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Background # This document describes how 2 peers communicate with each other to send messages in a 1-to-1 chat, with privacy and authenticity guarantees.
Specification # Overview # This protocol MAY use any key-exchange mechanism previously discussed -">
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< meta property = "og:description" content = "Abstract # This specification describes how the Status 1-to-1 chat protocol is implemented on top of the Waku v2 protocol . This protocol can be used to send messages to a single recipient .
Background # This document describes how 2 peers communicate with each other to send messages in a 1-to-1 chat, with privacy and authenticity guarantees.
Specification # Overview # This protocol MAY use any key-exchange mechanism previously discussed -" />
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< li > < a href = "/spec/22/" > 22/TOY-CHAT< / a > < / li >
< li > < a href = "/spec/23/" > 23/WAKU2-TOPICS< / a > < / li >
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< li > < a href = "/spec/33/" > 33/WAKU2-DISCV5< / a > < / li >
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< li > < a href = "/spec/54/" > 54/WAKU2-X3DH-SESSIONS< / a > < / li >
< li > < a href = "/spec/55/" class = active > 55/STATUS-1TO1-CHAT< / a > < / li >
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< strong > 55/STATUS-1TO1-CHAT< / strong >
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< li > < a href = "#overview" > Overview< / a > < / li >
< li > < a href = "#flow" > Flow< / a >
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< li > < a href = "#negotiation-of-a-11-chat" > Negotiation of a 1:1 chat< / a > < / li >
< li > < a href = "#post-negotiation" > Post Negotiation< / a > < / li >
< li > < a href = "#session-management" > Session management< / a > < / li >
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< h1 id = "55status-1to1-chat" >
55/STATUS-1TO1-CHAT
< a class = "anchor" href = "#55status-1to1-chat" > #< / a >
< / h1 >
< h1 id = "status-1-to-1-chat" >
Status 1-to-1 Chat
< a class = "anchor" href = "#status-1-to-1-chat" > #< / a >
< / h1 >
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< ul >
< li > Status: draft< / li >
< li > Editor: Aaryamann Challani < a href = "mailto:aaryamann@status.im" > aaryamann@status.im< / a > < / li >
< li > Contributors:
Andrea Piana < a href = "mailto:andreap@status.im" > andreap@status.im< / a >
,
Pedro Pombeiro < a href = "mailto:pedro@status.im" > pedro@status.im< / a >
,
Corey Petty < a href = "mailto:corey@status.im" > corey@status.im< / a >
,
Oskar Thorén < a href = "mailto:oskar@status.im" > oskar@status.im< / a >
,
Dean Eigenmann < a href = "mailto:dean@status.im" > dean@status.im< / a >
< / li >
< / ul > < h1 id = "abstract" >
Abstract
< a class = "anchor" href = "#abstract" > #< / a >
< / h1 >
< p > This specification describes how the Status 1-to-1 chat protocol is implemented on top of the Waku v2 protocol.
This protocol can be used to send messages to a single recipient.< / p >
< h1 id = "background" >
Background
< a class = "anchor" href = "#background" > #< / a >
< / h1 >
< p > This document describes how 2 peers communicate with each other to send messages in a 1-to-1 chat, with privacy and authenticity guarantees.< / p >
< h1 id = "specification" >
Specification
< a class = "anchor" href = "#specification" > #< / a >
< / h1 >
< h2 id = "overview" >
Overview
< a class = "anchor" href = "#overview" > #< / a >
< / h2 >
< p > This protocol MAY use any key-exchange mechanism previously discussed -< / p >
< ol >
< li > < a href = "/spec/53/" > 53/WAKU2-X3DH< / a > < / li >
< li > < a href = "/spec/35/" > 35/WAKU2-NOISE< / a > < / li >
< / ol >
< p > This protocol can provide end-to-end encryption to give peers a strong degree of privacy and security.
Public chat messages are publicly readable by anyone since there’ s no permission model for who is participating in a public chat.< / p >
< h2 id = "flow" >
Flow
< a class = "anchor" href = "#flow" > #< / a >
< / h2 >
< h3 id = "negotiation-of-a-11-chat" >
Negotiation of a 1:1 chat
< a class = "anchor" href = "#negotiation-of-a-11-chat" > #< / a >
< / h3 >
< p > There are two phases in the initial negotiation of a 1:1 chat:< / p >
< ol >
< li > < strong > Identity verification< / strong > (e.g., face-to-face contact exchange through QR code, Identicon matching).
A QR code serves two purposes simultaneously - identity verification and initial key material retrieval;< / li >
< li > < strong > Asynchronous initial key exchange< / strong > < / li >
< / ol >
< p > For more information on account generation and trust establishment, see < a href = "https://specs.status.im/spec/2" > 2/ACCOUNT< / a > < / p >
< h3 id = "post-negotiation" >
Post Negotiation
< a class = "anchor" href = "#post-negotiation" > #< / a >
< / h3 >
< p > After the peers have shared their public key material, a 1:1 chat can be established using the methods described in the key-exchange protocols mentioned above.< / p >
< h3 id = "session-management" >
Session management
< a class = "anchor" href = "#session-management" > #< / a >
< / h3 >
< p > The 1:1 chat is made robust by having sessions between peers.
It is handled by the key-exchange protocol used. For example,< / p >
< ol >
< li >
< p > < a href = "/spec/53/" > 53/WAKU2-X3DH< / a > , the session management is described in < a href = "/spec/54/" > 54/WAKU2-X3DH-SESSIONS< / a > < / p >
< / li >
< li >
< p > < a href = "/spec/35/" > 35/WAKU2-NOISE< / a > , the session management is described in < a href = "/spec/37/" > 37/WAKU2-NOISE-SESSIONS< / a > < / p >
< / li >
< / ol >
< h1 id = "security-considerations" >
Security Considerations
< a class = "anchor" href = "#security-considerations" > #< / a >
< / h1 >
< ol >
< li > Inherits the security considerations of the key-exchange mechanism used, e.g., < a href = "/spec/53/" > 53/WAKU2-X3DH< / a > or < a href = "/spec/35/" > 35/WAKU2-NOISE< / a > < / li >
< / ol >
< h1 id = "copyright" >
Copyright
< a class = "anchor" href = "#copyright" > #< / a >
< / h1 >
< p > Copyright and related rights waived via < a href = "https://creativecommons.org/publicdomain/zero/1.0/" > CC0< / a > .< / p >
< h1 id = "references" >
References
< a class = "anchor" href = "#references" > #< / a >
< / h1 >
< ol >
< li > < a href = "https://specs.status.im/spec/2" > 2/ACCOUNT< / a > < / li >
< li > < a href = "/spec/53/" > 53/WAKU2-X3DH< / a > < / li >
< li > < a href = "/spec/35/" > 35/WAKU2-NOISE< / a > < / li >
< li > < a href = "/spec/10/" > 10/WAKU2< / a > < / li >
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< li > < a href = "#negotiation-of-a-11-chat" > Negotiation of a 1:1 chat< / a > < / li >
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