International Journal of Computer Applications
The advantage of cloud computing is everlasting but it brings more issues including security. Double-checking the security of cloud computing is a foremost factor in the cloud computing natural environment, as users often store sensitive data with cloud storage providers but these providers may be untrusted. Cloud storage providers may be single cloud or multi-cloud. But it is found that the research into the use of multi-clouds providers to maintain security has received less attention from the research community than the use of single clouds.