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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="This module contains an implementation of the polynomial commitment scheme described in the Halo paper."><meta name="keywords" content="rust, rustlang, rust-lang, commitment"><title>halo2_proofs::poly::commitment - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><script defer src="../../../main.js"></script>
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</head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../../halo2_proofs/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div>
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</a><h2 class="location"><a href="#">Module commitment</a></h2><div class="sidebar-elems"><section><div class="block"><ul><li><a href="#structs">Structs</a></li><li><a href="#functions">Functions</a></li></ul></div></section><div id="sidebar-vars" data-name="commitment" data-ty="mod" data-relpath="./"></div><script defer src="./sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../../halo2_proofs/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><nav class="sub"><div class="theme-picker hidden"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="22" height="22" alt="Pick another theme!" src="../../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><div class="main-heading">
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<h1 class="fqn"><span class="in-band">Module <a href="../../index.html">halo2_proofs</a>::<wbr><a href="../index.html">poly</a>::<wbr><a class="mod" href="#">commitment</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span></h1><span class="out-of-band"><a class="srclink" href="../../../src/halo2_proofs/poly/commitment.rs.html#1-376">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>This module contains an implementation of the polynomial commitment scheme
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described in the <a href="https://eprint.iacr.org/2019/1021">Halo</a> paper.</p>
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</div></details><h2 id="structs" class="small-section-header"><a href="#structs">Structs</a></h2>
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<div class="item-table"><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.Accumulator.html" title="halo2_proofs::poly::commitment::Accumulator struct">Accumulator</a></div><div class="item-right docblock-short"><p>An accumulator instance consisting of an evaluation claim and a proof.</p>
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</div></div><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.Blind.html" title="halo2_proofs::poly::commitment::Blind struct">Blind</a></div><div class="item-right docblock-short"><p>Wrapper type around a blinding factor.</p>
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</div></div><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.Guard.html" title="halo2_proofs::poly::commitment::Guard struct">Guard</a></div><div class="item-right docblock-short"><p>A guard returned by the verifier</p>
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</div></div><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.MSM.html" title="halo2_proofs::poly::commitment::MSM struct">MSM</a></div><div class="item-right docblock-short"><p>A multiscalar multiplication in the polynomial commitment scheme</p>
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</div></div><div class="item-row"><div class="item-left module-item"><a class="struct" href="struct.Params.html" title="halo2_proofs::poly::commitment::Params struct">Params</a></div><div class="item-right docblock-short"><p>These are the public parameters for the polynomial commitment scheme.</p>
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</div></div></div><h2 id="functions" class="small-section-header"><a href="#functions">Functions</a></h2>
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<div class="item-table"><div class="item-row"><div class="item-left module-item"><a class="fn" href="fn.create_proof.html" title="halo2_proofs::poly::commitment::create_proof fn">create_proof</a></div><div class="item-right docblock-short"><p>Create a polynomial commitment opening proof for the polynomial defined
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by the coefficients <code>px</code>, the blinding factor <code>blind</code> used for the
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polynomial commitment, and the point <code>x</code> that the polynomial is
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evaluated at.</p>
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</div></div><div class="item-row"><div class="item-left module-item"><a class="fn" href="fn.verify_proof.html" title="halo2_proofs::poly::commitment::verify_proof fn">verify_proof</a></div><div class="item-right docblock-short"><p>Checks to see if the proof represented within <code>transcript</code> is valid, and a
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point <code>x</code> that the polynomial commitment <code>P</code> opens purportedly to the value
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<code>v</code>. The provided <code>msm</code> should evaluate to the commitment <code>P</code> being opened.</p>
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