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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="Create a polynomial commitment opening proof for the polynomial defined by the coefficients `px`, the blinding factor `blind` used for the polynomial commitment, and the point `x` that the polynomial is evaluated at."><meta name="keywords" content="rust, rustlang, rust-lang, create_proof"><title>create_proof in 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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</a><div class="sidebar-elems"><h2 class="location"><a href="index.html">In halo2_proofs::poly::commitment</a></h2><div id="sidebar-vars" data-name="create_proof" data-ty="fn" 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"><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><div id="settings-menu" tabindex="-1">
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<h1 class="fqn"><span class="in-band">Function <a href="../../index.html">halo2_proofs</a>::<wbr><a href="../index.html">poly</a>::<wbr><a href="index.html">commitment</a>::<wbr><a class="fn" href="#">create_proof</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/prover.rs.html#27-151">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="docblock item-decl"><pre class="rust fn"><code>pub fn create_proof&lt;C:&nbsp;<a class="trait" href="../../arithmetic/trait.CurveAffine.html" title="trait halo2_proofs::arithmetic::CurveAffine">CurveAffine</a>, E:&nbsp;<a class="trait" href="../../transcript/trait.EncodedChallenge.html" title="trait halo2_proofs::transcript::EncodedChallenge">EncodedChallenge</a>&lt;C&gt;, R:&nbsp;<a class="trait" href="https://rust-random.github.io/rand/rand_core/trait.RngCore.html" title="trait rand_core::RngCore">RngCore</a>, T:&nbsp;<a class="trait" href="../../transcript/trait.TranscriptWrite.html" title="trait halo2_proofs::transcript::TranscriptWrite">TranscriptWrite</a>&lt;C, E&gt;&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;params: &amp;<a class="struct" href="struct.Params.html" title="struct halo2_proofs::poly::commitment::Params">Params</a>&lt;C&gt;, <br>&nbsp;&nbsp;&nbsp;&nbsp;rng: R, <br>&nbsp;&nbsp;&nbsp;&nbsp;transcript: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T, <br>&nbsp;&nbsp;&nbsp;&nbsp;p_poly: &amp;<a class="struct" href="../struct.Polynomial.html" title="struct halo2_proofs::poly::Polynomial">Polynomial</a>&lt;C::Scalar, <a class="struct" href="../struct.Coeff.html" title="struct halo2_proofs::poly::Coeff">Coeff</a>&gt;, <br>&nbsp;&nbsp;&nbsp;&nbsp;p_blind: <a class="struct" href="struct.Blind.html" title="struct halo2_proofs::poly::commitment::Blind">Blind</a>&lt;C::Scalar&gt;, <br>&nbsp;&nbsp;&nbsp;&nbsp;x_3: C::Scalar<br>) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>&gt;</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Create a polynomial commitment opening proof for the polynomial defined
deploy: 9617336d46a18f3949260731d02bd711fba9d863
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by the coefficients <code>px</code>, the blinding factor <code>blind</code> used for the
polynomial commitment, and the point <code>x</code> that the polynomial is
evaluated at.</p>
<p>This function will panic if the provided polynomial is too large with
respect to the polynomial commitment parameters.</p>
<p><strong>Important:</strong> This function assumes that the provided <code>transcript</code> has
already seen the common inputs: the polynomial commitment P, the claimed
opening v, and the point x. It’s probably also nice for the transcript
to have seen the elliptic curve description and the URS, if you want to
be rigorous.</p>
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