ZeroTier protocol design and core network virtualization engine, ZeroTier One service, React web UI, packaging for most platforms, kitchen sink...
Adam Ierymenko / adam.ierymenko@zerotier.com
Java JNI Interface to enable Android application development, and Android app itself (code for that is elsewhere)
Grant Limberg / glimberg@gmail.com
A number of fixes and improvements to the new controller, other stuff.
Kees Bos / https://github.com/keesbos
Debugging and testing, OpenWRT support fixes.
Moritz Warning / moritzwarning@web.de
Several others made smaller contributions, which GitHub tracks here:
https://github.com/zerotier/ZeroTierOne/graphs/contributors
LZ4 compression algorithm by Yann Collet (BSD license)
http://code.google.com/p/lz4/
http-parser by many authors (MIT license)
https://github.com/joyent/http-parser
json-parser by James McLaughlin (BSD license)
https://github.com/udp/json-parser
TunTapOSX by Mattias Nissler (BSD license)
http://tuntaposx.sourceforge.net
tap-windows and tap-windows6 by the OpenVPN project (GPL)
https://github.com/OpenVPN/tap-windows
https://github.com/OpenVPN/tap-windows6
Salsa20 stream cipher, Curve25519 elliptic curve cipher, Ed25519
digital signature algorithm, and Poly1305 MAC algorithm, all by
Daniel J. Bernstein (public domain)
http://cr.yp.to/
MiniUPNPC by Thomas Bernard [BSD] http://miniupnp.free.fr