This replaces the current 3072 bit RSA certificates with 384 bit ECDSA certificates. The advantage is these certificates are smaller and essentially instantaneous to generate. According to RFC4492 (ECC Cipher Suites for TLS), Table 1: Comparable Key Sizes, ECC has comparable strength to 3072 bit RSA at 283 bits - so we exceed that. There is no compatibility issue with existing Syncthing code - this is verified by the integration test ("h2" instance has the new certificate). There are browsers out there that don't understand ECC certificates yet, although I think they're dying out. In the meantime, I've retained the RSA code for the HTTPS certificate, but pulled it down to 2048 bits. I don't think a higher security level there is motivated, is this matches current industry standard for HTTPS certificates.
Syncthing
This is the Syncthing project which pursues the following goals:
-
Define a protocol for synchronization of a folder between a number of collaborating devices. This protocol should be well defined, unambiguous, easily understood, free to use, efficient, secure and language neutral. This is called the Block Exchange Protocol.
-
Provide the reference implementation to demonstrate the usability of said protocol. This is the
syncthing
utility. We hope that alternative, compatible implementations of the protocol will arise.
The two are evolving together; the protocol is not to be considered stable until Syncthing 1.0 is released, at which point it is locked down for incompatible changes.
Getting Started
Take a look at the getting started guide.
There are a few examples for keeping Syncthing running in the background on your system in the etc directory.
There is an IRC channel, #syncthing
on Freenode, for talking directly
to developers and users.
Building
Building Syncthing from source is easy, and there's a guide. that describes it for both Unix and Windows systems.
Signed Releases
As of v0.10.15 and onwards, git tags and release binaries are GPG signed with the key D26E6ED000654A3E (see https://syncthing.net/security.html). For release binaries, MD5 and SHA1 checksums are calculated and signed, available in the md5sum.txt.asc and sha1sum.txt.asc files.
Documentation
Please see the Syncthing documentation site.
All code is licensed under the MPLv2 License.