HyperVault

Hypervault aims to become a personal cloud-storage replacement using p2p-technology and cryptography, inspired by projects TahoeLAFS, the DAT-project & cabal-chat.

Oh, and we also support multiple writers! :>

Usage

# Initialize a new vault-folder called `myvault` 
 
npx hypervault init myvault --repl
 
#<provide a secret passphrase and press enter> 
 
 
 
# Resume a previously initialized vault 
 
npx hypervault repl myvault
 
#<provide same passphrase as during init> 
 

Your folder should now become populated with files created by anyone who provided the same password during init&repl.

Communications are completely encrypted using derived keys and hypercore-protocol, meaning password never leaves your computer. At the moment of writing your files are not yet encrypted, so I wouldn't recommend setting up a dedicated replicator on an untrusted computer.

To share your folder with a trusted party you have two alternatives:

1. For read-only access; give them your hypervault public-key that was displayed during init. the other party can then use hypervault init <path> <pubkey> && hypervault repl <path> <pubkey> to start replicating.

2. For write access... You currently have to share your password with your friends.

We're making plans on improving the sharing mechanism to make the behaviour a bit more natural and without shared secrets.

For more info about design and implementation check out ARCHITECTURE.md TODO: haven't written it yet, but prepared a couple of pictures in docs/

Not ready for production Also, this the first release, DO NOT store anything sensistive or valuable in a hypervault yet as it has neither stabilized nor been audited. (Your data might and will get corrupted, but I suspect that we're already by definition more secure than dropbox/icloud)

Hypervault API

const pair = HyperVault.passwdPair('[e-mail]', 'supersecret')
const vault = new HyperVault(pair.publicKey, null, pair.secretKey)

new HyperVault(key, path, secret, opts)

Initializes a new vault in folder path using key for discovery. Changes you make to the drive will not be replicated if secret is omitted

opts can include:

{
  // Inspired by git, causes your vault to use a checked out tree.
  bare: Boolean, // default: false
  // random-access compatible storage
  storage: RandomAccess  // default: random-access-file
}

vault.indexView(callback)

Returns a hash representing the virtual file-tree

callback will receive arguments err and tree

vault.readdir(path, callback)

Not implemented yet, use indexView and filter non matching keys.

vault.replicate(opts)

Returns a replication stream, see hypercore.replicate() for compatible opts

vault.ready(callback)

callback is triggered when the vault has finished initializing or immediately if the vault is already initialized. callback takes no parameters.

vault.writeFile(path, data, opts, callback)

Writes content as a file in the virtual filesystem.

path Absolute path to file e.g. a value of /pictures/cat.jpg will be reflected as path/to/my/vault/pictures/cat.jpg.

data A string or a Buffer containing the contents.

opts not documenting yet, but will contain possibility to set executable flag for file mode, and maybe timestamps. (uid/gid/mode support dosen't make sense in a shared-environment)

callback will recieve argument err on unsuccessful write

vault.readFile(path, callback)

Reads a file from the vault.

path virtual path to file

callback will receive arguments err and data

vault.unlink(path, callback)

Deletes a file from the vault.

path virtual path to file

callback will receive argument err

vault.createReadStream(path, opts, callback)

Creates a readable Stream to file in vault

path virtual path to file

opts can include:

{
  // Wait until downloaded
  wait: Boolean, // default: false
}

callback will receive argument err and stream. err will be passed if file doesn't exist or if file is not yet available and opts.wait was set to false

vault.createWriteStream(path, opts, callback)

Creates a writable Stream to file in vault

path virtual path to file

opts same as for writeFile, check the source/ nothing usable yet.

callback will receive argument err and stream.

vault.exportFile(path, destination, opts, callback)

Exports file from vault to filesystem, also sets the timestamps time and mode as registered in vault.

path virtual path to file

destination physical path

opts see vault.readFile

callback will receive argument err

vault.importFile(path, source, callback)

Import file from filesystem to vault, also imports file's mode and timestamps.

path virtual path to file

source path to file to import

callback will receive argument err

vault.lstat(path, callback)

Fetches an the virtual filesystem entry for given path (compared to hyperdrive it does not support full node.js Stat compatibility)

path virtual path to file

callback recieves two arguments: err, stat

A note on directories In order to maintain some sort of simplicity, hypervault does not support creation or registration of empty folders. Folders are currently simulated via file-path but don't have their own entries. Feel free to contact me or open an issue if you really need it.

Current Status

Feature	Status
kappafs	not documented
metadrive	done
cli	alpha
swarm/discovery	done
folder mirroring/reflection	done
Storage Encryption	todo
FUSE support	todo
friend signature management	todo
Less hacky UI	todo

License

This project is release under GNU AGPLv3 license