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<meta name="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.
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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.
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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.
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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.
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Specification # Overview # This protocol MAY use any key-exchange mechanism previously discussed -" />
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<ul>
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<li>Raw
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<ul>
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<li><a href="/spec/20/">20/TOY-ETH-PM</a></li>
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<li><a href="/spec/24/">24/STATUS-CURATION</a></li>
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<li><a href="/spec/28/">28/STATUS-FEATURING</a></li>
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<li><a href="/spec/31/">31/WAKU2-ENR</a></li>
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<li><a href="/spec/32/">32/RLN-SPEC</a></li>
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<li><a href="/spec/34/">34/WAKU2-PEER-EXCHANGE</a></li>
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<li><a href="/spec/35/">35/WAKU2-NOISE</a></li>
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<li><a href="/spec/37/">37/WAKU2-NOISE-SESSIONS</a></li>
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<li><a href="/spec/38/">38/CONSENSUS-CLARO</a></li>
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<li><a href="/spec/43/">43/WAKU2-NOISE-PAIRING</a></li>
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<li><a href="/spec/44/">44/WAKU2-DANDELION</a></li>
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<li><a href="/spec/45/">45/WAKU2-ADVERSARIAL-MODELS</a></li>
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<li><a href="/spec/46/">46/GOSSIPSUB-TOR-PUSH</a></li>
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<li><a href="/spec/47/">47/WAKU2-TOR-PUSH</a></li>
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<li><a href="/spec/48/">48/RLN-INTEREP-SPEC</a></li>
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<li><a href="/spec/51/">51/WAKU2-RELAY-SHARDING</a></li>
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<li><a href="/spec/52/">52/WAKU2-RELAY-STATIC-SHARD-ALLOC</a></li>
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</ul>
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</li>
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<li>Draft
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<ul>
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<li><a href="/spec/1/">1/COSS</a></li>
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<li><a href="/spec/3/">3/REMOTE-LOG</a></li>
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<li><a href="/spec/4/">4/MVDS-META</a></li>
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<li><a href="/spec/10/">10/WAKU2</a></li>
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<li><a href="/spec/12/">12/WAKU2-FILTER</a></li>
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<li><a href="/spec/13/">13/WAKU2-STORE</a></li>
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<li><a href="/spec/14/">14/WAKU2-MESSAGE</a></li>
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<li><a href="/spec/15/">15/WAKU2-BRIDGE</a></li>
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<li><a href="/spec/16/">16/WAKU2-RPC</a></li>
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<li><a href="/spec/17/">17/WAKU2-RLN-RELAY</a></li>
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<li><a href="/spec/18/">18/WAKU2-SWAP</a></li>
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<li><a href="/spec/19/">19/WAKU2-LIGHTPUSH</a></li>
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<li><a href="/spec/21/">21/WAKU2-FTSTORE</a></li>
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<li><a href="/spec/22/">22/TOY-CHAT</a></li>
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<li><a href="/spec/23/">23/WAKU2-TOPICS</a></li>
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<li><a href="/spec/26/">26/WAKU2-PAYLOAD</a></li>
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<li><a href="/spec/27/">27/WAKU2-PEERS</a></li>
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<li><a href="/spec/29/">29/WAKU2-CONFIG</a></li>
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<li><a href="/spec/30/">30/ADAPTIVE-NODES</a></li>
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<li><a href="/spec/33/">33/WAKU2-DISCV5</a></li>
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<li><a href="/spec/36/">36/WAKU2-BINDINGS-API</a></li>
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<li><a href="/spec/53/">53/WAKU2-X3DH</a></li>
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<li><a href="/spec/54/">54/WAKU2-X3DH-SESSIONS</a></li>
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<li><a href="/spec/55/"class=active>55/STATUS-1TO1-CHAT</a></li>
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<li><a href="/spec/56/">56/STATUS-COMMUNITIES</a></li>
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</ul>
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</li>
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<li>Stable
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<ul>
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<li><a href="/spec/2/">2/MVDS</a></li>
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<li><a href="/spec/6/">6/WAKU1</a></li>
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<li><a href="/spec/7/">7/WAKU-DATA</a></li>
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<li><a href="/spec/8/">8/WAKU-MAIL</a></li>
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<li><a href="/spec/9/">9/WAKU-RPC</a></li>
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<li><a href="/spec/11/">11/WAKU2-RELAY</a></li>
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</ul>
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</li>
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<li>Deprecated
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<ul>
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<li><a href="/spec/5/">5/WAKU0</a></li>
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</ul>
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</li>
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<li>Retired</li>
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</ul>
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<strong>55/STATUS-1TO1-CHAT</strong>
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<img src="/svg/toc.svg" class="book-icon" alt="Table of Contents" />
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<li><a href="#overview">Overview</a></li>
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<li><a href="#flow">Flow</a>
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<ul>
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<li><a href="#negotiation-of-a-11-chat">Negotiation of a 1:1 chat</a></li>
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<li><a href="#post-negotiation">Post Negotiation</a></li>
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<li><a href="#session-management">Session management</a></li>
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<article class="markdown">
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<h1 id="55status-1to1-chat">
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55/STATUS-1TO1-CHAT
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<a class="anchor" href="#55status-1to1-chat">#</a>
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</h1>
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<h1 id="status-1-to-1-chat">
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Status 1-to-1 Chat
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<a class="anchor" href="#status-1-to-1-chat">#</a>
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</h1>
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<img src="https://img.shields.io/badge/status-draft-blue?style=flat-square" />
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<ul>
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<li>Status: draft</li>
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<li>Editor: Aaryamann Challani <a href="mailto:aaryamann@status.im">aaryamann@status.im</a></li>
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<li>Contributors:
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Andrea Piana <a href="mailto:andreap@status.im">andreap@status.im</a>
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,
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Pedro Pombeiro <a href="mailto:pedro@status.im">pedro@status.im</a>
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,
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Corey Petty <a href="mailto:corey@status.im">corey@status.im</a>
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,
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Oskar Thorén <a href="mailto:oskar@status.im">oskar@status.im</a>
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,
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Dean Eigenmann <a href="mailto:dean@status.im">dean@status.im</a>
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</li>
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</ul><h1 id="abstract">
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Abstract
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<a class="anchor" href="#abstract">#</a>
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</h1>
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<p>This specification describes how the Status 1-to-1 chat protocol is implemented on top of the Waku v2 protocol.
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This protocol can be used to send messages to a single recipient.</p>
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<h1 id="background">
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Background
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<a class="anchor" href="#background">#</a>
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</h1>
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<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>
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<h1 id="specification">
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Specification
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<a class="anchor" href="#specification">#</a>
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</h1>
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<h2 id="overview">
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Overview
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<a class="anchor" href="#overview">#</a>
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</h2>
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<p>This protocol MAY use any key-exchange mechanism previously discussed -</p>
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<ol>
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<li><a href="/spec/53/">53/WAKU2-X3DH</a></li>
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<li><a href="/spec/35/">35/WAKU2-NOISE</a></li>
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</ol>
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<p>This protocol can provide end-to-end encryption to give peers a strong degree of privacy and security.
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Public chat messages are publicly readable by anyone since there’s no permission model for who is participating in a public chat.</p>
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<h2 id="flow">
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Flow
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<a class="anchor" href="#flow">#</a>
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</h2>
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<h3 id="negotiation-of-a-11-chat">
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Negotiation of a 1:1 chat
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<a class="anchor" href="#negotiation-of-a-11-chat">#</a>
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</h3>
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<p>There are two phases in the initial negotiation of a 1:1 chat:</p>
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<ol>
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<li><strong>Identity verification</strong> (e.g., face-to-face contact exchange through QR code, Identicon matching).
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A QR code serves two purposes simultaneously - identity verification and initial key material retrieval;</li>
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<li><strong>Asynchronous initial key exchange</strong></li>
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</ol>
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<p>For more information on account generation and trust establishment, see <a href="https://specs.status.im/spec/2">2/ACCOUNT</a></p>
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<h3 id="post-negotiation">
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Post Negotiation
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<a class="anchor" href="#post-negotiation">#</a>
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</h3>
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<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>
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<h3 id="session-management">
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Session management
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<a class="anchor" href="#session-management">#</a>
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</h3>
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<p>The 1:1 chat is made robust by having sessions between peers.
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It is handled by the key-exchange protocol used. For example,</p>
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<ol>
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<li>
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<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>
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</li>
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<li>
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<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>
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</li>
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</ol>
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<h1 id="security-considerations">
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Security Considerations
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<a class="anchor" href="#security-considerations">#</a>
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</h1>
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<ol>
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<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>
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</ol>
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<h1 id="copyright">
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Copyright
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<a class="anchor" href="#copyright">#</a>
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</h1>
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<p>Copyright and related rights waived via <a href="https://creativecommons.org/publicdomain/zero/1.0/">CC0</a>.</p>
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<h1 id="references">
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References
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<a class="anchor" href="#references">#</a>
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</h1>
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<ol>
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<li><a href="https://specs.status.im/spec/2">2/ACCOUNT</a></li>
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<li><a href="/spec/53/">53/WAKU2-X3DH</a></li>
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<li><a href="/spec/35/">35/WAKU2-NOISE</a></li>
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<li><a href="/spec/10/">10/WAKU2</a></li>
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</ol>
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<li><a href="#post-negotiation">Post Negotiation</a></li>
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