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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="Trait which describes extendable-output functions (XOF)."><meta name="keywords" content="rust, rustlang, rust-lang, ExtendableOutput"><title>ExtendableOutput in digest - 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><h2 class="location">Trait ExtendableOutput</h2><div class="sidebar-elems"><div class="block items"><h3 class="sidebar-title"><a href="#associated-types">Associated Types</a></h3><div class="sidebar-links"><a href="#associatedtype.Reader">Reader</a></div><h3 class="sidebar-title"><a href="#required-methods">Required Methods</a></h3><div class="sidebar-links"><a href="#tymethod.finalize_xof">finalize_xof</a><a href="#tymethod.finalize_xof_reset">finalize_xof_reset</a></div><h3 class="sidebar-title"><a href="#provided-methods">Provided Methods</a></h3><div class="sidebar-links"><a href="#method.finalize_boxed">finalize_boxed</a><a href="#method.finalize_boxed_reset">finalize_boxed_reset</a></div><h3 class="sidebar-title"><a href="#implementors">Implementors</a></h3></div><h2 class="location">Other items in<br><a href="index.html">digest</a></h2><div id="sidebar-vars" data-name="ExtendableOutput" data-ty="trait" 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="../digest/index.html"><img src="https://raw.githubusercontent.com/RustCrypto/meta/master/logo_small.png" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../brush.svg"></button><div id="theme-choices" role="menu"></div></div><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="index.html">digest</a>::<wbr><a class="trait" href="#">ExtendableOutput</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><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../src/digest/xof.rs.html#30-65" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust trait"><code>pub trait ExtendableOutput: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
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type <a href="#associatedtype.Reader" class="associatedtype">Reader</a>: <a class="trait" href="trait.XofReader.html" title="trait digest::XofReader">XofReader</a>;
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fn <a href="#tymethod.finalize_xof" class="fnname">finalize_xof</a>(self) -> Self::<a class="associatedtype" href="trait.ExtendableOutput.html#associatedtype.Reader" title="type digest::ExtendableOutput::Reader">Reader</a>;
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<div class="item-spacer"></div> fn <a href="#tymethod.finalize_xof_reset" class="fnname">finalize_xof_reset</a>(&mut self) -> Self::<a class="associatedtype" href="trait.ExtendableOutput.html#associatedtype.Reader" title="type digest::ExtendableOutput::Reader">Reader</a>;
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fn <a href="#method.finalize_boxed" class="fnname">finalize_boxed</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="https://doc.rust-lang.org/1.59.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">]</a>> { ... }
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<div class="item-spacer"></div> fn <a href="#method.finalize_boxed_reset" class="fnname">finalize_boxed_reset</a>(&mut self, n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="https://doc.rust-lang.org/1.59.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">]</a>> { ... }
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}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Trait which describes extendable-output functions (XOF).</p>
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</div></details><h2 id="associated-types" class="small-section-header">Associated Types<a href="#associated-types" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="associatedtype.Reader" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/digest/xof.rs.html#32" title="goto source code">[src]</a></div><h4 class="code-header">type <a href="#associatedtype.Reader" class="associatedtype">Reader</a>: <a class="trait" href="trait.XofReader.html" title="trait digest::XofReader">XofReader</a></h4></div></summary><div class="docblock"><p>Reader</p>
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</div></details></div><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="tymethod.finalize_xof" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/digest/xof.rs.html#35" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#tymethod.finalize_xof" class="fnname">finalize_xof</a>(self) -> Self::<a class="associatedtype" href="trait.ExtendableOutput.html#associatedtype.Reader" title="type digest::ExtendableOutput::Reader">Reader</a></h4></div></summary><div class="docblock"><p>Retrieve XOF reader and consume hasher instance.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="tymethod.finalize_xof_reset" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/digest/xof.rs.html#38" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#tymethod.finalize_xof_reset" class="fnname">finalize_xof_reset</a>(&mut self) -> Self::<a class="associatedtype" href="trait.ExtendableOutput.html#associatedtype.Reader" title="type digest::ExtendableOutput::Reader">Reader</a></h4></div></summary><div class="docblock"><p>Retrieve XOF reader and reset hasher instance state.</p>
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</div></details></div><h2 id="provided-methods" class="small-section-header">Provided methods<a href="#provided-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="method.finalize_boxed" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/digest/xof.rs.html#47-51" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.finalize_boxed" class="fnname">finalize_boxed</a>(self, n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="https://doc.rust-lang.org/1.59.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">]</a>></h4></div></summary><div class="docblock"><p>Retrieve result into a boxed slice of the specified size and consume
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the hasher.</p>
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<p><code>Box<[u8]></code> is used instead of <code>Vec<u8></code> to save stack space, since
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they have size of 2 and 3 words respectively.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="method.finalize_boxed_reset" class="method has-srclink"><div class="rightside"><a class="srclink" href="../src/digest/xof.rs.html#60-64" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.finalize_boxed_reset" class="fnname">finalize_boxed_reset</a>(&mut self, n: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="https://doc.rust-lang.org/1.59.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">[</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.slice.html">]</a>></h4></div></summary><div class="docblock"><p>Retrieve result into a boxed slice of the specified size and reset
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the hasher’s state.</p>
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<p><code>Box<[u8]></code> is used instead of <code>Vec<u8></code> to save stack space, since
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they have size of 2 and 3 words respectively.</p>
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</div></details></div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-ExtendableOutput" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../src/digest/xof.rs.html#88-102" title="goto source code">[src]</a></div><a href="#impl-ExtendableOutput" class="anchor"></a><h3 class="code-header in-band">impl<X: <a class="trait" href="trait.ExtendableOutputDirty.html" title="trait digest::ExtendableOutputDirty">ExtendableOutputDirty</a> + <a class="trait" href="trait.Reset.html" title="trait digest::Reset">Reset</a>> <a class="trait" href="trait.ExtendableOutput.html" title="trait digest::ExtendableOutput">ExtendableOutput</a> for X</h3></div></summary><div class="impl-items"><div id="associatedtype.Reader-1" class="type trait-impl has-srclink"><a href="#associatedtype.Reader-1" class="anchor"></a><h4 class="code-header">type <a href="#associatedtype.Reader" class="associatedtype">Reader</a> = X::<a class="associatedtype" href="trait.ExtendableOutputDirty.html#associatedtype.Reader" title="type digest::ExtendableOutputDirty::Reader">Reader</a></h4></div></div></details></div><script type="text/javascript" src="../implementors/digest/trait.ExtendableOutput.js" async></script></section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="digest" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.59.0 (9d1b2106e 2022-02-23)" ></div>
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