RedPhone

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RedPhone

RedPhone icon 2014.svg
Basic data

developer Open Whisper Systems
Publishing year 2010
Current  version Android 1.0.3
September 27, 2014
operating system Android
programming language C.
category Encrypted telephony
License GPLv3 (client)
proprietary (server)
German speaking Yes
whispersystems.org

RedPhone was free software for the Android platform for encrypted calls. It uses ZRTP to establish an end-to-end encrypted VoIP connection for calls and its own protocol with a central server for switching. RedPhone is developed by Open Whisper Systems and released under the GPLv3 license. The app was replaced in November 2015 by the Signal app , which combines TextSecure with RedPhone.

technical basics

Encrypted RedPhone connections require the use of the RedPhone app or compatible software on both sides. Encrypted phone calls can be made with devices running the Apple iOS operating system if the Signal software is installed there. All calls are made via a connected WLAN or a mobile data connection.

In November 2015, Open Whisper Systems combined RedPhone with the instant messenger program TextSecure into one application, Signal .

Distribution and importance

RedPhone and TextSecure played a role in protesting communications during the rise of the Arab Spring . In the opening speech at SXSW 2014 , NSA investigator Edward Snowden praised Open Whisper Systems' applications for their ease of use.

reception

The Forbes Magazine described RedPhone as "one of the five essential tools for privacy".

Web links

Individual evidence

  1. ↑ https://www.heise.de/security/meldung/Android-Software-zur-Verschluesselung-von-Telefonaten-und-SMS-1009496.html
  2. ↑ The RedPhone Open Source Project on Open Hub: Languages Page . In: Open Hub . (accessed on September 26, 2018).
  3. ↑ - ( Memento of the original from September 8, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / github.com
  4. ↑ https://github.com/WhisperSystems/RedPhone/issues/63  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / github.com  
  5. ^ Open Whisper Systems: RedPhone . Archived from the original on September 5, 2015. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved January 14, 2015. @1@ 2Template: Webachiv / IABot / github.com
  6. ^ Andy Greenberg: Your iPhone Can Finally Make Free, Encrypted Calls . Wired. 29th July 2014.
  7. ^ Jon Evans: Talk Private To Me: Free, Worldwide, Encrypted Voice Calls With Signal For iPhone . In: TechCrunch . AOL. 29th July 2014.
  8. ^ Robert Lemos: An App for Dissidents . MIT Technology Review. February 15, 2011.
  9. ↑ Max Eddy: Snowden to SXSW: Here's How To Keep The NSA Out Of Your Stuff . PC Magazine: SecurityWatch. March 11, 2014. Retrieved March 16, 2014.
  10. ↑ Hanno Böck: Snowden recommends Textsecure and Redphone . Golem.de. March 11, 2014.
  11. ↑ Forbes of July 19, 2012: 5 Essential Privacy Tools For The Next Crypto War