An improved approach for enhancing public cloud data security through steganographic technique
M. Mohis, Devi Priya V S · 2016
Cloud is simply a network of computers. It refers to a network of computers owned by one person or company, where other people or companies can store their data. In personal machines, every relevant data is stored in a single physical storage device. Cloud storage refers to a virtual storage area that can span across many different physical storage devices. When cloud storage is used, some of the files would be stored in various physical servers located at far away countries. Since most users do not know where their physical files are, using cloud storage can be thought of as a vague, untouchable thing like a cloud itself. One of the major issues faced by user while dealing with cloud storage is security of the data. Many of encryption schemes mainly attribute based and other hierarchical based are implemented to provide data confidentiality and access control to cloud storage where they are failed to address the security issues inside cloud. The proposed system includes a Mediated certificateless encryption which is an advanced encryption scheme that offers more security to the cloud data sharing and a steganographic method which enhances the security of data inside the cloud. Steganography approach reduces the falsification of unauthorized users. By implementing mediated certificateless encryption with steganography shows the performance of the system is better in comparison with other schemes and also embedding the secret text inside the noise using Least Significant Bit image embedding technique which protects the data from the attackers.