Nowadays, online social networks are on the boom. Everyday application developers come up with new social networking site. One of the examples is Blackberry Messenger, which was recently developed. Since the count of the users of social networks is increasing drastically, storage of such huge amount of data is difficult to accomplish. As a solution, Cloud provides a platform to store this tiny amount of data. However, the issues in securing the data and privacy of users in cloud-based social networks persist. Users are unaware of these issues. They share various pictures, videos and personal data on the networking site which prevail even after deletion. Hence, security of the data stored in the cloud is one of the major issues in cloud-based social networks. In this paper, we propose a framework for secure storing of data on the cloud-based social networks. The framework encrypts the data before storing it in the cloud, and the data is decrypted only with the private key of the user, making the data secure in the cloud. The proxy re-encryption scheme is used to re-encrypt the data to make it more secure. © 2016, International Journal of Pharmacy and Technology. All rights reserved.