CN114022285A - Cross-enterprise cloud computing resource metering method and system based on alliance block chain - Google Patents
Cross-enterprise cloud computing resource metering method and system based on alliance block chain Download PDFInfo
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Abstract
The invention relates to a cross-enterprise cloud computing resource metering method and system based on a block chain of a federation, wherein the method comprises the following steps: a resource user accesses a cloud federation platform to apply for cloud computing resource usage; the resource provider verifies the identity certificate information of the resource provider through the public key of the user and then approves the resource provider for use, and the resource user obtains the resource which is approved for use and releases the resource after use; the resource provider generates a settlement bill, the provider and the user confirm and add digital signatures of the provider and the user, the resource provider and the resource user update the state of the database respectively, and the resource provider serves as a client node to submit the bill transaction to the alliance chain system; the system accounting node constructs a block and sends a sequencing node; and sequencing the transactions in the system by the sequencing node, and then sequentially chaining the transactions to complete the cloud computing resource metering. The method solves the problem of measurement mutual trust between the cross-organization cloud services, and simultaneously increases the robustness of the cloud federation platform.
Description
Technical Field
The invention belongs to the technical field of information, and particularly relates to a cross-enterprise cloud computing resource metering method and system based on a block chain of an alliance.
Background
With the advent of the big data era, the larger the data volume required to be processed in daily work and life of people, the requirement on the data processing capability of a computer is continuously improved, the existing linearly-increased centralized cloud computing capability cannot be matched with explosively-increased equipment and data scale, and the possibility that a single cloud platform resource is insufficient to support the processing, storage and effective management of mass data may occur. Manufacturers of large cloud service providers such as the arry cloud, the Tencent cloud, the amazon cloud and the like can realize interconnection and intercommunication by establishing data centers in multiple places, and the data centers still belong to the same organization or organization essentially. And because the large-scale cloud manufacturer has wide service related range and large service quantity, the cluster maintenance cost can be higher. However, if a small cloud platform or a cloud manufacturer simply purchases a large number of servers, a certain economic benefit can be brought at a resource use peak, but a large amount of resources may be left unused after the resource use peak. The unused resources not only do not bring economic benefits, but also consume maintenance costs, such as power supply costs, cooling costs, floor space rental costs, and the like. Therefore, renting resources to other cloud providers becomes one of the alternatives, the cloud federal thought comes from this, and resource collaboration and sharing of cloud services across organizations are gradually becoming trends. The cloud federation can link the private cloud and the public cloud into a federation system through cloud federation authentication and user mapping based on a unified architecture, so that unified scheduling and management are realized, resource facilities in an 'isolation' state can be mutually accessed and shared, virtual resources are provided for users through a unified interface, and resource barriers are broken. The essential point of the method is that cloud resources of different organizations are combined to solve the problem of insufficient resources of a single cloud center, so that the resource requirements of cloud users are met, and the resource utilization rate of cloud providers is improved. The main advantages of the cloud federation are high security, high expandability and low cost.
In the cloud federal computing reference framework (CFRA) proposed by the National Institute of Standards and Technology (NIST), cloud federal metering is mentioned in the management of cloud resources, and the metering defined by the framework adopts a method of metering by a cloud federal center to provide the resource capacity of others rented or rented by the own party for the participants of the cloud federal, and such management services are still provided by the cloud federal center, which is a manager of the cloud federal. This is also the metering method adopted by a few existing cross-organization cloud service federal platforms. The method has the advantages that the data can be efficiently and quickly measured, but the method has the defects that the consistency of the data in the cloud federal center and each scientific research institution is difficult to ensure, and the operation cost and the operation efficiency of the cloud federal center are high; if the cloud federal center is attacked maliciously, metering private data can be leaked, and the metering system is crashed.
The blockchain technology is the concept proposed by the inventor for the first time in 2008, and has a history of more than ten years to date. The block chain is a distributed account book which links data blocks in a chain mode according to a time sequence and ensures that the data blocks cannot be tampered and forged by an encryption algorithm, and has the characteristics of decentralization, non-tampering, traceability, collective maintenance, openness and transparency and the like. According to the openness of the access right in the chain, the blockchain can be divided into a public chain, a private chain and a federation chain: each node in the public chain can freely read and write information in the chain, the writing authority of each node in the private chain is controlled internally, the authority range of each node in the alliance chain is between the public chain and the private chain, a plurality of organizations in a certain organization participate in block chains for management and use together, each organization runs one or more nodes, and the accounting node is selected from the organizations in and the addition and deletion of the blocks are determined through an alliance chain consensus mechanism. In recent years, the alliance blockchain has been developed with advantages of member controllability, system security and the like. Alliance blockchains are currently widely used in e-commerce, financial supervision, smart cities, innovative medicine and other fields. Such as a decentralized double-chain storage model for railway monitoring data, a storage and sharing scheme for medical data, a traceability system for products, an asset transaction platform for power data, a storage and sharing for smart grid data, and the like.
However, in the aspect of metering, particularly, metering of cross-organization cloud services is still mostly performed in a central type in the current technology, a central node of cloud federation is selected to uniformly collect bills for resource usage metering of each service provider, and a centralized database is used for uniformly storing and managing metering data. The inevitable consequence of such central metering is that the operation burden of the central node is too large, and the problem of whether the metering data can be ensured to be safe or not can be caused by the centralized storage of the data. Therefore, the innovation of the invention is that the alliance chain technology is applied to cross-organization cloud service metering, a reliable and mutually trusted metering mode is provided, and the problem of centralized metering exposure is solved.
Disclosure of Invention
The invention aims to provide a reliable and mutually trusted bill data metering mode for the cross-organization cloud host service, and solves the problems of unreliable metering data, high metering cost of a cloud federal center and the like caused by centralized metering.
In order to achieve the above object, in one aspect, the present invention provides a federated blockchain-based cross-enterprise cloud computing resource metering method, which includes the following steps:
a resource user accesses a cloud federation platform to apply for cloud computing resource usage; the resource provider verifies the identity certificate information of the resource provider through the public key of the user and then approves the resource provider for use, and the resource user obtains the resource which is approved for use and releases the resource after use;
the resource provider generates a settlement bill, and both the provider and the user confirm and add digital signatures of both the provider and the user, wherein the digital signatures are formed by private keys of both the resource provider and the resource user;
the resource provider and the resource user update the database state respectively, and the resource provider is used as a client node to submit the bill transaction to the alliance chain system;
the system accounting node constructs a block and sends a sequencing node; and sequencing the transactions in the system by the sequencing node, and then sequentially chaining the transactions to complete the cloud computing resource metering.
In another aspect, the present invention provides a federated blockchain-based cross-enterprise cloud computing resource metering system, including: the system comprises a first client of a resource user and a second client of a resource provider, wherein the first client and the second client are respectively provided with a database for storing settlement bill information:
the first client accesses the cloud federation platform to apply for the use of cloud computing resources; the resource provider verifies the identity certificate information of the resource provider through the public key of the second client user and then approves the resource provider for use, and the resource provider obtains the resource which is approved for use and releases the resource after use;
the second client generates a settlement bill, and both the provider and the user confirm and add digital signatures of both the provider and the user, wherein the digital signatures are formed by private keys of both the resource provider and the resource user;
the first client and the second client update the states of the databases respectively, and the second client submits the bill transaction to the alliance chain system;
the system accounting node constructs a block and sends a sequencing node; and sequencing the transactions in the system by the sequencing node, and then sequentially chaining the transactions to complete the cloud computing resource metering.
The invention utilizes the alliance chain technology to measure the resource usage of the cross-organization cloud host, can ensure the transaction performance of the system, ensure the measurement mutual trust between a resource user and a provider, and simultaneously increase the robustness of the cloud federal platform.
Drawings
FIG. 1 is a block chain system structure diagram of a cross-enterprise cloud computing resource measurement federation;
FIG. 2 is a schematic diagram of a federation block chain structure;
fig. 3 is a schematic flowchart of a cross-enterprise cloud computing resource metering method based on a federation blockchain.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a reliable and mutually trusted bill data metering mode for the cross-organization cloud host service, and avoids the problems of unreliable metering data, high metering cost of a cloud federal center and the like caused by centralized metering.
The service of the cloud host mainly involves providing instances, metering the service by usage duration at the granularity of hours. The metering terms involved are as follows, and the billing will include fields for service provider entity and ID, service consumer entity and ID, total cost, duration of use (in hours), start time of use, end time, number of instances, number of vcpus per instance, amount of memory used per instance, network type, network bandwidth, and hard disk capacity. The information of the service provider and the user and the total expense of the bill are necessary items for realizing mutual charging and obtaining commercial income between subsequent cross-organization cloud service providers; and recording the used resource condition is set for the provider to better master the resource use condition.
Fig. 1 is a schematic structural diagram of a cross-enterprise cloud computing resource metering federation blockchain system. As shown in fig. 1, the cross-enterprise cloud computing resource metering federation blockchain system includes nodes such as a client, a Certificate Authority (CA), a sequencing node (order), a synchronization node (Peer), and the like. A user applies for leasing of cloud services through a Cl-interest node; the CA node is responsible for the identity authentication of the members of the alliance chain; the Orderer node sequences the received transactions to generate a block and broadcasts the block to the Peer node. The Peer nodes can be divided into four types, namely an Endorser (endorsement node), a commit node, a Leader node and an Anchor node, wherein the Endorser (endorsement node) is responsible for checking a transaction proposal, checking the logic of the transaction according to self rules and executing intelligent contract terms; after receiving the transaction request, a Committee (accounting node) performs verification endorsement, executes transaction operation, shares a transaction result to an alliance chain ledger, and maintains the alliance chain and the ledger; the Leader node is connected to the sequencing service and forwards the received block to other nodes in the organization; anchors are used for communication between different scientific research institutions.
After the cloud host service is used, the billing node in the alliance chain generates a block of the bill information to prepare uplink. The block format designed in this implementation is shown in fig. 2. Each block includes: a block header, a block body, and block metadata; wherein the block header part includes: block number, hash value of current block transaction, hash value of previous block transaction. The block body part comprises: a plurality of transaction information, such as transaction 1, transaction 2, transaction 3, etc.; each transaction portion includes: the transaction header, the chain code name, the chain code version, and the encrypted signature, the transaction bill data, the transaction endorsement result, and the transaction simulation return result information for creating the transaction party. The tile metadata portion includes: creating a node certificate, creating a node signature, creating a block, sorting the node signature, and marking each transaction.
Fig. 3 is a schematic flowchart of a cross-enterprise cloud computing resource metering method based on a federation blockchain. As shown in fig. 3, the metering method includes the steps of:
and a cloud federation is constructed, computing and storage resources of each organization are gathered, and mutual access sharing and uniform scheduling management of the resources are realized.
Both the resource provider and the resource user, namely both the parties participating in the cloud service metering service, need to perform identity authentication, apply for a Certificate Authority (CA) of the alliance chain, and join the alliance chain.
The Certificate Authority (CA) of the alliance chain verifies the personal and organization information of the applicant, and issues the certificate after the verification is passed. The certificate is stored in the personal computer of the applicant, and the certificate content comprises: the information of the applicant public key, the applicant personal and organization information, the certificate authority information, the valid time, the certificate serial number and the like, and the signature encrypted by the certificate authority by the private key of the certificate authority.
And the resource user accesses the cloud federation platform to apply for the use of the cloud computing resources. The resource provider verifies the identity certificate information of the resource provider through the public key of the user and then approves the resource provider to use, the resource user obtains the resource which is approved to use, the resource provider starts timing, the user releases the resource after using, and the resource provider stops timing.
The resource provider converts the example resource amount (vCPU number, memory size, hard disk capacity and network bandwidth) and the use duration record applied by the resource user into corresponding amount to generate a settlement bill, namely specific transaction content in the block, and the provider and the user confirm and add digital signatures formed by private keys of the provider and the user. The settlement bill includes fields such as service provider organization and ID, service consumer organization and ID, total cost, duration of use (measured in hours), start time of use, end time, number of instances, number of vcpus per instance, size of memory used per instance, network type, network bandwidth, and hard disk capacity.
The provider and the user update the local database state of the provider and the user respectively, and the resource provider serves as a client node to submit the bill transaction to the alliance chain system.
The endorsement node verifies the certificate of the client node and the digital signatures of both transaction parties by using the client public key.
After the verification is passed, the client node sends the transaction to the sequencing node; the sort node performs consensus sorting on transactions in the system and constructs blocks, the structure of which is shown in fig. 2. The block header stores hash value information connected with other blocks, so that block information can be conveniently searched. The sorting node performs hash operation on the contents such as transaction information, block metadata and the like to obtain the block hash value, and constructs the contents such as the block number, the current block hash value, the previous block hash value and the like into a block header. The block stores the actual transaction bill, each block may contain multiple transactions, and each transaction stores the detailed information of each transaction. The transaction header stores the used chain code information. The chain code (i.e. intelligent contract) is an essential component of the blockchain, and in the embodiment of the invention, the chain code is designed as a program for automatically modifying the local database data of both transaction parties, so that the bill record can be realized through different chain codes when the system provides multiple services. The signatures of both transaction parties also need to be recorded in each transaction, so that the safety and reliability of data are ensured; recording the transaction endorsement result, and safely linking the transaction party after the endorsement result is verified by the endorsement node; and recording a transaction simulation return result, namely a result obtained after the local databases of the two parties are modified, and providing a simulation result for the subsequent actual uplink. In the design of the block chain metering system, block metadata records information of each block, the authenticity, reliability and traceability of the block are guaranteed, the block metadata comprises information such as a node certificate, a public key and a signature of a created block, block creation time and a sequencing node signature, and if block information is wrong or suspicious, a user can position a node of the created block for checking, so that the safety and reliability of the system are improved.
And broadcasting the block to a leader node in the alliance chain system by the sequencing node, synchronizing the block to a billing node by the leader node, and chaining after checking to finish cloud computing resource metering.
The embodiment of the invention utilizes the alliance chain technology to measure the resource usage of the cross-organization cloud host, can ensure the transaction performance of the system, ensure the measurement mutual trust between a resource user and a provider, and simultaneously increase the robustness of the cloud federal platform.
Correspondingly, an embodiment of the present invention provides a federated block chain-based cross-enterprise cloud computing resource metering system, including: the system comprises a block chain alliance system and a plurality of clients, wherein each client is provided with a database for storing settlement bill information.
In one example, a resource user accesses a cloud federation platform through a first client to apply for the use of cloud computing resources; the resource provider verifies the identity certificate information of the resource provider through the public key of the second client user and then approves the resource provider for use, and the resource provider obtains the resource which is approved for use and releases the resource after use;
the second client generates a settlement bill, and both the provider and the user confirm and add digital signatures of both the provider and the user, wherein the digital signatures are formed by private keys of both the resource provider and the resource user;
the first client and the second client update the states of the databases respectively, and the second client submits the bill transaction to the alliance chain system;
the system accounting node constructs a block and sends a sequencing node; and sequencing the transactions in the system by the sequencing node, and then sequentially chaining the transactions to complete the cloud computing resource metering.
It will be obvious that many variations of the invention described herein are possible without departing from the true spirit and scope of the invention. Accordingly, all changes which would be obvious to one skilled in the art are intended to be included within the scope of this invention as defined by the appended claims. The scope of the invention is only limited by the claims.
Claims (8)
1. A cross-enterprise cloud computing resource metering method based on a federation blockchain is characterized by comprising the following steps:
a resource user accesses a cloud federation platform to apply for cloud computing resource usage; the resource provider verifies the identity certificate information of the resource provider through the public key of the user and then approves the resource provider for use, and the resource user obtains the resource which is approved for use and releases the resource after use;
the resource provider generates a settlement bill, and both the provider and the user confirm and add digital signatures of both the provider and the user, wherein the digital signatures are formed by private keys of both the resource provider and the resource user;
the resource provider and the resource user update the database state respectively, and the resource provider is used as a client node to submit the bill transaction to the alliance chain system;
the system accounting node constructs a block and sends a sequencing node; and sequencing the transactions in the system by the sequencing node, and then sequentially chaining the transactions to complete the cloud computing resource metering.
2. The method of claim 1, wherein the system accounting node constructs a block, sends a sequencing node; the sequencing node sequentially chains the transactions in the system after sequencing, and finishes the metering step, and comprises the following steps:
the client node sends the transaction to the sequencing node; the sorting node performs consensus sorting on transactions in the system and constructs a block, the sorting node performs hash operation on transaction information and block metadata content to obtain a block hash value, and constructs a block head from a block number, a current block hash value and a previous block hash value;
and broadcasting the block to a leader node in the alliance chain system by the sequencing node, synchronizing the block to a billing node by the leader node, and chaining after checking to finish cloud computing resource metering.
3. The method of claim 1, wherein the endorsement node verifies the client node's certificate and the digital signatures of both parties to the transaction using the client public key.
4. The method of claim 1, wherein both the resource provider and the resource consumer apply for a certificate authority of the federation chain to join the federation chain; the certificate management organization of the block chain of the alliance verifies the personal and organization information of the applicant, and issues a certificate after the verification is passed; the certificate is stored in the personal computer of the applicant, and the certificate content comprises: the information of the applicant public key, the applicant personal and organization information, the certificate authority information, the valid time, the certificate serial number and the like, and the signature encrypted by the certificate authority by the private key of the certificate authority.
5. A federated blockchain-based cross-enterprise cloud computing resource metering system, comprising: the block chain system of alliance and a plurality of customer end, every customer end is provided with the database that is used for storing settlement bill information respectively: it is characterized in that the preparation method is characterized in that,
the resource user accesses the cloud federation platform through the first client to apply for the use of the cloud computing resources; the resource provider verifies the identity certificate information of the resource provider through the public key of the second client user and then approves the resource provider for use, and the resource provider obtains the resource which is approved for use and releases the resource after use;
the second client generates a settlement bill, and both the provider and the user confirm and add digital signatures of both the provider and the user, wherein the digital signatures are formed by private keys of both the resource provider and the resource user;
the first client and the second client update the states of the databases respectively, and the second client submits the bill transaction to the alliance chain system;
the system accounting node constructs a block and sends a sequencing node; and sequencing the transactions in the system by the sequencing node, and then sequentially chaining the transactions to complete the cloud computing resource metering.
6. The system of claim 5, wherein the system accounting node constructs a block, sending a sequencing node; the sequencing node sequentially chains the transactions in the system after sequencing, and finishes the metering step, and comprises the following steps:
the client node sends the transaction to the sequencing node; the sorting node performs consensus sorting on transactions in the system and constructs a block, the sorting node performs hash operation on transaction information and block metadata content to obtain a block hash value, and constructs the contents such as a block number, a current block hash value and a previous block hash value into a block header;
and broadcasting the block to a leader node in the alliance chain system by the sequencing node, synchronizing the block to a billing node by the leader node, and chaining after checking to finish cloud computing resource metering.
7. The system of claim 5, wherein the endorsement node verifies the client node's certificate and the digital signatures of both parties to the transaction using the client public key.
8. The system of claim 5, wherein both the resource provider and the resource consumer apply for a certificate authority of the federation chain to join the federation chain; the certificate management organization of the block chain of the alliance verifies the personal and organization information of the applicant, and issues a certificate after the verification is passed; the certificate is stored in the personal computer of the applicant, and the certificate content comprises: the information of the applicant public key, the applicant personal and organization information, the certificate authority information, the valid time, the certificate serial number and the like, and the signature encrypted by the certificate authority by the private key of the certificate authority.
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