An open-source, distributed cloud storage solution.
This is just a way for me to try Rust by implementing Storj's whitepaper.
Nuvola is a distributed network of nodes that store fragments - pieces of encrypted files. Each node uses a distributed hash table (similar to Kademlia) to locate fragments of a file that it had previously uploaded to the network. Files are encrypted and split into fragments before being uploaded. By using erasure codes, nodes avoid long-tail responses during download operations and provide redundancy: this guarantees better durability in case of non-responsive nodes and is a more efficient option than replication as it requires less bandwidth.
A Nuvola's node is composed of the following logical components:
Fragments are stored directly on the file system, along with some metadata that allows each fragment to be uniquely identified. Ideally this would be plug-and-play: a user should be able to specify what kind of storage solution to use.
A local db saves information on fragments that have been uploaded to it as well as fragments that have been uploaded by the user.
Regular asymmetric RSA solution to encrypt uploaded files and decrypt downloaded fragments. Again, ideally it would be up to the user's choice.
Nuvola relies on a Kademlia-like network to uniquely identify nodes and perform O(log(n)) lookups.
This repo follows a workspace-based approach for its structure in order to better separate the actual library from the executable.