998 lines
27 KiB
HTML
Raw Normal View History

<!doctype html>
<html lang="en" class="no-js">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<meta name="description" content="Sonr is a decentralized identity network built on the Cosmos-sdk. It has early origins as a peer-to-peer file sharing network, but has since evolved into a platform for decentralized authentication and authorization. The early lessons taught from our file sharing roots are used as our theology for building the Sonr Blockchain.">
<link rel="canonical" href="https://onsonr.dev/concepts/ibc-accounts/">
<link rel="prev" href="../Token-Economy/">
<link rel="next" href="../nebula-ui/">
<link rel="icon" href="../../assets/images/favicon.png">
<meta name="generator" content="mkdocs-1.6.1, mkdocs-material-9.5.48">
<title>Interchain Accounts - Sonr Docs</title>
<link rel="stylesheet" href="../../assets/stylesheets/main.6f8fc17f.min.css">
<link rel="stylesheet" href="../../assets/stylesheets/palette.06af60db.min.css">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Geist:300,300i,400,400i,700,700i%7CGeist+Mono:400,400i,700,700i&display=fallback">
<style>:root{--md-text-font:"Geist";--md-code-font:"Geist Mono"}</style>
<script>__md_scope=new URL("../..",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
</head>
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="indigo">
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
<label class="md-overlay" for="__drawer"></label>
<div data-md-component="skip">
<a href="#interchain-accounts" class="md-skip">
Skip to content
</a>
</div>
<div data-md-component="announce">
</div>
<header class="md-header md-header--shadow md-header--lifted" data-md-component="header">
<nav class="md-header__inner md-grid" aria-label="Header">
<a href="../.." title="Sonr Docs" class="md-header__button md-logo" aria-label="Sonr Docs" data-md-component="logo">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54"/></svg>
</a>
<label class="md-header__button md-icon" for="__drawer">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3zm0 5h18v2H3zm0 5h18v2H3z"/></svg>
</label>
<div class="md-header__title" data-md-component="header-title">
<div class="md-header__ellipsis">
<div class="md-header__topic">
<span class="md-ellipsis">
Sonr Docs
</span>
</div>
<div class="md-header__topic" data-md-component="header-topic">
<span class="md-ellipsis">
Interchain Accounts
</span>
</div>
</div>
</div>
<form class="md-header__option" data-md-component="palette">
<input class="md-option" data-md-color-media="(prefers-color-scheme)" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="indigo" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_0">
<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_1" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1M8 13h8v-2H8zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4a5 5 0 0 0 5-5 5 5 0 0 0-5-5"/></svg>
</label>
<input class="md-option" data-md-color-media="(prefers-color-scheme: light)" data-md-color-scheme="default" data-md-color-primary="cyan" data-md-color-accent="cyan" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_1">
<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_2" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h10a5 5 0 0 0 5-5 5 5 0 0 0-5-5m0 8a3 3 0 0 1-3-3 3 3 0 0 1 3-3 3 3 0 0 1 3 3 3 3 0 0 1-3 3"/></svg>
</label>
<input class="md-option" data-md-color-media="(prefers-color-scheme: dark)" data-md-color-scheme="slate" data-md-color-primary="black" data-md-color-accent="cyan" aria-label="Switch to system preference" type="radio" name="__palette" id="__palette_2">
<label class="md-header__button md-icon" title="Switch to system preference" for="__palette_0" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h10a5 5 0 0 0 5-5 5 5 0 0 0-5-5M7 15a3 3 0 0 1-3-3 3 3 0 0 1 3-3 3 3 0 0 1 3 3 3 3 0 0 1-3 3"/></svg>
</label>
</form>
<script>var palette=__md_get("__palette");if(palette&&palette.color){if("(prefers-color-scheme)"===palette.color.media){var media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent")}for(var[key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
<label class="md-header__button md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
</label>
<div class="md-search" data-md-component="search" role="dialog">
<label class="md-search__overlay" for="__search"></label>
<div class="md-search__inner" role="search">
<form class="md-search__form" name="search">
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
<label class="md-search__icon md-icon" for="__search">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg>
</label>
<nav class="md-search__options" aria-label="Search">
<a href="javascript:void(0)" class="md-search__icon md-icon" title="Share" aria-label="Share" data-clipboard data-clipboard-text="" data-md-component="search-share" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7s-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91s2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08"/></svg>
</a>
<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></svg>
</button>
</nav>
<div class="md-search__suggest" data-md-component="search-suggest"></div>
</form>
<div class="md-search__output">
<div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
<div class="md-search-result" data-md-component="search-result">
<div class="md-search-result__meta">
Initializing search
</div>
<ol class="md-search-result__list" role="presentation"></ol>
</div>
</div>
</div>
</div>
</div>
</nav>
<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
<div class="md-grid">
<ul class="md-tabs__list">
<li class="md-tabs__item">
<a href="../.." class="md-tabs__link">
Introduction
</a>
</li>
<li class="md-tabs__item">
<a href="../../changelog/" class="md-tabs__link">
Changelog
</a>
</li>
<li class="md-tabs__item md-tabs__item--active">
<a href="../Chain-Modules/" class="md-tabs__link">
Concepts
</a>
</li>
<li class="md-tabs__item">
<a href="../../foundations/" class="md-tabs__link">
Foundations
</a>
</li>
</ul>
</div>
</nav>
</header>
<div class="md-container" data-md-component="container">
<main class="md-main" data-md-component="main">
<div class="md-main__inner md-grid">
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
<div class="md-sidebar__scrollwrap">
<div class="md-sidebar__inner">
<nav class="md-nav md-nav--primary md-nav--lifted md-nav--integrated" aria-label="Navigation" data-md-level="0">
<label class="md-nav__title" for="__drawer">
<a href="../.." title="Sonr Docs" class="md-nav__button md-logo" aria-label="Sonr Docs" data-md-component="logo">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54"/></svg>
</a>
Sonr Docs
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../.." class="md-nav__link">
<span class="md-ellipsis">
Introduction
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
<div class="md-nav__link md-nav__container">
<a href="../../changelog/" class="md-nav__link ">
<span class="md-ellipsis">
Changelog
</span>
</a>
</div>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_2">
<span class="md-nav__icon md-icon"></span>
Changelog
</label>
<ul class="md-nav__list" data-md-scrollfix>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" checked>
<label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="">
<span class="md-ellipsis">
Concepts
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="true">
<label class="md-nav__title" for="__nav_3">
<span class="md-nav__icon md-icon"></span>
Concepts
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../Chain-Modules/" class="md-nav__link">
<span class="md-ellipsis">
Chain Modules
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../Consumer-Launch/" class="md-nav__link">
<span class="md-ellipsis">
Consumer Chain Launch Process
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../Self-Custody/" class="md-nav__link">
<span class="md-ellipsis">
Self Custody
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../System-Architecture/" class="md-nav__link">
<span class="md-ellipsis">
System Architecture
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../Token-Economy/" class="md-nav__link">
<span class="md-ellipsis">
Token Economy
</span>
</a>
</li>
<li class="md-nav__item md-nav__item--active">
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
<label class="md-nav__link md-nav__link--active" for="__toc">
<span class="md-ellipsis">
Interchain Accounts
</span>
<span class="md-nav__icon md-icon"></span>
</label>
<a href="./" class="md-nav__link md-nav__link--active">
<span class="md-ellipsis">
Interchain Accounts
</span>
</a>
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
</label>
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
<li class="md-nav__item">
<a href="#what-is-the-interchain-accounts-module" class="md-nav__link">
<span class="md-ellipsis">
What is the Interchain Accounts module?
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#concepts" class="md-nav__link">
<span class="md-ellipsis">
Concepts
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#sdk-security-model" class="md-nav__link">
<span class="md-ellipsis">
SDK security model
</span>
</a>
</li>
<li class="md-nav__item">
<a href="#channel-closure" class="md-nav__link">
<span class="md-ellipsis">
Channel Closure
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item">
<a href="../nebula-ui/" class="md-nav__link">
<span class="md-ellipsis">
Nebula ui
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../sdk-usage/" class="md-nav__link">
<span class="md-ellipsis">
Sdk usage
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../svc-management/" class="md-nav__link">
<span class="md-ellipsis">
Svc management
</span>
</a>
</li>
</ul>
</nav>
</li>
<li class="md-nav__item md-nav__item--nested">
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" >
<div class="md-nav__link md-nav__container">
<a href="../../foundations/" class="md-nav__link ">
<span class="md-ellipsis">
Foundations
</span>
</a>
<label class="md-nav__link " for="__nav_4" id="__nav_4_label" tabindex="0">
<span class="md-nav__icon md-icon"></span>
</label>
</div>
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="false">
<label class="md-nav__title" for="__nav_4">
<span class="md-nav__icon md-icon"></span>
Foundations
</label>
<ul class="md-nav__list" data-md-scrollfix>
<li class="md-nav__item">
<a href="../../foundations/hway/" class="md-nav__link">
<span class="md-ellipsis">
Hway
</span>
</a>
</li>
<li class="md-nav__item">
<a href="../../foundations/motr/" class="md-nav__link">
<span class="md-ellipsis">
Motr
</span>
</a>
</li>
</ul>
</nav>
</li>
</ul>
</nav>
</div>
</div>
</div>
<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<h1 id="interchain-accounts">Interchain Accounts</h1>
<p>:::note Synopsis
Learn about what the Interchain Accounts module is
:::</p>
<h2 id="what-is-the-interchain-accounts-module">What is the Interchain Accounts module?</h2>
<p>Interchain Accounts is the Cosmos SDK implementation of the ICS-27 protocol, which enables cross-chain account management built upon IBC.</p>
<ul>
<li>How does an interchain account differ from a regular account?</li>
</ul>
<p>Regular accounts use a private key to sign transactions. Interchain Accounts are instead controlled programmatically by counterparty chains via IBC packets.</p>
<h2 id="concepts">Concepts</h2>
<p><code>Host Chain</code>: The chain where the interchain account is registered. The host chain listens for IBC packets from a controller chain which should contain instructions (e.g. Cosmos SDK messages) for which the interchain account will execute.</p>
<p><code>Controller Chain</code>: The chain registering and controlling an account on a host chain. The controller chain sends IBC packets to the host chain to control the account.</p>
<p><code>Interchain Account</code>: An account on a host chain created using the ICS-27 protocol. An interchain account has all the capabilities of a normal account. However, rather than signing transactions with a private key, a controller chain will send IBC packets to the host chain which signals what transactions the interchain account should execute.</p>
<p><code>Authentication Module</code>: A custom application module on the controller chain that uses the Interchain Accounts module to build custom logic for the creation &amp; management of interchain accounts. It can be either an IBC application module using the <a href="10-legacy/03-keeper-api.md">legacy API</a>, or a regular Cosmos SDK application module sending messages to the controller submodule's <code>MsgServer</code> (this is the recommended approach from ibc-go v6 if access to packet callbacks is not needed). Please note that the legacy API will eventually be removed and IBC applications will not be able to use them in later releases.</p>
<h2 id="sdk-security-model">SDK security model</h2>
<p>SDK modules on a chain are assumed to be trustworthy. For example, there are no checks to prevent an untrustworthy module from accessing the bank keeper.</p>
<p>The implementation of ICS-27 in ibc-go uses this assumption in its security considerations.</p>
<p>The implementation assumes other IBC application modules will not bind to ports within the ICS-27 namespace.</p>
<h2 id="channel-closure">Channel Closure</h2>
<p>The provided interchain account host and controller implementations do not support <code>ChanCloseInit</code>. However, they do support <code>ChanCloseConfirm</code>.
This means that the host and controller modules cannot close channels, but they will confirm channel closures initiated by other implementations of ICS-27.</p>
<p>In the event of a channel closing (due to a packet timeout in an ordered channel, for example), the interchain account associated with that channel can become accessible again if a new channel is created with a (JSON-formatted) version string that encodes the exact same <code>Metadata</code> information of the previous channel. The channel can be reopened using either <a href="./05-messages.md#msgregisterinterchainaccount"><code>MsgRegisterInterchainAccount</code></a> or <code>MsgChannelOpenInit</code>. If <code>MsgRegisterInterchainAccount</code> is used, then it is possible to leave the <code>version</code> field of the message empty, since it will be filled in by the controller submodule. If <code>MsgChannelOpenInit</code> is used, then the <code>version</code> field must be provided with the correct JSON-encoded <code>Metadata</code> string. See section <a href="./09-active-channels.md#understanding-active-channels">Understanding Active Channels</a> for more information.</p>
<p>When reopening a channel with the default controller submodule, the ordering of the channel cannot be changed. In order to change the ordering of the channel, the channel has to go through a <a href="../../01-ibc/06-channel-upgrades.md">channel upgrade handshake</a> or reopen the channel with a custom controller implementation.</p>
</article>
</div>
<script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script>
</div>
<button type="button" class="md-top md-icon" data-md-component="top" hidden>
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8z"/></svg>
Back to top
</button>
</main>
<footer class="md-footer">
<nav class="md-footer__inner md-grid" aria-label="Footer" >
<a href="../Token-Economy/" class="md-footer__link md-footer__link--prev" aria-label="Previous: Token Economy">
<div class="md-footer__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg>
</div>
<div class="md-footer__title">
<span class="md-footer__direction">
Previous
</span>
<div class="md-ellipsis">
Token Economy
</div>
</div>
</a>
<a href="../nebula-ui/" class="md-footer__link md-footer__link--next" aria-label="Next: Nebula ui">
<div class="md-footer__title">
<span class="md-footer__direction">
Next
</span>
<div class="md-ellipsis">
Nebula ui
</div>
</div>
<div class="md-footer__button md-icon">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11z"/></svg>
</div>
</a>
</nav>
<div class="md-footer-meta md-typeset">
<div class="md-footer-meta__inner md-grid">
<div class="md-copyright">
Made with
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
Material for MkDocs
</a>
</div>
</div>
</div>
</footer>
</div>
<div class="md-dialog" data-md-component="dialog">
<div class="md-dialog__inner md-typeset"></div>
</div>
<script id="__config" type="application/json">{"base": "../..", "features": ["announce.dismiss", "content.action.edit", "content.action.view", "content.code.annotate", "content.code.copy", "content.code.select", "content.tooltips", "header.autohide", "navigation.footer", "navigation.indexes", "navigation.instant", "navigation.instant.prefetch", "navigation.sections", "navigation.tabs", "navigation.tabs.sticky", "navigation.top", "navigation.tracking", "search.highlight", "search.share", "search.suggest", "toc.follow", "toc.integrate"], "search": "../../assets/javascripts/workers/search.6ce7567c.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script>
<script src="../../assets/javascripts/bundle.83f73b43.min.js"></script>
</body>
</html>