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13 KiB
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<a href="index.html" class="title">fast-srp-hap</a>
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<h1>fast-srp-hap</h1>
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</div>
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</header>
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<a href="#fast-srp-hap" id="fast-srp-hap" style="color: inherit; text-decoration: none;">
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<h1>fast-srp-hap</h1>
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</a>
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<p><img src="https://badgen.net/npm/v/fast-srp-hap" alt="NPM-Version">
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<img src="https://badgen.net/npm/dt/fast-srp-hap" alt="NPM-Downloads">
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<img src="https://github.com/homebridge/fast-srp/workflows/Node-CI/badge.svg" alt="Node-CI"></p>
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<p>Is a pure <a href="https://nodejs.org/">NodeJS</a> implementation of the <a href="http://srp.stanford.edu/">SRP6a protocol</a>.</p>
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<p>It's a derived work of <a href="http://jedparsons.com/">Jed Parson</a>'s <a href="https://github.com/jedp/node-srp">node-srp</a> and <a href="http://www-cs-students.stanford.edu/~tjw/">Tom Wu</a>'s <a href="http://www-cs-students.stanford.edu/~tjw/jsbn/">jsbn</a>.</p>
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<a href="#creating-the-verifier" id="creating-the-verifier" style="color: inherit; text-decoration: none;">
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<h2>Creating the Verifier</h2>
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</a>
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<pre><code class="language-ts"><span class="hljs-keyword">import</span> { SRP } <span class="hljs-keyword">from</span> <span class="hljs-string">'fast-srp-hap'</span>;
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<span class="hljs-comment">/**
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* Computes the verifier of a user. Only needed to add the user to the auth system.
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*
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* @param {string} I Username to compute verifier
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* @param {string} P Password
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* @return {Promise<{salt: Buffer, verifier: Buffer}>}
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*/</span>
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<span class="hljs-keyword">async</span> <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">srp6a_create_user</span>(<span class="hljs-params">I: <span class="hljs-built_in">string</span>, P: <span class="hljs-built_in">string</span></span>) </span>{
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<span class="hljs-keyword">const</span> salt = <span class="hljs-keyword">await</span> SRP.genKey(<span class="hljs-number">32</span>);
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<span class="hljs-keyword">return</span> {
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<span class="hljs-comment">// The salt is required for authenticating the user later</span>
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salt,
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verifier: SRP.computeVerifier(SRP.params[<span class="hljs-number">4096</span>], salt, Buffer.from(I), Buffer.from(P)),
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};
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}
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<span class="hljs-keyword">await</span> srp6a_create_user(<span class="hljs-string">'Zarmack Tanen'</span>, <span class="hljs-string">'*****'</span>).then(<span class="hljs-function">(<span class="hljs-params">{salt, verifier}</span>) =></span> {
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<span class="hljs-built_in">console</span>.log(<span class="hljs-string">'SRP6a verifier and salt of Zarmack Tanen user is %s and %s'</span>,
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verifier.toString(<span class="hljs-string">'hex'</span>), salt.toString(<span class="hljs-string">'hex'</span>));
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});</code></pre>
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<a href="#server" id="server" style="color: inherit; text-decoration: none;">
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<h2>Server</h2>
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</a>
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<pre><code class="language-ts"><span class="hljs-keyword">import</span> {SRP, SrpServer} <span class="hljs-keyword">from</span> <span class="hljs-string">'fast-srp-hap'</span>;
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<span class="hljs-function">(<span class="hljs-params"><span class="hljs-keyword">async</span> (<span class="hljs-params"></span>) => {
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<span class="hljs-comment">// Get the user details from somewhere</span>
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<span class="hljs-keyword">const</span> user = {
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username: 'username', <span class="hljs-comment">// Or a Buffer</span>
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<span class="hljs-comment">// If we have the plaintext password</span>
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salt: <span class="hljs-keyword">await</span> SRP.genKey(<span class="hljs-params">32</span>),
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password: 'password', <span class="hljs-comment">// Or a Buffer</span>
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<span class="hljs-comment">// If we have a saved verifier</span>
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salt: Buffer.<span class="hljs-keyword">from</span>(<span class="hljs-params">'...'</span>),
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verifier: Buffer.<span class="hljs-keyword">from</span>(<span class="hljs-params">'...'</span>),
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};
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<span class="hljs-comment">// Generate a secret key</span>
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<span class="hljs-keyword">const</span> secret = <span class="hljs-keyword">await</span> SRP.genKey(<span class="hljs-params">32</span>);
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<span class="hljs-keyword">const</span> server = <span class="hljs-keyword">new</span> SrpServer(<span class="hljs-params">SRP.params[3076], user, secret</span>); <span class="hljs-comment">// For Apple SRP use params.hap</span>
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<span class="hljs-comment">// ...</span>
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}</span>)<span class="hljs-params">()</span>;</span></code></pre>
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<a href="classes/srp.html" class="tsd-kind-icon">SRP</a>
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<a href="classes/srpclient.html" class="tsd-kind-icon">Srp<wbr>Client</a>
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<a href="globals.html#identity" class="tsd-kind-icon">Identity</a>
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<a href="globals.html#passwordidentity" class="tsd-kind-icon">Password<wbr>Identity</a>
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<a href="globals.html#verifieridentity" class="tsd-kind-icon">Verifier<wbr>Identity</a>
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