CN109347838A - A kind of across chain exchange method of Distributed Computing Platform - Google Patents

A kind of across chain exchange method of Distributed Computing Platform Download PDF

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Publication number
CN109347838A
CN109347838A CN201811251599.0A CN201811251599A CN109347838A CN 109347838 A CN109347838 A CN 109347838A CN 201811251599 A CN201811251599 A CN 201811251599A CN 109347838 A CN109347838 A CN 109347838A
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Prior art keywords
recipient
sender
contract account
random number
resource
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Inventor
王堃
李鹏
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Shenzhen Yuanshi Science And Technology Co Ltd
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Shenzhen Yuanshi Science And Technology Co Ltd
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Priority to CN201811251599.0A priority Critical patent/CN109347838A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • 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
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • 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
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Algebra (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Storage Device Security (AREA)

Abstract

The present invention relates to a kind of across the chain exchange methods of Distributed Computing Platform, comprising the following steps: sets at least one sender SXWith a recipient RX；It and is each pair of sender SXWith recipient RXGenerate a contract account；Each sender SXResource, each recipient R are sent to contract accountXGenerate its corresponding secret random number nXIt is sent to contract account；All sender SXAssets be all sent to contract account after, each recipient RXThe secret random number n of oneself is all disclosedx；As all secret random number nxAfter all disclosing, each recipient RXThe sum of secret random number is calculated, and has the backward recipient R of m participant's signatureXTransferring resource；After time-out time reaches, secret random number n still can not be calculatedxThe sum of, then contract account is to sender SXCancel resource.Compared with the prior art, the present invention realizes that multiple participants carry out Resource Exchange between different blocks chain, and guarantees all steps whole success or failure in whole process.

Description

A kind of across chain exchange method of Distributed Computing Platform
Technical field
The present invention relates to block chain technical field, in particular to a kind of across chain exchange method of Distributed Computing Platform.
Background technique
Current block chain technology is in Rapid development stage, and the information isolation high degree between block chain limits The application space of block chain, across the chain interaction between block chain is very urgent demand.Such as in medical insurance field, hospital, Respectively there are the block chain of itself in insurance company, government tripartite；If you need to carry out the calculating of medical insurance big data using distributed computing, just It needs the Data Fusion on each chain.It is quasi- to be based on asymmetric encryption and hashing technique, propose that a kind of block chain is distributed Computing system model and other across chain interaction techniques of block chain, so that can interconnect between different blocks chain.
Existing technical solution: being referred to three kinds of schemes in the report that ether mill founder vitalik writes for R3, respectively It is notary's mechanism, side chain/Repeater-mode, Hash locking mode.But with advances in technology, one has been emerged in recent years A little new across chain solutions, such as distributed private key control technology, notary's mechanism+side chain hybrid technology；But existing skill In art, Resource Exchange is carried out between different blocks chain, all steps whole success or failure during not ensuring that.
Summary of the invention
The object of the present invention is to provide a kind of across the chain exchange method of Distributed Computing Platform, technical problems to be solved It is: carries out Resource Exchange between different blocks chain, all steps whole success or failure during not ensuring that.
The technical scheme to solve the above technical problems is that a kind of across chain exchange method of Distributed Computing Platform, The following steps are included:
At least one sender S is set in a block chainX, and in another block chain set at least one recipient RX；It and is each pair of sender SXWith recipient RXA contract account is generated, the public key of sender is stored in contract account, is connect Public key, time-out time and the configurable parameter of receipts person；
Each sender SXResource, each recipient R are sent to contract accountXGenerate its corresponding secret random number nXHair It send to contract account；All sender SXAssets be all sent to contract account after, each recipient RXThe secret of oneself is all disclosed Random number nx；
As all secret random number nxAfter all disclosing, each recipient RXThe sum of secret random number is calculated, and has m ginseng With the backward recipient R of person's signatureXTransferring resource；After time-out time reaches, each recipient RXStill it can not calculate secret Close random number nxThe sum of, then contract account is to sender SXCancel resource.
Further, further comprising the steps of: all sender SXAssets be all sent to contract account after, all recipients RXSecret random number be all disclosed before, contract account is forbidden to recipient RXTransferring resource.
Further, comprising the following steps: after time-out time reaches, each recipient RXStill secret can not be calculated Random number nxThe sum of, sender SXThe assets in contract account are extracted with signature.
Further, each contract account receives resource, the input that the configurable parameter that resource carries is run as code Value.
Further, wherein | S | > 0, | R | > 0, and | S ∪ R |≤2, only one sender S in each pair of resource transactionXWith one A recipient recipient RX。
Further, each recipient RxAll generate the secret random number n of oneselfx, set Nx=nxG, wherein G is ellipse Basic point on circular curve；Elliptic curve is the arbitrary curve in Elliptic Curve Cryptography；
To NxCarry out its summation:
Contract account are as follows:
It wherein include the public key S of senderi, the public key R of recipientj, time-out time t, m are the configurable of number of signatures Parameter.
The beneficial effects of the present invention are: realizing that multiple participants carry out Resource Exchange between different blocks chain, and guarantee All steps whole success or failure in whole process, guarantees the consistency of whole process；It is provided between different blocks chain Source exchange, and exchange of assets behavior is extended to any behavior.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of across the chain exchange method of Distributed Computing Platform of the present invention about embodiment 1；
Fig. 2 is a kind of schematic diagram of across the chain exchange method of Distributed Computing Platform of the present invention about embodiment 2.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the invention.
Embodiment 1:
As shown in Figure 1, a kind of across chain exchange method of Distributed Computing Platform, comprising the following steps:
At least one sender S is set in a block chainX, and in another block chain set at least one recipient RX；Wherein | S | > 0, | R | > 0, and | S ∪ R |≤2, only one sender S in each pair of resource transactionXReceive with a recipient Person RX；It and is each pair of sender SXWith recipient RXGenerate a contract account, be stored in contract account sender public key, Public key, time-out time and the configurable parameter of recipient；
Each recipient RxAll generate the secret random number n of oneselfx, and open Nx=nxG, wherein G is elliptic curve On basic point；Elliptic curve can be the arbitrary curve in Elliptic Curve Cryptography.
Obtain each Nx, sum
A contract account is generated for every a pair of of sender and recipient
Wherein
The inside includes the public key S of senderi, the public key R of recipientj, time-out time t, m are the configurable of number of signatures Parameter；
Each sender SXResource, each recipient R are sent to contract accountXGenerate its corresponding secret random number nXHair It send to contract account；All sender SXAssets be all sent to contract account after, each recipient RXThe secret of oneself is all disclosed Random number nx；
As all secret random number nxAfter all disclosing, each recipient RXThe sum of secret random number is calculated, and has m ginseng With the backward recipient R of person's signatureXTransferring resource；After time-out time reaches, each recipient RXStill it can not calculate secret Close random number nxThe sum of, then contract account is to sender SXCancel resource；Wherein participant includes recipient RX。
In above-described embodiment, contract accountIndicate recipient RXSignature, all Recipient RXThe sum of secret random numberAnd at least m parts of different recipient RXIt is rightSignature mention Take the resource in account, and sender SXThe assets in account are extracted after time-out time arrival using signature.
Each sender SXAll send resource in corresponding contract account, after all assets are all sent, Each recipient RXThe secret random number n of oneself is all disclosedx；In all secret random number nxBefore being all disclosed, anyone Can not transferring resource, as all secret random number nxAfter all disclosing, each recipient RXIt can calculateAnd by m's Recipient RXAfter signature can transferring resource, if time-out time arrival after can not still calculateThen exchange It can be revoked.
It realizes that multiple participants carry out Resource Exchange between different blocks chain, and guarantees all steps in whole process Whole success or failures guarantee the consistency of whole process；Carry out Resource Exchange between different blocks chain, and by exchange of assets row To be extended to any behavior.
Embodiment 2:
As shown in Fig. 2, a kind of across chain exchange method of Distributed Computing Platform, comprising the following steps:
Distributed transaction T is set, which is divided into multiple step T={ F1,F2..., Fn, each step F can be seen Make the state transition function S'=F (S) executed on block chain, S indicates reset condition, and S' indicates to pass through state transition function F State after conversion；
Each state transition function FiSplit into Fi=Pi,Ci,Ri, wherein PiFor preparation stage, CiFor presentation stage, RiFor rollback phase；The behavior for defining them is as follows:
S "=P (S, L, t),
S'=C (S ", K),
S=R (S "),
Wherein L and K is the status lock and key being mutually matched, and the state locked by corresponding L is needed using corresponding K submit.T indicates time-out time, and rollback phase R can be just entered only after time-out time arrival by state from S " It is reduced to reset condition S；
Across chain distributed transaction is executed, is needed first by each step F of distributed transaction TiIt is deployed in each block On chain, wherein T={ F1,F2..., Fn, step Fi∈T；A secret random number n is created for each step Fi, and open Ni =niG, wherein G is the basic point on elliptic curve；For each step FiCreate a key pair { Ki,ki, and open public key Ki；Obtain each NiAfterwards, it sums:
Execute the preparation stage P of each stepi, obtainWherein each step FiSplit into three phases Fi=Pi,Ci,Ri。
As all preparation stage PiAfter being carried out successfully, each step FiThe secret random number n of oneself is all disclosedi；
As all secret random number niAfter all disclosing, calculateEach step FiAll with the private key K of oneselfi To secret random number niThe sum of sign, obtain eiAnd openly；
After being collected into the signature of setting quantity, the presentation stage C of each step is executedi, it obtains:
Wherein number of signatures m is configurable parameterWithe1, e2..., emIt is the state being mutually matched Lock and key, by correspondingState to lock is needed using correspondinge1, e2..., emIt submits, The state lock function that block chain virtual machine provides can lock S " state for a period of time.After reaching time-out time, can not still it receive The signature for collecting preset quantity, then roll back to original state.
Multiple steps of affairs are dispersed on different block chains and execute in the present embodiment, and guarantee the consistent of entire affairs Property；This is a kind of extension to across chain exchange of assets agreement, and the behavior of exchange of assets is expanded into any behavior.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (6)

1. a kind of across chain exchange method of Distributed Computing Platform, which comprises the following steps:
At least one sender S is set in a block chainX, and at least one recipient R is set in another block chainX；And For each pair of sender SXWith recipient RXA contract account is generated, the public key of sender, recipient are stored in contract account Public key, time-out time and configurable parameter；
Each sender SXResource, each recipient R are sent to contract accountXGenerate its corresponding secret random number nXIt is sent to Contract account；All sender SXAssets be all sent to contract account after, each recipient RXThe secret for all disclosing oneself is random Number nx；
As all secret random number nxAfter all disclosing, each recipient RXThe sum of secret random number is calculated, and has m participant The backward recipient R of signatureXTransferring resource；After time-out time reaches, each recipient RXStill can not calculate it is secret with Machine number nxThe sum of, then contract account is to sender SXCancel resource.
2. across the chain exchange method of a kind of Distributed Computing Platform according to claim 1, which is characterized in that including following step It is rapid: all sender SXAssets be all sent to contract account after, all recipient RXSecret random number be all disclosed before, Contract account is forbidden to recipient RXTransferring resource.
3. across the chain exchange method of a kind of Distributed Computing Platform according to claim 1, which is characterized in that including following step It is rapid: after time-out time reaches, each recipient RXStill secret random number n can not be calculatedxThe sum of, sender SXWith label Name extracts the assets in contract account.
4. across the chain exchange method of a kind of Distributed Computing Platform according to claim 1, which is characterized in that each contract account Receive resource, the input value that the configurable parameter that resource carries is run as code.
5. across the chain exchange method of a kind of Distributed Computing Platform according to claim 1, which is characterized in that wherein sender | Sx | > 0, recipient | Rx| > 0, and | Sx∪Rx|≤2, only one sender S in each pair of resource transactionXReceive with a recipient Person RX。
6. across the chain exchange method of a kind of Distributed Computing Platform according to claim 5, which is characterized in that each recipient RxAll generate the secret random number n of oneselfx, set Nx=nxG, wherein G is the basic point on elliptic curve；Elliptic curve is ellipse Arbitrary curve in circular curve cryptography；
To NxCarry out its summation:
Contract accountAre as follows:
It wherein include the public key S of senderi, the public key R of recipientj, time-out time t, m are the configurable parameter of number of signatures.
CN201811251599.0A 2018-10-25 2018-10-25 A kind of across chain exchange method of Distributed Computing Platform Pending CN109347838A (en)

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