ZeroTier

ZeroTier, Inc. is a software company with a freemium business model based in Irvine, California. ZeroTier provides proprietary software, SDKs[1] and commercial products and services to create and manage virtual software-defined networks. The company's flagship end-user product ZeroTier One[2] is a client application that enables devices such as PCs, phones, servers and embedded devices to securely connect to peer-to-peer virtual networks.[3][4][5]

ZeroTier One
Developer(s)ZeroTier, Inc.
Stable release
1.12.1[6] / August 25, 2023 (2023-08-25)
Operating systemMicrosoft Windows, macOS, Linux, Linux on ARM
TypeSD-WAN, P2P, VPN
LicenseBusiness Source License (Free for personal use. Enterprise pricing available); formerly GPLv3
Websitehttps://www.zerotier.com
ZeroTier, Inc
TypePrivate
Industry
Founded2011 (2011)
FounderAdam Ierymenko
Headquarters
Irvine, California
,
United States
Area served
Worldwide
Key people
Adam Ierymenko (CEO)
Products
  • ZeroTier One
  • Central
  • libzt (SDK)
  • LF (pronounced "aleph")
Websitezerotier.com

Software tools

ZeroTier markets proprietary tools, which are licensed under a Business Source License 1.1,[7] intended to support the development and deployment of virtual data centers:

In 2021, the product line consists of the following tools:

  • ZeroTier One, first released in 2014,[8] is a portable client application that provides connectivity to public or private virtual networks.
  • Central, a web-based UI portal for managing virtual networks.
  • libzt (SDK), a linkable library that provides the functionality of ZeroTier One but that can be embedded in applications or services.
  • LF (pronounced "aleph"), a fully decentralized fully replicated key/value store.

Client

The ZeroTier client is used to connect to virtual networks previously created in the ZeroTier Central web-based UI. Endpoint connections are peer-to-peer and end-to-end encrypted. STUN and hole punching are used to establish direct connections between peers behind NAT. Direct connection route discovery is made with the help of a global network of root servers via a mechanism similar to ICE in WebRTC.

Controller

Virtual networks are created and managed using a ZeroTier controller. Management is done using an API, proprietary web-based UI (ZeroTier Central), open-source web-based[9][10] or CLI[11] alternative. Using root servers other than those hosted by ZeroTier Inc. is impeded by the software's license.

Security

The following considerations apply to ZeroTier's use as an SDWAN or VPN application:

  • Asymmetric public key encryption is Curve25519, a 256-bit elliptic curve variant.
  • All traffic is encrypted end to end on OSI layer 1 using 256-bit Salsa20 and authenticated using the Poly1305 message authentication (MAC) algorithm.[12] MAC is computed after encryption (encrypt-then-MAC) and the cipher/MAC composition used is identical to the NaCl reference implementation.[13]

Packages

ZeroTier One is available on multiple platforms and in multiple forms:

Similar projects

See also

References
  1. "ZeroTier, Inc". GitHub. Retrieved 2023-02-02.
  2. ZeroTier One
  3. ""ZeroTier" that allows you to connect Windows, Mac, Linux, Android, iOS with VPN without difficult setting". GIGAZINE.net.
  4. "Peer-to-peer-based VPN alternatives". Linux-Magazine.com.
  5. Goethals, Tom; Kerkhove, Dwight; Volckaert, Bruno; De Turck, Filip (October 21–25, 2019). Scalability evaluation of VPN technologies for secure container networking (PDF). 15th International Conference on Network and Service Management, CNSM 2019. Halifax, Canada.
  6. "Release VERSION 1.12.1: · zerotier/ZeroTierOne". GitHub.
  7. "LICENSE.txt". GitHub. Retrieved 2021-01-01.
  8. "Release VERSION 0.9.2: · zerotier/ZeroTierOne". GitHub.
  9. pandada8 (2021-08-18), zt-panel, retrieved 2023-02-02
  10. key-networks (2023-02-02), ztncui - ZeroTier network controller user interface, retrieved 2023-02-02
  11. ZeroTier Network Controller in Python
  12. ZeroTier Cryptography
  13. ZeroTier Manual: Cryptography
  14. ZeroTier Docker container page
  15. IoTStack page
  16. ZeroTier One Google Play Store page
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