         <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight"><code><span class="nf">init</span><span class="p">(</span><span class="n">from</span> <span class="nv">data</span><span class="p">:</span> <span class="kt">Data</span><span class="p">,</span> <span class="nv">version</span><span class="p">:</span> <span class="kt"><a href="../Enums/HKDFVersion.html">HKDFVersion</a></span><spa