Set [[extractable]] and [[usages]] in en/decapsulateKey (#39)

Fixes #36.

Author: panva

index.html

@@ -395,6 +395,19 @@ <h4>The encapsulateKey method</h4>
               |extractable| and |usages|.
             </p>
           </li>
+          <li>
+            <p>
+              Set the <a data-cite="webcrypto#dfn-CryptoKey-slot-extractable">`[[extractable]]`</a> internal
+              slot of |sharedKey| to |extractable|.
+            </p>
+          </li>
+          <li>
+            <p>
+              Set the <a data-cite="webcrypto#dfn-CryptoKey-slot-usages">`[[usages]]`</a> internal slot of
+              |sharedKey| to the <a data-cite="webcrypto#concept-normalized-usages">normalized value</a>
+              of |usages|.
+            </p>
+          </li>
           <li>
             <p>
               Let |encapsulatedKey| be a new {{EncapsulatedKey}} dictionary
@@ -629,6 +642,19 @@ <h4>The decapsulateKey method</h4>
               |extractable| and |usages|.
             </p>
           </li>
+          <li>
+            <p>
+              Set the <a data-cite="webcrypto#dfn-CryptoKey-slot-extractable">`[[extractable]]`</a> internal
+              slot of |sharedKey| to |extractable|.
+            </p>
+          </li>
+          <li>
+            <p>
+              Set the <a data-cite="webcrypto#dfn-CryptoKey-slot-usages">`[[usages]]`</a> internal slot of
+              |sharedKey| to the <a data-cite="webcrypto#concept-normalized-usages">normalized value</a>
+              of |usages|.
+            </p>
+          </li>
           <li>
             <p>
               [= Queue a global task =] on the <a data-cite="webcrypto#dfn-crypto-task-source">crypto task source</a>,