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  3. Computers: Systems, Networks

Deniable authentication

18:26 Mar 20, 2019
English to French translations [PRO]
Tech/Engineering - Computers: Systems, Networks / web security
English term or phrase: Deniable authentication
Extrait:

Group chat e2ee
(n+1)sec is a secure group messaging protocol authored by eQualit.ie with support from the Open Technology Fund. It is also a free and open source software library. The main idea behind this project is to allow secure (sec) instantaneous communications between any number (n) of people. The protocol provides for end¬-to¬-end security of synchronous communications. 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 sender
• 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
Fannie Poirier
Canada


Summary of answers provided
4 +1authentification niable
FX Fraipont (X)


  

Answers


3 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
deniable authentication
authentification niable


Explanation:
"Eviter Surveillance Internet: Le guide complet
https://wikifrax.info/.../9103-eviter-surveillance-internet-...
Il utilise un style intéressant de la cryptographie appelée authentification "niable, ce qui signifie que, après la conversation, les deux participants peuvent nier ...

FX Fraipont (X)
Belgium
Local time: 18:47
Native speaker of: Native in FrenchFrench
PRO pts in category: 331

Peer comments on this answer (and responses from the answerer)
agree  Daryo: exactly that! It's not about the system denying access to the user, but about the user being able to plausibly deny having accessed the system.
1 day 13 hrs
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