Secure and efficient data forwarding in untrusted cloud environment

Nowadays, cloud storage services increased the popular for data storage in the cloud and retrieve from any location without any time limitations. In recent days one of the most important demands required in cloud is secured data transmission in un-trusted cloud applications. Due to user’s data security, the encrypted data is stored in cloud server to protect from unauthorized users. Existing methods offer either data transformation efficiency or security. They fail to maintain end to end security during massive transformations. However, existing methods are not capable of solving the key complexity and avoiding key secrecy disclosure. The main objective of this study is to design and develop a secured efficient data forwarding algorithm for increasing the security level. It is developed specially for untrusted cloud environment. In order to provide a better solution, an efficient framework is proposed for forwarding and retrieving the content in the untrusted cloud environment. Proposed system implements dual privacy for reliable data transmission in an untrusted cloud environment. It develops efficient secret key exposure to minimize the key complexity during data transmission. SEDFA is used for one to many communications as a public key used for encryption and decryption. This scheme provides reliable data transmission between the data owner and end user in untrusted Cloud Environment. Proposed mechanisms minimized the data encryption time, decryption time and improved the communication cost. Based on experimental results, SEDFA reduces the communication cost 5%, encryption time (ET), 2 s, decryption time (DT) 0.5 s.