| <!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/mac/hmac.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>hmac.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>alloc::borrow::ToOwned; |
| <span class="kw">use </span>alloc::vec::Vec; |
| <span class="kw">use </span>core::mem; |
| <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::ContiguousMemory; |
| <span class="kw">use </span>sgx_types::memeq::ConstTimeEq; |
| <span class="kw">use </span>sgx_types::types::{AlignMac256bit, HMacHandle, Mac256bit, MAC_256BIT_SIZE}; |
| |
| <span class="attribute">#[derive(Clone, Copy, Debug, Eq, PartialEq)] |
| </span><span class="kw">pub enum </span>HashType { |
| Sha256, |
| Sm3, |
| } |
| |
| <span class="kw">pub struct </span>HMac { |
| hash_type: HashType, |
| handle: HMacHandle, |
| key: Vec<u8>, |
| } |
| |
| <span class="kw">impl </span>HMac { |
| <span class="kw">pub fn </span>new(key: <span class="kw-2">&</span>[u8], hash_type: HashType) -> SgxResult<HMac> { |
| <span class="macro">ensure!</span>( |
| (!key.is_empty() && key.len() <= i32::MAX <span class="kw">as </span>usize), |
| SgxStatus::InvalidParameter |
| ); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>handle: HMacHandle = ptr::null_mut(); |
| <span class="kw">let </span>key = key.to_owned(); |
| <span class="kw">let </span>status = <span class="kw">match </span>hash_type { |
| HashType::Sha256 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sha256_init( |
| key.as_ptr(), |
| key.len() <span class="kw">as </span>i32, |
| <span class="kw-2">&mut </span>handle <span class="kw">as </span><span class="kw-2">*mut </span>HMacHandle, |
| ) |
| }, |
| HashType::Sm3 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sm3_init( |
| key.as_ptr(), |
| key.len() <span class="kw">as </span>i32, |
| <span class="kw-2">&mut </span>handle <span class="kw">as </span><span class="kw-2">*mut </span>HMacHandle, |
| ) |
| }, |
| }; |
| |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| <span class="prelude-val">Ok</span>(HMac { |
| hash_type, |
| handle, |
| key, |
| }) |
| } |
| |
| <span class="kw">pub fn </span>update<T: <span class="question-mark">?</span>Sized>(<span class="kw-2">&mut </span><span class="self">self</span>, data: <span class="kw-2">&</span>T) -> SgxResult |
| <span class="kw">where |
| </span>T: ContiguousMemory, |
| { |
| <span class="kw">let </span>size = mem::size_of_val(data); |
| <span class="macro">ensure!</span>( |
| (size > <span class="number">0 </span>&& size < i32::MAX <span class="kw">as </span>usize), |
| SgxStatus::InvalidParameter |
| ); |
| |
| <span class="kw">let </span>status = <span class="kw">match </span><span class="self">self</span>.hash_type { |
| HashType::Sha256 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sha256_update((data <span class="kw">as </span><span class="kw-2">*const </span>T).cast(), size <span class="kw">as </span>i32, <span class="self">self</span>.handle) |
| }, |
| HashType::Sm3 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sm3_update((data <span class="kw">as </span><span class="kw-2">*const </span>T).cast(), size <span class="kw">as </span>i32, <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>finalize(<span class="self">self</span>) -> SgxResult<Mac256bit> { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac256bit::default(); |
| <span class="self">self</span>.finalize_into(<span class="kw-2">&mut </span>mac.mac)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(mac.mac) |
| } |
| |
| <span class="kw">pub fn </span>finalize_align(<span class="self">self</span>) -> SgxResult<AlignMac256bit> { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac256bit::default(); |
| <span class="self">self</span>.finalize_into(<span class="kw-2">&mut </span>mac.mac)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(mac) |
| } |
| |
| <span class="kw">pub fn </span>finalize_into(<span class="self">self</span>, mac: <span class="kw-2">&mut </span>Mac256bit) -> SgxResult { |
| <span class="kw">let </span>status = <span class="kw">match </span><span class="self">self</span>.hash_type { |
| HashType::Sha256 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sha256_final( |
| (mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac256bit).cast(), |
| MAC_256BIT_SIZE <span class="kw">as </span>i32, |
| <span class="self">self</span>.handle, |
| ) |
| }, |
| HashType::Sm3 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sm3_final( |
| (mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac256bit).cast(), |
| MAC_256BIT_SIZE <span class="kw">as </span>i32, |
| <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>finalize_reset(<span class="kw-2">&mut </span><span class="self">self</span>) -> SgxResult<Mac256bit> { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac256bit::default(); |
| <span class="self">self</span>.finalize_into_reset(<span class="kw-2">&mut </span>mac.mac)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(mac.mac) |
| } |
| |
| <span class="kw">pub fn </span>finalize_reset_align(<span class="kw-2">&mut </span><span class="self">self</span>) -> SgxResult<AlignMac256bit> { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac256bit::default(); |
| <span class="self">self</span>.finalize_into_reset(<span class="kw-2">&mut </span>mac.mac)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(mac) |
| } |
| |
| <span class="kw">pub fn </span>finalize_into_reset(<span class="kw-2">&mut </span><span class="self">self</span>, mac: <span class="kw-2">&mut </span>Mac256bit) -> SgxResult { |
| <span class="kw">match </span><span class="self">self</span>.hash_type { |
| HashType::Sha256 => { |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_hmac_sha256_final( |
| (mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac256bit).cast(), |
| MAC_256BIT_SIZE <span class="kw">as </span>i32, |
| <span class="self">self</span>.handle, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ sgx_hmac_sha256_close(<span class="self">self</span>.handle) }; |
| <span class="macro">debug_assert!</span>(status.is_success()); |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_hmac_sha256_init( |
| <span class="self">self</span>.key.as_ptr(), |
| <span class="self">self</span>.key.len() <span class="kw">as </span>i32, |
| <span class="kw-2">&mut </span><span class="self">self</span>.handle <span class="kw">as </span><span class="kw-2">*mut </span>HMacHandle, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| HashType::Sm3 => { |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_hmac_sm3_final( |
| (mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac256bit).cast(), |
| MAC_256BIT_SIZE <span class="kw">as </span>i32, |
| <span class="self">self</span>.handle, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ sgx_hmac_sm3_close(<span class="self">self</span>.handle) }; |
| <span class="macro">debug_assert!</span>(status.is_success()); |
| |
| <span class="kw">let </span>status = <span class="kw">unsafe </span>{ |
| sgx_hmac_sm3_init( |
| <span class="self">self</span>.key.as_ptr(), |
| <span class="self">self</span>.key.len() <span class="kw">as </span>i32, |
| <span class="kw-2">&mut </span><span class="self">self</span>.handle <span class="kw">as </span><span class="kw-2">*mut </span>HMacHandle, |
| ) |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| } |
| |
| <span class="kw">pub fn </span>verify(<span class="self">self</span>, mac: <span class="kw-2">&</span>Mac256bit) -> SgxResult { |
| <span class="kw">let </span>mac_result = <span class="self">self</span>.finalize_align()<span class="question-mark">?</span>; |
| <span class="macro">ensure!</span>(<span class="kw-2">&</span>mac_result.mac.ct_eq(mac), SgxStatus::MacMismatch); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">pub fn </span>hmac<T: <span class="question-mark">?</span>Sized>(key: <span class="kw-2">&</span>[u8], hash_type: HashType, data: <span class="kw-2">&</span>T) -> SgxResult<Mac256bit> |
| <span class="kw">where |
| </span>T: ContiguousMemory, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac256bit::default(); |
| <span class="self">Self</span>::hmac_into(key, hash_type, data, <span class="kw-2">&mut </span>mac.mac)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(mac.mac) |
| } |
| |
| <span class="kw">pub fn </span>hmac_align<T: <span class="question-mark">?</span>Sized>( |
| key: <span class="kw-2">&</span>[u8], |
| hash_type: HashType, |
| data: <span class="kw-2">&</span>T, |
| ) -> SgxResult<AlignMac256bit> |
| <span class="kw">where |
| </span>T: ContiguousMemory, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>mac = AlignMac256bit::default(); |
| <span class="self">Self</span>::hmac_into(key, hash_type, data, <span class="kw-2">&mut </span>mac.mac)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(mac) |
| } |
| |
| <span class="kw">pub fn </span>hmac_into<T: <span class="question-mark">?</span>Sized>( |
| key: <span class="kw-2">&</span>[u8], |
| hash_type: HashType, |
| data: <span class="kw-2">&</span>T, |
| mac: <span class="kw-2">&mut </span>Mac256bit, |
| ) -> SgxResult |
| <span class="kw">where |
| </span>T: ContiguousMemory, |
| { |
| <span class="kw">let </span>size = mem::size_of_val(data); |
| <span class="macro">ensure!</span>( |
| (size > <span class="number">0 </span>&& size < i32::MAX <span class="kw">as </span>usize), |
| SgxStatus::InvalidParameter |
| ); |
| <span class="macro">ensure!</span>( |
| (!key.is_empty() && key.len() <= i32::MAX <span class="kw">as </span>usize), |
| SgxStatus::InvalidParameter |
| ); |
| |
| <span class="kw">let </span>status = <span class="kw">match </span>hash_type { |
| HashType::Sha256 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sha256_msg( |
| (data <span class="kw">as </span><span class="kw-2">*const </span>T).cast(), |
| size <span class="kw">as </span>i32, |
| key.as_ptr(), |
| key.len() <span class="kw">as </span>i32, |
| (mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac256bit).cast(), |
| MAC_256BIT_SIZE <span class="kw">as </span>i32, |
| ) |
| }, |
| HashType::Sm3 => <span class="kw">unsafe </span>{ |
| sgx_hmac_sm3_msg( |
| (data <span class="kw">as </span><span class="kw-2">*const </span>T).cast(), |
| size <span class="kw">as </span>i32, |
| key.as_ptr(), |
| key.len() <span class="kw">as </span>i32, |
| (mac <span class="kw">as </span><span class="kw-2">*mut </span>Mac256bit).cast(), |
| MAC_256BIT_SIZE <span class="kw">as </span>i32, |
| ) |
| }, |
| }; |
| <span class="macro">ensure!</span>(status.is_success(), status); |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl </span>Drop <span class="kw">for </span>HMac { |
| <span class="kw">fn </span>drop(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">match </span><span class="self">self</span>.hash_type { |
| HashType::Sha256 => <span class="kw">unsafe </span>{ sgx_hmac_sha256_close(<span class="self">self</span>.handle) }, |
| HashType::Sm3 => <span class="kw">unsafe </span>{ sgx_hmac_sm3_close(<span class="self">self</span>.handle) }, |
| }; |
| } |
| } |
| </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> |
