A new framework for secure sharing data on cloud-based social networks

In this paper, we propose a new framework for secure sharing data on cloud-based social networks. The framework satisfies the security based on the combination of symmetric and asymmetric cryptosystems. In addition, dynamic one-time used symmetric cryptographic keys and proxy re-encryption schemes are used in this framework to improve the security of cryptographic systems. By using this framework, the data is being shared between users in much more secure way.