Cloud computing is a recent trend of technology that aims to provide unlimited, on-demand, elastic computing and data storage resources. In this context, cloud services decrease the need for local data storage and the infrastructure costs. However, hosting confidential data at a cloud storage service requires the transfer of control of the data to a semi-trusted external provider. Therefore, data confidentiality is the top concern from the cloud issues list. Recently, three main approaches have been introduced to ensure data confidentiality in cloud services: data encryption; combination of encryption and fragmentation; and fragmentation. Besides, other strategies use a mix of these three main approaches. In this paper, we present i-OBJECT, a new approach to preserve data confidentiality in cloud environments. The proposed mechanism uses information decomposition to split data into unrecognizable parts and store them in different cloud service providers. Experimental results show the potential efficiency of i-OBJECT.
['Eliseu C. Branco', 'José Maria Monteiro', 'Roney Silva', 'Javam C. Machado']
A New Approach to Preserving Data Confidentiality in the Cloud