displayn/clearskies

Open source btsync clone

ClearSkies

ClearSkies is a sync program similar to DropBox, except it does not require a monthly fee. Instead, you set up shares between two or more computers and the sharing happens amongst them directly.

ClearSkies is inspired by BitTorrent Sync, but it has an open protocol that can be audited for security.

This repository contains the protocol documentation as well as an in-the-works reference implementation. The reference implementation is open source and free software.

Status

The draft protocol is written and ready to be implemented. The reference implementation is not yet functional.

I am writing about my progress at my blog.

Core Protocol Features

• Simple-to-share access codes
• Read-write sync
• Read-only sharing
• Encrypted backup sharing to an untrusted peer
• Encrypted connections
• Shallow copy (do not sync certain files from peer)
• Subtree copy (only sync certain directories from peer)
• Streaming support

Defined Protocol Extensions

• Rsync file transfer
• Gzip compression

Future Extensions

• Media streaming (audio and video)
• Photo thumbnails