diff --git a/app.js b/app.js
index fcacb77..1738a2c 100644
--- a/app.js
+++ b/app.js
@@ -43,6 +43,9 @@ function run() {
     };
     console.log('opts', opts);
     Keypairs.generate(opts).then(function (results) {
+      var der = x509.packPkcs8(results.private);
+      console.log(der)
+      // Pem.encode(x509.packPkcs8(privateJwk))
       $('.js-jwk').innerText = JSON.stringify(results, null, 2);
       //
       $('.js-loading').hidden = true;
diff --git a/index.html b/index.html
index da066a9..0d35e9a 100644
--- a/index.html
+++ b/index.html
@@ -66,8 +66,10 @@
       <summary>ACME Account Response</summary>
       <pre><code class="js-acme-account-response">&nbsp;</code></pre>
     </details>
-
+    <script src="./lib/bluecrypt-encoding.js"></script>
     <script src="./lib/ecdsa.js"></script>
+    <script src="./lib/asn1-packer.js"></script>
+    <script src="./lib/x509.js"></script>
     <script src="./lib/rsa.js"></script>
     <script src="./lib/keypairs.js"></script>
     <script src="./lib/acme.js"></script>
diff --git a/lib/bluecrypt-encoding.js b/lib/bluecrypt-encoding.js
index d3f2292..7dc1073 100644
--- a/lib/bluecrypt-encoding.js
+++ b/lib/bluecrypt-encoding.js
@@ -1,6 +1,6 @@
 (function (exports) {
 
-var Enc = exports.BluecryptEncoding = {};
+var Enc = exports.Enc = {};
 
 Enc.bufToBin = function (buf) {
   var bin = '';
diff --git a/lib/x509.js b/lib/x509.js
index 63d1a7d..114375d 100644
--- a/lib/x509.js
+++ b/lib/x509.js
@@ -128,7 +128,7 @@
     var x = Enc.base64ToHex(jwk.x);
     var y = Enc.base64ToHex(jwk.y);
     var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
-    return Enc.hexToUint8(
+    return Enc.hexToBuf(
       ASN1('30'
         , ASN1.UInt('01')
         , ASN1('04', d)
@@ -141,7 +141,7 @@
     var x = Enc.base64ToHex(jwk.x);
     var y = Enc.base64ToHex(jwk.y);
     var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
-    return Enc.hexToUint8(
+    return Enc.hexToBuf(
       ASN1('30'
         , ASN1.UInt('00')
         , ASN1('30'
@@ -159,7 +159,7 @@
     var x = Enc.base64ToHex(jwk.x);
     var y = Enc.base64ToHex(jwk.y);
     var objId = ('P-256' === jwk.crv) ? OBJ_ID_EC : OBJ_ID_EC_384;
-    return Enc.hexToUint8(
+    return Enc.hexToBuf(
       ASN1('30'
         , ASN1('30'
           , OBJ_ID_EC_PUB