Access to the data is performed through a front-end layer which distributes data on HTTP/HTTPS protocol.
As for access security to data stored on the platform, the architecture of distributed storage makes access impossible to unauthorized users.
With regards to data security during transmission, the HTTPS protocol can be used between the end point of the user and the public entry point compatible with S3. The authentication and the integrity of HTTP requests use the S3 algorithm for the REST interface.
Control of the accesses is made by the system in the back-end layer which is not connected to the public network, verifying the authenticity and identity of the user.
The cancellation of a file is performed by removing the mapping of such file on the distributed hash table: by doing so it will not be possible to recuperate the cancelled file, guaranteeing prevention of data theft, even after cancellation.