diff --git a/lib/generate-privkey-forge.js b/lib/generate-privkey-forge.js
index 686466f..890fbb6 100644
--- a/lib/generate-privkey-forge.js
+++ b/lib/generate-privkey-forge.js
@@ -5,19 +5,27 @@ var Rasha = require('rasha');
 module.exports = function (bitlen, exp) {
   var k = require('node-forge').pki.rsa
     .generateKeyPair({ bits: bitlen || 2048, e: exp || 0x10001 }).privateKey;
-  return Rasha.exportSync({
-    jwk: {
-      kty: "RSA"
-    , n: _toUrlBase64(k.n)
-    , e: _toUrlBase64(k.e)
-    , d: _toUrlBase64(k.d)
-    , p: _toUrlBase64(k.p)
-    , q: _toUrlBase64(k.q)
-    , dp: _toUrlBase64(k.dP)
-    , dq: _toUrlBase64(k.dQ)
-    , qi: _toUrlBase64(k.qInv)
+  var jwk = {
+    kty: "RSA"
+  , n: _toUrlBase64(k.n)
+  , e: _toUrlBase64(k.e)
+  , d: _toUrlBase64(k.d)
+  , p: _toUrlBase64(k.p)
+  , q: _toUrlBase64(k.q)
+  , dp: _toUrlBase64(k.dP)
+  , dq: _toUrlBase64(k.dQ)
+  , qi: _toUrlBase64(k.qInv)
+  };
+  return {
+    publicKeyPem: Rasha.exportSync({ jwk: jwk, public: true })
+  , privateKeyPem: Rasha.exportSync({ jwk: jwk })
+  , privateKeyJwk: jwk
+  , publicKeyJwk: {
+      kty: jwk.kty
+    , n: jwk.n
+    , e: jwk.e
     }
-  });
+  };
 };
 
 function _toUrlBase64(fbn) {
@@ -37,5 +45,9 @@ function _toUrlBase64(fbn) {
 }
 
 if (require.main === module) {
-  console.log(module.exports(2048, 0x10001));
+  var keypair = module.exports(2048, 0x10001);
+  console.info(keypair.privateKeyPem);
+  console.warn(keypair.publicKeyPem);
+  //console.info(keypair.privateKeyJwk);
+  //console.warn(keypair.publicKeyJwk);
 }
diff --git a/lib/generate-privkey-node.js b/lib/generate-privkey-node.js
index 0a2ff88..1502e38 100644
--- a/lib/generate-privkey-node.js
+++ b/lib/generate-privkey-node.js
@@ -1,7 +1,9 @@
 'use strict';
 
+var Rasha = require('rasha');
+
 module.exports = function (bitlen, exp) {
-  return require('crypto').generateKeyPairSync(
+  var keypair = require('crypto').generateKeyPairSync(
     'rsa'
   , { modulusLength: bitlen
     , publicExponent: exp
@@ -14,9 +16,20 @@ module.exports = function (bitlen, exp) {
       , format: 'pem'
       }
     }
-  ).privateKey.trim();
+  );
+  var result = {
+    publicKeyPem: keypair.publicKey.trim()
+  , privateKeyPem: keypair.privateKey.trim()
+  };
+  result.publicKeyJwk = Rasha.importSync({ pem: result.publicKeyPem, public: true });
+  result.privateKeyJwk = Rasha.importSync({ pem: result.privateKeyPem });
+  return result;
 };
 
 if (require.main === module) {
-  console.log(module.exports(2048, 0x10001));
+  var keypair = module.exports(2048, 0x10001);
+  console.info(keypair.privateKeyPem);
+  console.warn(keypair.publicKeyPem);
+  //console.info(keypair.privateKeyJwk);
+  //console.warn(keypair.publicKeyJwk);
 }
diff --git a/lib/generate-privkey-ursa.js b/lib/generate-privkey-ursa.js
index feac7a5..2ad7979 100644
--- a/lib/generate-privkey-ursa.js
+++ b/lib/generate-privkey-ursa.js
@@ -1,5 +1,7 @@
 'use strict';
 
+var Rasha = require('rasha');
+
 module.exports = function (bitlen, exp) {
   var ursa;
   try {
@@ -7,9 +9,20 @@ module.exports = function (bitlen, exp) {
   } catch(e) {
     ursa = require('ursa-optional');
   }
-  return ursa.generatePrivateKey(bitlen || 2048, exp || 65537).toPrivatePem().toString('ascii').trim();
+  var keypair = ursa.generatePrivateKey(bitlen, exp);
+  var result = {
+    publicKeyPem: keypair.toPublicPem().toString('ascii').trim()
+  , privateKeyPem: keypair.toPrivatePem().toString('ascii').trim()
+  };
+  result.publicKeyJwk = Rasha.importSync({ pem: result.publicKeyPem, public: true });
+  result.privateKeyJwk = Rasha.importSync({ pem: result.privateKeyPem });
+  return result;
 };
 
 if (require.main === module) {
-  console.log(module.exports(2048, 0x10001));
+  var keypair = module.exports(2048, 0x10001);
+  console.info(keypair.privateKeyPem);
+  console.warn(keypair.publicKeyPem);
+  //console.info(keypair.privateKeyJwk);
+  //console.warn(keypair.publicKeyJwk);
 }
diff --git a/lib/generate-privkey.js b/lib/generate-privkey.js
index 1d580d6..287bc1b 100644
--- a/lib/generate-privkey.js
+++ b/lib/generate-privkey.js
@@ -3,8 +3,8 @@
 var oldver = false;
 
 module.exports = function (bitlen, exp) {
-  bitlen = parseInt(bitlen, 10);
-  exp = parseInt(exp, 10);
+  bitlen = parseInt(bitlen, 10) || 2048;
+  exp = parseInt(exp, 10) || 65537;
 
   try {
     return require('./generate-privkey-node')(bitlen, exp);