Energy-efficient secure distributed storage in mobile cloud computing

In the mobile cloud computing, one of the main concerns is to preserve the confidentiality and integrity of the outsourced data. Trust relations always have been one of the key factors in designing a security architecture for outsourcing data in mobile cloud computing in order to offload some of the computation overhead like pre-encryptions to a third trusted party which in practical environment it is not a wise idea, especially when we have a security sensitive data. In this paper, we present a method to improve Rabin's IDA to further be used for secure dispersal of information by employing a lightweight energy-efficient pre-processing phase before application of the IDA. In the pre-processing phase, we produce a cipher key using a selfie picture taken by the user. Further we employ a method of key management such that in case of missing one file, there would be no way of reconstructing the file while relieving the user from key management complexities. Due to our method's low-energy consuming nature, it can be confidently used in mobile cloud computing.