Research on Access Control in Cloud Storage System: From Single to Multi-Clouds
Zhijie Fan,
Ya Xiao,
Chunmei Wang,
Bing Liu
Issue:
Volume 7, Issue 1, March 2018
Pages:
1-14
Received:
24 February 2018
Accepted:
21 March 2018
Published:
13 April 2018
Abstract: Implementation of access control in cloud storage system is the essential method to protect users’ data from revealing sensitive information. The paper mainly investigates key technologies of access control in cloud storage system, including intra cloud and among multi-clouds. Firstly, we discuss about the focuses in recent researches and challenges of access control in cloud storage system. The access control researches here refer to cipher-text and cross-domain access control in cloud storage system. The key technologies introduce Ciphertext-Policy Attribute-Based Encryption algorithm(CP-ABE), ontology based attributes mapping, algebra based policies integration, solutions for identification, access authorization and identity federation. And the status of these fields is described next. At last, we concluded this paper and proposed some directions in the future work of access control research in cloud storage system. This paper can help to understand the key technologies of access control in cloud storage and helpful in the future researches.
Abstract: Implementation of access control in cloud storage system is the essential method to protect users’ data from revealing sensitive information. The paper mainly investigates key technologies of access control in cloud storage system, including intra cloud and among multi-clouds. Firstly, we discuss about the focuses in recent researches and challenge...
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Assessment of Groundwater Quality Using Water Quality Index in and Around Korba City, Chhattisgarh, India
Issue:
Volume 7, Issue 1, March 2018
Pages:
15-21
Received:
15 September 2017
Accepted:
30 September 2017
Published:
22 May 2018
Abstract: The Korba city witnessed a sudden spurt in industrial activity with the establishment of Industrial complex. It is the industrial nucleus of Chhattisgarh state. The mixture of different kinds of untreated/ partially treated/ treated industrial wastes is being discharged through a number of drai passing in and around the Korba city. Further, the surface run off caused by rainfall also contribute to the groundwater pollution. In the present investigation, assessment of groundwater quality of drinking water sources in and around city of Korba has been carried out by using Water Quality Index (WQI). The groundwater quality data of pre and post monsoon seasons of the year 2013 and 2014 has been used for the calculation of water quality index. Fifteen parameters (TDS, HCO31-, SO4 2-, Cl1-, NO3 1-, Pb, Ca, Mg, Na, K, Fe, Mn, Ni, Cr and Cd) have been used to calculate the water quality index and each of the 15 parameters has been assigned a relative weight according to its relative importance in the overall quality of groundwater for drinking purpose. It was revealed that quality is not observed to improve in most of the locations after monsoon season period during the year 2013 but during the year 2014, the quality of groundwater is improved in post monsoon season in most of the samples.
Abstract: The Korba city witnessed a sudden spurt in industrial activity with the establishment of Industrial complex. It is the industrial nucleus of Chhattisgarh state. The mixture of different kinds of untreated/ partially treated/ treated industrial wastes is being discharged through a number of drai passing in and around the Korba city. Further, the sur...
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