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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="API documentation for the Rust `RsaKeyPair` struct in crate `ring`."><meta name="keywords" content="rust, rustlang, rust-lang, RsaKeyPair"><title>ring::signature::RsaKeyPair - 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="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[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='../../ring/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct RsaKeyPair</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.from_der">from_der</a><a href="#method.from_pkcs8">from_pkcs8</a><a href="#method.public_modulus_len">public_modulus_len</a><a href="#method.sign">sign</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-KeyPair">KeyPair</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">ring</a>::<wbr><a href="index.html">signature</a></p><div id="sidebar-vars" data-name="RsaKeyPair" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><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" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<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="in-band">Struct <a href="../index.html">ring</a>::<wbr><a href="index.html">signature</a>::<wbr><a class="struct" href="">RsaKeyPair</a></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/ring/rsa/signing.rs.html#30-38" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct RsaKeyPair { /* fields omitted */ }</pre></div><div class="docblock"><p>An RSA key pair, used for signing.</p>
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</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/ring/rsa/signing.rs.html#42-386" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_pkcs8" class="method"><code>pub fn <a href="#method.from_pkcs8" class="fnname">from_pkcs8</a>(pkcs8: &[u8]) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self, <a class="struct" href="../../ring/error/struct.KeyRejected.html" title="struct ring::error::KeyRejected">KeyRejected</a>></code><a class="srclink" href="../../src/ring/rsa/signing.rs.html#139-147" title="goto source code">[src]</a></h4><div class="docblock"><p>Parses an unencrypted PKCS#8-encoded RSA private key.</p>
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<p>Only two-prime (not multi-prime) keys are supported. The public modulus
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(n) must be at least 2047 bits. The public modulus must be no larger
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than 4096 bits. It is recommended that the public modulus be exactly
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2048 or 3072 bits. The public exponent must be at least 65537.</p>
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<p>This will generate a 2048-bit RSA private key of the correct form using
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OpenSSL's command line tool:</p>
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<pre><code class="language-sh"> openssl genpkey -algorithm RSA \
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-pkeyopt rsa_keygen_bits:2048 \
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-pkeyopt rsa_keygen_pubexp:65537 | \
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openssl pkcs8 -topk8 -nocrypt -outform der > rsa-2048-private-key.pk8
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</code></pre>
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<p>This will generate a 3072-bit RSA private key of the correct form:</p>
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<pre><code class="language-sh"> openssl genpkey -algorithm RSA \
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-pkeyopt rsa_keygen_bits:3072 \
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-pkeyopt rsa_keygen_pubexp:65537 | \
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openssl pkcs8 -topk8 -nocrypt -outform der > rsa-3072-private-key.pk8
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</code></pre>
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<p>Often, keys generated for use in OpenSSL-based software are stored in
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the Base64 “PEM” format without the PKCS#8 wrapper. Such keys can be
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converted to binary PKCS#8 form using the OpenSSL command line tool like
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this:</p>
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<pre><code class="language-sh">openssl pkcs8 -topk8 -nocrypt -outform der \
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-in rsa-2048-private-key.pem > rsa-2048-private-key.pk8
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</code></pre>
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<p>Base64 (“PEM”) PKCS#8-encoded keys can be converted to the binary PKCS#8
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form like this:</p>
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<pre><code class="language-sh">openssl pkcs8 -nocrypt -outform der \
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-in rsa-2048-private-key.pem > rsa-2048-private-key.pk8
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</code></pre>
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<p>The private key is validated according to <a href="http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-56Br1.pdf">NIST SP-800-56B rev. 1</a>
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section 6.4.1.4.3, crt_pkv (Intended Exponent-Creation Method Unknown),
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with the following exceptions:</p>
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<ul>
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<li>
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<p>Section 6.4.1.2.1, Step 1: Neither a target security level nor an
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expected modulus length is provided as a parameter, so checks
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regarding these expectations are not done.</p>
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</li>
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<li>
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<p>Section 6.4.1.2.1, Step 3: Since neither the public key nor the
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expected modulus length is provided as a parameter, the consistency
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check between these values and the private key's value of n isn't
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done.</p>
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</li>
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<li>
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<p>Section 6.4.1.2.1, Step 5: No primality tests are done, both for
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performance reasons and to avoid any side channels that such tests
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would provide.</p>
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</li>
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<li>
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<p>Section 6.4.1.2.1, Step 6, and 6.4.1.4.3, Step 7:</p>
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<ul>
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<li><em>ring</em> has a slightly looser lower bound for the values of <code>p</code>
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and <code>q</code> than what the NIST document specifies. This looser lower
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bound matches what most other crypto libraries do. The check might
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be tightened to meet NIST's requirements in the future. Similarly,
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the check that <code>p</code> and <code>q</code> are not too close together is skipped
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currently, but may be added in the future.</li>
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</ul>
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<ul>
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<li>The validity of the mathematical relationship of <code>dP</code>, <code>dQ</code>, <code>e</code>
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and <code>n</code> is verified only during signing. Some size checks of <code>d</code>,
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<code>dP</code> and <code>dQ</code> are performed at construction, but some NIST checks
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are skipped because they would be expensive and/or they would leak
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information through side channels. If a preemptive check of the
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consistency of <code>dP</code>, <code>dQ</code>, <code>e</code> and <code>n</code> with each other is
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necessary, that can be done by signing any message with the key
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pair.</li>
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</ul>
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<ul>
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<li><code>d</code> is not fully validated, neither at construction nor during
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signing. This is OK as far as <em>ring</em>'s usage of the key is
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concerned because <em>ring</em> never uses the value of <code>d</code> (<em>ring</em> always
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uses <code>p</code>, <code>q</code>, <code>dP</code> and <code>dQ</code> via the Chinese Remainder Theorem,
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instead). However, <em>ring</em>'s checks would not be sufficient for
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validating a key pair for use by some other system; that other
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system must check the value of <code>d</code> itself if <code>d</code> is to be used.</li>
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</ul>
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</li>
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</ul>
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<p>In addition to the NIST requirements, <em>ring</em> requires that <code>p > q</code> and
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that <code>e</code> must be no more than 33 bits.</p>
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<p>See <a href="https://tools.ietf.org/html/rfc5958">RFC 5958</a> and <a href="https://tools.ietf.org/html/rfc3447#appendix-A.1.2">RFC 3447 Appendix A.1.2</a> for more details of the
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encoding of the key.</p>
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</div><h4 id="method.from_der" class="method"><code>pub fn <a href="#method.from_der" class="fnname">from_der</a>(input: &[u8]) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self, <a class="struct" href="../../ring/error/struct.KeyRejected.html" title="struct ring::error::KeyRejected">KeyRejected</a>></code><a class="srclink" href="../../src/ring/rsa/signing.rs.html#164-173" title="goto source code">[src]</a></h4><div class="docblock"><p>Parses an RSA private key that is not inside a PKCS#8 wrapper.</p>
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<p>The private key must be encoded as a binary DER-encoded ASN.1
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<code>RSAPrivateKey</code> as described in <a href="https://tools.ietf.org/html/rfc3447#appendix-A.1.2">RFC 3447 Appendix A.1.2</a>). In all other
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respects, this is just like <code>from_pkcs8()</code>. See the documentation for
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<code>from_pkcs8()</code> for more details.</p>
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<p>It is recommended to use <code>from_pkcs8()</code> (with a PKCS#8-encoded key)
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instead.</p>
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</div><h4 id="method.public_modulus_len" class="method"><code>pub fn <a href="#method.public_modulus_len" class="fnname">public_modulus_len</a>(&self) -> usize</code><a class="srclink" href="../../src/ring/rsa/signing.rs.html#379-385" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the length in bytes of the key pair's public modulus.</p>
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<p>A signature has the same length as the public modulus.</p>
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</div></div><h3 id="impl-1" class="impl"><code class="in-band">impl <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl-1" class="anchor"></a><a class="srclink" href="../../src/ring/rsa/signing.rs.html#517-605" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.sign" class="method"><code>pub fn <a href="#method.sign" class="fnname">sign</a>(<br> &self, <br> padding_alg: &'static dyn <a class="trait" href="../../ring/signature/trait.RsaEncoding.html" title="trait ring::signature::RsaEncoding">RsaEncoding</a>, <br> rng: &dyn <a class="trait" href="../../ring/rand/trait.SecureRandom.html" title="trait ring::rand::SecureRandom">SecureRandom</a>, <br> msg: &[u8], <br> signature: &mut [u8]<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(), <a class="struct" href="../../ring/error/struct.Unspecified.html" title="struct ring::error::Unspecified">Unspecified</a>></code><a class="srclink" href="../../src/ring/rsa/signing.rs.html#534-604" title="goto source code">[src]</a></h4><div class="docblock"><p>Sign <code>msg</code>. <code>msg</code> is digested using the digest algorithm from
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<code>padding_alg</code> and the digest is then padded using the padding algorithm
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from <code>padding_alg</code>. The signature it written into <code>signature</code>;
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<code>signature</code>'s length must be exactly the length returned by
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<code>public_modulus_len()</code>. <code>rng</code> may be used to randomize the padding
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(e.g. for PSS).</p>
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<p>Many other crypto libraries have signing functions that takes a
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precomputed digest as input, instead of the message to digest. This
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function does <em>not</em> take a precomputed digest; instead, <code>sign</code>
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calculates the digest itself.</p>
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<p>Lots of effort has been made to make the signing operations close to
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constant time to protect the private key from side channel attacks. On
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x86-64, this is done pretty well, but not perfectly. On other
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platforms, it is done less perfectly.</p>
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</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Debug" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/ring/rsa/signing.rs.html#40" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(), <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>></code><a class="srclink" href="../../src/ring/rsa/signing.rs.html#40" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id="impl-KeyPair" class="impl"><code class="in-band">impl <a class="trait" href="../../ring/signature/trait.KeyPair.html" title="trait ring::signature::KeyPair">KeyPair</a> for <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl-KeyPair" class="anchor"></a><a class="srclink" href="../../src/ring/rsa/signing.rs.html#388-394" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.PublicKey" class="type"><code>type <a href="../../ring/signature/trait.KeyPair.html#associatedtype.PublicKey" class="type">PublicKey</a> = <a class="struct" href="../../ring/signature/struct.RsaSubjectPublicKey.html" title="struct ring::signature::RsaSubjectPublicKey">RsaSubjectPublicKey</a></code></h4><div class='docblock'><p>The type of the public key.</p>
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</div><h4 id="method.public_key" class="method hidden"><code>fn <a href="../../ring/signature/trait.KeyPair.html#tymethod.public_key" class="fnname">public_key</a>(&self) -> &Self::<a class="type" href="../../ring/signature/trait.KeyPair.html#associatedtype.PublicKey" title="type ring::signature::KeyPair::PublicKey">PublicKey</a></code><a class="srclink" href="../../src/ring/rsa/signing.rs.html#391-393" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>The public key for the key pair.</p>
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</div></div></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><h3 id="impl-Send" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl-Send" class="anchor"></a><a class="srclink" href="../../src/ring/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl-Sync" class="anchor"></a><a class="srclink" href="../../src/ring/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../../ring/signature/struct.RsaKeyPair.html" title="struct ring::signature::RsaKeyPair">RsaKeyPair</a></code><a href="#impl-Unpin" class="anchor"></a><a class="srclink" href="../../src/ring/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#207-211" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> &T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-218" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> &mut T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#215" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
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</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545-549" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#546" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#534-541" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#538" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#582-591" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#588" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#568-577" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#574" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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