obtain the secondary encryption information Token_3 for belonging to A1, and the information is published to resource
Switching plane becomes the code of second intermediate node of the logical card exchange chain of resource；
(3), for realizing when next purchaser A2 wants to buy logical card, exchange process is initiated to A1, A1 is used certainly first
Oneself private key is decrypted, and obtains primary encryption information Token_1, and the public key for then reusing A2 encrypts Token_1,
To obtain the secondary encryption information Token_4 for belonging to A2, and resource interaction platform is published to, becomes the logical card exchanging chain of resource
The code of the third intermediate node of item；
(4), for realizing when next purchaser A3 wants to buy logical card, exchange process is initiated to A2, A2 is used certainly first
Oneself private key is decrypted, and obtains primary encryption information Token_1, and the public key for then reusing A3 encrypts Token_1,
To obtain the secondary encryption information Token_5 for belonging to A3, and resource interaction platform is published to, becomes the logical card exchanging chain of resource
Article the 4th intermediate node code；
(5), when wanting the logical card of purchase for realizing other purchasers, according to (3), (4), a to the last purchase
When square Ak is want using the logical card, logical card decryption process is initiated to A0, and primary encryption information Token_1 is sent after decryption
A0, A0 are decrypted the original logical card Token of acquisition using the private key of oneself first and are sent to Ak completion decryption process, then simultaneously
A part of information of Token is obtained into Token_ (n-1) later using the public key encryption of interaction platform, and publishes to resource
Switching plane, the code of the penultimate node as the logical card exchange chain of resource；Wherein, k >=2；
(6), for realizing after Ak has used down original logical card Token online, last logical card logout flow path is initiated, it will
The remaining information of Token equally uses the public key encryption of interaction platform to obtain Token_n later, and it is flat to be published to Resource Exchange
Platform becomes the code of the last one node of the logical card exchange chain of resource.
5. the logical card switch of the O2O resource of decentralization according to claim 4, which is characterized in that also include:
(7) it if there are Transaction Disputes for realizing A0 and Ak, is arbitrated by switching plane, switching plane uses oneself
Private key decrypts most latter two node, obtains the code of original logical card Token.
6. the logical card switch of the O2O resource of decentralization according to claim 4, which is characterized in that (1) passed through described in
Public key encryption is crossed to refer to by the encryption of secondary public key encryption agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378181.6A CN109614767B (en) | 2018-11-19 | 2018-11-19 | Decentralized O2O resource evidence exchange method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811378181.6A CN109614767B (en) | 2018-11-19 | 2018-11-19 | Decentralized O2O resource evidence exchange method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109614767A true CN109614767A (en) | 2019-04-12 |
| CN109614767B CN109614767B (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811378181.6A Active CN109614767B (en) | 2018-11-19 | 2018-11-19 | Decentralized O2O resource evidence exchange method and device |
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