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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">−</span>]</a></span></div><div class="docblock item-decl"><pre class="rust fn"><code>pub fn create_proof<C: <a class="trait" href="../../arithmetic/trait.CurveAffine.html" title="trait halo2_proofs::arithmetic::CurveAffine">CurveAffine</a>, E: <a class="trait" href="../../transcript/trait.EncodedChallenge.html" title="trait halo2_proofs::transcript::EncodedChallenge">EncodedChallenge</a><C>, R: <a class="trait" href="https://rust-random.github.io/rand/rand_core/trait.RngCore.html" title="trait rand_core::RngCore">RngCore</a>, T: <a class="trait" href="../../transcript/trait.TranscriptWrite.html" title="trait halo2_proofs::transcript::TranscriptWrite">TranscriptWrite</a><C, E>>(<br> params: &<a class="struct" href="struct.Params.html" title="struct halo2_proofs::poly::commitment::Params">Params</a><C>, <br> rng: R, <br> transcript: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T, <br> p_poly: &<a class="struct" href="../struct.Polynomial.html" title="struct halo2_proofs::poly::Polynomial">Polynomial</a><C::Scalar, <a class="struct" href="../struct.Coeff.html" title="struct halo2_proofs::poly::Coeff">Coeff</a>>, <br> p_blind: <a class="struct" href="struct.Blind.html" title="struct halo2_proofs::poly::commitment::Blind">Blind</a><C::Scalar>, <br> x_3: C::Scalar<br>) -> <a class="type" href="https://doc.rust-lang.org/nightly/std/io/error/type.Result.html" title="type std::io::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></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
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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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<p>This function will panic if the provided polynomial is too large with
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respect to the polynomial commitment parameters.</p>
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<p><strong>Important:</strong> This function assumes that the provided <code>transcript</code> has
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already seen the common inputs: the polynomial commitment P, the claimed
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opening v, and the point x. It’s probably also nice for the transcript
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to have seen the elliptic curve description and the URS, if you want to
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be rigorous.</p>
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