Qasmat is a software solution for secure distributed cloud storage. It uses a Proactive Secret Sharing scheme to produces, given some data to protect, secret shares to distribute on various servers. This prevents single nodes of compromission: an eavesdropper that wants to learn your secret data would need to attack several storage servers.

The technical documentation of Qasmat, and instruction for installation can be found at https://veriqloud.github.io/

Qasmat is also quantum-ready. It can be deployed over a QKD network, resulting in even higher security guarantees, providing long-term security for data storage. Moreover, the data are contiunously re-encrypted, by updating and distributing new secret shares to the storage servers.