diff --git a/index.html b/index.html
index 8e1a5f7..5995dbc 100644
--- a/index.html
+++ b/index.html
@@ -574,6 +574,30 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 256, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                Let |jwkPrivate| be the {{JsonWebKey/d}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPrivate| is not 256, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -599,6 +623,18 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 256, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -1437,6 +1473,30 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 448, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                Let |jwkPrivate| be the {{JsonWebKey/d}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPrivate| is not 448, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -1462,6 +1522,18 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 448, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -2321,6 +2393,30 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 256, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                Let |jwkPrivate| be the {{JsonWebKey/d}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPrivate| is not 256, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -2346,6 +2442,18 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 256, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -3251,6 +3359,30 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 448, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                Let |jwkPrivate| be the {{JsonWebKey/d}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPrivate| is not 448, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the
@@ -3276,6 +3408,18 @@ <h4>Operations</h4>
                                 of [[RFC8037]], then [= exception/throw =] a {{DataError}}.
                               </p>
                             </li>
+                            <li>
+                              <p>
+                                Let |jwkPublic| be the {{JsonWebKey/x}} field of |jwk| interpreted
+                                according to Section 2 of [[RFC8037]].
+                              </p>
+                            </li>
+                            <li>
+                              <p>
+                                If the <a data-cite="webcrypto#dfn-length-in-bits">length in bits</a>
+                                of |jwkPublic| is not 448, then [= exception/throw =] a {{DataError}}.
+                              </p>
+                            </li>
                             <li>
                               <p>
                                 Let |key| be a new {{CryptoKey}} object that represents the