Merge pull request #349 from kubuntux/patch-dkim

DKIM: changed encoding of public and private keys

lib/dkim-handler.js

@@ -30,11 +30,11 @@ class DkimHandler {
             modulusLength: keyBits || 2048, // options
             publicExponent: keyExponent || 65537,
             publicKeyEncoding: {
-                type: 'pkcs1',
+                type: 'spki',
                 format: 'pem'
             },
             privateKeyEncoding: {
-                type: 'pkcs1',
+                type: 'pkcs8',
                 format: 'pem'
             }
         });