| <!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/sunhe/incubator-teaclave/third_party/rust-sgx-sdk/sgx_crypto/src/aes/ccm.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>ccm.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="../../../sgx_crypto/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="../../../sgx_crypto/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">// Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| </span><span class="kw">use </span>core::array::TryFromSliceError; |
| <span class="kw">use </span>core::convert::{From, TryFrom, TryInto}; |
| <span class="kw">use </span>core::ptr; |
| <span class="kw">use </span>sgx_crypto_sys::<span class="kw-2">*</span>; |
| <span class="kw">use </span>sgx_types::error::{SgxResult, SgxStatus}; |
| <span class="kw">use </span>sgx_types::marker::{BytewiseEquality, ContiguousMemory}; |
| <span class="kw">use </span>sgx_types::memeq::ConstTimeEq; |
| <span class="kw">use </span>sgx_types::types::{ |
| AesHandle, AlignKey128bit, AlignMac128bit, Key128bit, Mac128bit, AESCCM_IV_SIZE, |
| }; |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub struct </span>AesCcm<A: AsRef<[u8]>> { |
| key: AlignKey128bit, |
| iv: Nonce, |
| aad: Aad<A>, |
| handle: AesHandle, |
| } |
| |
| <span class="kw">impl</span><A: AsRef<[u8]>> AesCcm<A> { |
| <span class="kw">pub fn </span>new(key: <span class="kw-2">&</span>Key128bit, iv: Nonce, aad: Aad<A>) -> SgxResult<AesCcm<A>> { |
| <span class="macro">ensure!</span>( |
| aad.as_ref().len() <= i32::MAX <span class="kw">as </span>usize, |
| SgxStatus::InvalidParameter |
| ); |
| |
| <span class="prelude-val">Ok</span>(AesCcm { |
| key: AlignKey128bit::from(key), |
| iv, |
| aad, |
| handle: ptr::null_mut(), |
| }) |
| } |
| |
| <span class="kw">pub fn </span>encrypt(<span class="kw-2">&mut </span><span class="self">self</span>, src: <span class="kw-2">&</span>[u8], dst: <span class="kw-2">&mut </span>[u8]) -> SgxResult<Mac128bit> { |
| <span class="kw">let </span>src_len = src.len(); |
| <span class="kw">let </span>dst_len = dst.len(); |
| <span class="kw">let </span>aad = <span class="self">self</span>.aad.as_ref(); |
| <span class="kw">let </span>aad_len = aad.len(); |
| |
| <span class="macro">ensure!</span>(src_len < i32::MAX <span class="kw">as </span>usize, SgxStatus::InvalidParameter); |
| <span class="macro">ensure!</span>(src_len == dst_len, SgxStatus::InvalidParameter); |
| |
| <span class="kw">let </span>p_aad = <span class="kw">if </span>!aad.is_empty() { |
| aad.as_ptr() |
| } <span class="kw">else </span>{ |
| ptr::null() |
| }; |
| |
| <span class="kw">let </span>(p_src, p_dst) = <span class="kw">if </span>!src.is_empty() { |
| (src.as_ptr(), dst.as_mut_ptr()) |
| } <span class="kw">else </span>{ |
| (ptr::null(), ptr::null_mut()) |
| }; |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac128bit::default(); |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_aes_ccm128_encrypt( |
| <span class="kw-2">&</span><span class="self">self</span>.key.key <span class="kw">as </span><span class="kw-2">*const </span>Key128bit, |
| p_src, |
| src_len <span class="kw">as </span>u32, |
| p_dst, |
| <span class="self">self</span>.iv.as_ref().as_ptr(), |
| <span class="self">self</span>.iv.as_ref().len() <span class="kw">as </span>u32, |
| p_aad, |
| aad_len <span class="kw">as </span>u32, |
| <span class="kw-2">&mut </span>mac.mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac128bit, |
| ) |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(mac.mac) |
| } |
| |
| <span class="kw">pub fn </span>encrypt_in_place(<span class="kw-2">&mut </span><span class="self">self</span>, in_out: <span class="kw-2">&mut </span>[u8]) -> SgxResult<Mac128bit> { |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = <span class="macro">vec!</span>[<span class="number">0_u8</span>; in_out.len()]; |
| <span class="kw">let </span>mac = <span class="self">self</span>.encrypt(in_out, dst.as_mut_slice())<span class="question-mark">?</span>; |
| in_out.clone_from_slice(dst.as_slice()); |
| <span class="prelude-val">Ok</span>(mac) |
| } |
| |
| <span class="kw">pub fn </span>decrypt(<span class="kw-2">&mut </span><span class="self">self</span>, src: <span class="kw-2">&</span>[u8], dst: <span class="kw-2">&mut </span>[u8], mac: <span class="kw-2">&</span>Mac128bit) -> SgxResult { |
| <span class="kw">let </span>src_len = src.len(); |
| <span class="kw">let </span>dst_len = dst.len(); |
| <span class="kw">let </span>aad = <span class="self">self</span>.aad.as_ref(); |
| <span class="kw">let </span>aad_len = aad.len(); |
| |
| <span class="macro">ensure!</span>(src_len < i32::MAX <span class="kw">as </span>usize, SgxStatus::InvalidParameter); |
| <span class="macro">ensure!</span>(src_len == dst_len, SgxStatus::InvalidParameter); |
| |
| <span class="kw">let </span>p_aad = <span class="kw">if </span>!aad.is_empty() { |
| aad.as_ptr() |
| } <span class="kw">else </span>{ |
| ptr::null() |
| }; |
| |
| <span class="kw">let </span>(p_src, p_dst) = <span class="kw">if </span>!src.is_empty() { |
| (src.as_ptr(), dst.as_mut_ptr()) |
| } <span class="kw">else </span>{ |
| (ptr::null(), ptr::null_mut()) |
| }; |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_aes_ccm128_decrypt( |
| <span class="kw-2">&</span><span class="self">self</span>.key.key <span class="kw">as </span><span class="kw-2">*const </span>Key128bit, |
| p_src, |
| src_len <span class="kw">as </span>u32, |
| p_dst, |
| <span class="self">self</span>.iv.as_ref().as_ptr(), |
| <span class="self">self</span>.iv.as_ref().len() <span class="kw">as </span>u32, |
| p_aad, |
| aad_len <span class="kw">as </span>u32, |
| mac <span class="kw">as </span><span class="kw-2">*const </span>Mac128bit, |
| ) |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>decrypt_in_place(<span class="kw-2">&mut </span><span class="self">self</span>, in_out: <span class="kw-2">&mut </span>[u8], mac: <span class="kw-2">&</span>Mac128bit) -> SgxResult { |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = <span class="macro">vec!</span>[<span class="number">0_u8</span>; in_out.len()]; |
| <span class="self">self</span>.decrypt(in_out, dst.as_mut_slice(), mac)<span class="question-mark">?</span>; |
| in_out.clone_from_slice(dst.as_slice()); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>mac(<span class="kw-2">&mut </span><span class="self">self</span>) -> SgxResult<Mac128bit> { |
| <span class="kw">let </span>aad = <span class="self">self</span>.aad.as_ref(); |
| <span class="macro">ensure!</span>(!aad.is_empty(), SgxStatus::InvalidParameter); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac128bit::default(); |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_aes_ccm128_encrypt( |
| <span class="kw-2">&</span><span class="self">self</span>.key.key <span class="kw">as </span><span class="kw-2">*const </span>Key128bit, |
| ptr::null(), |
| <span class="number">0</span>, |
| ptr::null_mut(), |
| <span class="self">self</span>.iv.as_ref().as_ptr(), |
| <span class="self">self</span>.iv.as_ref().len() <span class="kw">as </span>u32, |
| aad.as_ptr(), |
| aad.len() <span class="kw">as </span>u32, |
| <span class="kw-2">&mut </span>mac.mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac128bit, |
| ) |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(mac.mac) |
| } |
| |
| <span class="kw">pub fn </span>verify_mac(<span class="kw-2">&mut </span><span class="self">self</span>, mac: <span class="kw-2">&</span>Mac128bit) -> SgxResult { |
| <span class="kw">let </span>aad = <span class="self">self</span>.aad.as_ref(); |
| <span class="macro">ensure!</span>(!aad.is_empty(), SgxStatus::InvalidParameter); |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_aes_ccm128_decrypt( |
| <span class="kw-2">&</span><span class="self">self</span>.key.key <span class="kw">as </span><span class="kw-2">*const </span>Key128bit, |
| ptr::null(), |
| <span class="number">0</span>, |
| ptr::null_mut(), |
| <span class="self">self</span>.iv.as_ref().as_ptr(), |
| <span class="self">self</span>.iv.as_ref().len() <span class="kw">as </span>u32, |
| aad.as_ptr(), |
| aad.len() <span class="kw">as </span>u32, |
| mac <span class="kw">as </span><span class="kw-2">*const </span>Mac128bit, |
| ) |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>enc_update(<span class="kw-2">&mut </span><span class="self">self</span>, src: <span class="kw-2">&</span>[u8], dst: <span class="kw-2">&mut </span>[u8]) -> SgxResult { |
| <span class="kw">let </span>src_len = src.len(); |
| <span class="kw">let </span>dst_len = dst.len(); |
| |
| <span class="macro">ensure!</span>( |
| (<span class="number">1</span>..i32::MAX <span class="kw">as </span>usize).contains(<span class="kw-2">&</span>src_len), |
| SgxStatus::InvalidParameter |
| ); |
| <span class="macro">ensure!</span>(src_len == dst_len, SgxStatus::InvalidParameter); |
| |
| <span class="kw">if </span><span class="self">self</span>.handle.is_null() { |
| <span class="self">self</span>.init()<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_aes_ccm128_enc_update(src.as_ptr(), src_len <span class="kw">as </span>u32, dst.as_mut_ptr(), <span class="self">self</span>.handle) |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>enc_update_in_place(<span class="kw-2">&mut </span><span class="self">self</span>, in_out: <span class="kw-2">&mut </span>[u8]) -> SgxResult { |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = <span class="macro">vec!</span>[<span class="number">0_u8</span>; in_out.len()]; |
| <span class="self">self</span>.enc_update(in_out, dst.as_mut_slice())<span class="question-mark">?</span>; |
| in_out.clone_from_slice(dst.as_slice()); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub unsafe fn </span>dec_update(<span class="kw-2">&mut </span><span class="self">self</span>, src: <span class="kw-2">&</span>[u8], dst: <span class="kw-2">&mut </span>[u8]) -> SgxResult { |
| <span class="kw">let </span>src_len = src.len(); |
| <span class="kw">let </span>dst_len = dst.len(); |
| |
| <span class="macro">ensure!</span>( |
| (<span class="number">1</span>..i32::MAX <span class="kw">as </span>usize).contains(<span class="kw-2">&</span>src_len), |
| SgxStatus::InvalidParameter |
| ); |
| <span class="macro">ensure!</span>(src_len == dst_len, SgxStatus::InvalidParameter); |
| |
| <span class="kw">if </span><span class="self">self</span>.handle.is_null() { |
| <span class="self">self</span>.init()<span class="question-mark">?</span>; |
| } |
| |
| <span class="kw">let </span>status = |
| sgx_aes_ccm128_dec_update(src.as_ptr(), src_len <span class="kw">as </span>u32, dst.as_mut_ptr(), <span class="self">self</span>.handle); |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub unsafe fn </span>dec_update_in_place(<span class="kw-2">&mut </span><span class="self">self</span>, in_out: <span class="kw-2">&mut </span>[u8]) -> SgxResult { |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = <span class="macro">vec!</span>[<span class="number">0_u8</span>; in_out.len()]; |
| <span class="self">self</span>.dec_update(in_out, dst.as_mut_slice())<span class="question-mark">?</span>; |
| in_out.clone_from_slice(dst.as_slice()); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>enc_get_mac(<span class="kw-2">&mut </span><span class="self">self</span>) -> SgxResult<Mac128bit> { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac128bit::default(); |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ sgx_aes_ccm128_enc_get_mac(<span class="kw-2">&mut </span>mac.mac <span class="kw">as </span><span class="kw-2">*mut </span>u8, <span class="self">self</span>.handle) }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(mac.mac) |
| } |
| |
| <span class="kw">pub fn </span>dec_verify_mac(<span class="kw-2">&mut </span><span class="self">self</span>, mac: <span class="kw-2">&</span>Mac128bit) -> SgxResult { |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ sgx_aes_ccm128_dec_verify_mac(mac <span class="kw">as </span><span class="kw-2">*const </span>u8, <span class="self">self</span>.handle) }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>init(<span class="kw-2">&mut </span><span class="self">self</span>) -> SgxResult { |
| <span class="kw">let </span>aad = <span class="self">self</span>.aad.as_ref(); |
| <span class="kw">let </span>aad_len = aad.len(); |
| |
| <span class="macro">ensure!</span>(aad_len < i32::MAX <span class="kw">as </span>usize, SgxStatus::InvalidParameter); |
| |
| <span class="kw">let </span>p_aad = <span class="kw">if </span>!aad.is_empty() { |
| aad.as_ptr() |
| } <span class="kw">else </span>{ |
| ptr::null() |
| }; |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_aes_ccm128_init( |
| <span class="kw-2">&</span><span class="self">self</span>.key.key <span class="kw">as </span><span class="kw-2">*const </span>u8, |
| <span class="self">self</span>.iv.as_ref().as_ptr(), |
| <span class="self">self</span>.iv.as_ref().len() <span class="kw">as </span>u32, |
| p_aad, |
| aad_len <span class="kw">as </span>u32, |
| <span class="kw-2">&mut </span><span class="self">self</span>.handle, |
| ) |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>AesCcm<[u8; <span class="number">0</span>]> { |
| <span class="kw">fn </span>default() -> AesCcm<[u8; <span class="number">0</span>]> { |
| <span class="kw">let </span><span class="kw-2">mut </span>key = AlignKey128bit::default(); |
| <span class="kw">super</span>::rand(<span class="kw-2">&mut </span>key.key); |
| |
| AesCcm { |
| key, |
| iv: Nonce::new(), |
| aad: Aad::default(), |
| handle: ptr::null_mut(), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><A: AsRef<[u8]>> Drop <span class="kw">for </span>AesCcm<A> { |
| <span class="kw">fn </span>drop(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">if </span>!<span class="self">self</span>.handle.is_null() { |
| <span class="kw">unsafe </span>{ sgx_aes_ccm_close(<span class="self">self</span>.handle) }; |
| } |
| } |
| } |
| |
| <span class="kw">pub struct </span>Aad<A>(A); |
| |
| <span class="kw">impl</span><A: AsRef<[u8]>> Aad<A> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>from(aad: A) -> Aad<A> { |
| Aad(aad) |
| } |
| } |
| |
| <span class="kw">impl</span><A> AsRef<[u8]> <span class="kw">for </span>Aad<A> |
| <span class="kw">where |
| </span>A: AsRef<[u8]>, |
| { |
| <span class="kw">fn </span>as_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] { |
| <span class="self">self</span>.<span class="number">0</span>.as_ref() |
| } |
| } |
| |
| <span class="kw">impl </span>Aad<[u8; <span class="number">0</span>]> { |
| <span class="kw">pub fn </span>empty() -> Aad<[u8; <span class="number">0</span>]> { |
| <span class="self">Self</span>::from([]) |
| } |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>Aad<[u8; <span class="number">0</span>]> { |
| <span class="kw">fn </span>default() -> Aad<[u8; <span class="number">0</span>]> { |
| Aad::empty() |
| } |
| } |
| |
| <span class="kw">impl</span><A> Clone <span class="kw">for </span>Aad<A> |
| <span class="kw">where |
| </span>A: Clone, |
| { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> Aad<A> { |
| <span class="self">Self</span>(<span class="self">self</span>.<span class="number">0</span>.clone()) |
| } |
| } |
| |
| <span class="kw">impl</span><A> Copy <span class="kw">for </span>Aad<A> <span class="kw">where </span>A: Copy {} |
| |
| <span class="kw">impl</span><A> core::fmt::Debug <span class="kw">for </span>Aad<A> |
| <span class="kw">where |
| </span>A: core::fmt::Debug, |
| { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>core::fmt::Formatter<<span class="lifetime">'_</span>>) -> core::fmt::Result { |
| f.debug_tuple(<span class="string">"Aad"</span>).field(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>).finish() |
| } |
| } |
| |
| <span class="kw">impl</span><A> PartialEq <span class="kw">for </span>Aad<A> |
| <span class="kw">where |
| </span>A: PartialEq, |
| { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span><span class="self">Self</span>) -> bool { |
| <span class="self">self</span>.<span class="number">0</span>.eq(<span class="kw-2">&</span>other.<span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><A> Eq <span class="kw">for </span>Aad<A> <span class="kw">where </span>A: Eq {} |
| |
| <span class="kw">impl</span><A> ConstTimeEq <span class="kw">for </span>Aad<A> |
| <span class="kw">where |
| </span>A: ConstTimeEq + BytewiseEquality + Eq, |
| { |
| <span class="kw">fn </span>ct_eq(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span><span class="self">Self</span>) -> bool { |
| <span class="self">self</span>.<span class="number">0</span>.ct_eq(<span class="kw-2">&</span>other.<span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">unsafe impl</span><A: ContiguousMemory> ContiguousMemory <span class="kw">for </span>Aad<A> {} |
| |
| <span class="kw">unsafe impl</span><A: BytewiseEquality> BytewiseEquality <span class="kw">for </span>Aad<A> {} |
| |
| <span class="attribute">#[derive(Clone, Copy, Debug, Eq, PartialEq)] |
| </span><span class="kw">pub struct </span>Nonce([u8; AESCCM_IV_SIZE]); |
| |
| <span class="kw">impl </span>Nonce { |
| <span class="kw">pub fn </span>new() -> Nonce { |
| <span class="kw">let </span><span class="kw-2">mut </span>nonce = [<span class="number">0_u8</span>; AESCCM_IV_SIZE]; |
| <span class="kw">super</span>::rand(<span class="kw-2">&mut </span>nonce); |
| Nonce(nonce) |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>zeroed() -> Nonce { |
| Nonce([<span class="number">0_u8</span>; AESCCM_IV_SIZE]) |
| } |
| } |
| |
| <span class="kw">impl </span>Default <span class="kw">for </span>Nonce { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>default() -> Nonce { |
| Nonce::new() |
| } |
| } |
| |
| <span class="kw">impl </span>AsRef<[u8; AESCCM_IV_SIZE]> <span class="kw">for </span>Nonce { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>as_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8; AESCCM_IV_SIZE] { |
| <span class="kw-2">&</span><span class="self">self</span>.<span class="number">0 |
| </span>} |
| } |
| |
| <span class="kw">impl </span>From<[u8; AESCCM_IV_SIZE]> <span class="kw">for </span>Nonce { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(nonce: [u8; AESCCM_IV_SIZE]) -> Nonce { |
| Nonce(nonce) |
| } |
| } |
| |
| <span class="kw">impl </span>From<<span class="kw-2">&</span>[u8; AESCCM_IV_SIZE]> <span class="kw">for </span>Nonce { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>from(nonce: <span class="kw-2">&</span>[u8; AESCCM_IV_SIZE]) -> Nonce { |
| Nonce(<span class="kw-2">*</span>nonce) |
| } |
| } |
| |
| <span class="kw">impl </span>TryFrom<<span class="kw-2">&</span>[u8]> <span class="kw">for </span>Nonce { |
| <span class="kw">type </span>Error = TryFromSliceError; |
| |
| <span class="kw">fn </span>try_from(nonce: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><Nonce, TryFromSliceError> { |
| <span class="kw">let </span>nonce: <span class="kw-2">&</span>[u8; AESCCM_IV_SIZE] = nonce.try_into()<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(Nonce(<span class="kw-2">*</span>nonce)) |
| } |
| } |
| |
| <span class="kw">unsafe impl </span>ContiguousMemory <span class="kw">for </span>Nonce {} |
| |
| <span class="kw">unsafe impl </span>BytewiseEquality <span class="kw">for </span>Nonce {} |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="sgx_crypto" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
