<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="Transcript view from the perspective of a verifier that has access to an input stream of data from the prover to the verifier."><metaname="keywords"content="rust, rustlang, rust-lang, TranscriptRead"><title>TranscriptRead in halo2_proofs::transcript - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceSerif4-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../FiraSans-Regular.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../FiraSans-Medium.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceCodePro-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceSerif4-Bold.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../SourceCodePro-Semibold.ttf.woff2"><linkrel="stylesheet"type="text/css"href="../../normalize.css"><linkrel="stylesheet"type="text/css"href="../../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../../ayu.css"disabled><linkrel="stylesheet"type="text/css"href="../../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../../light.css"id="themeStyle"><scriptid="default-settings"></script><scriptsrc="../../storage.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../main.js"></script><noscript><linkrel="stylesheet"href="../../noscript.css"></noscript><linkrel="alternate icon"type="image/png"href="../../favicon-16x16.png"><linkrel="alternate icon"type="image/png"href="../../favicon-32x32.png"><linkrel="icon"type="image/svg+xml"href="../../favicon.svg"><linkrel="stylesheet"href="https://cdn.jsdelivr.net/npm/katex@0.10.0/dist/katex.min.css"integrity="sha384-9eLZqc9ds8eNjO3TmqPeYcDj8n+Qfa4nuSiGYa6DjLNcv9BtN69ZIulL9+8CqC9Y"crossorigin="anonymous">
</head><bodyclass="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle">☰</button><aclass="sidebar-logo"href="../../halo2_proofs/index.html"><divclass="logo-container"><imgclass="rust-logo"src="../../rust-logo.svg"alt="logo"></div></a><h2class="location"></h2></nav><navclass="sidebar"><aclass="sidebar-logo"href="../../halo2_proofs/index.html"><divclass="logo-container"><imgclass="rust-logo"src="../../rust-logo.svg"alt="logo"></div></a><h2class="location"><ahref="#">TranscriptRead</a></h2><divclass="sidebar-elems"><section><divclass="block"><h3class="sidebar-title"><ahref="#required-methods">Required Methods</a></h3><ul><li><ahref="#tymethod.read_point">read_point</a></li><li><ahref="#tymethod.read_scalar">read_scalar</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#implementors">Implementors</a></h3></div></section><h2class="location"><ahref="index.html">In halo2_proofs::transcript</a></h2></div></nav><main><divclass="width-limiter"><divclass="sub-container"><aclass="sub-logo-container"href="../../halo2_proofs/index.html"><imgclass="rust-logo"src="../../rust-logo.svg"alt="logo"></a><navclass="sub"><formclass="search-form"><divclass="search-container"><span></span><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><divid="help-button"title="help"tabindex="-1"><buttontype="button">?</button></div><divid="settings-menu"tabindex="-1"><ahref="../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../wheel.svg"></a></div></div></form></nav></div><sectionid="main-content"class="content"><divclass="main-heading"><h1class="fqn"><spanclass="in-band">Trait <ahref="../index.html">halo2_proofs</a>::<wbr><ahref="index.html">transcript</a>::<wbr><aclass="trait"href="#">TranscriptRead</a><buttonid="copy-path"onclick="copy_path(this)"title="Copy item path to clipboard"><imgsrc="../../clipboard.svg"width="19"height="18"alt="Copy item path"></button></span></h1><spanclass="out-of-band"><aclass="srclink"href="../../src/halo2_proofs/transcript.rs.html#46-52">source</a> · <aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass="inner">−</span>]</a></span></div><divclass="docblock item-decl"><preclass="rust trait"><code>pub trait TranscriptRead<C: <aclass="trait"href="../arithmetic/trait.CurveAffine.html"title="trait halo2_proofs::arithmetic::CurveAffine">CurveAffine</a>, E: <aclass="trait"href="trait.EncodedChallenge.html"title="trait halo2_proofs::transcript::EncodedChallenge">EncodedChallenge</a><C>>: <aclass="trait"href="trait.Transcript.html"title="trait halo2_proofs::transcript::Transcript">Transcript</a><C, E> {
}</code></pre></div><detailsclass="rustdoc-toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>Transcript view from the perspective of a verifier that has access to an
input stream of data from the prover to the verifier.</p>
</div></details><h2id="required-methods"class="small-section-header">Required Methods<ahref="#required-methods"class="anchor"></a></h2><divclass="methods"><detailsclass="rustdoc-toggle"open><summary><divid="tymethod.read_point"class="method has-srclink"><divclass="rightside"><aclass="srclink"href="../../src/halo2_proofs/transcript.rs.html#48">source</a></div><h4class="code-header">fn <ahref="#tymethod.read_point"class="fnname">read_point</a>(&mut self) -><aclass="type"href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html"title="type std::io::error::Result">Result</a><C></h4></div></summary><divclass="docblock"><p>Read a curve point from the prover.</p>
</div></details><detailsclass="rustdoc-toggle"open><summary><divid="tymethod.read_scalar"class="method has-srclink"><divclass="rightside"><aclass="srclink"href="../../src/halo2_proofs/transcript.rs.html#51">source</a></div><h4class="code-header">fn <ahref="#tymethod.read_scalar"class="fnname">read_scalar</a>(&mut self) -><aclass="type"href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html"title="type std::io::error::Result">Result</a><C::Scalar></h4></div></summary><divclass="docblock"><p>Read a curve scalar from the prover.</p>