stasis

A stasis /ˈsteɪsɪs/ or stasis field, in science fiction, is a confined area of space in which time has been stopped or the contents have been rendered motionless.

stasis is a backup and recovery system with an emphasis on security and privacy; no personal information is collected, no unencrypted data leaves a client device and all encryption keys are fully in the control of their owner.

Linux/macOS Client CLI

Linux/macOS Client UI

Android Client

Why?

• Trust Issues - Do you trust your backup or infrastructure/storage provider with your unencrypted data?
• Multi-Device - How many backup providers would you need to cover all types of devices you own?
• Self-Hosted - What if your backup provider goes out of business?

Goals

• Recover user data from total failure or device loss
• Replicate data to local and remote/cloud storage
• Encrypt data before it leaves a device
• Manage all device backups from a single service

Along with provision, the goal is to be able to grab a blank/off-the-shelf device and recover the original system in an automated and repeatable way.

Features

• Client-only Encryption - encryption and decryption is done by client applications; the server never deals with unencrypted data or metadata
• Device-only Secrets - user credentials and device secrets do not leave the device on which they were entered/generated
• Default Redundancy - copies of a device's encrypted data are sent to multiple nodes by default (local and remote)
• Hybrid Data Storage - various storage backends (Slick, in-memory, file-based) are supported and used
• Secrets Escrow - enables storing encrypted device secrets on the server to simplify recovering of a lost or replaced device
• Serverless Mode - (TODO) enables creating backups and recovering from them without the presence of a server

Installation

Server

Docker images for server, server-ui, identity and identity-ui can be found under Packages.

The required configuration can be downloaded and prepared by running the installer:

$ curl -s "https://raw.githubusercontent.com/sndnv/stasis/master/deployment/production/scripts/server_prepare_deployment.sh" | bash

See deployment/production for more information on how to set up and deploy the services.

Clients

Client binaries for Linux, macOS and Android can be found for each release.

Linux and macOS

The provided installer can be used:

$ curl -s "https://raw.githubusercontent.com/sndnv/stasis/master/deployment/production/scripts/client_install.sh" | bash

Removing

The Linux and macOS clients can be uninstalled using:

$ curl -s "https://raw.githubusercontent.com/sndnv/stasis/master/deployment/production/scripts/client_uninstall.sh" | bash

Updating

The Linux and macOS clients can be updated by uninstalling the current version and installing the latest one:

$ curl -s "https://raw.githubusercontent.com/sndnv/stasis/master/deployment/production/scripts/client_uninstall.sh" | bash
$ curl -s "https://raw.githubusercontent.com/sndnv/stasis/master/deployment/production/scripts/client_install.sh" | bash

Secrets, configuration, logs and operation state are NOT removed when uninstalling the client!

Android

On Android, installing and updating is done by simply downloading the apk file and running it.

Testing

Images and binaries for testing/development purposes can be created locally using the existing dev tools.

Development

Refer to the DEVELOPMENT.md file for more details.

Contributing

Contributions are always welcome!

Refer to the CONTRIBUTING.md file for more details.

Versioning

We use SemVer for versioning.

License

This project is licensed under the Apache License, Version 2.0 - see the LICENSE file for details

Copyright 2018 https://github.com/sndnv

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.