English to French Tech/Engineering Computers: Systems, Networks web security

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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