Cloud computing is an emerging and popular method of accessing shared and dynamically configurable\nresources via the computer network on demand. Cloud computing is excessively used by\nmobile applications to offload data over the network to the cloud. There are some security and\nprivacy concerns using both mobile devices to offload data to the facilities provided by the cloud\nproviders. One of the critical threats facing cloud users is the unauthorized access by the insiders\n(cloud administrators) or the justification of location where the cloud providers operating. Although,\nthere exist variety of security mechanisms to prevent unauthorized access by unauthorized\nuser by the cloud administration, but there is no security provision to prevent unauthorized\naccess by the cloud administrators to the client data on the cloud computing. In this paper, we\ndemonstrate how steganography, which is a secrecy method to hide information, can be used to\nenhance the security and privacy of data (images) maintained on the cloud by mobile applications.\nOur proposed model works with a key, which is embedded in the image along with the data, to\nprovide an additional layer of security, namely, confidentiality of data. The practicality of the\nproposed method is represented via a simple case study.
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