| <!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="Source of the Rust file `/root/.cargo/git/checkouts/incubator-teaclave-crates-c8106113f74feefc/ede1f68/ring/src/ec/suite_b/curve.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>curve.rs - source</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" href="../../../../normalize.css"><link rel="stylesheet" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../dark.css" disabled><link rel="stylesheet" href="../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../storage.js"></script><script defer src="../../../../source-script.js"></script><script defer src="../../../../source-files.js"></script><script defer src="../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../ring/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../ring/index.html"><img class="rust-logo" src="../../../../rust-logo.svg" alt="logo"></a><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"><div id="help-button" title="help" tabindex="-1"><a href="../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="comment">// Copyright 2015-2017 Brian Smith. |
| // |
| // Permission to use, copy, modify, and/or distribute this software for any |
| // purpose with or without fee is hereby granted, provided that the above |
| // copyright notice and this permission notice appear in all copies. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES |
| // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY |
| // SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| // OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
| </span><span class="kw">use crate</span>::{ec, error, rand}; |
| |
| <span class="doccomment">/// A key agreement algorithm. |
| </span><span class="macro">macro_rules! </span>suite_b_curve { |
| ( <span class="macro-nonterminal">$NAME</span>:ident, <span class="macro-nonterminal">$bits</span>:expr, <span class="macro-nonterminal">$private_key_ops</span>:expr, <span class="macro-nonterminal">$id</span>:expr, |
| <span class="macro-nonterminal">$check_private_key_bytes</span>:ident, <span class="macro-nonterminal">$generate_private_key</span>:ident, |
| <span class="macro-nonterminal">$public_from_private</span>:ident) => { |
| <span class="doccomment">/// Public keys are encoding in uncompressed form using the |
| /// Octet-String-to-Elliptic-Curve-Point algorithm in |
| /// [SEC 1: Elliptic Curve Cryptography, Version 2.0]. Public keys are |
| /// validated during key agreement according to |
| /// [NIST Special Publication 800-56A, revision 2] and Appendix B.3 of |
| /// the NSA's [Suite B Implementer's Guide to NIST SP 800-56A]. |
| /// |
| /// [SEC 1: Elliptic Curve Cryptography, Version 2.0]: |
| /// http://www.secg.org/sec1-v2.pdf |
| /// [NIST Special Publication 800-56A, revision 2]: |
| /// http://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-56Ar2.pdf |
| /// [Suite B Implementer's Guide to NIST SP 800-56A]: |
| /// https://github.com/briansmith/ring/blob/main/doc/ecdh.pdf |
| </span><span class="kw">pub static </span><span class="macro-nonterminal">$NAME</span>: ec::Curve = ec::Curve { |
| public_key_len: <span class="number">1 </span>+ (<span class="number">2 </span>* ((<span class="macro-nonterminal">$bits </span>+ <span class="number">7</span>) / <span class="number">8</span>)), |
| elem_scalar_seed_len: (<span class="macro-nonterminal">$bits </span>+ <span class="number">7</span>) / <span class="number">8</span>, |
| id: <span class="macro-nonterminal">$id</span>, |
| check_private_key_bytes: <span class="macro-nonterminal">$check_private_key_bytes</span>, |
| generate_private_key: <span class="macro-nonterminal">$generate_private_key</span>, |
| public_from_private: <span class="macro-nonterminal">$public_from_private</span>, |
| }; |
| |
| <span class="kw">fn </span><span class="macro-nonterminal">$check_private_key_bytes</span>(bytes: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><(), error::Unspecified> { |
| <span class="macro">debug_assert_eq!</span>(bytes.len(), <span class="macro-nonterminal">$bits </span>/ <span class="number">8</span>); |
| ec::suite_b::private_key::check_scalar_big_endian_bytes(<span class="macro-nonterminal">$private_key_ops</span>, bytes) |
| } |
| |
| <span class="kw">fn </span><span class="macro-nonterminal">$generate_private_key</span>( |
| rng: <span class="kw-2">&</span><span class="kw">dyn </span>rand::SecureRandom, |
| out: <span class="kw-2">&mut </span>[u8], |
| ) -> <span class="prelude-ty">Result</span><(), error::Unspecified> { |
| ec::suite_b::private_key::generate_private_scalar_bytes(<span class="macro-nonterminal">$private_key_ops</span>, rng, out) |
| } |
| |
| <span class="kw">fn </span><span class="macro-nonterminal">$public_from_private</span>( |
| public_out: <span class="kw-2">&mut </span>[u8], |
| private_key: <span class="kw-2">&</span>ec::Seed, |
| ) -> <span class="prelude-ty">Result</span><(), error::Unspecified> { |
| ec::suite_b::private_key::public_from_private(<span class="macro-nonterminal">$private_key_ops</span>, public_out, private_key) |
| } |
| }; |
| } |
| |
| <span class="macro">suite_b_curve!</span>( |
| P256, |
| <span class="number">256</span>, |
| <span class="kw-2">&</span>ec::suite_b::ops::p256::PRIVATE_KEY_OPS, |
| ec::CurveID::P256, |
| p256_check_private_key_bytes, |
| p256_generate_private_key, |
| p256_public_from_private |
| ); |
| |
| <span class="macro">suite_b_curve!</span>( |
| P384, |
| <span class="number">384</span>, |
| <span class="kw-2">&</span>ec::suite_b::ops::p384::PRIVATE_KEY_OPS, |
| ec::CurveID::P384, |
| p384_check_private_key_bytes, |
| p384_generate_private_key, |
| p384_public_from_private |
| ); |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="ring" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
