[messaging] Fwd: [liberationtech] (n+1)sec = more privacy on the internet

Natanael natanael.l at gmail.com
Wed Dec 10 10:40:51 PST 2014

Seems relevant for this list :)

Haven't looked close at it yet

- Sent from my tablet
---------- Vidarebefordrat meddelande ----------
Från: "Dmitri Vitaliev" <dmitri at equalit.ie>
Datum: 10 dec 2014 17:31
Ämne: [liberationtech] (n+1)sec = more privacy on the internet
Till: <liberationtech at lists.stanford.edu>

 Dear Libtech

In recognition and celebration of Human Rights Day, eQualit.ie is proud to
release the first public draft of a provably secure protocol for group
messaging on the Internet https://learn.equalit.ie/wiki/Np1sec

The protocol provides for end­-to­-end security of synchronous
communications between any number of people. It is efficient and builds on
recent advancements in cryptographic research. Security properties of
(n+1)sec include:

* Confidentiality: the conversation is not readable to an outsider
* Forward secrecy: conversation history remains unreadable to an outsider
even if participants’ encryption keys are compromised
* Deniable authentication: Nobody can prove your participation in a chat
* Authorship: A message recipient can be assured of the sender’s
authenticity even if other participants in the room try to impersonate the
* Room consistency: Group chat participants are confident that they are in
the same room
* Transcript consistency:  Group chat participants are confident that they
are seeing the same sequence of messages

The protocol is being implemented as a FLOSS libpurple plugin and will find
its first home in crypto.cat. We anticipate wide adoption in other instant
messaging platforms. Contact us and join the conversation on the wiki
https://learn.equalit.ie/wiki/Talk:Np1sec and check out the early code on

Dmitri Vitaliev

Director | https://equalit.ie | https://deflect.ca
GPG key ID: 0x6FF1895D

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