| <!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/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/src/ec/suite_b/ops/p384.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>p384.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 2016 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 super</span>::{ |
| elem::{binary_op, binary_op_assign}, |
| elem_sqr_mul, elem_sqr_mul_acc, Modulus, <span class="kw-2">*</span>, |
| }; |
| <span class="kw">use </span>core::marker::PhantomData; |
| |
| <span class="macro">macro_rules! </span>p384_limbs { |
| [$(<span class="macro-nonterminal">$limb</span>:expr),+] => { |
| <span class="macro">limbs!</span>[$(<span class="macro-nonterminal">$limb</span>),+] |
| }; |
| } |
| |
| <span class="kw">pub static </span>COMMON_OPS: CommonOps = CommonOps { |
| num_limbs: <span class="number">384 </span>/ LIMB_BITS, |
| |
| q: Modulus { |
| p: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0xffffffff</span>, <span class="number">0x00000000</span>, <span class="number">0x00000000</span>, <span class="number">0xffffffff</span>, <span class="number">0xfffffffe</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, |
| <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff |
| </span>], |
| rr: <span class="macro">p384_limbs!</span>[<span class="number">1</span>, <span class="number">0xfffffffe</span>, <span class="number">0</span>, <span class="number">2</span>, <span class="number">0</span>, <span class="number">0xfffffffe</span>, <span class="number">0</span>, <span class="number">2</span>, <span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>], |
| }, |
| n: Elem { |
| limbs: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0xccc52973</span>, <span class="number">0xecec196a</span>, <span class="number">0x48b0a77a</span>, <span class="number">0x581a0db2</span>, <span class="number">0xf4372ddf</span>, <span class="number">0xc7634d81</span>, <span class="number">0xffffffff</span>, |
| <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff |
| </span>], |
| m: PhantomData, |
| encoding: PhantomData, <span class="comment">// Unencoded |
| </span>}, |
| |
| a: Elem { |
| limbs: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0xfffffffc</span>, <span class="number">0x00000003</span>, <span class="number">0x00000000</span>, <span class="number">0xfffffffc</span>, <span class="number">0xfffffffb</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, |
| <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff</span>, <span class="number">0xffffffff |
| </span>], |
| m: PhantomData, |
| encoding: PhantomData, <span class="comment">// Unreduced |
| </span>}, |
| b: Elem { |
| limbs: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0x9d412dcc</span>, <span class="number">0x08118871</span>, <span class="number">0x7a4c32ec</span>, <span class="number">0xf729add8</span>, <span class="number">0x1920022e</span>, <span class="number">0x77f2209b</span>, <span class="number">0x94938ae2</span>, |
| <span class="number">0xe3374bee</span>, <span class="number">0x1f022094</span>, <span class="number">0xb62b21f4</span>, <span class="number">0x604fbff9</span>, <span class="number">0xcd08114b |
| </span>], |
| m: PhantomData, |
| encoding: PhantomData, <span class="comment">// Unreduced |
| </span>}, |
| |
| elem_add_impl: GFp_p384_elem_add, |
| elem_mul_mont: GFp_p384_elem_mul_mont, |
| elem_sqr_mont: GFp_p384_elem_sqr_mont, |
| |
| point_add_jacobian_impl: GFp_nistz384_point_add, |
| }; |
| |
| <span class="kw">pub static </span>PRIVATE_KEY_OPS: PrivateKeyOps = PrivateKeyOps { |
| common: <span class="kw-2">&</span>COMMON_OPS, |
| elem_inv_squared: p384_elem_inv_squared, |
| point_mul_base_impl: p384_point_mul_base_impl, |
| point_mul_impl: GFp_nistz384_point_mul, |
| }; |
| |
| <span class="kw">fn </span>p384_elem_inv_squared(a: <span class="kw-2">&</span>Elem<R>) -> Elem<R> { |
| <span class="comment">// Calculate a**-2 (mod q) == a**(q - 3) (mod q) |
| // |
| // The exponent (q - 3) is: |
| // |
| // 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe\ |
| // ffffffff0000000000000000fffffffc |
| |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">fn </span>sqr_mul(a: <span class="kw-2">&</span>Elem<R>, squarings: usize, b: <span class="kw-2">&</span>Elem<R>) -> Elem<R> { |
| elem_sqr_mul(<span class="kw-2">&</span>COMMON_OPS, a, squarings, b) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>sqr_mul_acc(a: <span class="kw-2">&mut </span>Elem<R>, squarings: usize, b: <span class="kw-2">&</span>Elem<R>) { |
| elem_sqr_mul_acc(<span class="kw-2">&</span>COMMON_OPS, a, squarings, b) |
| } |
| |
| <span class="kw">let </span>b_1 = <span class="kw-2">&</span>a; |
| <span class="kw">let </span>b_11 = sqr_mul(b_1, <span class="number">1</span>, b_1); |
| <span class="kw">let </span>b_111 = sqr_mul(<span class="kw-2">&</span>b_11, <span class="number">1</span>, b_1); |
| <span class="kw">let </span>f_11 = sqr_mul(<span class="kw-2">&</span>b_111, <span class="number">3</span>, <span class="kw-2">&</span>b_111); |
| <span class="kw">let </span>fff = sqr_mul(<span class="kw-2">&</span>f_11, <span class="number">6</span>, <span class="kw-2">&</span>f_11); |
| <span class="kw">let </span>fff_111 = sqr_mul(<span class="kw-2">&</span>fff, <span class="number">3</span>, <span class="kw-2">&</span>b_111); |
| <span class="kw">let </span>fffffff_11 = sqr_mul(<span class="kw-2">&</span>fff_111, <span class="number">15</span>, <span class="kw-2">&</span>fff_111); |
| |
| <span class="kw">let </span>fffffffffffffff = sqr_mul(<span class="kw-2">&</span>fffffff_11, <span class="number">30</span>, <span class="kw-2">&</span>fffffff_11); |
| |
| <span class="kw">let </span>ffffffffffffffffffffffffffffff = sqr_mul(<span class="kw-2">&</span>fffffffffffffff, <span class="number">60</span>, <span class="kw-2">&</span>fffffffffffffff); |
| |
| <span class="comment">// ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff |
| </span><span class="kw">let </span><span class="kw-2">mut </span>acc = sqr_mul( |
| <span class="kw-2">&</span>ffffffffffffffffffffffffffffff, |
| <span class="number">120</span>, |
| <span class="kw-2">&</span>ffffffffffffffffffffffffffffff, |
| ); |
| |
| <span class="comment">// fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff_111 |
| </span>sqr_mul_acc(<span class="kw-2">&mut </span>acc, <span class="number">15</span>, <span class="kw-2">&</span>fff_111); |
| |
| <span class="comment">// fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff |
| </span>sqr_mul_acc(<span class="kw-2">&mut </span>acc, <span class="number">1 </span>+ <span class="number">30</span>, <span class="kw-2">&</span>fffffff_11); |
| sqr_mul_acc(<span class="kw-2">&mut </span>acc, <span class="number">2</span>, <span class="kw-2">&</span>b_11); |
| |
| <span class="comment">// fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff |
| // 0000000000000000fffffff_11 |
| </span>sqr_mul_acc(<span class="kw-2">&mut </span>acc, <span class="number">64 </span>+ <span class="number">30</span>, <span class="kw-2">&</span>fffffff_11); |
| |
| <span class="comment">// fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffff |
| // 0000000000000000fffffffc |
| </span>COMMON_OPS.elem_square(<span class="kw-2">&mut </span>acc); |
| COMMON_OPS.elem_square(<span class="kw-2">&mut </span>acc); |
| |
| acc |
| } |
| |
| <span class="kw">fn </span>p384_point_mul_base_impl(a: <span class="kw-2">&</span>Scalar) -> Point { |
| <span class="comment">// XXX: Not efficient. TODO: Precompute multiples of the generator. |
| </span><span class="kw">static </span>GENERATOR: (Elem<R>, Elem<R>) = ( |
| Elem { |
| limbs: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0x49c0b528</span>, <span class="number">0x3dd07566</span>, <span class="number">0xa0d6ce38</span>, <span class="number">0x20e378e2</span>, <span class="number">0x541b4d6e</span>, <span class="number">0x879c3afc</span>, <span class="number">0x59a30eff</span>, |
| <span class="number">0x64548684</span>, <span class="number">0x614ede2b</span>, <span class="number">0x812ff723</span>, <span class="number">0x299e1513</span>, <span class="number">0x4d3aadc2 |
| </span>], |
| m: PhantomData, |
| encoding: PhantomData, |
| }, |
| Elem { |
| limbs: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0x4b03a4fe</span>, <span class="number">0x23043dad</span>, <span class="number">0x7bb4a9ac</span>, <span class="number">0xa1bfa8bf</span>, <span class="number">0x2e83b050</span>, <span class="number">0x8bade756</span>, <span class="number">0x68f4ffd9</span>, |
| <span class="number">0xc6c35219</span>, <span class="number">0x3969a840</span>, <span class="number">0xdd800226</span>, <span class="number">0x5a15c5e9</span>, <span class="number">0x2b78abc2 |
| </span>], |
| m: PhantomData, |
| encoding: PhantomData, |
| }, |
| ); |
| |
| PRIVATE_KEY_OPS.point_mul(a, <span class="kw-2">&</span>GENERATOR) |
| } |
| |
| <span class="kw">pub static </span>PUBLIC_KEY_OPS: PublicKeyOps = PublicKeyOps { |
| common: <span class="kw-2">&</span>COMMON_OPS, |
| }; |
| |
| <span class="kw">pub static </span>SCALAR_OPS: ScalarOps = ScalarOps { |
| common: <span class="kw-2">&</span>COMMON_OPS, |
| scalar_inv_to_mont_impl: p384_scalar_inv_to_mont, |
| scalar_mul_mont: GFp_p384_scalar_mul_mont, |
| }; |
| |
| <span class="kw">pub static </span>PUBLIC_SCALAR_OPS: PublicScalarOps = PublicScalarOps { |
| scalar_ops: <span class="kw-2">&</span>SCALAR_OPS, |
| public_key_ops: <span class="kw-2">&</span>PUBLIC_KEY_OPS, |
| private_key_ops: <span class="kw-2">&</span>PRIVATE_KEY_OPS, |
| |
| q_minus_n: Elem { |
| limbs: <span class="macro">p384_limbs!</span>[ |
| <span class="number">0x333ad68c</span>, <span class="number">0x1313e696</span>, <span class="number">0xb74f5885</span>, <span class="number">0xa7e5f24c</span>, <span class="number">0x0bc8d21f</span>, <span class="number">0x389cb27e</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>, |
| <span class="number">0 |
| </span>], |
| |
| m: PhantomData, |
| encoding: PhantomData, <span class="comment">// Unencoded |
| </span>}, |
| }; |
| |
| <span class="kw">pub static </span>PRIVATE_SCALAR_OPS: PrivateScalarOps = PrivateScalarOps { |
| scalar_ops: <span class="kw-2">&</span>SCALAR_OPS, |
| |
| oneRR_mod_n: Scalar { |
| limbs: N_RR_LIMBS, |
| m: PhantomData, |
| encoding: PhantomData, <span class="comment">// R |
| </span>}, |
| }; |
| |
| <span class="kw">fn </span>p384_scalar_inv_to_mont(a: <span class="kw-2">&</span>Scalar<Unencoded>) -> Scalar<R> { |
| <span class="comment">// Calculate the modular inverse of scalar |a| using Fermat's Little |
| // Theorem: |
| // |
| // a**-1 (mod n) == a**(n - 2) (mod n) |
| // |
| // The exponent (n - 2) is: |
| // |
| // 0xffffffffffffffffffffffffffffffffffffffffffffffffc7634d81f4372ddf\ |
| // 581a0db248b0a77aecec196accc52971. |
| |
| </span><span class="kw">fn </span>mul(a: <span class="kw-2">&</span>Scalar<R>, b: <span class="kw-2">&</span>Scalar<R>) -> Scalar<R> { |
| binary_op(GFp_p384_scalar_mul_mont, a, b) |
| } |
| |
| <span class="kw">fn </span>sqr(a: <span class="kw-2">&</span>Scalar<R>) -> Scalar<R> { |
| binary_op(GFp_p384_scalar_mul_mont, a, a) |
| } |
| |
| <span class="kw">fn </span>sqr_mut(a: <span class="kw-2">&mut </span>Scalar<R>) { |
| unary_op_from_binary_op_assign(GFp_p384_scalar_mul_mont, a); |
| } |
| |
| <span class="comment">// Returns (`a` squared `squarings` times) * `b`. |
| </span><span class="kw">fn </span>sqr_mul(a: <span class="kw-2">&</span>Scalar<R>, squarings: usize, b: <span class="kw-2">&</span>Scalar<R>) -> Scalar<R> { |
| <span class="macro">debug_assert!</span>(squarings >= <span class="number">1</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>tmp = sqr(a); |
| <span class="kw">for _ in </span><span class="number">1</span>..squarings { |
| sqr_mut(<span class="kw-2">&mut </span>tmp); |
| } |
| mul(<span class="kw-2">&</span>tmp, b) |
| } |
| |
| <span class="comment">// Sets `acc` = (`acc` squared `squarings` times) * `b`. |
| </span><span class="kw">fn </span>sqr_mul_acc(acc: <span class="kw-2">&mut </span>Scalar<R>, squarings: usize, b: <span class="kw-2">&</span>Scalar<R>) { |
| <span class="macro">debug_assert!</span>(squarings >= <span class="number">1</span>); |
| <span class="kw">for _ in </span><span class="number">0</span>..squarings { |
| sqr_mut(acc); |
| } |
| binary_op_assign(GFp_p384_scalar_mul_mont, acc, b) |
| } |
| |
| <span class="kw">fn </span>to_mont(a: <span class="kw-2">&</span>Scalar<Unencoded>) -> Scalar<R> { |
| <span class="kw">static </span>N_RR: Scalar<Unencoded> = Scalar { |
| limbs: N_RR_LIMBS, |
| m: PhantomData, |
| encoding: PhantomData, |
| }; |
| binary_op(GFp_p384_scalar_mul_mont, a, <span class="kw-2">&</span>N_RR) |
| } |
| |
| <span class="comment">// Indexes into `d`. |
| </span><span class="kw">const </span>B_1: usize = <span class="number">0</span>; |
| <span class="kw">const </span>B_11: usize = <span class="number">1</span>; |
| <span class="kw">const </span>B_101: usize = <span class="number">2</span>; |
| <span class="kw">const </span>B_111: usize = <span class="number">3</span>; |
| <span class="kw">const </span>B_1001: usize = <span class="number">4</span>; |
| <span class="kw">const </span>B_1011: usize = <span class="number">5</span>; |
| <span class="kw">const </span>B_1101: usize = <span class="number">6</span>; |
| <span class="kw">const </span>B_1111: usize = <span class="number">7</span>; |
| <span class="kw">const </span>DIGIT_COUNT: usize = <span class="number">8</span>; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>d = [Scalar::zero(); DIGIT_COUNT]; |
| d[B_1] = to_mont(a); |
| <span class="kw">let </span>b_10 = sqr(<span class="kw-2">&</span>d[B_1]); |
| <span class="kw">for </span>i <span class="kw">in </span>B_11..DIGIT_COUNT { |
| d[i] = mul(<span class="kw-2">&</span>d[i - <span class="number">1</span>], <span class="kw-2">&</span>b_10); |
| } |
| |
| <span class="kw">let </span>ff = sqr_mul(<span class="kw-2">&</span>d[B_1111], <span class="number">0 </span>+ <span class="number">4</span>, <span class="kw-2">&</span>d[B_1111]); |
| <span class="kw">let </span>ffff = sqr_mul(<span class="kw-2">&</span>ff, <span class="number">0 </span>+ <span class="number">8</span>, <span class="kw-2">&</span>ff); |
| <span class="kw">let </span>ffffffff = sqr_mul(<span class="kw-2">&</span>ffff, <span class="number">0 </span>+ <span class="number">16</span>, <span class="kw-2">&</span>ffff); |
| |
| <span class="kw">let </span>ffffffffffffffff = sqr_mul(<span class="kw-2">&</span>ffffffff, <span class="number">0 </span>+ <span class="number">32</span>, <span class="kw-2">&</span>ffffffff); |
| |
| <span class="kw">let </span>ffffffffffffffffffffffff = sqr_mul(<span class="kw-2">&</span>ffffffffffffffff, <span class="number">0 </span>+ <span class="number">32</span>, <span class="kw-2">&</span>ffffffff); |
| |
| <span class="comment">// ffffffffffffffffffffffffffffffffffffffffffffffff |
| </span><span class="kw">let </span><span class="kw-2">mut </span>acc = sqr_mul(<span class="kw-2">&</span>ffffffffffffffffffffffff, <span class="number">0 </span>+ <span class="number">96</span>, <span class="kw-2">&</span>ffffffffffffffffffffffff); |
| |
| <span class="comment">// The rest of the exponent, in binary, is: |
| // |
| // 1100011101100011010011011000000111110100001101110010110111011111 |
| // 0101100000011010000011011011001001001000101100001010011101111010 |
| // 1110110011101100000110010110101011001100110001010010100101110001 |
| |
| </span><span class="kw">static </span>REMAINING_WINDOWS: [(u8, u8); <span class="number">39</span>] = [ |
| (<span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">3 </span>+ <span class="number">3</span>, B_111 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">3 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">4</span>, B_1001 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">6 </span>+ <span class="number">4</span>, B_1111 <span class="kw">as </span>u8), |
| (<span class="number">3</span>, B_101 <span class="kw">as </span>u8), |
| (<span class="number">4 </span>+ <span class="number">1</span>, B_1 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1001 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">4</span>, B_1101 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1101 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1111 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">6 </span>+ <span class="number">4</span>, B_1101 <span class="kw">as </span>u8), |
| (<span class="number">5 </span>+ <span class="number">4</span>, B_1101 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">4</span>, B_1001 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">1</span>, B_1 <span class="kw">as </span>u8), |
| (<span class="number">3 </span>+ <span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">4 </span>+ <span class="number">3</span>, B_101 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">3</span>, B_111 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">4</span>, B_1111 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">3</span>, B_111 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">5 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">4</span>, B_1011 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">3</span>, B_101 <span class="kw">as </span>u8), |
| (<span class="number">1 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">3 </span>+ <span class="number">3</span>, B_101 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">3</span>, B_101 <span class="kw">as </span>u8), |
| (<span class="number">2 </span>+ <span class="number">3</span>, B_101 <span class="kw">as </span>u8), |
| (<span class="number">2</span>, B_11 <span class="kw">as </span>u8), |
| (<span class="number">3 </span>+ <span class="number">1</span>, B_1 <span class="kw">as </span>u8), |
| ]; |
| |
| <span class="kw">for </span><span class="kw-2">&</span>(squarings, digit) <span class="kw">in </span><span class="kw-2">&</span>REMAINING_WINDOWS[..] { |
| sqr_mul_acc(<span class="kw-2">&mut </span>acc, usize::from(squarings), <span class="kw-2">&</span>d[usize::from(digit)]); |
| } |
| |
| acc |
| } |
| |
| <span class="kw">unsafe extern </span><span class="string">"C" </span><span class="kw">fn </span>GFp_p384_elem_sqr_mont( |
| r: <span class="kw-2">*mut </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>a: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>) { |
| <span class="comment">// XXX: Inefficient. TODO: Make a dedicated squaring routine. |
| </span>GFp_p384_elem_mul_mont(r, a, a); |
| } |
| |
| <span class="kw">const </span>N_RR_LIMBS: [Limb; MAX_LIMBS] = <span class="macro">p384_limbs!</span>[ |
| <span class="number">0x19b409a9</span>, <span class="number">0x2d319b24</span>, <span class="number">0xdf1aa419</span>, <span class="number">0xff3d81e5</span>, <span class="number">0xfcb82947</span>, <span class="number">0xbc3e483a</span>, <span class="number">0x4aab1cc5</span>, <span class="number">0xd40d4917</span>, |
| <span class="number">0x28266895</span>, <span class="number">0x3fb05b7a</span>, <span class="number">0x2b39bf21</span>, <span class="number">0x0c84ee01 |
| </span>]; |
| |
| <span class="kw">extern </span><span class="string">"C" </span>{ |
| <span class="kw">fn </span>GFp_p384_elem_add( |
| r: <span class="kw-2">*mut </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>a: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>b: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>); |
| <span class="kw">fn </span>GFp_p384_elem_mul_mont( |
| r: <span class="kw-2">*mut </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>a: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>b: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>); |
| |
| <span class="kw">fn </span>GFp_nistz384_point_add( |
| r: <span class="kw-2">*mut </span>Limb, <span class="comment">// [3][COMMON_OPS.num_limbs] |
| </span>a: <span class="kw-2">*const </span>Limb, <span class="comment">// [3][COMMON_OPS.num_limbs] |
| </span>b: <span class="kw-2">*const </span>Limb, <span class="comment">// [3][COMMON_OPS.num_limbs] |
| </span>); |
| <span class="kw">fn </span>GFp_nistz384_point_mul( |
| r: <span class="kw-2">*mut </span>Limb, <span class="comment">// [3][COMMON_OPS.num_limbs] |
| </span>p_scalar: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>p_x: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>p_y: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>); |
| |
| <span class="kw">fn </span>GFp_p384_scalar_mul_mont( |
| r: <span class="kw-2">*mut </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>a: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>b: <span class="kw-2">*const </span>Limb, <span class="comment">// [COMMON_OPS.num_limbs] |
| </span>); |
| } |
| </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> |
