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Computing Miscellaneous in Computing . 2 years ago
Signal is a cross-platform centralized encrypted instant messaging service developed by the non-profit Signal Technology Foundation and Signal Messenger LLC. Users can send one-to-one and group messages, which can include files, voice notes, images and videos. It can also be used to make one-to-one and group voice and video calls, and the Android version can optionally function as an SMS app.
Signal uses standard cellular telephone numbers as identifiers and secures all communications to other Signal users with end-to-end encryption. The apps include mechanisms by which users can independently verify the identity of their contacts and the integrity of the data channel.
Signal's software is free and open-source. Its mobile clients are published under the GPL-3.0-only license, while the desktop client and server are published under the AGPL-3.0-only license. The official Android app generally uses the proprietary Google Play Services (installed on most Android devices), though it is designed to still work without them installed. Signal also has an official client app for iOS and desktop apps for Windows, macOS and Linux (although registration requires an iOS or Android device).
The non-profit Signal Foundation was launched in February 2018 with initial funding of $50 million from Brian Acton. As of January 2021, Signal had more than 105 million total downloads, and the app had approximately 40 million monthly active users. Signal has been installed on more than 50 million Android devices.
Posted on 26 Apr 2022, this text provides information on Computing related to Miscellaneous in Computing. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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