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Draft:Delta Chat

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  • Comment: This article still lacks sources to establish notability of this software. There is one good source, and one other source that appears to be a paid promotion. Please add more sources. OnlyNanotalk 13:30, 2 July 2024 (UTC)
  • Comment: This software does not have good sourcing to prove it's notability. There are zero good sources that have a good reputation. OnlyNanotalk 22:12, 1 July 2024 (UTC)
Delta Chat
Developer(s)Merlinux..[1]
Initial release2017(beta)[2], 2019[3]
PlatformWindows, macOS, Linux, Android, iOS
TypeEncrypted instant messaging
LicenseGPLv3
Websitedelta.chat

Delta Chat is a decentralized and encrypted messaging app, available for mobile and desktop platforms.[4][5][6][7][8][9][10]

Delta Chat looks like WhatsApp,[10] Telegram and other messaging apps but internally it is an encrypted e-mail client.[4][5][6][10] Users can signup anonymously to a variety of interoperable chatmail servers[11] which are minimal e-mail servers optimized for fast and secure operations.[12] It is also possible to use classic e-mail servers and an existing e-mail account (such as Gmail) in which case Delta Chat acts as a normal e-mail app.[4][12][5][6][7]

Delta Chat supports direct(one-on-one) chats as well as group chats.[6] End-to-end encryption[13] with contacts and group chats is automatically established via Autocrypt[14][9][5][6][15] which in turn uses a subset of the OpenPGP standard.

Delta Chat also supports Webxdc[16] (in-chat mini-apps)[15][17][18] allowing users to play mini-games or use collaborative tools with their chat partners.[19][20] Webxdc was originally developed by Delta Chat[21] and is being adopted by other messengers, such as Cheogram[21][22] and Monocles[23]

Android version of Delta Chat originated by Bjoern Petersen[4] in 2016[24][25] as a fork of Telegram[26][27][28] and in 2019 switched to being a fork of Signal[28][27].

In 2021 Delta Chat reached over 100 000 downloads on Google Play.[29]

Reception

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The popular German media conglomerate Heise published two articles about Delta Chat, the first in 2019[30] and the second in 2023[31]

In 2019 the regional newspaper HNA published an article about Delta Chat.[32]

As of 2024, the Delta Chat project underwent four independent security audits[19] and one independent security analysis[33].[34]

See also

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References

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  1. ^ "Merlinux". Archived from the original on 6 May 2024. Retrieved 1 July 2024.
  2. ^ "Delta Chat v0.9.0 introducing PGP". Retrieved 1 July 2024.
  3. ^ "Delta Chat 1.0 with new features". Retrieved 1 July 2024.
  4. ^ a b c d Ermoshina, Ksenia; Musiani, Francesca; DeNardis, Laura (2022). Concealing for freedom: the making of encryption, secure messaging and digital liberties (1st ed.). Manchester: Mattering Press (published 2022-04-19). pp. 171–173. doi:10.28938/9781912729227. ISBN 978-1-912729-22-7.
  5. ^ a b c d e Lein, Adam Z. (13 February 2021). "10 Ways Delta Chat is Better than WhatsApp, Signal, and Telegram". Pocketnow. Archived from the original on 2021-02-13. Retrieved 23 July 2024.
  6. ^ a b c d e f Borisov, Bobby (28 August 2021). "Delta Chat is an Open Source Messenger App That Uses Email". Linuxiac. Archived from the original on 2021-08-28. Retrieved 23 July 2024.
  7. ^ a b Smithee, Alan. "Software Privacy Day: Use Delta Chat, an open source chat tool | Opensource.com". opensource.com. Archived from the original on 2022-02-01.
  8. ^ Lekander, Alex (14 June 2024). "Delta Chat Rejects Russian Authorities' Request for User Data". RestorePrivacy. Retrieved 23 July 2024.
  9. ^ a b c "Projects we support – Delta Chat". Open Technology Fund. Archived from the original on 2024-02-28. Retrieved 2024-07-25.
  10. ^ a b c Pöting, Inga (2021-01-16). "Tschüss, WhatsApp!" [Bye, WhatsApp!]. Zeit Online (in German). ISSN 0044-2070. Archived from the original on 2023-04-20. Retrieved 2024-07-25.
  11. ^ "Chatmail servers". delta.chat. Retrieved 1 July 2024.
  12. ^ a b "Projects we support – Secure Chat-Mail with Delta Chat". Open Technology Fund. Archived from the original on 2024-02-27. Retrieved 2024-07-25.
  13. ^ "Encryption and security". delta.chat. Retrieved 1 July 2024.
  14. ^ a b "Autocrypt-capable MUAs level 1 implementation status". docs.autocrypt.org. Archived from the original on 2024-06-27. Retrieved 23 July 2024.
  15. ^ a b "DeltaChat/WebXDC". nlnet.nl. Archived from the original on 2023-01-29. Retrieved 2024-07-25.
  16. ^ "Webxdc". Retrieved 1 July 2024.
  17. ^ "webxdc PUSH". nlnet.nl. Archived from the original on 2024-03-05. Retrieved 2024-07-25.
  18. ^ "Webxdc evolve". nlnet.nl. Archived from the original on 2024-05-20. Retrieved 2024-07-25.
  19. ^ a b "Pentest- & Review-Report Delta Chat Webxdc 02.-03.2023" (PDF). Archived (PDF) from the original on 2024-06-03. Retrieved 23 July 2024.
  20. ^ B. Holguin, Mauricio (2023-08-14). "Delta Chat releases new update with xStore for platform-independent apps and serverless editor app". AlternativeTo. Archived from the original on 2023-09-12. Retrieved 2024-07-26.
  21. ^ a b "WebXDC XMPP". nlnet.nl. Archived from the original on 2024-05-31. Retrieved 2024-07-25.
  22. ^ Weber, Stephen Paul (2024-06-05). "XEP-xxxx: WebXDC". xmpp.org. Archived from the original on 2024-07-15. Retrieved 2024-07-25.
  23. ^ "Monocles v1.7 Release - Stickers, Threads, Reactions". Codeberg.org. 2023-05-31. Archived from the original on 2024-07-25. Retrieved 2024-07-25.
  24. ^ "deltachat/deltachat-android-old - Initial commit". GitHub. 2016-07-03. Archived from the original on 2024-07-25. Retrieved 2024-07-25.
  25. ^ "deltachat/deltachat-android: Android frontend for the project that aims to create an e-mail compatible messenger". GitHub. 2017-07-09. Archived from the original on 2017-07-09. Retrieved 2017-07-09.
  26. ^ "Upgrade from Telegram 3.8.1 (787) to 3.10.1-(821). · deltachat/deltachat-android-old@ca827fa". GitHub. 2016-09-09. Retrieved 2024-07-25.
  27. ^ a b "Delta Chat: Big update on Delta.chat developments". Delta Chat Blog. 2018-09-28. Archived from the original on 2018-11-07. Retrieved 2024-07-25.
  28. ^ a b "DeltaChat multi-platform releases rolling ..." Delta Chat Blog. 2019-01-27. Archived from the original on 2019-01-27. Retrieved 2024-07-25.
  29. ^ "Delta Chat - Apps". play.google.com. Archived from the original on 2021-08-13. Retrieved 2021-08-13.
  30. ^ "Chat over IMAP: Den Mailserver um Chat-Fähigkeiten erweitern". Heise online (in German). July 2019. Archived from the original on 1 July 2024. Retrieved 1 July 2024.
  31. ^ "Per E-Mail chatten: Delta Chat als Messenger und Mailsoftware nutzen". Heise online (in German). 21 November 2023. Archived from the original on 3 Jan 2024. Retrieved 1 July 2024.
  32. ^ "Der Messenger, der E-Mail nutzt". HNA (in German). 20 August 2019. Archived from the original on 11 Jun 2024. Retrieved 1 July 2024.
  33. ^ Song, Yuanming; Mareková, Lenka; Paterson, Kenneth G. (2024). "Cryptographic Analysis of Delta Chat". Cryptology ePrint Archive. Retrieved 23 July 2024.
  34. ^ "Was Delta Chat independently audited for security vulnerabilities?". delta.chat. Retrieved 1 July 2024.
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Wikimedia Commons has media related to Delta Chat.

Category:Communication software Category:Cryptographic software Category:End-to-end encryption Category:Cross-platform software Category:Free and open-source Android software Category:Free instant messaging clients Category:Free email software Category:Email client software for Linux Category:macOS email clients Category:Windows email clients Category:IOS software Category:Linux software Category:macOS software Category:Mobile instant messaging clients Category:Windows software

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