21 lines
8.5 KiB
HTML
21 lines
8.5 KiB
HTML
<!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="API documentation for the Rust `CryptoRng` trait in crate `rand_core`."><meta name="keywords" content="rust, rustlang, rust-lang, CryptoRng"><title>rand_core::CryptoRng - Rust</title><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="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="https://www.rust-lang.org/favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../rand_core/index.html'><div class='logo-container'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk.png' alt='logo'></div></a><p class='location'>Trait CryptoRng</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-CryptoRng-for-%26%27a%20mut%20R">&'a mut R</a><a href="#impl-CryptoRng-for-Box%3CR%3E">Box<R></a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>rand_core</a></p><script>window.sidebarCurrent = {name: 'CryptoRng', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><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><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><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/rand_core/lib.rs.html#209' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='index.html'>rand_core</a>::<wbr><a class="trait" href=''>CryptoRng</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub trait CryptoRng { }</pre></div><div class='docblock'><p>A marker trait used to indicate that an [<code>RngCore</code>] or <a href="block::BlockRngCore"><code>BlockRngCore</code></a>
|
||
implementation is supposed to be cryptographically secure.</p>
|
||
<p><em>Cryptographically secure generators</em>, also known as <em>CSPRNGs</em>, should
|
||
satisfy an additional properties over other generators: given the first
|
||
<em>k</em> bits of an algorithm's output
|
||
sequence, it should not be possible using polynomial-time algorithms to
|
||
predict the next bit with probability significantly greater than 50%.</p>
|
||
<p>Some generators may satisfy an additional property, however this is not
|
||
required by this trait: if the CSPRNG's state is revealed, it should not be
|
||
computationally-feasible to reconstruct output prior to this. Some other
|
||
generators allow backwards-computation and are consided <em>reversible</em>.</p>
|
||
<p>Note that this trait is provided for guidance only and cannot guarantee
|
||
suitability for cryptographic applications. In general it should only be
|
||
implemented for well-reviewed code implementing well-regarded algorithms.</p>
|
||
<p>Note also that use of a <code>CryptoRng</code> does not protect against other
|
||
weaknesses such as seeding from a weak entropy source or leaking state.</p>
|
||
</div>
|
||
<h2 id='foreign-impls' class='small-section-header'>Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a></h2><h3 id='impl-CryptoRng-for-%26%27a%20mut%20R' class='impl'><code class='in-band'>impl<'a, R: <a class="trait" href="../rand_core/trait.CryptoRng.html" title="trait rand_core::CryptoRng">CryptoRng</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>> <a class="trait" href="../rand_core/trait.CryptoRng.html" title="trait rand_core::CryptoRng">CryptoRng</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a mut </a>R</code><a href='#impl-CryptoRng-for-%26%27a%20mut%20R' class='anchor'></a><a class='srclink' href='../src/rand_core/lib.rs.html#446' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-CryptoRng-for-Box%3CR%3E' class='impl'><code class='in-band'>impl<R: <a class="trait" href="../rand_core/trait.CryptoRng.html" title="trait rand_core::CryptoRng">CryptoRng</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>> <a class="trait" href="../rand_core/trait.CryptoRng.html" title="trait rand_core::CryptoRng">CryptoRng</a> for <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><R></code><a href='#impl-CryptoRng-for-Box%3CR%3E' class='anchor'></a><a class='srclink' href='../src/rand_core/lib.rs.html#450' title='goto source code'>[src]</a></h3><div class='impl-items'></div><span class='loading-content'>Loading content...</span>
|
||
<h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><div class='item-list' id='implementors-list'><h3 id='impl-CryptoRng' class='impl'><code class='in-band'>impl<R: <a class="trait" href="../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a> + <a class="trait" href="../rand_core/trait.CryptoRng.html" title="trait rand_core::CryptoRng">CryptoRng</a>> CryptoRng for <a class="struct" href="../rand_core/block/struct.BlockRng.html" title="struct rand_core::block::BlockRng">BlockRng</a><R></code><a href='#impl-CryptoRng' class='anchor'></a><a class='srclink' href='../src/rand_core/block.rs.html#433' title='goto source code'>[src]</a></h3><div class='impl-items'></div></div><span class='loading-content'>Loading content...</span><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
|
||
src="../implementors/rand_core/trait.CryptoRng.js">
|
||
</script></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g., <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g., <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g., <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "rand_core";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html> |