Signal (software)


Excerpts from:

Signal (software)

From Wikipedia, the free encyclopedia


Signal Timeline
May 2010Moxie Marlinspike and Stuart Anderson (Whisper Systems) launch TextSecure and RedPhone on Android.[24]
Nov 2011Whisper Systems is acquired by Twitter,[25] “primarily so that Mr. Marlinspike could help the then-startup improve its security.”[26]
Dec 2011 – Jul 2012TextSecure and RedPhone are released as free and open-source software under the GPLv3 license.[27]
Jan 2013Moxie Marlinspike leaves Twitter and founds Open Whisper Systems (OWS) as a collaborative open source project for the continued development of TextSecure and RedPhone.[28][29]
Feb 2014OWS adds end-to-end encrypted group chat and instant messaging capabilities to TextSecure.[30]
Jul 2014OWS releases Signal as a RedPhone counterpart for iOS.[1]
Mar 2015OWS discontinues support for encrypted SMS/MMS messaging in TextSecure, while retaining its encrypted IM capabilities.[31] At the same time, OWS adds encrypted IM to Signal on iOS.[32]
Nov 2015RedPhone is merged into TextSecure on Android and the app is renamed as Signal.[33]
Dec 2015Signal Desktop is launched as a Chrome App.[34]
Oct 2017OWS announces the deprecation of their Chrome App and the release of a new Electron-based Signal Desktop.[35]
Mar 2017OWS transitions Signal’s calling system from RedPhone to WebRTC and adds the ability to make video calls with the mobile apps.[36][17]
Feb 2018Moxie Marlinspike and Brian Acton launch the Signal Foundation with an initial $50 million in funding from Acton, who had left WhatsApp’s parent company Facebook in September 2017.[37][38]
Nov 2019 – Feb 2020Signal adds support for iPads,[39] view-once images and videos, stickers, and reactions.[40]
Aug 2020 – Sep 2020Signal adds message requests[41] and one-to-one voice and video calling to Signal Desktop.[42][18]
Oct 2020 – Dec 2020Signal starts transitioning to a new encrypted group chat system with support for @mentions, group admins, and more granular permissions.[43] It also adds support for encrypted group calling.[43]


Developers and funding[edit]

Main articles: Signal Messenger and Signal Foundation

The development of Signal and its predecessors at Open Whisper Systems was funded by a combination of consulting contracts, donations and grants.[172] The Freedom of the Press Foundation acted as Signal’s fiscal sponsor.[37][173][174] Between 2013 and 2016, the project received grants from the Knight Foundation,[175] the Shuttleworth Foundation,[176] and almost $3 million from the US government–sponsored Open Technology Fund.[177] Signal is now developed by Signal Messenger LLC, a software company founded by Moxie Marlinspike and Brian Acton in 2018, which is wholly owned by a tax-exempt nonprofit corporation called the Signal Technology Foundation, also created by them in 2018. The Foundation was funded with an initial loan of $50 million from Acton, “to support, accelerate, and broaden Signal’s mission of making private communication accessible and ubiquitous”.[37][21][178] All of the organization’s products are published as free and open-source software.



This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s