Bifrost: Secure, Scalable and Efficient File Sharing System Using Dual Deduplication. (arXiv:2201.10839v1 [cs.CR])

We consider the problem of sharing sensitive or valuable files across users
while partially relying on a common, untrusted third-party, e.g., a Cloud
Storage Provider (CSP). Although users can rely on a secure peer-to-peer (P2P)
channel for file sharing, this introduces potential delay on the data transfer
and requires the sender to remain active and connected while the transfer
process occurs. Instead of using the P2P channel for the entire file, users can
upload information about the file on a …

file sharing sharing system