CN104506514A - Cloud storage access control method based on HDFS (Hadoop Distributed File System) - Google Patents
Cloud storage access control method based on HDFS (Hadoop Distributed File System) Download PDFInfo
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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
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—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]
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Abstract
The invention discloses a cloud storage access control method based on HDFS (Hadoop Distributed File System). The method comprises the steps of constructing an access control safety designing module, a permission judging algorithm module, a multiuser data isolating and sharing module and an HDFS based cloud storage system access control realization module, wherein an access control safety module is used for defining according to the traditional RBAC (Role-Based Access Control); the permission judging algorithm module is used for judging whether a subject has the permission to access to corresponding objects or not according to a defined algorithm, so as to realize safe access to cloud storage; a multiuser isolating and sharing design module is used for realizing the isolating and sharing of data of multiple users in an HDFS based cloud storage system; an HDFS based cloud storage system access control module is used for constructing Hadoop groups, deploying safety control modules and constructing a safety system architecture of the cloud storage system. The method is applied to an HDFS based cloud storage platform, and the isolating and sharing of the data of the multiple users can be effectively realized through analyzing the safety and performance of the cloud storage system.
Description
Technical field
The present invention relates to the technical fields such as cloud storage, access control, information security, specifically a kind of based on HDFS as cloud storage platform, according to the cloud memory access control method based on HDFS formulated herein, judge whether user has the access rights of specific data, realize the isolation of data between multi-user with shared.
Background technology
Cloud computing, as a kind of new business model, changes the understanding of people to architecture, software dispatch, development mode, data storage etc. up hill and dale.Cloud computing adopts the pattern of pay as required (pay as you go), and user can obtain almost limitless memory space and enterprise level service quality from cloud service provider (Cloud Service Provider, CSP).Therefore, it can help business and government to reduce the cost overhead of data storage and data management.Cloud storage is the Memory Extension based on cloud computing, and it is a kind of new memory technology, and it comprises cluster application, grid and distributed file system, and this system provides data to store and Operational Visit by the dissimilar network storage equipment.Along with the development of cloud memory technology, increasing individual and enterprise adopt cloud storage system to dispose their business.
But cloud stores and is also faced with various challenge, and a sixty-four dollar question is exactly the fail safe of data, and unwarranted access can have influence on confidentiality and the integrality of data.Owing to being that commercial server in trusted context organizes mass data at the beginning of Hadoop design; therefore fail safe is not driving factors in its exploitation always; along with Hadoop becomes more and more popular; relative safe access control technology is more and more subject to the attention of researcher; in cloud storage platform, how to protect the data-privacy of user, what realize that the safe access control of user to data become cloud field of storage most importantly one of to study a question.
Summary of the invention
The one that theres is provided for the deficiencies in the prior art method based on the cloud memory access control technology of HDFS (Hadoop Distributed File System) is provided, the method is based on the access control model of traditional RBAC (Role-Based Access Control), by RBAC models applying in the cloud storage platform based on HDFS, realize according to authority decision algorithm the isolation that cloud stores files rank; Secondly, on the basis divided user based on linux system, the concept of proposition shared group realizes the data sharing between multi-user; Finally build a cloud storage system based on HDFS, by the analysis to its fail safe and performance, show that this method can realize the access control of user data effectively.
The object of the present invention is achieved like this:
Based on a cloud memory access control method of HDFS, the method comprises following concrete steps:
A) cloud storage system access control model, is set up
Based on traditional RBAC access control model, be structured in by RBAC in the cloud memory access control system based on HDFS, in RBAC, key element comprises: main body (S), role (R), object (O), authority (P); The main consuming body safety label (SSL), object safety label (OSL) describe Subjective and Objective, adopt authority decision algorithm (Permission Judging Algorithm, PJA) realization body is to the secure access of object, and it is defined as follows:
I) main body safety label (SSL): for main body, each main body can have multiple role, and the role of main body is described by a role set, and it is defined as:
;
II) object safety label (OSL): adopt tally set to identify object, each object can both be described by a tally set, and it is defined as:
;
In order to realize safe access control flexibly, the middle sequence expression formula that each authority P is made up of label and the logic connective of object, wherein logic connective comprise with (& &) or (||) and non-(! );
Based in the cloud storage system of HDFS, the authority of all objects all can be represented by a tlv triple P (O, T, p), main body access rule in systems in which four-tuple (S, O, T, p) represent, wherein S refers to main body, O refers to object, and T refers to access type, and p refers to logical operator;
B), authority decision algorithm
Authority decision algorithm can realize judging whether main body has permission access object, and here is the definition of authority decision algorithm:
I) authority decision algorithm (PJA): according to authority decision algorithm PJA, sequence expression formula during rights expression one is made up of different label and logic connective, judges whether main body has permission access object, and this algorithm is divided into three steps:
Step 1: sequence rights expression in decomposition this expression formula of standardizing;
Step 2: according to the result of Step 1, changes middle sequence expression formula into postorder expression formula;
Step3: according to the tally set TagSet of object, the expression formula in standardization Step 2, calculates the value of rights expression, if true, then can granted access, otherwise cannot granted access;
C), data sharing is realized based on shared group
In cloud storage management system, a file or file are associated with its owner, and this file or file are associated with the access rights of user, if user A will realize the data sharing with user B, user A needs establishment shared group G, by user A and user A, the authority to data is associated with group G, equally, user A needs to invite B to be associated with group G, by adopting LDAP (Lightweight Directory Access Protocol) catalogue acquisition group, thus determined the Groups List of main body by group mapping services;
D), set up based on HDFS cloud storage system security control model
Set up the access control model based on HDFS (Hadoop Distributed File System) cloud storage system, this cloud storage system is based on master/slave distributed structure/architecture, it comprises a NameNode and multiple DataNode, safety control module is established as the core based on HDFS cloud storage system, in order to judge whether main body has permission access object, safety control module needs to obtain main body safety label (SSL), object safety label (OSL), these information are stored on NameNode, at the server end of NameNode, the data of user's request access, secure access control module authorized user access and specific data in the position of DataNode, in order to ensure the fail safe of data, cloud storage platform adopts the transfer of data encryption of HDFS, by attribute dfs.encrypt.data.transfer is set to true, can realize transfer of data encryption, other association attributes all needs to arrange in configuration file core-site.xml.
The invention provides a kind of cloud memory access control method based on HDFS, by authority decision algorithm, judge main body whether Internet access object, use network encryption and security attributes configuration to improve the fail safe of cloud storage system, achieve a kind of fine-grained safety access control method of the cloud storage system based on HDFS.
Accompanying drawing explanation
Fig. 1 is the cloud memory access Controlling model figure that the present invention is based on HDFS;
Fig. 2 is authority decision algorithm key diagram of the present invention;
Fig. 3 is the roll-over protective structure composition of the cloud storage system that the present invention is based on HDFS;
Fig. 4 is for the present invention is based on HDFS safe access control figure;
Fig. 5 is main body of the present invention, object definition figure;
Fig. 6 be the present invention with acquiescence cloud storage system upload download time Data Comparison figure;
Fig. 7 be the present invention with acquiescence cloud storage system upload download time curve comparison figure.
Embodiment
The present invention is in the cloud storage system based on HDFS (Hadoop Distributed File System), devise the access control method of a set of cloud storage system, by to the fail safe of cloud storage system and performance evaluation, the data isolation that effectively can realize multi-user with share.
The present invention is described in detail below.
Embodiment
In the present embodiment, build the access control model based on HDFS cloud storage system, this model adopts access control based roles technology, consult Fig. 1, the left side is the structure of main body safety label SSL, the right is the structure of object safety label OSL, the middle rule definition for access control and authority decision algorithm.
Based in the cloud memory access control system of HDFS, the Rule section of access control defines and reads (r), write (w) two kinds of access control types, and wherein each type is defined as follows:
Read (r): the authority of checking is had for the file in cloud storage system or the file under file and sub-folder.
Write (w): or the authority such as interpolation file or folder, amendment file content, Rename file or file is had for the file under the file file in cloud storage system and sub-folder.
Consult Fig. 2, in authority decision algorithm, sequence rights expression in first decomposing, carries out standardization processing by logical operation expression formula, operator, label etc. is separated, preserve in order; Then, by standardization later in sequence expression formula be converted into postorder expression formula; Finally, according to the authority decision algorithm of design, obtain the value of rights expression, realize the file-level isolation that cloud stores model essay control.
Next, consult Fig. 3, core based on the cloud storage system of HDFS is access control safety module, the data of HDFS can be accessed in order to realize authorized client, must realize appointing authentication and authorization, security documents will be delegated to the client, process etc. that need to use them by the user of that is certification.When needs realize certification time, the communication that access HDFS will relate between client, NameNode and DataNode, consults Fig. 4, first, when client wants NameNode node request access data, client transmission data name and block index information are to NameNode; Then, by secure access control module, NameNode can judge whether client has permission access, by authority decision algorithm, NameNode can send information and a symmetric key of data block, meanwhile, NameNode also can send the information of data block and a symmetric key to corresponding DataNode node; Finally, client accesses according to double secret key and data block information the DataNode specified, and the realization of DataNode contrast double secret key is mutual with client.
Finally for checking is based on the fail safe of the cloud memory access control system of HDFS, main body S1, S2 are set, corresponding object is O1, O2, and setup of attribute consults Fig. 5, in experimentation, S1, S2 can only access oneself data, can not data beyond access rights, achieve the isolation between data, in order to verify the data sharing between different user, the required data shared of shared group G11 association can be set up, thus realize the data sharing of different user.
Equally, in order to the performance that the cloud memory access verified based on HDFS controls, compared for and add before and after access control method, HDFS uploads download time.Consult Fig. 6, experiment comprises eight groups of data, the first row represents the size of experimental data, second and third line display is uploaded before adding safety access control method, the time of downloading data needs, fourth, fifth line display is uploaded after adding safety access control method, the time of downloading data needs, and the 6th, seven line displays upload, download time declines ratio.Consult Fig. 7, contrast the uplink time added before and after safety access control method, 10.99% is added than the time after adding before adding, contrast the download time added before and after safety access control method, 10.47% is added than the time after adding before adding, experiment shows that the safety access control method designed by the present invention is little on the overall performance impact based on HDFS cloud storage system, demonstrates the validity of the cloud memory access control method based on HDFS.
Claims (1)
1., based on a cloud memory access control method of HDFS, it is characterized in that the method comprises following concrete steps:
A) cloud storage system access control model, is set up
Based on traditional RBAC access control model, be structured in by RBAC in the cloud memory access control system based on HDFS, in RBAC, key element comprises: main body, role, object, authority; The main consuming body safety label, object safety label describe Subjective and Objective, and adopt authority decision algorithm realization body to the secure access of object, it is defined as follows:
I) main body safety label: for main body, each main body can have multiple role, and the role of main body is described by a role set, and it is defined as:
;
II) object safety label: adopt tally set to identify object, each object can both be described by a tally set, and it is defined as:
;
In order to realize safe access control flexibly, the middle sequence expression formula that each authority P is made up of label and the logic connective of object, wherein logic connective comprise with (& &) or (||) and non-(! );
Based in the cloud storage system of HDFS, the authority of all objects all can be represented by a tlv triple (O, T, p), main body access rule in systems in which four-tuple (S, O, T, p) represents, wherein S refers to main body, and O refers to object, and T refers to access type, and p refers to logical operator;
B), authority decision algorithm
Authority decision algorithm can realize judging whether main body has permission access object, the definition of authority decision algorithm:
I) authority decision algorithm: according to authority decision algorithm, sequence expression formula during rights expression one is made up of different label and logic connective, judges whether main body has permission access object, and this algorithm is divided into three steps:
Step 1: sequence rights expression in decomposition this expression formula of standardizing;
Step 2: according to the result of Step 1, changes middle sequence expression formula into postorder expression formula;
Step 3: according to the tally set TagSet of object, the expression formula in standardization Step 2, calculates the value of rights expression, if true, then can granted access, otherwise cannot granted access;
C), data sharing is realized based on shared group
In cloud storage management system, a file or file are associated with its owner, and this file or file are associated with the access rights of user, if user A will realize the data sharing with user B, user A needs establishment shared group G, and by user A and user A, the authority to data is associated with group G, equally, user A needs to invite B to be associated with group G, by adopting ldap directory acquisition group, thus determines the Groups List of main body by group mapping services;
D), set up based on HDFS cloud storage system security control model
Set up the access control model based on HDFS cloud storage system, this cloud storage system is based on master/slave distributed structure/architecture, it comprises a NameNode and multiple DataNode, safety control module is established as the core based on HDFS cloud storage system, in order to judge whether main body has permission access object, safety control module needs to obtain main body safety label and object safety label, these information are stored on NameNode, at the server end of NameNode, the data of user's request access, secure access control module authorized user access and specific data in the position of DataNode, in order to ensure the fail safe of data, cloud storage platform adopts the transfer of data encryption of HDFS, by attribute dfs.encrypt.data.transfer is set to true, can realize transfer of data encryption, other association attributes all needs to arrange in configuration file core-site.xml.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104735087A (en) * | 2015-04-16 | 2015-06-24 | 国家电网公司 | Public key algorithm and SSL (security socket layer) protocol based method of optimizing security of multi-cluster Hadoop system |
| CN104767761A (en) * | 2015-04-23 | 2015-07-08 | 四川师范大学 | Cloud storage platform access control method and device |
| CN105357201A (en) * | 2015-11-12 | 2016-02-24 | 中国科学院信息工程研究所 | Access control method and system for object cloud storage |
| CN105656903A (en) * | 2016-01-15 | 2016-06-08 | 国家计算机网络与信息安全管理中心 | Hive platform user safety management system and application |
| CN105740724A (en) * | 2016-01-28 | 2016-07-06 | 浪潮通用软件有限公司 | Authority management method and device |
| CN106254466A (en) * | 2016-08-05 | 2016-12-21 | 河海大学常州校区 | HDFS distributed file sharing method based on LAN |
| CN107122406A (en) * | 2017-03-24 | 2017-09-01 | 东华大学 | Towards the access control method of data field in a kind of Hadoop platform |
| CN107196951A (en) * | 2017-06-12 | 2017-09-22 | 北京明朝万达科技股份有限公司 | The implementation method and firewall system of a kind of HDFS systems fire wall |
| WO2017206960A1 (en) * | 2016-06-03 | 2017-12-07 | 中兴通讯股份有限公司 | Data transmission method, data transfer client and data transfer executor |
| CN107944296A (en) * | 2017-11-30 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of cloud storage system and its user authority control method, equipment, storage medium |
| CN108092945A (en) * | 2016-11-22 | 2018-05-29 | 中兴通讯股份有限公司 | Definite method and apparatus, the terminal of access rights |
| CN108270718A (en) * | 2016-12-30 | 2018-07-10 | 北京观数科技有限公司 | A kind of control method and system based on Hadoop clusters |
| CN109753819A (en) * | 2018-12-26 | 2019-05-14 | 北京天融信网络安全技术有限公司 | A kind for the treatment of method and apparatus of access control policy |
| CN109858208A (en) * | 2019-02-27 | 2019-06-07 | 武汉大学 | The access control method and device of semantic relation reasoning based on user and resource |
| CN110580127A (en) * | 2018-06-07 | 2019-12-17 | 华中科技大学 | Resource management method and resource management system based on multi-tenant cloud storage |
| CN110968894A (en) * | 2019-11-28 | 2020-04-07 | 西安理工大学 | Fine-grained access control scheme for game business data |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307185A (en) * | 2011-06-27 | 2012-01-04 | 北京大学 | Data isolation method used in storage cloud |
| US20140310235A1 (en) * | 2013-04-11 | 2014-10-16 | Oracle International Corporation | Seasonal trending, forecasting, anomaly detection, and endpoint prediction of java heap usage |
-
2014
- 2014-12-18 CN CN201410786428.3A patent/CN104506514A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307185A (en) * | 2011-06-27 | 2012-01-04 | 北京大学 | Data isolation method used in storage cloud |
| US20140310235A1 (en) * | 2013-04-11 | 2014-10-16 | Oracle International Corporation | Seasonal trending, forecasting, anomaly detection, and endpoint prediction of java heap usage |
Non-Patent Citations (1)
| Title |
|---|
| 沈晴霓等: "《一种面向多租户云存储平台的访问控制策略》", 《小型微型计算机系统》 * |
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| CN104735087B (en) * | 2015-04-16 | 2020-11-20 | 国家电网公司 | Multi-cluster Hadoop system security optimization method based on public key algorithm and SSL protocol |
| CN104735087A (en) * | 2015-04-16 | 2015-06-24 | 国家电网公司 | Public key algorithm and SSL (security socket layer) protocol based method of optimizing security of multi-cluster Hadoop system |
| CN104767761B (en) * | 2015-04-23 | 2017-10-13 | 四川师范大学 | A kind of cloud storage platform access control method and device |
| CN104767761A (en) * | 2015-04-23 | 2015-07-08 | 四川师范大学 | Cloud storage platform access control method and device |
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| CN106254466B (en) * | 2016-08-05 | 2019-10-01 | 河海大学常州校区 | HDFS distributed file sharing method based on local area network |
| CN108092945B (en) * | 2016-11-22 | 2022-02-22 | 中兴通讯股份有限公司 | Method and device for determining access authority and terminal |
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| CN108270718A (en) * | 2016-12-30 | 2018-07-10 | 北京观数科技有限公司 | A kind of control method and system based on Hadoop clusters |
| CN107122406A (en) * | 2017-03-24 | 2017-09-01 | 东华大学 | Towards the access control method of data field in a kind of Hadoop platform |
| CN107122406B (en) * | 2017-03-24 | 2020-08-11 | 东华大学 | Data field-oriented access control method on Hadoop platform |
| CN107196951A (en) * | 2017-06-12 | 2017-09-22 | 北京明朝万达科技股份有限公司 | The implementation method and firewall system of a kind of HDFS systems fire wall |
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| CN110968894A (en) * | 2019-11-28 | 2020-04-07 | 西安理工大学 | Fine-grained access control scheme for game business data |
| CN110968894B (en) * | 2019-11-28 | 2023-05-26 | 西安理工大学 | Fine granularity access control scheme for game service data |
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