| <!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/git/checkouts/incubator-teaclave-crates-c8106113f74feefc/ede1f68/rustls-0.19.1/rustls/src/verify.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>verify.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="../../rustls/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="../../rustls/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> |
| </pre><pre class="rust"><code><span class="kw">use </span>sct; |
| <span class="kw">use </span>std; |
| <span class="kw">use </span>std::sync::Arc; |
| <span class="kw">use </span>webpki; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::anchors::OwnedTrustAnchor; |
| <span class="kw">use </span><span class="kw">crate</span>::anchors::{DistinguishedNames, RootCertStore}; |
| <span class="kw">use </span><span class="kw">crate</span>::error::TLSError; |
| <span class="kw">use </span><span class="kw">crate</span>::key::Certificate; |
| <span class="attribute">#[cfg(feature = <span class="string">"logging"</span>)] |
| </span><span class="kw">use </span><span class="kw">crate</span>::log::{debug, trace, warn}; |
| <span class="kw">use </span><span class="kw">crate</span>::msgs::enums::SignatureScheme; |
| <span class="kw">use </span><span class="kw">crate</span>::msgs::handshake::DigitallySignedStruct; |
| <span class="kw">use </span><span class="kw">crate</span>::msgs::handshake::SCTList; |
| <span class="attribute">#[cfg(target_vendor = <span class="string">"teaclave"</span>)] |
| </span><span class="kw">use </span>std::untrusted::time::SystemTimeEx; |
| |
| <span class="kw">type </span>SignatureAlgorithms = <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>webpki::SignatureAlgorithm]; |
| |
| <span class="doccomment">/// Which signature verification mechanisms we support. No particular |
| /// order. |
| </span><span class="kw">static </span>SUPPORTED_SIG_ALGS: SignatureAlgorithms = <span class="kw-2">&</span>[ |
| <span class="kw-2">&</span>webpki::ECDSA_P256_SHA256, |
| <span class="kw-2">&</span>webpki::ECDSA_P256_SHA384, |
| <span class="kw-2">&</span>webpki::ECDSA_P384_SHA256, |
| <span class="kw-2">&</span>webpki::ECDSA_P384_SHA384, |
| <span class="kw-2">&</span>webpki::ED25519, |
| <span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA256_LEGACY_KEY, |
| <span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA384_LEGACY_KEY, |
| <span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA512_LEGACY_KEY, |
| <span class="kw-2">&</span>webpki::RSA_PKCS1_2048_8192_SHA256, |
| <span class="kw-2">&</span>webpki::RSA_PKCS1_2048_8192_SHA384, |
| <span class="kw-2">&</span>webpki::RSA_PKCS1_2048_8192_SHA512, |
| <span class="kw-2">&</span>webpki::RSA_PKCS1_3072_8192_SHA384, |
| ]; |
| |
| <span class="doccomment">/// Marker types. These are used to bind the fact some verification |
| /// (certificate chain or handshake signature) has taken place into |
| /// protocol states. We use this to have the compiler check that there |
| /// are no 'goto fail'-style elisions of important checks before we |
| /// reach the traffic stage. |
| /// |
| /// These types are public, but cannot be directly constructed. This |
| /// means their origins can be precisely determined by looking |
| /// for their `assertion` constructors. |
| </span><span class="kw">pub struct </span>HandshakeSignatureValid(()); |
| <span class="kw">impl </span>HandshakeSignatureValid { |
| <span class="doccomment">/// Make a `HandshakeSignatureValid` |
| </span><span class="kw">pub fn </span>assertion() -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ <span class="number">0</span>: () } |
| } |
| } |
| |
| <span class="kw">pub struct </span>FinishedMessageVerified(()); |
| <span class="kw">impl </span>FinishedMessageVerified { |
| <span class="kw">pub fn </span>assertion() -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ <span class="number">0</span>: () } |
| } |
| } |
| |
| <span class="doccomment">/// Zero-sized marker type representing verification of a server cert chain. |
| </span><span class="kw">pub struct </span>ServerCertVerified(()); |
| <span class="kw">impl </span>ServerCertVerified { |
| <span class="doccomment">/// Make a `ServerCertVerified` |
| </span><span class="kw">pub fn </span>assertion() -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ <span class="number">0</span>: () } |
| } |
| } |
| |
| <span class="doccomment">/// Zero-sized marker type representing verification of a client cert chain. |
| </span><span class="kw">pub struct </span>ClientCertVerified(()); |
| <span class="kw">impl </span>ClientCertVerified { |
| <span class="doccomment">/// Make a `ClientCertVerified` |
| </span><span class="kw">pub fn </span>assertion() -> <span class="self">Self </span>{ |
| <span class="self">Self </span>{ <span class="number">0</span>: () } |
| } |
| } |
| |
| <span class="doccomment">/// Something that can verify a server certificate chain, and verify |
| /// signatures made by certificates. |
| </span><span class="kw">pub trait </span>ServerCertVerifier: Send + Sync { |
| <span class="doccomment">/// Verify a the certificate chain `presented_certs` against the roots |
| /// configured in `roots`. Make sure that `dns_name` is quoted by |
| /// the top certificate in the chain. |
| </span><span class="kw">fn </span>verify_server_cert( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| roots: <span class="kw-2">&</span>RootCertStore, |
| presented_certs: <span class="kw-2">&</span>[Certificate], |
| dns_name: webpki::DNSNameRef, |
| ocsp_response: <span class="kw-2">&</span>[u8], |
| ) -> <span class="prelude-ty">Result</span><ServerCertVerified, TLSError>; |
| |
| <span class="doccomment">/// Verify a signature allegedly by the given server certificate. |
| /// |
| /// `message` is not hashed, and needs hashing during the verification. |
| /// The signature and algorithm are within `dss`. `cert` contains the |
| /// public key to use. |
| /// |
| /// `cert` is the same certificate that was previously validated by a |
| /// call to `verify_server_cert`. |
| /// |
| /// If and only if the signature is valid, return HandshakeSignatureValid. |
| /// Otherwise, return an error -- rustls will send an alert and abort the |
| /// connection. |
| /// |
| /// This method is only called for TLS1.2 handshakes. Note that, in TLS1.2, |
| /// SignatureSchemes such as `SignatureScheme::ECDSA_NISTP256_SHA256` are not |
| /// in fact bound to the specific curve implied in their name. |
| /// |
| /// This trait method has a default implementation that uses webpki to verify |
| /// the signature. |
| </span><span class="kw">fn </span>verify_tls12_signature( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| message: <span class="kw-2">&</span>[u8], |
| cert: <span class="kw-2">&</span>Certificate, |
| dss: <span class="kw-2">&</span>DigitallySignedStruct, |
| ) -> <span class="prelude-ty">Result</span><HandshakeSignatureValid, TLSError> { |
| verify_signed_struct(message, cert, dss) |
| } |
| |
| |
| <span class="doccomment">/// Verify a signature allegedly by the given server certificate. |
| /// |
| /// This method is only called for TLS1.3 handshakes. |
| /// |
| /// This method is very similar to `verify_tls12_signature`: but note the |
| /// tighter ECDSA SignatureScheme semantics -- eg `SignatureScheme::ECDSA_NISTP256_SHA256` |
| /// must only validate signatures using public keys on the right curve -- |
| /// rustls does not enforce this requirement for you. |
| /// |
| /// This trait method has a default implementation that uses webpki to verify |
| /// the signature. |
| </span><span class="kw">fn </span>verify_tls13_signature( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| message: <span class="kw-2">&</span>[u8], |
| cert: <span class="kw-2">&</span>Certificate, |
| dss: <span class="kw-2">&</span>DigitallySignedStruct, |
| ) -> <span class="prelude-ty">Result</span><HandshakeSignatureValid, TLSError> { |
| verify_tls13(message, cert, dss) |
| } |
| |
| <span class="doccomment">/// Return the list of SignatureSchemes that this verifier will handle, |
| /// in `verify_tls12_signature` and `verify_tls13_signature` calls. |
| /// |
| /// This should be in priority order, with the most preferred first. |
| /// |
| /// This trait mehod has a default implementation that reflects the schemes |
| /// supported by webpki. |
| </span><span class="kw">fn </span>supported_verify_schemes(<span class="kw-2">&</span><span class="self">self</span>) -> Vec<SignatureScheme> { |
| WebPKIVerifier::verification_schemes() |
| } |
| } |
| |
| <span class="doccomment">/// Something that can verify a client certificate chain |
| </span><span class="kw">pub trait </span>ClientCertVerifier: Send + Sync { |
| <span class="doccomment">/// Returns `true` to enable the server to request a client certificate and |
| /// `false` to skip requesting a client certificate. Defaults to `true`. |
| </span><span class="kw">fn </span>offer_client_auth(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="bool-val">true |
| </span>} |
| |
| <span class="doccomment">/// Return `Some(true)` to require a client certificate and `Some(false)` to make |
| /// client authentication optional. Return `None` to abort the connection. |
| /// Defaults to `Some(self.offer_client_auth())`. |
| /// |
| /// `sni` is the server name quoted by the client in its ClientHello; it has |
| /// been validated as a proper DNS name but is otherwise untrusted. |
| </span><span class="kw">fn </span>client_auth_mandatory(<span class="kw-2">&</span><span class="self">self</span>, _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>) -> <span class="prelude-ty">Option</span><bool> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.offer_client_auth()) |
| } |
| |
| <span class="doccomment">/// Returns the subject names of the client authentication trust anchors to |
| /// share with the client when requesting client authentication. |
| /// |
| /// Return `None` to abort the connection. |
| /// |
| /// `sni` is the server name quoted by the client in its ClientHello; it has |
| /// been validated as a proper DNS name but is otherwise untrusted. |
| </span><span class="kw">fn </span>client_auth_root_subjects( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Option</span><DistinguishedNames>; |
| |
| <span class="doccomment">/// Verify a certificate chain. `presented_certs` is the certificate chain from the client. |
| /// |
| /// `sni` is the server name quoted by the client in its ClientHello; it has |
| /// been validated as a proper DNS name but is otherwise untrusted. |
| </span><span class="kw">fn </span>verify_client_cert( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| presented_certs: <span class="kw-2">&</span>[Certificate], |
| sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Result</span><ClientCertVerified, TLSError>; |
| |
| <span class="doccomment">/// Verify a signature allegedly by the given server certificate. |
| /// |
| /// `message` is not hashed, and needs hashing during the verification. |
| /// The signature and algorithm are within `dss`. `cert` contains the |
| /// public key to use. |
| /// |
| /// `cert` is the same certificate that was previously validated by a |
| /// call to `verify_server_cert`. |
| /// |
| /// If and only if the signature is valid, return HandshakeSignatureValid. |
| /// Otherwise, return an error -- rustls will send an alert and abort the |
| /// connection. |
| /// |
| /// This method is only called for TLS1.2 handshakes. Note that, in TLS1.2, |
| /// SignatureSchemes such as `SignatureScheme::ECDSA_NISTP256_SHA256` are not |
| /// in fact bound to the specific curve implied in their name. |
| /// |
| /// This trait method has a default implementation that uses webpki to verify |
| /// the signature. |
| </span><span class="kw">fn </span>verify_tls12_signature( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| message: <span class="kw-2">&</span>[u8], |
| cert: <span class="kw-2">&</span>Certificate, |
| dss: <span class="kw-2">&</span>DigitallySignedStruct, |
| ) -> <span class="prelude-ty">Result</span><HandshakeSignatureValid, TLSError> { |
| verify_signed_struct(message, cert, dss) |
| } |
| |
| |
| <span class="doccomment">/// Verify a signature allegedly by the given server certificate. |
| /// |
| /// This method is only called for TLS1.3 handshakes. |
| /// |
| /// This method is very similar to `verify_tls12_signature`: but note the |
| /// tighter ECDSA SignatureScheme semantics -- eg `SignatureScheme::ECDSA_NISTP256_SHA256` |
| /// must only validate signatures using public keys on the right curve -- |
| /// rustls does not enforce this requirement for you. |
| /// |
| /// This trait method has a default implementation that uses webpki to verify |
| /// the signature. |
| </span><span class="kw">fn </span>verify_tls13_signature( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| message: <span class="kw-2">&</span>[u8], |
| cert: <span class="kw-2">&</span>Certificate, |
| dss: <span class="kw-2">&</span>DigitallySignedStruct, |
| ) -> <span class="prelude-ty">Result</span><HandshakeSignatureValid, TLSError> { |
| verify_tls13(message, cert, dss) |
| } |
| |
| <span class="doccomment">/// Return the list of SignatureSchemes that this verifier will handle, |
| /// in `verify_tls12_signature` and `verify_tls13_signature` calls. |
| /// |
| /// This should be in priority order, with the most preferred first. |
| /// |
| /// This trait mehod has a default implementation that reflects the schemes |
| /// supported by webpki. |
| </span><span class="kw">fn </span>supported_verify_schemes(<span class="kw-2">&</span><span class="self">self</span>) -> Vec<SignatureScheme> { |
| WebPKIVerifier::verification_schemes() |
| } |
| } |
| |
| <span class="kw">impl </span>ServerCertVerifier <span class="kw">for </span>WebPKIVerifier { |
| <span class="doccomment">/// Will verify the certificate is valid in the following ways: |
| /// - Signed by a trusted `RootCertStore` CA |
| /// - Not Expired |
| /// - Valid for DNS entry |
| /// - OCSP data is present |
| </span><span class="kw">fn </span>verify_server_cert( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| roots: <span class="kw-2">&</span>RootCertStore, |
| presented_certs: <span class="kw-2">&</span>[Certificate], |
| dns_name: webpki::DNSNameRef, |
| ocsp_response: <span class="kw-2">&</span>[u8], |
| ) -> <span class="prelude-ty">Result</span><ServerCertVerified, TLSError> { |
| <span class="kw">let </span>(cert, chain, trustroots) = prepare(roots, presented_certs)<span class="question-mark">?</span>; |
| <span class="kw">let </span>now = (<span class="self">self</span>.time)()<span class="question-mark">?</span>; |
| <span class="kw">let </span>cert = cert |
| .verify_is_valid_tls_server_cert( |
| SUPPORTED_SIG_ALGS, |
| <span class="kw-2">&</span>webpki::TLSServerTrustAnchors(<span class="kw-2">&</span>trustroots), |
| <span class="kw-2">&</span>chain, |
| now, |
| ) |
| .map_err(TLSError::WebPKIError) |
| .map(|<span class="kw">_</span>| cert)<span class="question-mark">?</span>; |
| |
| <span class="kw">if </span>!ocsp_response.is_empty() { |
| <span class="macro">trace!</span>(<span class="string">"Unvalidated OCSP response: {:?}"</span>, ocsp_response.to_vec()); |
| } |
| |
| cert.verify_is_valid_for_dns_name(dns_name) |
| .map_err(TLSError::WebPKIError) |
| .map(|<span class="kw">_</span>| ServerCertVerified::assertion()) |
| } |
| } |
| |
| <span class="doccomment">/// Default `ServerCertVerifier`, see the trait impl for more information. |
| </span><span class="kw">pub struct </span>WebPKIVerifier { |
| <span class="doccomment">/// time provider |
| </span><span class="kw">pub </span>time: <span class="kw">fn</span>() -> <span class="prelude-ty">Result</span><webpki::Time, TLSError>, |
| } |
| |
| <span class="kw">impl </span>WebPKIVerifier { |
| <span class="doccomment">/// Create a new `WebPKIVerifier` |
| </span><span class="kw">pub fn </span>new() -> WebPKIVerifier { |
| WebPKIVerifier { time: try_now } |
| } |
| |
| <span class="doccomment">/// Returns the signature verification methods supported by |
| /// webpki. |
| </span><span class="kw">pub fn </span>verification_schemes() -> Vec<SignatureScheme> { |
| <span class="macro">vec!</span>[ |
| SignatureScheme::ECDSA_NISTP384_SHA384, |
| SignatureScheme::ECDSA_NISTP256_SHA256, |
| SignatureScheme::ED25519, |
| SignatureScheme::RSA_PSS_SHA512, |
| SignatureScheme::RSA_PSS_SHA384, |
| SignatureScheme::RSA_PSS_SHA256, |
| SignatureScheme::RSA_PKCS1_SHA512, |
| SignatureScheme::RSA_PKCS1_SHA384, |
| SignatureScheme::RSA_PKCS1_SHA256, |
| ] |
| } |
| } |
| |
| <span class="kw">type </span>CertChainAndRoots<<span class="lifetime">'a</span>, <span class="lifetime">'b</span>> = ( |
| webpki::EndEntityCert<<span class="lifetime">'a</span>>, |
| Vec<<span class="kw-2">&</span><span class="lifetime">'a </span>[u8]>, |
| Vec<webpki::TrustAnchor<<span class="lifetime">'b</span>>>, |
| ); |
| |
| <span class="kw">fn </span>prepare<<span class="lifetime">'a</span>, <span class="lifetime">'b</span>>( |
| roots: <span class="kw-2">&</span><span class="lifetime">'b </span>RootCertStore, |
| presented_certs: <span class="kw-2">&</span><span class="lifetime">'a </span>[Certificate], |
| ) -> <span class="prelude-ty">Result</span><CertChainAndRoots<<span class="lifetime">'a</span>, <span class="lifetime">'b</span>>, TLSError> { |
| <span class="kw">if </span>presented_certs.is_empty() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(TLSError::NoCertificatesPresented); |
| } |
| |
| <span class="comment">// EE cert must appear first. |
| </span><span class="kw">let </span>cert = webpki::EndEntityCert::from(<span class="kw-2">&</span>presented_certs[<span class="number">0</span>].<span class="number">0</span>).map_err(TLSError::WebPKIError)<span class="question-mark">?</span>; |
| |
| <span class="kw">let </span>chain: Vec<<span class="kw-2">&</span><span class="lifetime">'a </span>[u8]> = presented_certs |
| .iter() |
| .skip(<span class="number">1</span>) |
| .map(|cert| cert.<span class="number">0</span>.as_ref()) |
| .collect(); |
| |
| <span class="kw">let </span>trustroots: Vec<webpki::TrustAnchor> = roots |
| .roots |
| .iter() |
| .map(OwnedTrustAnchor::to_trust_anchor) |
| .collect(); |
| |
| <span class="prelude-val">Ok</span>((cert, chain, trustroots)) |
| } |
| |
| <span class="kw">fn </span>try_now() -> <span class="prelude-ty">Result</span><webpki::Time, TLSError> { |
| webpki::Time::try_from(std::time::SystemTime::now()) |
| .map_err(|<span class="kw">_</span>| TLSError::FailedToGetCurrentTime) |
| } |
| |
| <span class="doccomment">/// A `ClientCertVerifier` that will ensure that every client provides a trusted |
| /// certificate, without any name checking. |
| </span><span class="kw">pub struct </span>AllowAnyAuthenticatedClient { |
| roots: RootCertStore, |
| } |
| |
| <span class="kw">impl </span>AllowAnyAuthenticatedClient { |
| <span class="doccomment">/// Construct a new `AllowAnyAuthenticatedClient`. |
| /// |
| /// `roots` is the list of trust anchors to use for certificate validation. |
| </span><span class="kw">pub fn </span>new(roots: RootCertStore) -> Arc<<span class="kw">dyn </span>ClientCertVerifier> { |
| Arc::new(AllowAnyAuthenticatedClient { roots }) |
| } |
| } |
| |
| <span class="kw">impl </span>ClientCertVerifier <span class="kw">for </span>AllowAnyAuthenticatedClient { |
| <span class="kw">fn </span>offer_client_auth(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="bool-val">true |
| </span>} |
| |
| <span class="kw">fn </span>client_auth_mandatory(<span class="kw-2">&</span><span class="self">self</span>, _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>) -> <span class="prelude-ty">Option</span><bool> { |
| <span class="prelude-val">Some</span>(<span class="bool-val">true</span>) |
| } |
| |
| <span class="kw">fn </span>client_auth_root_subjects( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Option</span><DistinguishedNames> { |
| <span class="prelude-val">Some</span>(<span class="self">self</span>.roots.get_subjects()) |
| } |
| |
| <span class="kw">fn </span>verify_client_cert( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| presented_certs: <span class="kw-2">&</span>[Certificate], |
| _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Result</span><ClientCertVerified, TLSError> { |
| <span class="kw">let </span>(cert, chain, trustroots) = prepare(<span class="kw-2">&</span><span class="self">self</span>.roots, presented_certs)<span class="question-mark">?</span>; |
| <span class="kw">let </span>now = try_now()<span class="question-mark">?</span>; |
| cert.verify_is_valid_tls_client_cert( |
| SUPPORTED_SIG_ALGS, |
| <span class="kw-2">&</span>webpki::TLSClientTrustAnchors(<span class="kw-2">&</span>trustroots), |
| <span class="kw-2">&</span>chain, |
| now, |
| ) |
| .map_err(TLSError::WebPKIError) |
| .map(|<span class="kw">_</span>| ClientCertVerified::assertion()) |
| } |
| } |
| |
| <span class="doccomment">/// A `ClientCertVerifier` that will allow both anonymous and authenticated |
| /// clients, without any name checking. |
| /// |
| /// Client authentication will be requested during the TLS handshake. If the |
| /// client offers a certificate then this acts like |
| /// `AllowAnyAuthenticatedClient`, otherwise this acts like `NoClientAuth`. |
| </span><span class="kw">pub struct </span>AllowAnyAnonymousOrAuthenticatedClient { |
| inner: AllowAnyAuthenticatedClient, |
| } |
| |
| <span class="kw">impl </span>AllowAnyAnonymousOrAuthenticatedClient { |
| <span class="doccomment">/// Construct a new `AllowAnyAnonymousOrAuthenticatedClient`. |
| /// |
| /// `roots` is the list of trust anchors to use for certificate validation. |
| </span><span class="kw">pub fn </span>new(roots: RootCertStore) -> Arc<<span class="kw">dyn </span>ClientCertVerifier> { |
| Arc::new(AllowAnyAnonymousOrAuthenticatedClient { |
| inner: AllowAnyAuthenticatedClient { roots }, |
| }) |
| } |
| } |
| |
| <span class="kw">impl </span>ClientCertVerifier <span class="kw">for </span>AllowAnyAnonymousOrAuthenticatedClient { |
| <span class="kw">fn </span>offer_client_auth(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.inner.offer_client_auth() |
| } |
| |
| <span class="kw">fn </span>client_auth_mandatory(<span class="kw-2">&</span><span class="self">self</span>, _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>) -> <span class="prelude-ty">Option</span><bool> { |
| <span class="prelude-val">Some</span>(<span class="bool-val">false</span>) |
| } |
| |
| <span class="kw">fn </span>client_auth_root_subjects( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Option</span><DistinguishedNames> { |
| <span class="self">self</span>.inner |
| .client_auth_root_subjects(sni) |
| } |
| |
| <span class="kw">fn </span>verify_client_cert( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| presented_certs: <span class="kw-2">&</span>[Certificate], |
| sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Result</span><ClientCertVerified, TLSError> { |
| <span class="self">self</span>.inner |
| .verify_client_cert(presented_certs, sni) |
| } |
| } |
| |
| <span class="doccomment">/// Turns off client authentication. |
| </span><span class="kw">pub struct </span>NoClientAuth; |
| |
| <span class="kw">impl </span>NoClientAuth { |
| <span class="doccomment">/// Constructs a `NoClientAuth` and wraps it in an `Arc`. |
| </span><span class="kw">pub fn </span>new() -> Arc<<span class="kw">dyn </span>ClientCertVerifier> { |
| Arc::new(NoClientAuth) |
| } |
| } |
| |
| <span class="kw">impl </span>ClientCertVerifier <span class="kw">for </span>NoClientAuth { |
| <span class="kw">fn </span>offer_client_auth(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="bool-val">false |
| </span>} |
| |
| <span class="kw">fn </span>client_auth_root_subjects( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Option</span><DistinguishedNames> { |
| <span class="macro">unimplemented!</span>(); |
| } |
| |
| <span class="kw">fn </span>verify_client_cert( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| _presented_certs: <span class="kw-2">&</span>[Certificate], |
| _sni: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>webpki::DNSName>, |
| ) -> <span class="prelude-ty">Result</span><ClientCertVerified, TLSError> { |
| <span class="macro">unimplemented!</span>(); |
| } |
| } |
| |
| <span class="kw">static </span>ECDSA_SHA256: SignatureAlgorithms = |
| <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::ECDSA_P256_SHA256, <span class="kw-2">&</span>webpki::ECDSA_P384_SHA256]; |
| |
| <span class="kw">static </span>ECDSA_SHA384: SignatureAlgorithms = |
| <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::ECDSA_P256_SHA384, <span class="kw-2">&</span>webpki::ECDSA_P384_SHA384]; |
| |
| <span class="kw">static </span>ED25519: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::ED25519]; |
| |
| <span class="kw">static </span>RSA_SHA256: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::RSA_PKCS1_2048_8192_SHA256]; |
| <span class="kw">static </span>RSA_SHA384: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::RSA_PKCS1_2048_8192_SHA384]; |
| <span class="kw">static </span>RSA_SHA512: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::RSA_PKCS1_2048_8192_SHA512]; |
| <span class="kw">static </span>RSA_PSS_SHA256: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA256_LEGACY_KEY]; |
| <span class="kw">static </span>RSA_PSS_SHA384: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA384_LEGACY_KEY]; |
| <span class="kw">static </span>RSA_PSS_SHA512: SignatureAlgorithms = <span class="kw-2">&</span>[<span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA512_LEGACY_KEY]; |
| |
| <span class="kw">fn </span>convert_scheme(scheme: SignatureScheme) -> <span class="prelude-ty">Result</span><SignatureAlgorithms, TLSError> { |
| <span class="kw">match </span>scheme { |
| <span class="comment">// nb. for TLS1.2 the curve is not fixed by SignatureScheme. |
| </span>SignatureScheme::ECDSA_NISTP256_SHA256 => <span class="prelude-val">Ok</span>(ECDSA_SHA256), |
| SignatureScheme::ECDSA_NISTP384_SHA384 => <span class="prelude-val">Ok</span>(ECDSA_SHA384), |
| |
| SignatureScheme::ED25519 => <span class="prelude-val">Ok</span>(ED25519), |
| |
| SignatureScheme::RSA_PKCS1_SHA256 => <span class="prelude-val">Ok</span>(RSA_SHA256), |
| SignatureScheme::RSA_PKCS1_SHA384 => <span class="prelude-val">Ok</span>(RSA_SHA384), |
| SignatureScheme::RSA_PKCS1_SHA512 => <span class="prelude-val">Ok</span>(RSA_SHA512), |
| |
| SignatureScheme::RSA_PSS_SHA256 => <span class="prelude-val">Ok</span>(RSA_PSS_SHA256), |
| SignatureScheme::RSA_PSS_SHA384 => <span class="prelude-val">Ok</span>(RSA_PSS_SHA384), |
| SignatureScheme::RSA_PSS_SHA512 => <span class="prelude-val">Ok</span>(RSA_PSS_SHA512), |
| |
| <span class="kw">_ </span>=> { |
| <span class="kw">let </span>error_msg = <span class="macro">format!</span>(<span class="string">"received unadvertised sig scheme {:?}"</span>, scheme); |
| <span class="prelude-val">Err</span>(TLSError::PeerMisbehavedError(error_msg)) |
| } |
| } |
| } |
| |
| <span class="kw">fn </span>verify_sig_using_any_alg( |
| cert: <span class="kw-2">&</span>webpki::EndEntityCert, |
| algs: SignatureAlgorithms, |
| message: <span class="kw-2">&</span>[u8], |
| sig: <span class="kw-2">&</span>[u8], |
| ) -> <span class="prelude-ty">Result</span><(), webpki::Error> { |
| <span class="comment">// TLS doesn't itself give us enough info to map to a single webpki::SignatureAlgorithm. |
| // Therefore, convert_algs maps to several and we try them all. |
| </span><span class="kw">for </span>alg <span class="kw">in </span>algs { |
| <span class="kw">match </span>cert.verify_signature(alg, message, sig) { |
| <span class="prelude-val">Err</span>(webpki::Error::UnsupportedSignatureAlgorithmForPublicKey) => <span class="kw">continue</span>, |
| res => <span class="kw">return </span>res, |
| } |
| } |
| |
| <span class="prelude-val">Err</span>(webpki::Error::UnsupportedSignatureAlgorithmForPublicKey) |
| } |
| |
| <span class="kw">fn </span>verify_signed_struct( |
| message: <span class="kw-2">&</span>[u8], |
| cert: <span class="kw-2">&</span>Certificate, |
| dss: <span class="kw-2">&</span>DigitallySignedStruct, |
| ) -> <span class="prelude-ty">Result</span><HandshakeSignatureValid, TLSError> { |
| <span class="kw">let </span>possible_algs = convert_scheme(dss.scheme)<span class="question-mark">?</span>; |
| <span class="kw">let </span>cert = webpki::EndEntityCert::from(<span class="kw-2">&</span>cert.<span class="number">0</span>).map_err(TLSError::WebPKIError)<span class="question-mark">?</span>; |
| |
| verify_sig_using_any_alg(<span class="kw-2">&</span>cert, possible_algs, message, <span class="kw-2">&</span>dss.sig.<span class="number">0</span>) |
| .map_err(TLSError::WebPKIError) |
| .map(|<span class="kw">_</span>| HandshakeSignatureValid::assertion()) |
| } |
| |
| <span class="kw">fn </span>convert_alg_tls13( |
| scheme: SignatureScheme, |
| ) -> <span class="prelude-ty">Result</span><<span class="kw-2">&</span><span class="lifetime">'static </span>webpki::SignatureAlgorithm, TLSError> { |
| <span class="kw">use </span><span class="kw">crate</span>::msgs::enums::SignatureScheme::<span class="kw-2">*</span>; |
| |
| <span class="kw">match </span>scheme { |
| ECDSA_NISTP256_SHA256 => <span class="prelude-val">Ok</span>(<span class="kw-2">&</span>webpki::ECDSA_P256_SHA256), |
| ECDSA_NISTP384_SHA384 => <span class="prelude-val">Ok</span>(<span class="kw-2">&</span>webpki::ECDSA_P384_SHA384), |
| ED25519 => <span class="prelude-val">Ok</span>(<span class="kw-2">&</span>webpki::ED25519), |
| RSA_PSS_SHA256 => <span class="prelude-val">Ok</span>(<span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA256_LEGACY_KEY), |
| RSA_PSS_SHA384 => <span class="prelude-val">Ok</span>(<span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA384_LEGACY_KEY), |
| RSA_PSS_SHA512 => <span class="prelude-val">Ok</span>(<span class="kw-2">&</span>webpki::RSA_PSS_2048_8192_SHA512_LEGACY_KEY), |
| <span class="kw">_ </span>=> { |
| <span class="kw">let </span>error_msg = <span class="macro">format!</span>(<span class="string">"received unsupported sig scheme {:?}"</span>, scheme); |
| <span class="prelude-val">Err</span>(TLSError::PeerMisbehavedError(error_msg)) |
| } |
| } |
| } |
| |
| <span class="doccomment">/// Constructs the signature message specified in section 4.4.3 of RFC8446. |
| </span><span class="kw">pub fn </span>construct_tls13_client_verify_message(handshake_hash: <span class="kw-2">&</span>[u8]) -> Vec<u8> { |
| construct_tls13_verify_message(handshake_hash, <span class="string">b"TLS 1.3, client CertificateVerify\x00"</span>) |
| } |
| |
| <span class="doccomment">/// Constructs the signature message specified in section 4.4.3 of RFC8446. |
| </span><span class="kw">pub fn </span>construct_tls13_server_verify_message(handshake_hash: <span class="kw-2">&</span>[u8]) -> Vec<u8> { |
| construct_tls13_verify_message(handshake_hash, <span class="string">b"TLS 1.3, server CertificateVerify\x00"</span>) |
| } |
| |
| <span class="kw">fn </span>construct_tls13_verify_message(handshake_hash: <span class="kw-2">&</span>[u8], context_string_with_0: <span class="kw-2">&</span>[u8]) -> Vec<u8> { |
| <span class="kw">let </span><span class="kw-2">mut </span>msg = Vec::new(); |
| msg.resize(<span class="number">64</span>, <span class="number">0x20u8</span>); |
| msg.extend_from_slice(context_string_with_0); |
| msg.extend_from_slice(handshake_hash); |
| msg |
| } |
| |
| <span class="kw">fn </span>verify_tls13( |
| msg: <span class="kw-2">&</span>[u8], |
| cert: <span class="kw-2">&</span>Certificate, |
| dss: <span class="kw-2">&</span>DigitallySignedStruct, |
| ) -> <span class="prelude-ty">Result</span><HandshakeSignatureValid, TLSError> { |
| <span class="kw">let </span>alg = convert_alg_tls13(dss.scheme)<span class="question-mark">?</span>; |
| |
| |
| <span class="kw">let </span>cert = webpki::EndEntityCert::from(<span class="kw-2">&</span>cert.<span class="number">0</span>).map_err(TLSError::WebPKIError)<span class="question-mark">?</span>; |
| |
| cert.verify_signature(alg, <span class="kw-2">&</span>msg, <span class="kw-2">&</span>dss.sig.<span class="number">0</span>) |
| .map_err(TLSError::WebPKIError) |
| .map(|<span class="kw">_</span>| HandshakeSignatureValid::assertion()) |
| } |
| |
| <span class="kw">fn </span>unix_time_millis() -> <span class="prelude-ty">Result</span><u64, TLSError> { |
| std::time::SystemTime::now() |
| .duration_since(std::time::UNIX_EPOCH) |
| .map(|dur| dur.as_secs()) |
| .map_err(|<span class="kw">_</span>| TLSError::FailedToGetCurrentTime) |
| .and_then(|secs| { |
| secs.checked_mul(<span class="number">1000</span>) |
| .ok_or(TLSError::FailedToGetCurrentTime) |
| }) |
| } |
| |
| <span class="kw">pub fn </span>verify_scts(cert: <span class="kw-2">&</span>Certificate, scts: <span class="kw-2">&</span>SCTList, logs: <span class="kw-2">&</span>[<span class="kw-2">&</span>sct::Log]) -> <span class="prelude-ty">Result</span><(), TLSError> { |
| <span class="kw">let </span><span class="kw-2">mut </span>valid_scts = <span class="number">0</span>; |
| <span class="kw">let </span>now = unix_time_millis()<span class="question-mark">?</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>last_sct_error = <span class="prelude-val">None</span>; |
| |
| <span class="kw">for </span>sct <span class="kw">in </span>scts { |
| <span class="attribute">#[cfg_attr(not(feature = <span class="string">"logging"</span>), allow(unused_variables))] |
| </span><span class="kw">match </span>sct::verify_sct(<span class="kw-2">&</span>cert.<span class="number">0</span>, <span class="kw-2">&</span>sct.<span class="number">0</span>, now, logs) { |
| <span class="prelude-val">Ok</span>(index) => { |
| <span class="macro">debug!</span>( |
| <span class="string">"Valid SCT signed by {} on {}"</span>, |
| logs[index].operated_by, logs[index].description |
| ); |
| valid_scts += <span class="number">1</span>; |
| } |
| <span class="prelude-val">Err</span>(e) => { |
| <span class="kw">if </span>e.should_be_fatal() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(TLSError::InvalidSCT(e)); |
| } |
| <span class="macro">debug!</span>(<span class="string">"SCT ignored because {:?}"</span>, e); |
| last_sct_error = <span class="prelude-val">Some</span>(e); |
| } |
| } |
| } |
| |
| <span class="comment">/* If we were supplied with some logs, and some SCTs, |
| * but couldn't verify any of them, fail the handshake. */ |
| </span><span class="kw">if </span>!logs.is_empty() && !scts.is_empty() && valid_scts == <span class="number">0 </span>{ |
| <span class="macro">warn!</span>(<span class="string">"No valid SCTs provided"</span>); |
| <span class="kw">return </span><span class="prelude-val">Err</span>(TLSError::InvalidSCT(last_sct_error.unwrap())); |
| } |
| |
| <span class="prelude-val">Ok</span>(()) |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="rustls" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
