| <!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 `types/src/attestation.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>attestation.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="../../teaclave_types/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="../../teaclave_types/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> |
| <span id="2">2</span> |
| <span id="3">3</span> |
| <span id="4">4</span> |
| <span id="5">5</span> |
| <span id="6">6</span> |
| <span id="7">7</span> |
| <span id="8">8</span> |
| <span id="9">9</span> |
| <span id="10">10</span> |
| <span id="11">11</span> |
| <span id="12">12</span> |
| <span id="13">13</span> |
| <span id="14">14</span> |
| <span id="15">15</span> |
| <span id="16">16</span> |
| <span id="17">17</span> |
| <span id="18">18</span> |
| <span id="19">19</span> |
| <span id="20">20</span> |
| <span id="21">21</span> |
| <span id="22">22</span> |
| <span id="23">23</span> |
| <span id="24">24</span> |
| <span id="25">25</span> |
| <span id="26">26</span> |
| <span id="27">27</span> |
| <span id="28">28</span> |
| <span id="29">29</span> |
| <span id="30">30</span> |
| <span id="31">31</span> |
| <span id="32">32</span> |
| <span id="33">33</span> |
| <span id="34">34</span> |
| <span id="35">35</span> |
| <span id="36">36</span> |
| <span id="37">37</span> |
| <span id="38">38</span> |
| <span id="39">39</span> |
| <span id="40">40</span> |
| <span id="41">41</span> |
| <span id="42">42</span> |
| <span id="43">43</span> |
| <span id="44">44</span> |
| <span id="45">45</span> |
| <span id="46">46</span> |
| <span id="47">47</span> |
| <span id="48">48</span> |
| <span id="49">49</span> |
| <span id="50">50</span> |
| <span id="51">51</span> |
| <span id="52">52</span> |
| <span id="53">53</span> |
| <span id="54">54</span> |
| <span id="55">55</span> |
| <span id="56">56</span> |
| <span id="57">57</span> |
| <span id="58">58</span> |
| <span id="59">59</span> |
| <span id="60">60</span> |
| <span id="61">61</span> |
| <span id="62">62</span> |
| <span id="63">63</span> |
| <span id="64">64</span> |
| <span id="65">65</span> |
| <span id="66">66</span> |
| <span id="67">67</span> |
| <span id="68">68</span> |
| <span id="69">69</span> |
| <span id="70">70</span> |
| <span id="71">71</span> |
| <span id="72">72</span> |
| <span id="73">73</span> |
| <span id="74">74</span> |
| <span id="75">75</span> |
| <span id="76">76</span> |
| <span id="77">77</span> |
| <span id="78">78</span> |
| <span id="79">79</span> |
| <span id="80">80</span> |
| <span id="81">81</span> |
| <span id="82">82</span> |
| <span id="83">83</span> |
| <span id="84">84</span> |
| <span id="85">85</span> |
| <span id="86">86</span> |
| <span id="87">87</span> |
| <span id="88">88</span> |
| <span id="89">89</span> |
| <span id="90">90</span> |
| <span id="91">91</span> |
| <span id="92">92</span> |
| <span id="93">93</span> |
| <span id="94">94</span> |
| <span id="95">95</span> |
| <span id="96">96</span> |
| <span id="97">97</span> |
| <span id="98">98</span> |
| <span id="99">99</span> |
| <span id="100">100</span> |
| <span id="101">101</span> |
| <span id="102">102</span> |
| <span id="103">103</span> |
| <span id="104">104</span> |
| <span id="105">105</span> |
| <span id="106">106</span> |
| <span id="107">107</span> |
| <span id="108">108</span> |
| <span id="109">109</span> |
| <span id="110">110</span> |
| <span id="111">111</span> |
| <span id="112">112</span> |
| <span id="113">113</span> |
| <span id="114">114</span> |
| <span id="115">115</span> |
| <span id="116">116</span> |
| <span id="117">117</span> |
| <span id="118">118</span> |
| <span id="119">119</span> |
| <span id="120">120</span> |
| <span id="121">121</span> |
| <span id="122">122</span> |
| <span id="123">123</span> |
| <span id="124">124</span> |
| <span id="125">125</span> |
| <span id="126">126</span> |
| <span id="127">127</span> |
| <span id="128">128</span> |
| <span id="129">129</span> |
| <span id="130">130</span> |
| <span id="131">131</span> |
| <span id="132">132</span> |
| <span id="133">133</span> |
| <span id="134">134</span> |
| <span id="135">135</span> |
| <span id="136">136</span> |
| <span id="137">137</span> |
| <span id="138">138</span> |
| <span id="139">139</span> |
| <span id="140">140</span> |
| <span id="141">141</span> |
| <span id="142">142</span> |
| <span id="143">143</span> |
| </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>std::collections::HashMap; |
| |
| <span class="kw">use </span>anyhow::{bail, ensure, <span class="prelude-ty">Result</span>}; |
| <span class="kw">use </span>serde::{Deserialize, Deserializer}; |
| <span class="kw">use </span>sgx_types::types::SHA256_HASH_SIZE; |
| |
| <span class="kw">pub type </span>SgxMeasurement = [u8; SHA256_HASH_SIZE]; |
| |
| <span class="attribute">#[derive(Debug, Deserialize, Copy, Clone, Eq, PartialEq)] |
| </span><span class="kw">pub struct </span>EnclaveMeasurement { |
| <span class="attribute">#[serde(deserialize_with = <span class="string">"from_hex"</span>)] |
| </span><span class="kw">pub </span>mr_signer: SgxMeasurement, |
| <span class="attribute">#[serde(deserialize_with = <span class="string">"from_hex"</span>)] |
| </span><span class="kw">pub </span>mr_enclave: SgxMeasurement, |
| } |
| |
| <span class="kw">impl </span>EnclaveMeasurement { |
| <span class="kw">pub fn </span>new(mr_enclave: SgxMeasurement, mr_signer: SgxMeasurement) -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ |
| mr_enclave, |
| mr_signer, |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Deserializes a hex string to a `SgxMeasurement` (i.e., [0; 32]). |
| </span><span class="kw">pub fn </span>from_hex<<span class="lifetime">'de</span>, D>(deserializer: D) -> <span class="prelude-ty">Result</span><SgxMeasurement, D::Error> |
| <span class="kw">where |
| </span>D: Deserializer<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">use </span>serde::de::Error; |
| String::deserialize(deserializer).and_then(|string| { |
| <span class="kw">let </span>v = hex::decode(<span class="kw-2">&</span>string).map_err(|<span class="kw">_</span>| Error::custom(<span class="string">"ParseError"</span>))<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>array = [<span class="number">0</span>; SHA256_HASH_SIZE]; |
| <span class="kw">let </span>bytes = <span class="kw-2">&</span>v[..array.len()]; <span class="comment">// panics if not enough data |
| </span>array.copy_from_slice(bytes); |
| <span class="prelude-val">Ok</span>(array) |
| }) |
| } |
| |
| <span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>EnclaveAttr { |
| <span class="kw">pub </span>measurement: EnclaveMeasurement, |
| } |
| |
| <span class="kw">pub struct </span>EnclaveInfo { |
| <span class="kw">pub </span>measurements: HashMap<String, EnclaveMeasurement>, |
| } |
| |
| <span class="attribute">#[derive(Debug, Deserialize)] |
| #[serde(transparent)] |
| </span><span class="kw">struct </span>EnclaveInfoToml(HashMap<String, EnclaveMeasurement>); |
| |
| <span class="kw">impl </span>EnclaveInfo { |
| <span class="kw">pub fn </span>verify_and_new<T, U>( |
| enclave_info: <span class="kw-2">&</span>[u8], |
| public_keys: <span class="kw-2">&</span>[T], |
| signatures: <span class="kw-2">&</span>[U], |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>> |
| <span class="kw">where |
| </span>T: AsRef<[u8]>, |
| U: AsRef<[u8]>, |
| { |
| <span class="macro">ensure!</span>( |
| signatures.len() <= public_keys.len(), |
| <span class="string">"Invalid number of public keys" |
| </span>); |
| <span class="kw">if </span>!<span class="self">Self</span>::verify(enclave_info, public_keys, signatures) { |
| <span class="macro">bail!</span>(<span class="string">"Invalid enclave_info"</span>); |
| } |
| |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_bytes(enclave_info)) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"app"</span>)] |
| </span><span class="kw">pub fn </span>from_file<P: AsRef<std::path::Path>>(path: P) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>> { |
| <span class="kw">let </span>bytes = std::fs::read(path)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="self">Self</span>::from_bytes(<span class="kw-2">&</span>bytes)) |
| } |
| |
| <span class="kw">pub fn </span>from_bytes(enclave_info: <span class="kw-2">&</span>[u8]) -> <span class="self">Self </span>{ |
| <span class="kw">let </span>config: EnclaveInfoToml = toml::from_slice(enclave_info) |
| .expect(<span class="string">"Content not correct, unable to load enclave info."</span>); |
| <span class="kw">let </span><span class="kw-2">mut </span>info_map = std::collections::HashMap::new(); |
| <span class="kw">for </span>(k, v) <span class="kw">in </span>config.<span class="number">0 </span>{ |
| info_map.insert(k, EnclaveMeasurement::new(v.mr_enclave, v.mr_signer)); |
| } |
| |
| <span class="self">Self </span>{ |
| measurements: info_map, |
| } |
| } |
| |
| <span class="kw">pub fn </span>verify<T, U>(enclave_info: <span class="kw-2">&</span>[u8], public_keys: <span class="kw-2">&</span>[T], signatures: <span class="kw-2">&</span>[U]) -> bool |
| <span class="kw">where |
| </span>T: AsRef<[u8]>, |
| U: AsRef<[u8]>, |
| { |
| <span class="kw">use </span>ring::signature; |
| |
| <span class="kw">for </span>s <span class="kw">in </span>signatures { |
| <span class="kw">let </span><span class="kw-2">mut </span>verified = <span class="bool-val">false</span>; |
| <span class="kw">for </span>k <span class="kw">in </span>public_keys { |
| <span class="kw">if </span>signature::UnparsedPublicKey::new(<span class="kw-2">&</span>signature::RSA_PKCS1_2048_8192_SHA256, k) |
| .verify(enclave_info, s.as_ref()) |
| .is_ok() |
| { |
| verified = <span class="bool-val">true</span>; |
| } |
| } |
| <span class="kw">if </span>!verified { |
| <span class="kw">return </span><span class="bool-val">false</span>; |
| } |
| } |
| |
| <span class="bool-val">true |
| </span>} |
| |
| <span class="kw">pub fn </span>get_enclave_attr(<span class="kw-2">&</span><span class="self">self</span>, service_name: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Option</span><EnclaveAttr> { |
| <span class="self">self</span>.measurements |
| .get(service_name) |
| .map(|measurement| EnclaveAttr { |
| measurement: <span class="kw-2">*</span>measurement, |
| }) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="teaclave_types" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
