A Study of Security of Cloud Using MSB Stegnography

Cloud computing is an important issue in data storage security since the whole data is made available through a number of interconnected resource pools which permit the access of data through virtual machines. This transfers the software framework and databases to large data centers where data processing actually takes place. Since the resources pools are distributed in various parts of the world, data and services management can not be completely accurate. Therefore, the confidentiality and protection of data is highly difficult. We proposed an efficient and method to ensure data security in cloud computing by hiding data in the so-called steganography images, in order to ensure the privacy and security of data-at - rest in cloud computing. The article aims specifically at stopping unauthorized users from accessing data from cloud data storage centres. This scheme stores data within the edges of color images at cloud data storage centers and retrieves data if necessary. Cloud is a very common device. Cloud computing is the model for enabling easy access to a shared pool of configurable computer resources ( e.g. networks , servers , storage, apps and services) on a shared demand basis, which can be easily supplied and released with minimal effort of interaction between service providers. Cloud computing allows cloud providers to raise or eliminate startup costs. In cloud computing , data security is the biggest challenge.