Tushar A. Rane, Shrishail T. Patil, Anita H. Khade
Abstract: Cloud Computing emerged as the next-generation architecture of IT Enterprise. As high speed network or Internet access become available to users, so user can easily use many services through Internet from anywhere at any time. Cloud storage system as we called third party provides long term storage service over the internet. It migrate all application software as well as databases to the centralized data centers, which creates challenges in management of the data and services. This paradigm causes many new security challenges during data storage and data forwarding. Storing and movement of data in cloud system make a serious problem about data confidentiality. General encryption scheme protect data confidentiality and also faces some limitations during functioning of the storage system as well as data forwarding. For constructing secure cloud storage with safe data forwarding, here we use proxy cryptosystem and along with this propose conditional proxy re-encryption. The conditional proxy re-encryption used for secure encryption and secure data forwarding.
Keywords: Cloud Computing, Proxy Re-Encryption, Conditional Proxy Re-encryption, Security