api-docs/crates-enclave/src/webpki/signed_data.rs.html - incubator-teaclave-website - Git at Google

 <!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/webpki-0.21.4/src/signed_data.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>signed_data.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="../../webpki/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="../../webpki/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>
 <span id="144">144</span>
 <span id="145">145</span>
 <span id="146">146</span>
 <span id="147">147</span>
 <span id="148">148</span>
 <span id="149">149</span>
 <span id="150">150</span>
 <span id="151">151</span>
 <span id="152">152</span>
 <span id="153">153</span>
 <span id="154">154</span>
 <span id="155">155</span>
 <span id="156">156</span>
 <span id="157">157</span>
 <span id="158">158</span>
 <span id="159">159</span>
 <span id="160">160</span>
 <span id="161">161</span>
 <span id="162">162</span>
 <span id="163">163</span>
 <span id="164">164</span>
 <span id="165">165</span>
 <span id="166">166</span>
 <span id="167">167</span>
 <span id="168">168</span>
 <span id="169">169</span>
 <span id="170">170</span>
 <span id="171">171</span>
 <span id="172">172</span>
 <span id="173">173</span>
 <span id="174">174</span>
 <span id="175">175</span>
 <span id="176">176</span>
 <span id="177">177</span>
 <span id="178">178</span>
 <span id="179">179</span>
 <span id="180">180</span>
 <span id="181">181</span>
 <span id="182">182</span>
 <span id="183">183</span>
 <span id="184">184</span>
 <span id="185">185</span>
 <span id="186">186</span>
 <span id="187">187</span>
 <span id="188">188</span>
 <span id="189">189</span>
 <span id="190">190</span>
 <span id="191">191</span>
 <span id="192">192</span>
 <span id="193">193</span>
 <span id="194">194</span>
 <span id="195">195</span>
 <span id="196">196</span>
 <span id="197">197</span>
 <span id="198">198</span>
 <span id="199">199</span>
 <span id="200">200</span>
 <span id="201">201</span>
 <span id="202">202</span>
 <span id="203">203</span>
 <span id="204">204</span>
 <span id="205">205</span>
 <span id="206">206</span>
 <span id="207">207</span>
 <span id="208">208</span>
 <span id="209">209</span>
 <span id="210">210</span>
 <span id="211">211</span>
 <span id="212">212</span>
 <span id="213">213</span>
 <span id="214">214</span>
 <span id="215">215</span>
 <span id="216">216</span>
 <span id="217">217</span>
 <span id="218">218</span>
 <span id="219">219</span>
 <span id="220">220</span>
 <span id="221">221</span>
 <span id="222">222</span>
 <span id="223">223</span>
 <span id="224">224</span>
 <span id="225">225</span>
 <span id="226">226</span>
 <span id="227">227</span>
 <span id="228">228</span>
 <span id="229">229</span>
 <span id="230">230</span>
 <span id="231">231</span>
 <span id="232">232</span>
 <span id="233">233</span>
 <span id="234">234</span>
 <span id="235">235</span>
 <span id="236">236</span>
 <span id="237">237</span>
 <span id="238">238</span>
 <span id="239">239</span>
 <span id="240">240</span>
 <span id="241">241</span>
 <span id="242">242</span>
 <span id="243">243</span>
 <span id="244">244</span>
 <span id="245">245</span>
 <span id="246">246</span>
 <span id="247">247</span>
 <span id="248">248</span>
 <span id="249">249</span>
 <span id="250">250</span>
 <span id="251">251</span>
 <span id="252">252</span>
 <span id="253">253</span>
 <span id="254">254</span>
 <span id="255">255</span>
 <span id="256">256</span>
 <span id="257">257</span>
 <span id="258">258</span>
 <span id="259">259</span>
 <span id="260">260</span>
 <span id="261">261</span>
 <span id="262">262</span>
 <span id="263">263</span>
 <span id="264">264</span>
 <span id="265">265</span>
 <span id="266">266</span>
 <span id="267">267</span>
 <span id="268">268</span>
 <span id="269">269</span>
 <span id="270">270</span>
 <span id="271">271</span>
 <span id="272">272</span>
 <span id="273">273</span>
 <span id="274">274</span>
 <span id="275">275</span>
 <span id="276">276</span>
 <span id="277">277</span>
 <span id="278">278</span>
 <span id="279">279</span>
 <span id="280">280</span>
 <span id="281">281</span>
 <span id="282">282</span>
 <span id="283">283</span>
 <span id="284">284</span>
 <span id="285">285</span>
 <span id="286">286</span>
 <span id="287">287</span>
 <span id="288">288</span>
 <span id="289">289</span>
 <span id="290">290</span>
 <span id="291">291</span>
 <span id="292">292</span>
 <span id="293">293</span>
 <span id="294">294</span>
 <span id="295">295</span>
 <span id="296">296</span>
 <span id="297">297</span>
 <span id="298">298</span>
 <span id="299">299</span>
 <span id="300">300</span>
 <span id="301">301</span>
 <span id="302">302</span>
 <span id="303">303</span>
 <span id="304">304</span>
 <span id="305">305</span>
 <span id="306">306</span>
 <span id="307">307</span>
 <span id="308">308</span>
 <span id="309">309</span>
 <span id="310">310</span>
 <span id="311">311</span>
 <span id="312">312</span>
 <span id="313">313</span>
 <span id="314">314</span>
 <span id="315">315</span>
 <span id="316">316</span>
 <span id="317">317</span>
 <span id="318">318</span>
 <span id="319">319</span>
 <span id="320">320</span>
 <span id="321">321</span>
 <span id="322">322</span>
 <span id="323">323</span>
 <span id="324">324</span>
 <span id="325">325</span>
 <span id="326">326</span>
 <span id="327">327</span>
 <span id="328">328</span>
 <span id="329">329</span>
 <span id="330">330</span>
 <span id="331">331</span>
 <span id="332">332</span>
 <span id="333">333</span>
 <span id="334">334</span>
 <span id="335">335</span>
 <span id="336">336</span>
 <span id="337">337</span>
 <span id="338">338</span>
 <span id="339">339</span>
 <span id="340">340</span>
 <span id="341">341</span>
 <span id="342">342</span>
 <span id="343">343</span>
 <span id="344">344</span>
 <span id="345">345</span>
 <span id="346">346</span>
 <span id="347">347</span>
 <span id="348">348</span>
 <span id="349">349</span>
 <span id="350">350</span>
 <span id="351">351</span>
 <span id="352">352</span>
 <span id="353">353</span>
 <span id="354">354</span>
 <span id="355">355</span>
 <span id="356">356</span>
 <span id="357">357</span>
 <span id="358">358</span>
 <span id="359">359</span>
 <span id="360">360</span>
 <span id="361">361</span>
 <span id="362">362</span>
 <span id="363">363</span>
 <span id="364">364</span>
 <span id="365">365</span>
 <span id="366">366</span>
 <span id="367">367</span>
 <span id="368">368</span>
 <span id="369">369</span>
 <span id="370">370</span>
 <span id="371">371</span>
 <span id="372">372</span>
 <span id="373">373</span>
 <span id="374">374</span>
 <span id="375">375</span>
 <span id="376">376</span>
 <span id="377">377</span>
 <span id="378">378</span>
 <span id="379">379</span>
 <span id="380">380</span>
 <span id="381">381</span>
 <span id="382">382</span>
 <span id="383">383</span>
 <span id="384">384</span>
 <span id="385">385</span>
 <span id="386">386</span>
 <span id="387">387</span>
 <span id="388">388</span>
 <span id="389">389</span>
 <span id="390">390</span>
 <span id="391">391</span>
 <span id="392">392</span>
 <span id="393">393</span>
 <span id="394">394</span>
 <span id="395">395</span>
 <span id="396">396</span>
 <span id="397">397</span>
 <span id="398">398</span>
 <span id="399">399</span>
 <span id="400">400</span>
 <span id="401">401</span>
 <span id="402">402</span>
 <span id="403">403</span>
 <span id="404">404</span>
 <span id="405">405</span>
 <span id="406">406</span>
 <span id="407">407</span>
 <span id="408">408</span>
 <span id="409">409</span>
 <span id="410">410</span>
 <span id="411">411</span>
 <span id="412">412</span>
 <span id="413">413</span>
 <span id="414">414</span>
 <span id="415">415</span>
 <span id="416">416</span>
 <span id="417">417</span>
 <span id="418">418</span>
 <span id="419">419</span>
 <span id="420">420</span>
 <span id="421">421</span>
 <span id="422">422</span>
 <span id="423">423</span>
 <span id="424">424</span>
 <span id="425">425</span>
 <span id="426">426</span>
 <span id="427">427</span>
 <span id="428">428</span>
 <span id="429">429</span>
 <span id="430">430</span>
 <span id="431">431</span>
 <span id="432">432</span>
 <span id="433">433</span>
 <span id="434">434</span>
 <span id="435">435</span>
 <span id="436">436</span>
 <span id="437">437</span>
 <span id="438">438</span>
 <span id="439">439</span>
 <span id="440">440</span>
 <span id="441">441</span>
 <span id="442">442</span>
 <span id="443">443</span>
 <span id="444">444</span>
 <span id="445">445</span>
 <span id="446">446</span>
 <span id="447">447</span>
 <span id="448">448</span>
 <span id="449">449</span>
 <span id="450">450</span>
 <span id="451">451</span>
 <span id="452">452</span>
 <span id="453">453</span>
 <span id="454">454</span>
 <span id="455">455</span>
 <span id="456">456</span>
 <span id="457">457</span>
 <span id="458">458</span>
 <span id="459">459</span>
 <span id="460">460</span>
 <span id="461">461</span>
 <span id="462">462</span>
 <span id="463">463</span>
 <span id="464">464</span>
 <span id="465">465</span>
 <span id="466">466</span>
 <span id="467">467</span>
 <span id="468">468</span>
 <span id="469">469</span>
 <span id="470">470</span>
 <span id="471">471</span>
 <span id="472">472</span>
 <span id="473">473</span>
 <span id="474">474</span>
 <span id="475">475</span>
 <span id="476">476</span>
 <span id="477">477</span>
 <span id="478">478</span>
 <span id="479">479</span>
 <span id="480">480</span>
 <span id="481">481</span>
 <span id="482">482</span>
 <span id="483">483</span>
 <span id="484">484</span>
 <span id="485">485</span>
 <span id="486">486</span>
 <span id="487">487</span>
 <span id="488">488</span>
 <span id="489">489</span>
 <span id="490">490</span>
 <span id="491">491</span>
 <span id="492">492</span>
 <span id="493">493</span>
 <span id="494">494</span>
 <span id="495">495</span>
 <span id="496">496</span>
 <span id="497">497</span>
 <span id="498">498</span>
 <span id="499">499</span>
 <span id="500">500</span>
 <span id="501">501</span>
 <span id="502">502</span>
 <span id="503">503</span>
 <span id="504">504</span>
 <span id="505">505</span>
 <span id="506">506</span>
 <span id="507">507</span>
 <span id="508">508</span>
 <span id="509">509</span>
 <span id="510">510</span>
 <span id="511">511</span>
 <span id="512">512</span>
 <span id="513">513</span>
 <span id="514">514</span>
 <span id="515">515</span>
 <span id="516">516</span>
 <span id="517">517</span>
 <span id="518">518</span>
 <span id="519">519</span>
 <span id="520">520</span>
 <span id="521">521</span>
 <span id="522">522</span>
 <span id="523">523</span>
 <span id="524">524</span>
 <span id="525">525</span>
 <span id="526">526</span>
 <span id="527">527</span>
 <span id="528">528</span>
 <span id="529">529</span>
 <span id="530">530</span>
 <span id="531">531</span>
 <span id="532">532</span>
 <span id="533">533</span>
 <span id="534">534</span>
 <span id="535">535</span>
 <span id="536">536</span>
 <span id="537">537</span>
 <span id="538">538</span>
 <span id="539">539</span>
 <span id="540">540</span>
 <span id="541">541</span>
 <span id="542">542</span>
 <span id="543">543</span>
 <span id="544">544</span>
 <span id="545">545</span>
 <span id="546">546</span>
 <span id="547">547</span>
 <span id="548">548</span>
 <span id="549">549</span>
 <span id="550">550</span>
 <span id="551">551</span>
 <span id="552">552</span>
 <span id="553">553</span>
 <span id="554">554</span>
 <span id="555">555</span>
 <span id="556">556</span>
 <span id="557">557</span>
 <span id="558">558</span>
 <span id="559">559</span>
 <span id="560">560</span>
 <span id="561">561</span>
 <span id="562">562</span>
 <span id="563">563</span>
 <span id="564">564</span>
 <span id="565">565</span>
 <span id="566">566</span>
 <span id="567">567</span>
 <span id="568">568</span>
 <span id="569">569</span>
 <span id="570">570</span>
 <span id="571">571</span>
 <span id="572">572</span>
 <span id="573">573</span>
 <span id="574">574</span>
 <span id="575">575</span>
 <span id="576">576</span>
 <span id="577">577</span>
 <span id="578">578</span>
 <span id="579">579</span>
 <span id="580">580</span>
 <span id="581">581</span>
 <span id="582">582</span>
 <span id="583">583</span>
 <span id="584">584</span>
 <span id="585">585</span>
 <span id="586">586</span>
 <span id="587">587</span>
 <span id="588">588</span>
 <span id="589">589</span>
 <span id="590">590</span>
 <span id="591">591</span>
 <span id="592">592</span>
 <span id="593">593</span>
 <span id="594">594</span>
 <span id="595">595</span>
 <span id="596">596</span>
 <span id="597">597</span>
 <span id="598">598</span>
 <span id="599">599</span>
 <span id="600">600</span>
 <span id="601">601</span>
 <span id="602">602</span>
 <span id="603">603</span>
 <span id="604">604</span>
 <span id="605">605</span>
 <span id="606">606</span>
 <span id="607">607</span>
 <span id="608">608</span>
 <span id="609">609</span>
 <span id="610">610</span>
 <span id="611">611</span>
 <span id="612">612</span>
 <span id="613">613</span>
 <span id="614">614</span>
 <span id="615">615</span>
 <span id="616">616</span>
 <span id="617">617</span>
 <span id="618">618</span>
 <span id="619">619</span>
 <span id="620">620</span>
 <span id="621">621</span>
 <span id="622">622</span>
 <span id="623">623</span>
 <span id="624">624</span>
 <span id="625">625</span>
 <span id="626">626</span>
 <span id="627">627</span>
 <span id="628">628</span>
 <span id="629">629</span>
 <span id="630">630</span>
 <span id="631">631</span>
 <span id="632">632</span>
 <span id="633">633</span>
 <span id="634">634</span>
 <span id="635">635</span>
 <span id="636">636</span>
 <span id="637">637</span>
 <span id="638">638</span>
 <span id="639">639</span>
 <span id="640">640</span>
 <span id="641">641</span>
 <span id="642">642</span>
 <span id="643">643</span>
 <span id="644">644</span>
 <span id="645">645</span>
 <span id="646">646</span>
 <span id="647">647</span>
 <span id="648">648</span>
 <span id="649">649</span>
 <span id="650">650</span>
 <span id="651">651</span>
 <span id="652">652</span>
 <span id="653">653</span>
 <span id="654">654</span>
 <span id="655">655</span>
 <span id="656">656</span>
 <span id="657">657</span>
 <span id="658">658</span>
 <span id="659">659</span>
 <span id="660">660</span>
 <span id="661">661</span>
 <span id="662">662</span>
 <span id="663">663</span>
 <span id="664">664</span>
 <span id="665">665</span>
 <span id="666">666</span>
 <span id="667">667</span>
 <span id="668">668</span>
 <span id="669">669</span>
 <span id="670">670</span>
 <span id="671">671</span>
 <span id="672">672</span>
 <span id="673">673</span>
 <span id="674">674</span>
 <span id="675">675</span>
 <span id="676">676</span>
 <span id="677">677</span>
 <span id="678">678</span>
 <span id="679">679</span>
 <span id="680">680</span>
 <span id="681">681</span>
 <span id="682">682</span>
 <span id="683">683</span>
 <span id="684">684</span>
 <span id="685">685</span>
 <span id="686">686</span>
 <span id="687">687</span>
 <span id="688">688</span>
 <span id="689">689</span>
 <span id="690">690</span>
 <span id="691">691</span>
 <span id="692">692</span>
 <span id="693">693</span>
 <span id="694">694</span>
 <span id="695">695</span>
 <span id="696">696</span>
 <span id="697">697</span>
 <span id="698">698</span>
 <span id="699">699</span>
 <span id="700">700</span>
 <span id="701">701</span>
 <span id="702">702</span>
 <span id="703">703</span>
 <span id="704">704</span>
 <span id="705">705</span>
 <span id="706">706</span>
 <span id="707">707</span>
 <span id="708">708</span>
 <span id="709">709</span>
 <span id="710">710</span>
 <span id="711">711</span>
 <span id="712">712</span>
 <span id="713">713</span>
 <span id="714">714</span>
 <span id="715">715</span>
 <span id="716">716</span>
 <span id="717">717</span>
 <span id="718">718</span>
 <span id="719">719</span>
 <span id="720">720</span>
 </pre><pre class="rust"><code><span class="comment">// Copyright 2015 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 &quot;AS IS&quot; 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 crate</span>::{der, Error};
 <span class="kw">use </span>ring::signature;

 <span class="doccomment">/// X.509 certificates and related items that are signed are almost always
 /// encoded in the format &quot;tbs||signatureAlgorithm||signature&quot;. This structure
 /// captures this pattern.
 </span><span class="kw">pub struct </span>SignedData&lt;<span class="lifetime">&#39;a</span>&gt; {
     <span class="doccomment">/// The signed data. This would be `tbsCertificate` in the case of an X.509
     /// certificate, `tbsResponseData` in the case of an OCSP response, and the
     /// data nested in the `digitally-signed` construct for TLS 1.2 signed
     /// data.
     </span>data: untrusted::Input&lt;<span class="lifetime">&#39;a</span>&gt;,

     <span class="doccomment">/// The value of the `AlgorithmIdentifier`. This would be
     /// `signatureAlgorithm` in the case of an X.509 certificate or OCSP
     /// response. This would have to be synthesized in the case of TLS 1.2
     /// signed data, since TLS does not identify algorithms by ASN.1 OIDs.
     </span><span class="kw">pub</span>(<span class="kw">crate</span>) algorithm: untrusted::Input&lt;<span class="lifetime">&#39;a</span>&gt;,

     <span class="doccomment">/// The value of the signature. This would be `signature` in an X.509
     /// certificate or OCSP response. This would be the value of
     /// `DigitallySigned.signature` for TLS 1.2 signed data.
     </span>signature: untrusted::Input&lt;<span class="lifetime">&#39;a</span>&gt;,
 }

 <span class="doccomment">/// Parses the concatenation of &quot;tbs||signatureAlgorithm||signature&quot; that
 /// is common in the X.509 certificate and OCSP response syntaxes.
 ///
 /// X.509 Certificates (RFC 5280) look like this:
 ///
 /// ```ASN.1
 /// Certificate (SEQUENCE) {
 ///     tbsCertificate TBSCertificate,
 ///     signatureAlgorithm AlgorithmIdentifier,
 ///     signatureValue BIT STRING
 /// }
 ///
 /// OCSP responses (RFC 6960) look like this:
 /// ```ASN.1
 /// BasicOCSPResponse {
 ///     tbsResponseData ResponseData,
 ///     signatureAlgorithm AlgorithmIdentifier,
 ///     signature BIT STRING,
 ///     certs [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL
 /// }
 /// ```
 ///
 /// Note that this function does NOT parse the outermost `SEQUENCE` or the
 /// `certs` value.
 ///
 /// The return value&#39;s first component is the contents of
 /// `tbsCertificate`/`tbsResponseData`; the second component is a `SignedData`
 /// structure that can be passed to `verify_signed_data`.
 </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>parse_signed_data&lt;<span class="lifetime">&#39;a</span>&gt;(
     der: <span class="kw-2">&amp;mut </span>untrusted::Reader&lt;<span class="lifetime">&#39;a</span>&gt;,
 ) -&gt; <span class="prelude-ty">Result</span>&lt;(untrusted::Input&lt;<span class="lifetime">&#39;a</span>&gt;, SignedData&lt;<span class="lifetime">&#39;a</span>&gt;), Error&gt; {
     <span class="kw">let </span>(data, tbs) =
         der.read_partial(|input| der::expect_tag_and_get_value(input, der::Tag::Sequence))<span class="question-mark">?</span>;
     <span class="kw">let </span>algorithm = der::expect_tag_and_get_value(der, der::Tag::Sequence)<span class="question-mark">?</span>;
     <span class="kw">let </span>signature = der::bit_string_with_no_unused_bits(der)<span class="question-mark">?</span>;

     <span class="prelude-val">Ok</span>((
         tbs,
         SignedData {
             data,
             algorithm,
             signature,
         },
     ))
 }

 <span class="doccomment">/// Verify `signed_data` using the public key in the DER-encoded
 /// SubjectPublicKeyInfo `spki` using one of the algorithms in
 /// `supported_algorithms`.
 ///
 /// The algorithm is chosen based on the algorithm information encoded in the
 /// algorithm identifiers in `public_key` and `signed_data.algorithm`. The
 /// ordering of the algorithms in `supported_algorithms` does not really matter,
 /// but generally more common algorithms should go first, as it is scanned
 /// linearly for matches.
 </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>verify_signed_data(
     supported_algorithms: <span class="kw-2">&amp;</span>[<span class="kw-2">&amp;</span>SignatureAlgorithm], spki_value: untrusted::Input,
     signed_data: <span class="kw-2">&amp;</span>SignedData,
 ) -&gt; <span class="prelude-ty">Result</span>&lt;(), Error&gt; {
     <span class="comment">// We need to verify the signature in `signed_data` using the public key
     // in `public_key`. In order to know which *ring* signature verification
     // algorithm to use, we need to know the public key algorithm (ECDSA,
     // RSA PKCS#1, etc.), the curve (if applicable), and the digest algorithm.
     // `signed_data` identifies only the public key algorithm and the digest
     // algorithm, and `public_key` identifies only the public key algorithm and
     // the curve (if any). Thus, we have to combine information from both
     // inputs to figure out which `ring::signature::VerificationAlgorithm` to
     // use to verify the signature.
     //
     // This is all further complicated by the fact that we don&#39;t have any
     // implicit knowledge about any algorithms or identifiers, since all of
     // that information is encoded in `supported_algorithms.` In particular, we
     // avoid hard-coding any of that information so that (link-time) dead code
     // elimination will work effectively in eliminating code for unused
     // algorithms.

     // Parse the signature.
     //
     </span><span class="kw">let </span><span class="kw-2">mut </span>found_signature_alg_match = <span class="bool-val">false</span>;
     <span class="kw">for </span>supported_alg <span class="kw">in </span>supported_algorithms.iter().filter(|alg| {
         alg.signature_alg_id
             .matches_algorithm_id_value(signed_data.algorithm)
     }) {
         <span class="kw">match </span>verify_signature(
             supported_alg,
             spki_value,
             signed_data.data,
             signed_data.signature,
         ) {
             <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey) =&gt; {
                 found_signature_alg_match = <span class="bool-val">true</span>;
                 <span class="kw">continue</span>;
             },
             result =&gt; {
                 <span class="kw">return </span>result;
             },
         }
     }

     <span class="kw">if </span>found_signature_alg_match {
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     } <span class="kw">else </span>{
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     }
 }

 <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>verify_signature(
     signature_alg: <span class="kw-2">&amp;</span>SignatureAlgorithm, spki_value: untrusted::Input, msg: untrusted::Input,
     signature: untrusted::Input,
 ) -&gt; <span class="prelude-ty">Result</span>&lt;(), Error&gt; {
     <span class="kw">let </span>spki = parse_spki_value(spki_value)<span class="question-mark">?</span>;
     <span class="kw">if </span>!signature_alg
         .public_key_alg_id
         .matches_algorithm_id_value(spki.algorithm_id_value)
     {
         <span class="kw">return </span><span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey);
     }
     signature::UnparsedPublicKey::new(
         signature_alg.verification_alg,
         spki.key_value.as_slice_less_safe(),
     )
     .verify(msg.as_slice_less_safe(), signature.as_slice_less_safe())
     .map_err(|<span class="kw">_</span>| Error::InvalidSignatureForPublicKey)
 }

 <span class="kw">struct </span>SubjectPublicKeyInfo&lt;<span class="lifetime">&#39;a</span>&gt; {
     algorithm_id_value: untrusted::Input&lt;<span class="lifetime">&#39;a</span>&gt;,
     key_value: untrusted::Input&lt;<span class="lifetime">&#39;a</span>&gt;,
 }

 <span class="comment">// Parse the public key into an algorithm OID, an optional curve OID, and the
 // key value. The caller needs to check whether these match the
 // `PublicKeyAlgorithm` for the `SignatureAlgorithm` that is matched when
 // parsing the signature.
 </span><span class="kw">fn </span>parse_spki_value(input: untrusted::Input) -&gt; <span class="prelude-ty">Result</span>&lt;SubjectPublicKeyInfo, Error&gt; {
     input.read_all(Error::BadDER, |input| {
         <span class="kw">let </span>algorithm_id_value = der::expect_tag_and_get_value(input, der::Tag::Sequence)<span class="question-mark">?</span>;
         <span class="kw">let </span>key_value = der::bit_string_with_no_unused_bits(input)<span class="question-mark">?</span>;
         <span class="prelude-val">Ok</span>(SubjectPublicKeyInfo {
             algorithm_id_value,
             key_value,
         })
     })
 }

 <span class="doccomment">/// A signature algorithm.
 </span><span class="kw">pub struct </span>SignatureAlgorithm {
     public_key_alg_id: AlgorithmIdentifier,
     signature_alg_id: AlgorithmIdentifier,
     verification_alg: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span><span class="kw">dyn </span>signature::VerificationAlgorithm,
 }

 <span class="doccomment">/// ECDSA signatures using the P-256 curve and SHA-256.
 </span><span class="kw">pub static </span>ECDSA_P256_SHA256: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: ECDSA_P256,
     signature_alg_id: ECDSA_SHA256,
     verification_alg: <span class="kw-2">&amp;</span>signature::ECDSA_P256_SHA256_ASN1,
 };

 <span class="doccomment">/// ECDSA signatures using the P-256 curve and SHA-384. Deprecated.
 </span><span class="kw">pub static </span>ECDSA_P256_SHA384: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: ECDSA_P256,
     signature_alg_id: ECDSA_SHA384,
     verification_alg: <span class="kw-2">&amp;</span>signature::ECDSA_P256_SHA384_ASN1,
 };

 <span class="doccomment">/// ECDSA signatures using the P-384 curve and SHA-256. Deprecated.
 </span><span class="kw">pub static </span>ECDSA_P384_SHA256: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: ECDSA_P384,
     signature_alg_id: ECDSA_SHA256,
     verification_alg: <span class="kw-2">&amp;</span>signature::ECDSA_P384_SHA256_ASN1,
 };

 <span class="doccomment">/// ECDSA signatures using the P-384 curve and SHA-384.
 </span><span class="kw">pub static </span>ECDSA_P384_SHA384: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: ECDSA_P384,
     signature_alg_id: ECDSA_SHA384,
     verification_alg: <span class="kw-2">&amp;</span>signature::ECDSA_P384_SHA384_ASN1,
 };

 <span class="doccomment">/// RSA PKCS#1 1.5 signatures using SHA-256 for keys of 2048-8192 bits.
 </span><span class="kw">pub static </span>RSA_PKCS1_2048_8192_SHA256: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PKCS1_SHA256,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PKCS1_2048_8192_SHA256,
 };

 <span class="doccomment">/// RSA PKCS#1 1.5 signatures using SHA-384 for keys of 2048-8192 bits.
 </span><span class="kw">pub static </span>RSA_PKCS1_2048_8192_SHA384: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PKCS1_SHA384,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PKCS1_2048_8192_SHA384,
 };

 <span class="doccomment">/// RSA PKCS#1 1.5 signatures using SHA-512 for keys of 2048-8192 bits.
 </span><span class="kw">pub static </span>RSA_PKCS1_2048_8192_SHA512: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PKCS1_SHA512,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PKCS1_2048_8192_SHA512,
 };

 <span class="doccomment">/// RSA PKCS#1 1.5 signatures using SHA-384 for keys of 3072-8192 bits.
 </span><span class="kw">pub static </span>RSA_PKCS1_3072_8192_SHA384: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PKCS1_SHA384,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PKCS1_3072_8192_SHA384,
 };

 <span class="doccomment">/// RSA PSS signatures using SHA-256 for keys of 2048-8192 bits and of
 /// type rsaEncryption; see [RFC 4055 Section 1.2].
 ///
 /// [RFC 4055 Section 1.2]: https://tools.ietf.org/html/rfc4055#section-1.2
 </span><span class="kw">pub static </span>RSA_PSS_2048_8192_SHA256_LEGACY_KEY: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PSS_SHA256,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PSS_2048_8192_SHA256,
 };

 <span class="doccomment">/// RSA PSS signatures using SHA-384 for keys of 2048-8192 bits and of
 /// type rsaEncryption; see [RFC 4055 Section 1.2].
 ///
 /// [RFC 4055 Section 1.2]: https://tools.ietf.org/html/rfc4055#section-1.2
 </span><span class="kw">pub static </span>RSA_PSS_2048_8192_SHA384_LEGACY_KEY: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PSS_SHA384,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PSS_2048_8192_SHA384,
 };

 <span class="doccomment">/// RSA PSS signatures using SHA-512 for keys of 2048-8192 bits and of
 /// type rsaEncryption; see [RFC 4055 Section 1.2].
 ///
 /// [RFC 4055 Section 1.2]: https://tools.ietf.org/html/rfc4055#section-1.2
 </span><span class="kw">pub static </span>RSA_PSS_2048_8192_SHA512_LEGACY_KEY: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: RSA_ENCRYPTION,
     signature_alg_id: RSA_PSS_SHA512,
     verification_alg: <span class="kw-2">&amp;</span>signature::RSA_PSS_2048_8192_SHA512,
 };

 <span class="doccomment">/// ED25519 signatures according to RFC 8410
 </span><span class="kw">pub static </span>ED25519: SignatureAlgorithm = SignatureAlgorithm {
     public_key_alg_id: ED_25519,
     signature_alg_id: ED_25519,
     verification_alg: <span class="kw-2">&amp;</span>signature::ED25519,
 };

 <span class="kw">struct </span>AlgorithmIdentifier {
     asn1_id_value: untrusted::Input&lt;<span class="lifetime">&#39;static</span>&gt;,
 }

 <span class="kw">impl </span>AlgorithmIdentifier {
     <span class="kw">fn </span>matches_algorithm_id_value(<span class="kw-2">&amp;</span><span class="self">self</span>, encoded: untrusted::Input) -&gt; bool {
         encoded == <span class="self">self</span>.asn1_id_value
     }
 }

 <span class="comment">// See src/data/README.md.

 </span><span class="kw">const </span>ECDSA_P256: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-ecdsa-p256.der&quot;</span>)),
 };

 <span class="kw">const </span>ECDSA_P384: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-ecdsa-p384.der&quot;</span>)),
 };

 <span class="kw">const </span>ECDSA_SHA256: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-ecdsa-sha256.der&quot;</span>)),
 };

 <span class="kw">const </span>ECDSA_SHA384: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-ecdsa-sha384.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_ENCRYPTION: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-encryption.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_PKCS1_SHA256: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-pkcs1-sha256.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_PKCS1_SHA384: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-pkcs1-sha384.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_PKCS1_SHA512: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-pkcs1-sha512.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_PSS_SHA256: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-pss-sha256.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_PSS_SHA384: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-pss-sha384.der&quot;</span>)),
 };

 <span class="kw">const </span>RSA_PSS_SHA512: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-rsa-pss-sha512.der&quot;</span>)),
 };

 <span class="kw">const </span>ED_25519: AlgorithmIdentifier = AlgorithmIdentifier {
     asn1_id_value: untrusted::Input::from(<span class="macro">include_bytes!</span>(<span class="string">&quot;data/alg-ed25519.der&quot;</span>)),
 };

 <span class="attribute">#[cfg(test)]
 </span><span class="kw">mod </span>tests {
     <span class="kw">use crate</span>::{der, signed_data, Error};
     <span class="kw">use </span>base64;

     <span class="kw">use </span>std::{<span class="self">self</span>, io::BufRead, string::String, vec::Vec};

     <span class="comment">// TODO: The expected results need to be modified for SHA-1 deprecation.

     </span><span class="macro">macro_rules! </span>test_verify_signed_data {
         (<span class="macro-nonterminal">$fn_name</span>:ident, <span class="macro-nonterminal">$file_name</span>:expr, <span class="macro-nonterminal">$expected_result</span>:expr) =&gt; {
             <span class="attribute">#[test]
             </span><span class="kw">fn </span><span class="macro-nonterminal">$fn_name</span>() { test_verify_signed_data(<span class="macro-nonterminal">$file_name</span>, <span class="macro-nonterminal">$expected_result</span>); }
         };
     }

     <span class="kw">fn </span>test_verify_signed_data(file_name: <span class="kw-2">&amp;</span>str, expected_result: <span class="prelude-ty">Result</span>&lt;(), Error&gt;) {
         <span class="kw">let </span>tsd = parse_test_signed_data(file_name);
         <span class="kw">let </span>spki_value = untrusted::Input::from(<span class="kw-2">&amp;</span>tsd.spki);
         <span class="kw">let </span>spki_value = spki_value
             .read_all(Error::BadDER, |input| {
                 der::expect_tag_and_get_value(input, der::Tag::Sequence)
             })
             .unwrap();

         <span class="comment">// we can&#39;t use `parse_signed_data` because it requires `data`
         // to be an ASN.1 SEQUENCE, and that isn&#39;t the case with
         // Chromium&#39;s test data. TODO: The test data set should be
         // expanded with SEQUENCE-wrapped data so that we can actually
         // test `parse_signed_data`.

         </span><span class="kw">let </span>algorithm = untrusted::Input::from(<span class="kw-2">&amp;</span>tsd.algorithm);
         <span class="kw">let </span>algorithm = algorithm
             .read_all(Error::BadDER, |input| {
                 der::expect_tag_and_get_value(input, der::Tag::Sequence)
             })
             .unwrap();

         <span class="kw">let </span>signature = untrusted::Input::from(<span class="kw-2">&amp;</span>tsd.signature);
         <span class="kw">let </span>signature = signature
             .read_all(Error::BadDER, |input| {
                 der::bit_string_with_no_unused_bits(input)
             })
             .unwrap();

         <span class="kw">let </span>signed_data = signed_data::SignedData {
             data: untrusted::Input::from(<span class="kw-2">&amp;</span>tsd.data),
             algorithm,
             signature,
         };

         <span class="macro">assert_eq!</span>(
             expected_result,
             signed_data::verify_signed_data(
                 SUPPORTED_ALGORITHMS_IN_TESTS,
                 spki_value,
                 <span class="kw-2">&amp;</span>signed_data
             )
         );
     }

     <span class="comment">// XXX: This is testing code that isn&#39;t even in this module.
     </span><span class="macro">macro_rules! </span>test_verify_signed_data_signature_outer {
         (<span class="macro-nonterminal">$fn_name</span>:ident, <span class="macro-nonterminal">$file_name</span>:expr, <span class="macro-nonterminal">$expected_result</span>:expr) =&gt; {
             <span class="attribute">#[test]
             </span><span class="kw">fn </span><span class="macro-nonterminal">$fn_name</span>() { test_verify_signed_data_signature_outer(<span class="macro-nonterminal">$file_name</span>, <span class="macro-nonterminal">$expected_result</span>); }
         };
     }

     <span class="kw">fn </span>test_verify_signed_data_signature_outer(file_name: <span class="kw-2">&amp;</span>str, expected_error: Error) {
         <span class="kw">let </span>tsd = parse_test_signed_data(file_name);
         <span class="kw">let </span>signature = untrusted::Input::from(<span class="kw-2">&amp;</span>tsd.signature);
         <span class="macro">assert_eq!</span>(
             <span class="prelude-val">Err</span>(expected_error),
             signature.read_all(Error::BadDER, |input| {
                 der::bit_string_with_no_unused_bits(input)
             })
         );
     }

     <span class="comment">// XXX: This is testing code that is not even in this module.
     </span><span class="macro">macro_rules! </span>test_parse_spki_bad_outer {
         (<span class="macro-nonterminal">$fn_name</span>:ident, <span class="macro-nonterminal">$file_name</span>:expr, <span class="macro-nonterminal">$error</span>:expr) =&gt; {
             <span class="attribute">#[test]
             </span><span class="kw">fn </span><span class="macro-nonterminal">$fn_name</span>() { test_parse_spki_bad_outer(<span class="macro-nonterminal">$file_name</span>, <span class="macro-nonterminal">$error</span>) }
         };
     }

     <span class="kw">fn </span>test_parse_spki_bad_outer(file_name: <span class="kw-2">&amp;</span>str, expected_error: Error) {
         <span class="kw">let </span>tsd = parse_test_signed_data(file_name);
         <span class="kw">let </span>spki = untrusted::Input::from(<span class="kw-2">&amp;</span>tsd.spki);
         <span class="macro">assert_eq!</span>(
             <span class="prelude-val">Err</span>(expected_error),
             spki.read_all(Error::BadDER, |input| {
                 der::expect_tag_and_get_value(input, der::Tag::Sequence)
             })
         );
     }

     <span class="comment">// XXX: Some of the BadDER tests should have better error codes, maybe?

     // XXX: We should have a variant of this test with a SHA-256 digest that gives
     // `Error::UnsupportedSignatureAlgorithmForPublicKey`.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_prime256v1_sha512_spki_params_null,
         <span class="string">&quot;ecdsa-prime256v1-sha512-spki-params-null.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data_signature_outer!</span>(
         test_ecdsa_prime256v1_sha512_unused_bits_signature,
         <span class="string">&quot;ecdsa-prime256v1-sha512-unused-bits-signature.pem&quot;</span>,
         Error::BadDER
     );
     <span class="comment">// XXX: We should have a variant of this test with a SHA-256 digest that gives
     // `Error::UnsupportedSignatureAlgorithmForPublicKey`.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_prime256v1_sha512_using_ecdh_key,
         <span class="string">&quot;ecdsa-prime256v1-sha512-using-ecdh-key.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="comment">// XXX: We should have a variant of this test with a SHA-256 digest that gives
     // `Error::UnsupportedSignatureAlgorithmForPublicKey`.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_prime256v1_sha512_using_ecmqv_key,
         <span class="string">&quot;ecdsa-prime256v1-sha512-using-ecmqv-key.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_prime256v1_sha512_using_rsa_algorithm,
         <span class="string">&quot;ecdsa-prime256v1-sha512-using-rsa-algorithm.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     );
     <span class="comment">// XXX: We should have a variant of this test with a SHA-256 digest that gives
     // `Error::InvalidSignatureForPublicKey`.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_prime256v1_sha512_wrong_signature_format,
         <span class="string">&quot;ecdsa-prime256v1-sha512-wrong-signature-format.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="comment">// Differs from Chromium because we don&#39;t support P-256 with SHA-512.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_prime256v1_sha512,
         <span class="string">&quot;ecdsa-prime256v1-sha512.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_secp384r1_sha256_corrupted_data,
         <span class="string">&quot;ecdsa-secp384r1-sha256-corrupted-data.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::InvalidSignatureForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_secp384r1_sha256,
         <span class="string">&quot;ecdsa-secp384r1-sha256.pem&quot;</span>,
         <span class="prelude-val">Ok</span>(())
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_ecdsa_using_rsa_key,
         <span class="string">&quot;ecdsa-using-rsa-key.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     );

     <span class="macro">test_parse_spki_bad_outer!</span>(
         test_rsa_pkcs1_sha1_bad_key_der_length,
         <span class="string">&quot;rsa-pkcs1-sha1-bad-key-der-length.pem&quot;</span>,
         Error::BadDER
     );
     <span class="macro">test_parse_spki_bad_outer!</span>(
         test_rsa_pkcs1_sha1_bad_key_der_null,
         <span class="string">&quot;rsa-pkcs1-sha1-bad-key-der-null.pem&quot;</span>,
         Error::BadDER
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha1_key_params_absent,
         <span class="string">&quot;rsa-pkcs1-sha1-key-params-absent.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha1_using_pss_key_no_params,
         <span class="string">&quot;rsa-pkcs1-sha1-using-pss-key-no-params.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha1_wrong_algorithm,
         <span class="string">&quot;rsa-pkcs1-sha1-wrong-algorithm.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::InvalidSignatureForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha1,
         <span class="string">&quot;rsa-pkcs1-sha1.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="comment">// XXX: RSA PKCS#1 with SHA-1 is a supported algorithm, but we only accept
     // 2048-8192 bit keys, and this test file is using a 1024 bit key. Thus,
     // our results differ from Chromium&#39;s. TODO: this means we need a 2048+ bit
     // version of this test.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha256,
         <span class="string">&quot;rsa-pkcs1-sha256.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::InvalidSignatureForPublicKey)
     );
     <span class="macro">test_parse_spki_bad_outer!</span>(
         test_rsa_pkcs1_sha256_key_encoded_ber,
         <span class="string">&quot;rsa-pkcs1-sha256-key-encoded-ber.pem&quot;</span>,
         Error::BadDER
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha256_spki_non_null_params,
         <span class="string">&quot;rsa-pkcs1-sha256-spki-non-null-params.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha256_using_ecdsa_algorithm,
         <span class="string">&quot;rsa-pkcs1-sha256-using-ecdsa-algorithm.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pkcs1_sha256_using_id_ea_rsa,
         <span class="string">&quot;rsa-pkcs1-sha256-using-id-ea-rsa.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     );

     <span class="comment">// Chromium&#39;s PSS test are for parameter combinations we don&#39;t support.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha1_salt20_using_pss_key_no_params,
         <span class="string">&quot;rsa-pss-sha1-salt20-using-pss-key-no-params.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha1_salt20_using_pss_key_with_null_params,
         <span class="string">&quot;rsa-pss-sha1-salt20-using-pss-key-with-null-params.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha1_salt20,
         <span class="string">&quot;rsa-pss-sha1-salt20.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha1_wrong_salt,
         <span class="string">&quot;rsa-pss-sha1-wrong-salt.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha256_mgf1_sha512_salt33,
         <span class="string">&quot;rsa-pss-sha256-mgf1-sha512-salt33.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha256_salt10_using_pss_key_with_params,
         <span class="string">&quot;rsa-pss-sha256-salt10-using-pss-key-with-params.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha256_salt10_using_pss_key_with_wrong_params,
         <span class="string">&quot;rsa-pss-sha256-salt10-using-pss-key-with-wrong-params.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha256_salt10,
         <span class="string">&quot;rsa-pss-sha256-salt10.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithm)
     );

     <span class="comment">// Our PSS tests that should work.
     </span><span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha256_salt32,
         <span class="string">&quot;ours/rsa-pss-sha256-salt32.pem&quot;</span>,
         <span class="prelude-val">Ok</span>(())
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha384_salt48,
         <span class="string">&quot;ours/rsa-pss-sha384-salt48.pem&quot;</span>,
         <span class="prelude-val">Ok</span>(())
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha512_salt64,
         <span class="string">&quot;ours/rsa-pss-sha512-salt64.pem&quot;</span>,
         <span class="prelude-val">Ok</span>(())
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha256_salt32_corrupted_data,
         <span class="string">&quot;ours/rsa-pss-sha256-salt32-corrupted-data.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::InvalidSignatureForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha384_salt48_corrupted_data,
         <span class="string">&quot;ours/rsa-pss-sha384-salt48-corrupted-data.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::InvalidSignatureForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_pss_sha512_salt64_corrupted_data,
         <span class="string">&quot;ours/rsa-pss-sha512-salt64-corrupted-data.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::InvalidSignatureForPublicKey)
     );

     <span class="macro">test_verify_signed_data!</span>(
         test_rsa_using_ec_key,
         <span class="string">&quot;rsa-using-ec-key.pem&quot;</span>,
         <span class="prelude-val">Err</span>(Error::UnsupportedSignatureAlgorithmForPublicKey)
     );
     <span class="macro">test_verify_signed_data!</span>(
         test_rsa2048_pkcs1_sha512,
         <span class="string">&quot;rsa2048-pkcs1-sha512.pem&quot;</span>,
         <span class="prelude-val">Ok</span>(())
     );

     <span class="kw">struct </span>TestSignedData {
         spki: Vec&lt;u8&gt;,
         data: Vec&lt;u8&gt;,
         algorithm: Vec&lt;u8&gt;,
         signature: Vec&lt;u8&gt;,
     }

     <span class="kw">fn </span>parse_test_signed_data(file_name: <span class="kw-2">&amp;</span>str) -&gt; TestSignedData {
         <span class="kw">let </span>path = std::path::PathBuf::from(<span class="string">&quot;third-party/chromium/data/verify_signed_data&quot;</span>)
             .join(file_name);
         <span class="kw">let </span>file = std::fs::File::open(path).unwrap();
         <span class="kw">let </span><span class="kw-2">mut </span>lines = std::io::BufReader::new(<span class="kw-2">&amp;</span>file).lines();

         <span class="kw">let </span>spki = read_pem_section(<span class="kw-2">&amp;mut </span>lines, <span class="string">&quot;PUBLIC KEY&quot;</span>);
         <span class="kw">let </span>algorithm = read_pem_section(<span class="kw-2">&amp;mut </span>lines, <span class="string">&quot;ALGORITHM&quot;</span>);
         <span class="kw">let </span>data = read_pem_section(<span class="kw-2">&amp;mut </span>lines, <span class="string">&quot;DATA&quot;</span>);
         <span class="kw">let </span>signature = read_pem_section(<span class="kw-2">&amp;mut </span>lines, <span class="string">&quot;SIGNATURE&quot;</span>);

         TestSignedData {
             spki,
             data,
             algorithm,
             signature,
         }
     }

     <span class="kw">type </span>FileLines&lt;<span class="lifetime">&#39;a</span>&gt; = std::io::Lines&lt;std::io::BufReader&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>std::fs::File&gt;&gt;;

     <span class="kw">fn </span>read_pem_section(lines: <span class="kw-2">&amp;mut </span>FileLines, section_name: <span class="kw-2">&amp;</span>str) -&gt; Vec&lt;u8&gt; {
         <span class="comment">// Skip comments and header
         </span><span class="kw">let </span>begin_section = <span class="macro">format!</span>(<span class="string">&quot;-----BEGIN {}-----&quot;</span>, section_name);
         <span class="kw">loop </span>{
             <span class="kw">let </span>line = lines.next().unwrap().unwrap();
             <span class="kw">if </span>line == begin_section {
                 <span class="kw">break</span>;
             }
         }

         <span class="kw">let </span><span class="kw-2">mut </span>base64 = String::new();

         <span class="kw">let </span>end_section = <span class="macro">format!</span>(<span class="string">&quot;-----END {}-----&quot;</span>, section_name);
         <span class="kw">loop </span>{
             <span class="kw">let </span>line = lines.next().unwrap().unwrap();
             <span class="kw">if </span>line == end_section {
                 <span class="kw">break</span>;
             }
             base64.push_str(<span class="kw-2">&amp;</span>line);
         }

         base64::decode(<span class="kw-2">&amp;</span>base64).unwrap()
     }

     <span class="kw">static </span>SUPPORTED_ALGORITHMS_IN_TESTS: <span class="kw-2">&amp;</span>[<span class="kw-2">&amp;</span>signed_data::SignatureAlgorithm] = <span class="kw-2">&amp;</span>[
         <span class="comment">// Reasonable algorithms.
         </span><span class="kw-2">&amp;</span>signed_data::RSA_PKCS1_2048_8192_SHA256,
         <span class="kw-2">&amp;</span>signed_data::ECDSA_P256_SHA256,
         <span class="kw-2">&amp;</span>signed_data::ECDSA_P384_SHA384,
         <span class="kw-2">&amp;</span>signed_data::RSA_PKCS1_2048_8192_SHA384,
         <span class="kw-2">&amp;</span>signed_data::RSA_PKCS1_2048_8192_SHA512,
         <span class="kw-2">&amp;</span>signed_data::RSA_PKCS1_3072_8192_SHA384,
         <span class="kw-2">&amp;</span>signed_data::RSA_PSS_2048_8192_SHA256_LEGACY_KEY,
         <span class="kw-2">&amp;</span>signed_data::RSA_PSS_2048_8192_SHA384_LEGACY_KEY,
         <span class="kw-2">&amp;</span>signed_data::RSA_PSS_2048_8192_SHA512_LEGACY_KEY,
         <span class="kw-2">&amp;</span>signed_data::ED25519,
         <span class="comment">// Algorithms deprecated because they are annoying (P-521) or because
         // they are nonsensical combinations.
         </span><span class="kw-2">&amp;</span>signed_data::ECDSA_P256_SHA384, <span class="comment">// Truncates digest.
         </span><span class="kw-2">&amp;</span>signed_data::ECDSA_P384_SHA256, <span class="comment">// Digest is unnecessarily short.
     </span>];
 }
 </code></pre></div>
 </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="webpki" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>