Identity-Based Secure Distributed Data Storage with Dual Encryption

Distributed data storage can be Secured and shift the burden of maintaining a huge number of files from the Data owners database to proxy servers. The Proxy servers or external data storage servers can encrypt the original files without knowing the actual contents of the original files. The dual encryption on the original data is done to provide confidentiality and integrity of data which is out sourced to receiver, for this IBSDDSWDE (Identity-Based Secure Distributed Data Storage with Dual Encryption) was proposed. The schemes can capture the following properties for Identity-Based Secure Distributed Data Storage scheme With Dual Encryption : (i) The Data Owner or file owner will decide the access permission for authenticated user independently without the help of the PKG (private key generator) from the receiver side; (ii) Only one file can be accessed at a time , instead of all files of the File owner; (iii) This scheme is secure against the collusion attacks, Even if the receiver is compromised with the proxy servers, receiver cannot obtain the owner’s secret key. The 1st scheme is only secured on the chosen plaintext attacks (CPA), the 2nd scheme is secured on the chosen cipher text attacks (CCA). This is the first IBSDDSWDE schemes where access permissions and authentication are made by the owner to the exact original file in proxy server and collusion attacks can be protected.