SyncDS: A digital safe based file synchronization approach
Mayssa Jemel, Mounira Msahli, Ahmed Serhrouchni · 2016
Within the diversity of existing Cloud storage solutions, meeting the requirements of user mobility and devices' variety is crucial. First, data should be synchronized automatically and continuously when the user moves from one equipment to another. Second, the service should offer to the owner the possibility to share some of his data with specific users. Working on the probative value archiving of sensitive documents, we propose an architecture and a protocol that ensure the data synchronization with high security and minimal resource consumption. We focus mainly on the security requirements when data are stored locally, synchronized and shared. In fact, the concepts of Digital Safe and timely-based file sharing are adopted. As a proof of conception, a formal security validation is provided to prove the safety of the proposed protocol, and an implementation of file sharing is performed on the Ciphertext Policy Attribute Based Encryption (CP-ABE) toolkit.