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Excerpts from:
Signal (software)
From Wikipedia, the free encyclopedia
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| Signal Timeline | |
|---|---|
| May 2010 | Moxie Marlinspike and Stuart Anderson (Whisper Systems) launch TextSecure and RedPhone on Android.[24] |
| Nov 2011 | Whisper Systems is acquired by Twitter,[25] “primarily so that Mr. Marlinspike could help the then-startup improve its security.”[26] |
| Dec 2011 – Jul 2012 | TextSecure and RedPhone are released as free and open-source software under the GPLv3 license.[27] |
| Jan 2013 | Moxie 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 2014 | OWS adds end-to-end encrypted group chat and instant messaging capabilities to TextSecure.[30] |
| Jul 2014 | OWS releases Signal as a RedPhone counterpart for iOS.[1] |
| Mar 2015 | OWS 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 2015 | RedPhone is merged into TextSecure on Android and the app is renamed as Signal.[33] |
| Dec 2015 | Signal Desktop is launched as a Chrome App.[34] |
| Oct 2017 | OWS announces the deprecation of their Chrome App and the release of a new Electron-based Signal Desktop.[35] |
| Mar 2017 | OWS transitions Signal’s calling system from RedPhone to WebRTC and adds the ability to make video calls with the mobile apps.[36][17] |
| Feb 2018 | Moxie 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 2020 | Signal adds support for iPads,[39] view-once images and videos, stickers, and reactions.[40] |
| Aug 2020 – Sep 2020 | Signal adds message requests[41] and one-to-one voice and video calling to Signal Desktop.[42][18] |
| Oct 2020 – Dec 2020 | Signal 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] |
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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.
https://en.wikipedia.org/wiki/Signal_(software)
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