| <!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/arithmetic/montgomery.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>montgomery.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 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. |
| |
| // Indicates that the element is not encoded; there is no *R* factor |
| // that needs to be canceled out. |
| </span><span class="attribute">#[derive(Copy, Clone)] |
| </span><span class="kw">pub enum </span>Unencoded {} |
| |
| <span class="comment">// Indicates that the element is encoded; the value has one *R* |
| // factor that needs to be canceled out. |
| </span><span class="attribute">#[derive(Copy, Clone)] |
| </span><span class="kw">pub enum </span>R {} |
| |
| <span class="comment">// Indicates the element is encoded twice; the value has two *R* |
| // factors that need to be canceled out. |
| </span><span class="attribute">#[derive(Copy, Clone)] |
| </span><span class="kw">pub enum </span>RR {} |
| |
| <span class="comment">// Indicates the element is inversely encoded; the value has one |
| // 1/*R* factor that needs to be canceled out. |
| </span><span class="attribute">#[derive(Copy, Clone)] |
| </span><span class="kw">pub enum </span>RInverse {} |
| |
| <span class="kw">pub trait </span>Encoding {} |
| |
| <span class="kw">impl </span>Encoding <span class="kw">for </span>RR {} |
| <span class="kw">impl </span>Encoding <span class="kw">for </span>R {} |
| <span class="kw">impl </span>Encoding <span class="kw">for </span>Unencoded {} |
| <span class="kw">impl </span>Encoding <span class="kw">for </span>RInverse {} |
| |
| <span class="doccomment">/// The encoding of the result of a reduction. |
| </span><span class="kw">pub trait </span>ReductionEncoding { |
| <span class="kw">type </span>Output: Encoding; |
| } |
| |
| <span class="kw">impl </span>ReductionEncoding <span class="kw">for </span>RR { |
| <span class="kw">type </span>Output = R; |
| } |
| <span class="kw">impl </span>ReductionEncoding <span class="kw">for </span>R { |
| <span class="kw">type </span>Output = Unencoded; |
| } |
| <span class="kw">impl </span>ReductionEncoding <span class="kw">for </span>Unencoded { |
| <span class="kw">type </span>Output = RInverse; |
| } |
| |
| <span class="doccomment">/// The encoding of the result of a multiplication. |
| </span><span class="kw">pub trait </span>ProductEncoding { |
| <span class="kw">type </span>Output: Encoding; |
| } |
| |
| <span class="kw">impl</span><E: ReductionEncoding> ProductEncoding <span class="kw">for </span>(Unencoded, E) { |
| <span class="kw">type </span>Output = E::Output; |
| } |
| |
| <span class="kw">impl</span><E: Encoding> ProductEncoding <span class="kw">for </span>(R, E) { |
| <span class="kw">type </span>Output = E; |
| } |
| |
| <span class="kw">impl</span><E: ReductionEncoding> ProductEncoding <span class="kw">for </span>(RInverse, E) |
| <span class="kw">where |
| </span>E::Output: ReductionEncoding, |
| { |
| <span class="kw">type </span>Output = <<E <span class="kw">as </span>ReductionEncoding>::Output <span class="kw">as </span>ReductionEncoding>::Output; |
| } |
| |
| <span class="comment">// XXX: Rust doesn't allow overlapping impls, |
| // TODO (if/when Rust allows it): |
| // impl<E1, E2: ReductionEncoding> ProductEncoding for |
| // (E1, E2) { |
| // type Output = <(E2, E1) as ProductEncoding>::Output; |
| // } |
| </span><span class="kw">impl </span>ProductEncoding <span class="kw">for </span>(RR, Unencoded) { |
| <span class="kw">type </span>Output = <(Unencoded, RR) <span class="kw">as </span>ProductEncoding>::Output; |
| } |
| <span class="kw">impl </span>ProductEncoding <span class="kw">for </span>(RR, RInverse) { |
| <span class="kw">type </span>Output = <(RInverse, RR) <span class="kw">as </span>ProductEncoding>::Output; |
| } |
| </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> |