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Javascript.html
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<!DOCTYPE html>
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<title>Using the Javascript bindings of HACL* — HACL* and EverCrypt Manual documentation</title>
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<p class="caption"><span class="caption-text">Contents:</span></p>
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<li class="toctree-l1"><a class="reference internal" href="HaclValeEverCrypt.html">HACL*, Vale, and EverCrypt</a></li>
<li class="toctree-l1"><a class="reference internal" href="Supported.html">List of supported algorithms</a></li>
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<li class="toctree-l1"><a class="reference internal" href="General.html">Digging into the F* source code</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">Using the Javascript bindings of HACL*</a><ul>
<li class="toctree-l2"><a class="reference internal" href="#example">Example</a></li>
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<div class="section" id="using-the-javascript-bindings-of-hacl">
<h1>Using the Javascript bindings of HACL*<a class="headerlink" href="#using-the-javascript-bindings-of-hacl" title="Permalink to this headline">¶</a></h1>
<p>To use the Javascript bindings of HACL*, please obtain the corresponding
<a class="reference external" href="https://www.npmjs.com/package/hacl-wasm">Node.js package</a>. These bindings
actually call WebAssembly functions that are compiled directly from the F*
source code using the KreMLin compiler.</p>
<p>The <cite>jsdoc</cite> documentation of the package can be found <a class="reference external" href="https://hacl-star.github.io/javascript_doc/">here</a>.
Please note that the API is asynchronous (it uses promises).</p>
<div class="section" id="example">
<h2>Example<a class="headerlink" href="#example" title="Permalink to this headline">¶</a></h2>
<p>Here is a small example of how to use the library (with Node.js) :</p>
<div class="highlight-javascript notranslate"><div class="highlight"><pre><span></span><span class="kd">var</span> <span class="nx">hacl</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s2">"hacl-wasm"</span><span class="p">);</span>
<span class="nx">hacl</span><span class="p">.</span><span class="nx">Curve25519</span><span class="p">.</span><span class="nx">ecdh</span><span class="p">(</span><span class="k">new</span> <span class="nx">Uint8Array</span><span class="p">(</span><span class="mi">32</span><span class="p">),</span> <span class="k">new</span> <span class="nx">Uint8Array</span><span class="p">(</span><span class="mi">32</span><span class="p">)).</span><span class="nx">then</span><span class="p">(</span><span class="kd">function</span> <span class="p">(</span><span class="nx">result</span><span class="p">)</span> <span class="p">{</span>
<span class="c1">// Here result contains an Uint8Array of size 32 with the DH exchange result</span>
<span class="p">});</span>
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