CN105488431B - Block chain system authority management method and device - Google Patents
Block chain system authority management method and device Download PDFInfo
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- CN105488431B CN105488431B CN201510860229.7A CN201510860229A CN105488431B CN 105488431 B CN105488431 B CN 105488431B CN 201510860229 A CN201510860229 A CN 201510860229A CN 105488431 B CN105488431 B CN 105488431B
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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
- G06F21/6227—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 where protection concerns the structure of data, e.g. records, types, queries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
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Abstract
The invention discloses a block chain system authority management method and a block chain system authority management device, which can generate an authority tree taking a user as a root node according to user registration information after the user successfully logs in a system, wherein the authority tree takes user roles, authorities and a block chain as sub-nodes of each layer; when the user operates the block chain, the control module is informed to traverse the authority tree corresponding to the user, whether the user has legal authority to perform the operation on the block chain is judged according to the traversal result of the control module, if yes, the operation is allowed, and if not, the operation is forbidden. The permission tree is adopted to carry out flexible permission control on the permission management, and because the permission tree has the characteristics of few layers and quick updating, the permission resource consumption can be reduced, and the permission management efficiency is ensured.
Description
Technical Field
The present invention relates to the field of blockchain technologies, and in particular, to a system and a method for blockchain management.
Background
Since the introduction of the bitcoin system in 2009, decentralized cryptocurrencies represented by bitcoins and their derived competitive coins have received much attention. The currency system is characterized in that a distributed shared general ledger is constructed based on a block chain, so that the safety, reliability and decentralization characteristics of system operation are guaranteed.
The blockchain refers to a technical scheme for collectively maintaining a reliable database in a decentralized and distrust-free mode. The technical scheme mainly enables any plurality of nodes participating in the system to generate data blocks through a string of data blocks which are associated by using a cryptography method, wherein each data block contains all information exchange data of the system within a certain time, and data fingerprints are generated for verifying the validity of the information and linking the next database block.
the rights management is the core content of the blockchain system, and because the blockchain system has huge number of users and numerous blocks, the traditional rights management technology has the problems of large resource consumption and low rights control efficiency.
Traditional rights management techniques can be divided into three categories: access list control, mandatory access control, and role-based access control. The access list control method performs authority management through a list, a simple access list is an array formed by users and resources, and the authority management efficiency is low when the data volume is huge. In the mandatory access control method, once the system is established, the access control of user behavior is enforced, and the user cannot change the security level or the security attribute of the object. The role-based access control is a strategy for resource access based on user responsibility attributes, and the core of the role-based access control is to clarify the user properties and flexibly authorize the resource access authority, however, the role-based access control still has the following disadvantages: firstly, the workload of role distribution and authority grant is still large in the authorization process; the second is the lack of a flexible dynamic authorization mechanism.
therefore, it is an urgent need in the industry to provide an efficient rights management method applicable to a blockchain system.
disclosure of Invention
The invention aims to provide a block chain-oriented high-efficiency authority management method and system.
According to an aspect of the present invention, there is provided a method for managing block chain system permissions, including: after a user successfully logs in the system, the system generates an authority tree taking the user as a root node according to user registration information, wherein the authority tree takes user roles, authorities and block chains as sub-nodes of each layer; when the user operates the block chain, the system traverses the authority tree corresponding to the user, judges whether the user has legal authority to perform the operation on the block chain, if so, the operation is allowed, and if not, the operation is forbidden.
Wherein, the following steps are carried out before generating the authority tree: after collecting user information, user role information, user authority information and blockchain information, the blockchain system establishes the following sets: a user set, a user role set, a user permission set and a block chain set.
Specifically, the method further comprises: the system establishes a corresponding authority tree according to the user set, the role set, the authority set and the block chain set: the system establishes a permission tree by taking each user as a root; establishing a second layer of child nodes according to the user roles; establishing a third-layer child node according to the corresponding authority established by the user and each role; and establishing leaf nodes according to the data resources in the data source set.
Alternatively, user roles and permissions may be combined arbitrarily at configuration time.
Preferably, the user role and privilege combination may be mapped to a specified blockchain.
alternatively, the user roles may be configured as an administrator role and a general user.
Alternatively, the permissions may be configured to be modified, created, read, and/or deleted.
Alternatively, the blockchain may be other types of data resources.
According to another aspect of the present invention, the present invention further provides a device for managing block chain system rights, including: the control module is used for generating an authority tree which takes the user as a root node according to the user registration information after the system is successfully logged in by the user, and the authority tree takes the user role, the authority and the block chain as each layer of child nodes; and the judging module is used for informing the control module to traverse the authority tree corresponding to the user when the user operates the block chain, judging whether the user has legal authority to perform the operation on the block chain according to the traversal result of the control module, if so, allowing the operation, and if not, forbidding the operation.
The resource collection module is used for collecting user information, user role information, user authority information and a block chain, and establishing the following set: a user set, a user role set, a user permission set and a block chain set.
Specifically, the process of the control module establishing the corresponding authority tree includes: establishing a right tree by taking each user as a root; establishing a second layer of child nodes according to the user roles; establishing a third-layer child node according to the corresponding authority of the user and each role; leaf nodes are established according to the blockchains in the blockchain set.
Optionally, the control module providing the configuration mode comprises: the user roles and the permissions can be combined at will; alternatively, user role and permission combinations may be mapped to a specified blockchain.
Optionally, the role and authority configuration includes: the user role is configured to be an administrator role and a common user role; the permissions are configured to be modified, new, read, and/or deleted.
The invention has the beneficial effects that: the authority management method and the authority management device adopt an authority management system with separated users, user roles, user authorities and block chain objects, carry out flexible authority control by establishing the authority tree, and can reduce the consumption of authority resources and guarantee the efficiency of authority management due to the fact that the authority tree has the characteristics of few layers and quick updating.
Drawings
FIG. 1 is a simplified flowchart of a method for managing block chain system permissions according to the present invention.
FIG. 2 is a diagram of a rights tree of the block chain system rights management method according to the present invention.
FIG. 3 is a flowchart illustrating a block chain system privilege management method according to the present invention.
Fig. 4 is a schematic diagram of the structure of the rights management unit according to the present invention.
Detailed Description
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention provides a rights management method, which is shown in figure 1 and comprises the following steps:
s10, after the system successfully logs in the system, the system generates an authority tree taking the user as a root node according to the user registration information, and the authority tree takes the user role, the authority and the data resource as each layer of child nodes;
And S20, when the user operates the data resource, the system traverses the authority tree corresponding to the user, judges whether the user has legal authority to perform the operation on the data resource, if so, the operation is allowed, and if not, the operation is forbidden.
The information resource may be a data set storing data, such as a blockchain resource, and the operation performed by the user may be various, and may be set by the user according to the actual requirement, and may generally be an operation of reading, modifying, creating, deleting, and the like, performed on the data resource.
Further, in step S10, first, in order to establish the authority tree, the system needs to collect the user information, the user role information, the user authority information and the blockchain resource, and establish a database including the user set, the user role set, the authority set and the blockchain set. Then, the system establishes a corresponding authority tree according to the user set, the role set, the authority set and the block chain resource set. For each user in the user set, as shown in fig. 2, each user is used as a root to establish a permission tree, for example, the permission trees are respectively established by a user 1, a user 2 and a user 3, and the permission trees established by each user are distinguished by different lines; establishing a second-layer child node of the authority tree according to the user role set, wherein the same user can have a plurality of roles, for example, the user 1 can be an administrator role or a common user role, and after logging in, the user can freely select which role identity is used for resource access; taking the corresponding authority of the user and each role as a third-layer child node of the authority tree; and taking the blockchain resources in the blockchain resource set as leaf nodes of the authority tree. Thus, the authority tree corresponding to each user is established by taking each user as a root- > user role as a second-layer child node- > authority corresponding to the user role as a third-layer child node- > block chain resource as a leaf node.
Further, the user roles may be of various types, see fig. 2, and may be administrator roles and ordinary user roles; similarly, the authority may have various types of operations, such as creating, modifying, reading, deleting, etc. as shown in the authority tree of fig. 2; different user roles correspond to different authorities, and the roles and the authorities can be combined at will. And mapping the combination of the role and the authority to a certain data resource, and reflecting the specific operation authority of the data resource. The roles, the permissions and the mapping objects can be combined arbitrarily. The system can judge the validity of the user access according to the role and the authority combination mapped by each data resource.
furthermore, the authority tree can be dynamically updated, the number of the sub-node layers of the authority tree can be increased without limit, and user roles, user authority information and data resource information can be increased, modified or deleted at any time, so that the method can be suitable for flexible and changeable use scenes.
The implementation of the present invention is described in further detail below with reference to fig. 3 in conjunction with fig. 2.
Step S301, a user logs in the system for the first time, necessary registration information needs to be filled in, and after the registration is successful, basic information including user ID, passwords and the like is input to log in the system.
Step S302, the system judges the user login information, and if the user login information passes the authentication, the step S303 is carried out; otherwise go to step S307.
Step S303, the system generates a corresponding authority tree according to the registration information of the user, wherein the authority tree takes the user as a root and takes the role, authority and block chain resources as sub nodes of each layer;
Step 304, the user performs a certain operation on a certain block chain resource, and the system traverses and retrieves the authority tree corresponding to the user, for example, performs the authority tree traversal and retrieval by using a depth-first retrieval method or a breadth-first retrieval method.
Step 305, find an authority sub-tree which takes the target block chain resource as a leaf node and contains the role corresponding to the user, query the authority information corresponding to the user in the authority sub-tree, that is, search whether the corresponding authority includes the authority to be operated by the user according to the resource of the target block chain of the leaf node of the authority sub-tree, if yes, execute step 306, if no, execute step 307.
step 306, allow this operation to occur.
Step 307, this operation is prohibited.
The operation herein can be specifically set according to specific situations, for example, the operation can be modification, new creation, reading and/or deletion.
Based on the same principle, the invention provides an authority control device capable of flexibly modifying configuration and dynamically expanding authority hierarchy, please refer to fig. 4, the authority control device logically comprises a control module and a judgment module, the control module is used for generating an authority tree taking a user as a root node according to user registration information after the user successfully logs in the system, and the authority tree takes user roles, authorities and data resources (such as block chains) as subnodes of each layer; the judging module is used for informing the control module to traverse the authority tree corresponding to the user when the user operates the data resource, judging whether the user has legal authority to perform the operation on the data resource according to the traversal result of the control module, if so, allowing the operation, and if not, forbidding the operation.
In an embodiment provided by the present invention, the permission control device further includes a resource collection module, configured to collect user information, user role information, user permission information, and data resources, and establish a user set, a role set, a permission set, and a block chain set.
In an embodiment of the present invention, the specific process of the control module establishing the corresponding authority tree includes: establishing a right tree by taking each user as a root; establishing a second layer of child nodes according to the user roles; establishing a third-layer child node according to the corresponding authority established by the user and each role; leaf nodes are established according to the blockchains in the blockchain set.
In the process of establishing the authority tree, the control module provides flexible configuration parameters and modes, including but not limited to that user roles and authorities can be combined randomly; user roles and permission combinations may be mapped to specified data resources. The user role is configured to be an administrator role and a common user; the permissions are configured to be modified, new, read, and/or deleted.
in summary, the method and the device for rights management provided by the invention adopt a rights management system with separated users, user roles, user rights and block chain objects, and perform flexible rights control by establishing a rights tree, have the characteristics of few layers and quick updating, can reduce rights resource consumption, and give consideration to the efficiency of rights management.
in the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. A method for managing block chain system rights, comprising:
After a user successfully logs in a block chain system, generating an authority tree taking the user as a root node according to user registration information, wherein the authority tree takes user roles, authorities and block chains as sub nodes of each layer; after the block chain system collects the user information, the user role information, the user authority information and the block chain information, the following set is established: the system comprises a user set, a user role set, a user permission set and a block chain set; the block chain system generates a corresponding authority tree according to the user set, the user role set, the user authority set and the block chain set; the block chain system establishes an authority tree by taking each user as a root; establishing a second layer of child nodes according to each user role; establishing a third-layer child node according to each user and the corresponding user authority of each user role; establishing leaf nodes according to the block chains in the block chain set;
the block chain system takes user information, user role information, user authority information and block chain resources as resources to be uniformly managed, maps the combination of the user role and the user authority to a specified block chain, and judges the legality of user access according to the role and authority combination mapped by each data resource; and
When the user operates the target block chain, the system traverses the authority tree corresponding to the user, judges whether the user has legal authority to perform the operation on the target block chain, if so, the operation is allowed, and if not, the operation is forbidden; when the user needs to operate the target block chain, the system searches the authority tree corresponding to the user in a traversing manner, and the authority tree is searched and traversed by adopting a depth-first search method or an breadth-first search method; and finding an authority subtree which takes the target block chain as a leaf node and contains the role corresponding to the user, inquiring the corresponding authority information of the user in the authority subtree, searching whether the corresponding authority comprises the authority to be operated by the user according to the resource of the target block chain of the leaf node of the authority subtree, if so, allowing the operation, and otherwise, forbidding the operation.
2. The method of claim 1, wherein:
the roles are configured as an administrator role and a common user role; and
The permissions are configured to be modified, created, read, and/or deleted.
3. a device for managing block chain system authority used in the method of claim 1 or 2, comprising a control module and a judgment module, wherein:
The control module is used for generating an authority tree which takes the user as a root node according to user registration information after the user successfully logs in the system, and the authority tree takes user roles, authorities and block chains as sub-nodes of each layer; and
The judging module is used for informing the control module to traverse the authority tree corresponding to the user when the user operates the target block chain, judging whether the user has a legal authority to perform the operation on the target block chain according to the traversal result of the control module, if so, allowing the operation, and if not, forbidding the operation;
Wherein the right control device further comprises: the resource collection module is used for collecting user information, user role information, user authority information and block chain information, and establishing the following set: the system comprises a user set, a user role set, a user permission set and a block chain set;
The step of the control module establishing the corresponding authority tree comprises the following steps:
establishing a right tree by taking each user as a root;
Establishing a second layer of child nodes according to each user role;
Establishing a third-layer child node according to each user and the corresponding authority of each user role; and establishing leaf nodes according to the block chains in the block chain set.
4. the blockchain system privilege management device of claim 3, wherein the control module providing configuration modes comprises:
The combination of user roles and user permissions maps to a specified blockchain.
5. The blockchain system rights management apparatus of claim 3, wherein the user roles and the user rights configurations include:
The user roles are configured to be an administrator role and a common user role; and
The user permissions are configured to be modified, created, read, and/or deleted.
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| CN111259350A (en) * | 2020-01-10 | 2020-06-09 | 中国银联股份有限公司 | Access control method, device and computer readable storage medium |
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| CN111814176A (en) * | 2020-05-29 | 2020-10-23 | 上海申铁信息工程有限公司 | Block chain-based data access authority control method and device |
| CN111737323B (en) * | 2020-08-14 | 2021-03-16 | 支付宝(杭州)信息技术有限公司 | Information query method and device based on block chain and electronic equipment |
| CN112597544A (en) * | 2020-12-24 | 2021-04-02 | 北京工业大学 | Block chain-based industrial internet data security management system and method |
| CN116401640B (en) * | 2023-06-07 | 2023-09-22 | 国网福建省电力有限公司 | Block chain-based network alignment system and method for inconsistent power data |
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| US8271527B2 (en) * | 2004-08-26 | 2012-09-18 | Illinois Institute Of Technology | Refined permission constraints using internal and external data extraction in a role-based access control system |
| CN100458813C (en) * | 2006-06-02 | 2009-02-04 | 石杰 | Method for role-based access control model with precise access control strategy |
| US8806578B2 (en) * | 2010-05-05 | 2014-08-12 | Microsoft Corporation | Data driven role based security |
| CN103701801B (en) * | 2013-12-26 | 2015-07-15 | 四川九洲电器集团有限责任公司 | Resource access control method |
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