Poster Abstract: Secure Data Sharing by Means of Fragmentation, Encryption, and Dispersion

Outsourcing data to the cloud raise several security challenges. Among others, a user may fear that their data could be exposed during a data breach, misused by the storage provider, or acquired by an attacker observing communication channels. In this poster abstract, we introduce a conceptual multi-cloud architecture reinforcing the confidentiality of the information sharing. Not only it does protect against untrusted storage providers but also is a secure alternative to direct data sharing between users. Moreover, it simplifies the access revocation procedure when the data is shared between multiple users.