A Fine-Grained Coalition Access Control Policy for Jointly-Owned Resources in Collaborative Environments

2005 ◽  
Vol 16 (5) ◽  
pp. 1000 ◽  
Author(s):  
Hao LEI
Keyword(s):  
Access Control ◽  
Control Policy ◽  
Collaborative Environments ◽  
Access Control Policy ◽  
Fine Grained

Research on Access Control Based on CP-ABE Algorithm and Cloud Computing

2014 ◽  
Vol 513-517 ◽  
pp. 2273-2276
Author(s):  
Shao Min Zhang ◽  
Jun Ran ◽  
Bao Yi Wang
Keyword(s):  
Cloud Computing ◽  
Access Control ◽  
Control Policy ◽  
Massive Data ◽  
Access Control Policy ◽  
Fine Grained ◽  
Network Bandwidth ◽  
Private Key ◽  
Attribute Based Encryption ◽  
Ciphertext Policy

Ciphertext-Policy Attribute-based encryption (CP-ABE) mechanism is an extension of attribute-based encryption which associates the ciphertext and user's private key with the attribute by taking the attribute as a public key. It makes the representation of the access control policy more flexible, thus greatly reduces the network bandwidth and processing overhead of sending node brought by fine-grained access control of data sharing. According to the principle of CP-ABE encryption mechanism for this mechanism, an improved cloud computing-based encryption algorithm was proposed in this paper to overcome the deficiencies of permission changing process under the massive data. Experimental results show that compared with traditional methods, the new mechanism significantly reduces time-consuming.

scholarly journals Attribute - Semantic Based Access Control Policy Model for IoT

2019 ◽  
Vol 9 (1S4) ◽  
pp. 560-564
Keyword(s):  
Access Control ◽  
Control Policy ◽  
Sensitive Information ◽  
Access Control Policy ◽  
Trust Value ◽  
Policy Model ◽  
Fine Grained ◽  
Iot Devices ◽  
New Policies ◽  
High Level

Internet of Things (IoT) devices under cloud assistance is deployed in different distributed environment. It collects sensed data and outsources the data to remote server and user for sharing. As IoT is used in important fields like healthcare, business and research, the sensed data are sensitive information which needs to be protected. Encryption is usual technique to protect data from adversaries. A fine grained access control is essential for heterogeneous device involved social network. The existing access control policies were defined for predefined identity and role which needs to be changed in dynamic situations. Moreover, all the necessary policies cannot be defined in advance and new policies were demanded for new situational context. To solve these issues, this work design a model which calculate final trust value based on semantic information dynamically referring to ontology. a access control policy is also designed on semantic role of the device. The semantic technology is used for high level reasoning of the context situation

scholarly journals Fine Grained Access Control Policy with Advanced Encryption Standard in the Cloud Computing

2018 ◽  
Vol 7 (4.6) ◽  
pp. 1
Author(s):  
Krishna Keerthi Chennam ◽  
Lakshmi Mudda
Keyword(s):  
Access Control ◽  
Data Base ◽  
Control Policy ◽  
Third Party ◽  
Advanced Encryption Standard ◽  
Access Control Policy ◽  
Cloud Data ◽  
Storage Devices ◽  
Fine Grained ◽  
Attribute Based Encryption

The Data Base as a Service is a great example where the database engine and storage devices are in cloud data. This scheme allows customers to outsource data and store in cloud database on pay per user, scalable and flexible. But data confidentiality is in high risk when data is outsourced and stored in third party database. A trusted third party server must be maintaining the third party data base. There is a possibility of malicious administrator who can leaks the data which is stored in third party database. The best method is to encrypt the data and store in third party database but alone encryption is not sufficient. Even authorization is another problem that who can access the data. For data security and authorized of users, the fine grained access control policy Cipher text policy Attribute Based encryption (CP-ABE) is used to give access to authorized users only and the best symmetric encryption Advanced Encryption Standard(AES) is applied on data before outsourcing the data in cloud. 

XACML-Based Fine-Grained Security Policy for Distributed System

2011 ◽  
Vol 225-226 ◽  
pp. 848-851
Author(s):  
Ai Juan Zhang ◽  
Jing Xiang Gao ◽  
Cheng Ji
Keyword(s):  
Access Control ◽  
Software Development ◽  
Security Policy ◽  
Control Policy ◽  
Distributed Applications ◽  
Security Policies ◽  
Security Model ◽  
Access Control Policy ◽  
Fine Grained ◽  
Security Modeling

Distributed applications often require integrating security policies of collaborating parties. The integration must be able to support complex authorization specifications and the fine-grained resources access requirements that the various parties may have. But now security modeling is not considered as a vital part in software development. In this paper, it is proposed to integrate the design of access control policy into software development. In this paper, UML is used to model access control policy, and then a framework is designed to generate the security model result expressed in XACML and to verify the policy correct and complete.

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