Silent Circle Instant Messaging Protocol Explained
The Silent Circle Instant Message Protocol (SCIMP) was an encryption scheme that was developed by Vincent Moscaritolo of Silent Circle. It enabled private conversation over instant message transports such as XMPP (Jabber).[1]
SCIMP provided encryption, perfect forward secrecy and message authentication.[2] It also handled negotiating the shared secret keys.
History
Silent Circle used SCIMP in their encrypted instant messaging application called Silent Text. Silent Text was discontinued on September 28, 2015, when its features were merged into Silent Circle's encrypted voice calling application called Silent Phone.[3] At the same time, Silent Circle transitioned to using a protocol that uses the Double Ratchet Algorithm instead of SCIMP.[3] [4]
See also
Notes and References
- Web site: Silent Circle's SCIMP page. https://web.archive.org/web/20150904164326/https://silentcircle.com/products-and-solutions/technology/scimp/. 4 September 2015. 13 December 2015.
- Web site: Silent Circle Instant Messaging Protocol Protocol Specification. https://web.archive.org/web/20150402122917/https://silentcircle.com/sites/default/themes/silentcircle/assets/downloads/SCIMP_paper.pdf. 2 April 2015. Moscaritolo, Vinnie . Belvin, Gary . Zimmermann, Phil . Silent Circle. 5 December 2012. 31 October 2013.
- Web site: What is Silent Phone?. https://web.archive.org/web/20160304091202/https://support.silentcircle.com/customer/en/portal/articles/2118686-what-is-silent-phone-. 4 March 2016. Support.silentcircle.com. Silent Circle. 8 March 2016. 17 September 2015.
- Web site: Armasu. Lucian. TextSecure, RedPhone Private Communications Apps Now Combined Into 'Signal' App. Tom's Hardware. Purch Group, Inc.. 8 March 2016. 3 November 2015.
