Revision 726053 of CryptoKey

<p>{{APIRef}}{{SeeCompatTable}}</p>

<p>The <strong><code>CryptoKey</code></strong> interface represents a cryptographic {{glossary("key")}} derived from a specific key algorithm.</p>

<h2 id="Properties">Properties</h2>

<p><em>This interface doesn't inherit any property.</em></p>

<dl>
 <dt>{{domxref("CryptoKey.type")}}</dt>
 <dd>Returns an enumerated value representing the type of the key, a secret key (for symmetric algorithm), a public or a private key (for an asymmetric algorithm)</dd>
 <dt>{{domxref("CryptoKey.extractable")}}</dt>
 <dd>Returns a {{jsxref("Boolean")}} indicating if the raw information may be exported to the application or not.</dd>
 <dt>{{domxref("CryptoKey.algorithm")}}</dt>
 <dd>Returns an opaque object representing a particular cipher the key has to be used with.</dd>
 <dt>{{domxref("CryptoKey.usages")}}</dt>
 <dd>Returns an array of enumerated values indicating which usage of the key are permitted.</dd>
</dl>

<h2 id="Methods">Methods</h2>

<p><em>This interface neither inherits, nor implements, any method.</em></p>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{ SpecName('Web Crypto API', '#dfn-CryptoKey', 'CryptoKey') }}</td>
   <td>{{ Spec2('Web Crypto API') }}</td>
   <td>Initial definition.</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{ CompatibilityTable() }}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{ CompatChrome(37) }}</td>
   <td>{{ CompatGeckoDesktop(34) }}</td>
   <td>{{ CompatNo() }}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatNo }}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>37</td>
   <td>{{ CompatChrome(37) }}</td>
   <td>{{ CompatGeckoMobile(34) }}</td>
   <td>{{ CompatNo }}</td>
   <td>{{ CompatUnknown() }}</td>
   <td>{{ CompatNo }}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_also">See also</h2>

<ul>
 <li>{{domxref("Crypto")}} and {{domxref("Crypto.subtle")}}.</li>
</ul>